An optical wavefront sensor has an array of microlenses and an associated focal plane array sensor. The optical wavefront sensor further includes a plurality of polarization- modifying elements, each associated with a microlens, that modify the polarization of light passing through the microlens. The polarization-modifying elements are arranged in first and second groups, and are deployed such that closest-neighbor microlenses of the array of microlenses are associated with polarization-modifying elements from different groups. The focal plane array sensor has multiple pixels, each having first and second subpixels configured to sense a different polarization state. The optical wavefront sensor further includes a processing system that processes outputs from the focal plane array sensor to analyze the optical wavefront of light entering the array of microlenses, employing relative intensities of the subpixels to associate focal plane spots with corresponding microlenses.
A plurality of channel symbols, including first and second channel symbols broadcast by at least one source node of a wireless communication network, are received at a plurality of relay nodes of the wireless communication network. The channel symbols represent at least part of at least one message intended for receipt by at least one destination node of the wireless communication network. For each of the plurality of channel symbols, the relay nodes collectively perform at least two channel symbol formations according to a channel symbol formation scheme. Each relay node broadcasts at least two channel symbols, delayed one with respect to another, derived from at least one of the channel symbols formed by the relay node according to the channel symbol formation scheme. The broadcasting of a channel symbol by a relay node occurs simultaneously with the broadcasting of a channel symbol by at least one other relay node.
A turbojet engine (10) includes a housing (12) and a rotor (20) having a rotor body (26) supported within the housing on a rotatable shaft (22). The rotor body has an intake- facing side with compressor blades (28) for compressing inlet gases to provide a high- pressure region (30) around a periphery of the rotor body, and an outlet-facing side with turbine blades (32) driven by hot gases passing from a combustion chamber (16) to an outlet. The rotor (20) includes outwardly-extending fuel-ejection channels (38), extending to the periphery of the rotor body (26), for conveying the fuel under a centrifugal effect so as to deliver the fuel into high-pressure region (30).
F02C 3/04 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor
F23R 3/00 - Continuous combustion chambers using liquid or gaseous fuel
F01D 5/04 - Blade-carrying members, e.g. rotors for radial-flow machines or engines
F02C 3/08 - Gas-turbine plants characterised by the use of combustion products as the working fluid having a turbine driving a compressor the compressor comprising at least one radial stage
F02K 3/00 - Plants including a gas turbine driving a compressor or a ducted fan
4.
EMBEDDING FUNCTIONAL ELECTRONIC DEVICES IN FIBER REINFORCED POLYMERS THROUGH SIMULTANEOUS SINTERING AND CURING
A method of embedding an electronic device in a composite structure comprises: a) placing the electronic device on one or more prepreg layer(s) of the composite structure; b) printing a trace of conductive ink on the prepreg layer, wherein, following the placing and printing steps, the electronic device and the trace are in contact with each other; and c) simultaneously curing the composite structure, sintering the ink, and forming an electrical connection between the sintered ink and the electronic device.
B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
B29C 65/02 - Joining of preformed partsApparatus therefor by heating, with or without pressure
A laser imaging system is disclosed for generating an image of a target. The system includes a laser seeder for generating a laser beam. The beam is split into two beams, with one being sent to a CBC unit and the other to a reference unit. Both beams are broadened and the beam sent to the CBC unit is split into multiple beamlets which are transmitted to the target. A distance and velocity determination unit measures the distance to the target and the beam sent to the reference unit is delayed by a round trip period corresponding to the distance. The beam returned from the target is interfered with the broadened and delayed reference beam. An electrical signal corresponding to the combined beam is generated and used to phase lock all the CBC transmitted beams on the target and to construct an image of the target.
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
A wireless communication network has a plurality of nodes. A first node of the plurality of nodes transmits a signal of interest intended for receipt by a second node of the plurality of nodes that is a relay node in routing path from the first node. A third node of the plurality of nodes transmits an interferer signal simultaneously with, and on a same frequency channel as, the signal of interest by the first node. The second node performs beamforming to detect the signal of interest and to reject the interferer signal.
H04B 7/06 - Diversity systemsMulti-antenna systems, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
The present invention relates to a method for manufacturing a 3D-printed object, comprising: a) printing a 3D object on a printing bed, wherein at least a part of the 3D object is integrated with a portion of the printing bed; and b) extracting the portion of the printing bed integrated with the 3D object to form a 3D printed object with a mirror surface assimilated within the portion of the printing bed.
B22F 5/10 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
A method of attaching a chip and a printed circuit board, comprises additively manufacturing an array of conductive standoffs onto conductive pads on a surface of the chip, and connecting the printed circuit board to the array of conductive standoffs.
A frangible missile launch canister cover comprises: (1) a bottom layer consisting of a plastic structure configured with weakening points; (2) an intermediate layer consisting of an electroless metal layer; (3) a top elastomeric layer; (4) one or more structural elements adapted to couple said layers to a canister.
F41F 3/04 - Rocket or torpedo launchers for rockets
B32B 15/00 - Layered products essentially comprising metal
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
A method for constructing under-the-canopy terrain imagery, the method comprises the steps of: a. capturing overlapping images to cover an area-of-interest from an imaging sensor on an aerial platform; b. performing bundle adjustment utilizing parameters of said imaging sensor at any given point of capturing the images; c. training a neural network model for implicit volumetric rendering, wherein said model is configured to generate simulated views from any point of said area-of-interest; and d. generating terrain images by discarding occluding objects above ground level from the scene.
The invention provides methods and apparatus for protecting a DPAL optical window from damage caused by exposure to alkali atoms in the DPAL gain medium, in which an ion-deflecting, applied electric field is formed inside an enhanced ionization region which is proximal to the DPAL optical window. Ionization inside this region is enhanced by photoionization and/or electrostatic discharge. Photoionization is either a single-photon process involving photons from an ionizing laser beam or a multi-photon process involving photons from an optical pumping beam and/or an ionizing laser beam. The invention may be used in combination with other window protection techniques proposed in the prior art.
A MANET has a plurality of nodes and operates in the presence of another radio network. Each of the MANET nodes obtains frequency channel information associated with the radio network from detected transmissions of the radio network. Each node of a first subset of the MANET nodes transmits the obtained frequency channel information according to a cooperative signaling scheme. Each node of a second subset of the MANET nodes receives the obtained frequency channel information transmitted from at least some of the nodes of the first subset. For each node of one or more nodes in the second subset, the node forms a channel map based in part on the received obtained frequency channel information and the frequency channel information obtained by the node. In certain embodiments, at least one node of the one or more nodes in the second subset operates its transceiver according to the channel map.
A system for synchronizing a response to an approaching object includes an event camera deployed to monitor a field of view, a pulsed active illumination system deployed to deliver pulses of illumination towards at least part of the field of view and a processing system The processing system monitors events from the event camera to detect a looming object, and then tracks the looming object and processes events associated with the looming object to determine an estimated passing time and passing distance from the event camera. The processing system also receives events from the event camera occurring within a defined period after actuation of a pulse of the illumination towards the looming object and derives from those events a correction to the motion parameters.
A method for estimating a true height of a target from received radar signals scattered from the target and a surface in a multipath scenario, includes: deriving from a sequence of radar measurements received over a period of time successive data pairs of a measure of slant range and a multipath corrupted (MPC) target elevation; generating from the data pairs a representation of the variation of MPC target elevation with slant range over a range window having a variable length; inputting the representation to a Sequence-to-Sequence (Seq2Seq) neural network which has been trained on a dataset comprising variations of MPC target elevation with slant range for targets at different heights; and generating an estimate of the true height of the target using the trained neural network.
A thermally-compensated optical system (30) has a thermally-responsive actuator assembly (38) between first and second optical components (32, 34) arrayed along an optical axis. The actuator assembly has actuators (10) integrated into a collar encircling the optical axis. Each actuator has two interconnected beams (12a, 12b) from a first material and a rod (18) associated with the ends of both beams such that a distance between the ends is determined by a length of the rod. The rod is formed from a second material having a coefficient of thermal expansion different from that of the first material such that a variation in temperature causes deformation of the actuators, thereby varying a height of the actuators according to an effective coefficient of thermal expansion with a magnitude greater than that of both materials. This adjusts a relative position of the first and second components along the optical axis.
A long-range reconnaissance pod comprises a cylindrical body and a hollow enclosure forward to said body within which an optical sensor configured to image areas of interest during a long-range reconnaissance mission is housed, wherein a casing of said forward hollow enclosure comprises a target-facing section and a target-opposing section that both extend to a leading edge of said pod, and wherein an optical window adapted to protect said optical sensor from external flow is secured to said target-facing section, and both sections are configured with an external aerodynamic design that renders the optical window substantially optically distortion-free.
A missile system includes a sight having a targeting image sensor for obtaining a reference image and receiving an input defining a desired point of impact, and a missile. The missile has a seeker image sensor having an iFOV that is at least three times wider in each dimension than an iFOV of the targeting image sensor. A processing system of the missile receives the reference image, receives sampled images from the seeker image sensor during flight, and performs image registration between the reference image and the sampled image. The image registration includes down-sampling of the reference image so as to match a resolution of the sampled images. The image registration is used to determine the desired point of impact within the sampled images, and the missile is steered towards the desired point of impact.
A system for illuminating a target in the presence of atmospheric turbulence includes a coherent beam combining (CBC) subsystem, an atmospheric wave-front sensor (AWS) subsystem, a multi-channel photo-detector (MCPD) subsystem, an auxiliary light source, and a receiving optical aperture. The CBC subsystem forms a multiplicity of CBC sub-beams and an reference beam, all of which fall in a wavelength band that is different from that of the auxiliary light source. The auxiliary light source may be a laser or a portion of the solar spectrum of the Sun. An AWS controller provides closed-loop compensation of atmospheric turbulence for low power auxiliary reflection and reference beams. A MCPD controller provides closed-loop compensation of high-frequency laser noise and transfers the wavefront correction from the reference to the high power CBC laser. The frequency of the MCPD controller is at least an order of magnitude greater than the bandwidth of the AWS controller.
G01S 17/66 - Tracking systems using electromagnetic waves other than radio waves
G01S 17/36 - Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
G01S 17/02 - Systems using the reflection of electromagnetic waves other than radio waves
G01C 3/02 - Measuring distances in line of sightOptical rangefinders Details
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
19.
AN OPENING SYSTEM FOR CONTAINERS THAT ARE UNDER PRESSURE
An opening system for a container that is closed with a lid, which is located under pressure, comprising: a) an arrangement suitable to allow the opening of said lid of said container; b) a flexible element suitable to be connected to said container, and suitable to be inflated; and c) a pressure-regulating subsystem suitable to produce an increase of pressure inside said container up to a value that causes the inflation of said flexible element and its tearing.
B65D 85/00 - Containers, packaging elements or packages, specially adapted for particular articles or materials
F16K 17/14 - Safety valvesEqualising valves opening on surplus pressure on one sideSafety valvesEqualising valves closing on insufficient pressure on one side with fracturing member
F41F 3/10 - Rocket or torpedo launchers for marine torpedoes from below the surface of the water
20.
RESOURCE MANAGEMENT AND ROUTING IN MOBILE AD-HOC NETWORKS THAT EMPLOY MULTI-CHANNEL RECEPTION AND COOPERATIVE RELAYING
MANET nodes have a transceiver, operative in a first plurality of frequencies, having a transmitter that selects at least one frequency for transmission and a receiver that simultaneously receives signals in a second plurality of frequencies selected from the first plurality of frequencies. A resource allocation table is generated and has time-slots and frequencies to be allocated amongst the nodes. Data is maintained in the resource allocation table that is representative of session plans, where each session plan corresponds to a message to be propagated through the MANET from a source node to a destination node. Each session plan includes time-slot and frequency allocations associated with the source node. At each time-slot, each node of one or more nodes decides which one or more messages to broadcast during the time-slot on one or more frequencies selected from the first plurality of frequencies.
A system (10) for testing a laser proximity fuse (PF) (12) by simulating a closing velocity to a target along a line of sight (14) includes a static spiral surface (16) and a support arrangement (18) for supporting the proximity fuse (12) with the line of sight (14) directed towards an inside of static spiral surface (16). A folding mirror (20) is driven by a drive motor (22) so as to deflect the line of sight (14) towards progressively closer regions of static spiral surface, thereby simulating a closing velocity. The system can be miniaturized by employing converging optics (24). An alternative embodiment employs a shaped rotor (32) to achieve a similar effect.
A multispectral image capture device includes an imaging platform having arranged thereon an image sensor comprising a photosensitive surface and an optical unit, a gimbals system for controlling a line of sight of the image sensor, a filter wheel comprising a series of n spectral filters arranged between the image sensor and an imaging target; and a drive system configured to rotate the filter wheel at a constant velocity so as to bring each of the spectral filters into a line of sight between the image sensor and the imaging target. A controller is adapted to synchronize movement of the imaging platform, control of line of sight of the image sensor with the gimbals, and constant rotation of the filter wheel, such that the image sensor captures a sequence of overlapping step-and-stare images through the series of rotating spectral filters without changing a speed of rotation of the filter wheel.
H04N 23/11 - Cameras or camera modules comprising electronic image sensorsControl thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
H04N 23/55 - Optical parts specially adapted for electronic image sensorsMounting thereof
G01C 11/02 - Picture-taking arrangements specially adapted for photogrammetry or photographic surveying, e.g. controlling overlapping of pictures
Frequency synchronization methods provide synchronization among nodes of a decentralized communication network. At each of one or more nodes of a plurality of nodes that form a decentralized communication network, information is acquired that is indicative of a frequency associated with at least one other node of the plurality of nodes. For each of the one or more nodes, a frequency offset between a frequency of the node and a frequency of the at least one other node is determined, based in part on the acquired information.
A method of assessing safety of a trajectory of units under test over a flight range includes: setting a mission trajectory of a unit under test, wherein nominal and dispersion trajectories of the unit under test are within a delineated area; extracting from the mission trajectory a plurality of initial conditions of the unit under test; for each extracted initial condition, simulating a malfunction, and calculating an orientation of the unit under test following each simulated malfunction using an orientation transfer function of the unit under test to simulate a malfunction maneuver. The method further includes, on the basis of this calculated orientation for each simulated malfunction, determining an impact point of the unit under test with a particular plane.
Methods, systems, and computer program products simulate image-capture of a scene having at least one object of interest (OOI) by a camera. A plurality of rendered images is obtained and includes: i) a first image, at a first resolution, that is an image of the scene and excludes the OOI, ii) a second image, at a second resolution higher than the first resolution, that is an image of the OOI, iii) a third image, at the second resolution, that is an image of a region that bounds the OOI, wherein the OOI at least partially affects one or more other objects in the region, and iv) a fourth image, at the second resolution, wherein for each pixel of the fourth image, a pixel value of the pixel indicates a contribution of the OOI in the pixel. The images are processed to produce a high-resolution image of the OOI.
Flown munition that is rocket-propelled for hitting a target behind a barrier, and which comprises a rocket motor; and a successive payload that is mounted behind the rocket motor in a tandem configuration and is towed by it; and wherein the rocket motor is used for accelerating the munition towards the barrier and also serves as a sort of kinetic penetrator to clear a passage through the barrier for the successive pay load, which is connected to it and towed by it, and the successive payload (e.g. - a high-explosive charge) is adapted for delayed detonation following and just after said rocket motor hits the barrier.
F42B 12/16 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge in combination with an additional projectile or charge, acting successively on the target
A mechanism for orienting a payload support includes first and second transversely deployed drive assemblies, each having a motor that drives a drive arm. The payload support is directly pivotally mounted to a first drive arm. Connection between the second drive arm and the payload support is via a coupling linked to the second drive arm via a coupling rotary joint, and to the payload support via a support rotary joint. Both the first drive arm and the second drive arm are supported relative to the frame by sets of two bearing assemblies located on opposite sides of the center of rotation. Each of the bearing assemblies is preferably implemented as a loaded duplex bearing assembly, and most preferably with a back-to-back loaded duplex bearing assembly on each axis.
F16M 11/12 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting in more than one direction
F16M 11/20 - Undercarriages with or without wheels
G02B 27/64 - Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
28.
A PLATFORM FOR MULTI-AGENT TASK PLANNING OF AUTONOMOUS SYSTEMS
A system for multi-agent mission planning comprises a) a mission generator (MG) configured to compute a set of Mission Agent Language (MAL) missions; b) a group of agents (TGPs), each capable of performing at least one MAL mission; and c) at least one Multi-Agent Planner (MAP) adapted to receive said set of MAL missions from said MG to build an allocation vector between said MAL missions and said agents in said group; wherein each agent (TGP) is further capable of performing its assigned MAL mission per said allocation vector, while considering all other agents in its corresponding tactical group.
A method for creating a dedicated optimal local grid around a place of interest comprises: a) iteratively updating the local grid size such as to satisfy statistical constraints; and b) discontinuing the iterative process of step (a) when a predefined threshold of said statistical constraint is reached.
H04L 41/0631 - Management of faults, events, alarms or notifications using root cause analysisManagement of faults, events, alarms or notifications using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
G06F 16/2458 - Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
A temperature compensated spacer includes first and second anchoring configurations for anchoring the spacer relative to first and second elements, and a frame providing a mechanical connection between the anchoring configurations. The frame has a polygonal opening with a first diagonal extending across the width of a gap between the elements and a second diagonal extending transversely to the first diagonal. A crossbar is associated with the polygonal opening so as to span the second diagonal. The frame and the crossbar are formed from materials having differing coefficients of thermal expansion. The crossbar is deployed so as to determine a length of the second diagonal such that variation in temperature causes deformation of the frame, thereby varying a length of the first diagonal.
B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
F16B 1/00 - Devices for securing together, or preventing relative movement between, constructional elements or machine parts
G02B 7/18 - Mountings, adjusting means, or light-tight connections, for optical elements for prismsMountings, adjusting means, or light-tight connections, for optical elements for mirrors
A coherence reconstruction apparatus generates measurements of atmospheric turbulence from light reflected by a target. The apparatus is in communication with a coherent beam combining (CBC) system which illuminates a target with one or more partially coherent beams from a seed laser. The apparatus includes a variable delay module and a phase shift interferometer (PSI). The delay module uses a measurement of target time-of-flight to form a coherent delayed reference signal from the CBC seed reference laser. The delay module may incorporate an electromagnetically induced transparency medium and/or an electro-optical modulator. The PSI combines the delayed reference optical signal with a target-reflected optical signal to form an interference pattern and to determine one or more turbulence phase correction measurements. The apparatus may include a controller for generating feedback and dynamic tuning signals.
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 5/40 - Arrangement of two or more semiconductor lasers, not provided for in groups
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
32.
DEVICES HAVING A PHASED-ARRAY ANTENNA AND CALIBRATION METHOD THEREFOR
Methods and devices provide a test signal to each of a plurality of antenna channels via a test signal line. Each antenna channel includes an amplitude adjustor and a phase adjustor associated with at least one antenna element. For each antenna channel, the test signal provided to the antenna channels is modulated to produce a modulated test signal. The modulated test signal is produced by: i) controlling the amplitude adjustor of the antenna channel to vary a current amplitude of the test signal between a plurality of amplitude states, and ii) controlling the phase adjustor of the antenna channel to vary a current phase of the test signal between a plurality of phase states. A received test signal received from the antenna channels is processed to determine amplitude and phase errors associated with the modulated test signals associated with the antenna channels.
H01Q 3/26 - Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elementsArrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the distribution of energy across a radiating aperture
A reactive armor for defeating threats comprises one or more fragile reactive plates consisting of reactive material sandwiched between two fragile layers, said fragile reactive plates being contained in a housing, the void space of said housing being filled with a polymeric foam.
A CBC system includes an array of beam sources generating coherent beams directed towards a target. The beam sources have associated adjustable phase modulators and beam steering arrangements. For each of the beams in a subset of the beams, the corresponding beam steering arrangement is actuated to steer the beam, and the corresponding phase modulator is actuated to modulate a current phase of the beam between at least three phase states. A detector monitors an intensity parameter that varies as a function of an intensity of radiation impinging on the target. A controller calculates, for each of the beams in the subset, a current value that is representative of a relative intensity of the beam based at least in part on the monitored intensity parameter at each of the at least three phase states. The calculated value is indicative of a current position of the beam relative to the target.
G01S 17/06 - Systems determining position data of a target
G01S 17/02 - Systems using the reflection of electromagnetic waves other than radio waves
G01S 17/66 - Tracking systems using electromagnetic waves other than radio waves
H01S 3/101 - Lasers provided with means to change the location from which, or the direction in which, laser radiation is emitted
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 5/40 - Arrangement of two or more semiconductor lasers, not provided for in groups
G01S 7/481 - Constructional features, e.g. arrangements of optical elements
A reactive armor for defeating threats comprises an outer shell having outer and inner surfaces, an inner reactive plate, and explosive material disposed between said inner surface and said reactive plate, wherein said reactive plate is configured to be displaced away from said inner surface upon activation of said explosive material.
A multi-communication (MC) system supporting mitigation plan for interfering spurious products, comprising: a) at last one first client that is configured to perform wireless communication; b) at least one second client that is capable of generating spurious product that potentially interferes with said first client communication; c) a Clock-Frequency-Base Band Management Unit (CFBBMU) module configured to repeatedly: i. generates a spurious map based on data collected from one or more of said clients; and ii. utilizes said generated spurious map to mitigate clients' interference.
A receiver system has at least one antenna that receives a plurality of signals, including a desired signal, across a wide band of frequencies. At least one tunable filter is in signal communication with the at least one antenna, and filters the plurality of signals to produce a plurality of filtered signals. Gain control circuitry is in signal communication with the at least one tunable filter, and produces a gain adjusted version of the filtered signals. A processing unit processes received signals in a portion of the wide band to extract signal characteristics of at least one undesired signal in the portion of the wide band. The at least one tunable filter is tuned based at least in part on the signal characteristics of the at least one undesired signal to maintain the SNR of the desired signal above a threshold level at the output of the gain control circuitry.
A range-finding apparatus and method for measuring the range of a target illuminated by a coherent beam combining (CBC) system having at least two partially coherent sub-beams. The apparatus includes a phase modulation controller and a signal processor. The controller provides one or more optical phase modulation signals to the CBC system. The signal processor receives an initial measurement of target range, provided by either the CBC system or an external range-finding device and having a relatively large uncertainty, and a time-varying received intensity signal provided by the CBC system. The signal processor calculates frequency components of the intensity signal, forms rotated frequency components corresponding to a time-of-flight correction, calculates an objective function depending upon the rotated frequency components, determines a global minimum of the objective function, and calculates a corrected measurement of target range having an uncertainty which is less than that of the initial measurement of target range.
G01S 17/08 - Systems determining position data of a target for measuring distance only
G01S 13/10 - Systems for measuring distance only using transmission of interrupted, pulse modulated waves
G01S 13/20 - Systems for measuring distance only using transmission of interrupted, pulse modulated waves whereby multiple time-around echos are used or eliminated
G01S 13/84 - Systems using reradiation of radio waves, e.g. secondary radar systemsAnalogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement
G01C 3/00 - Measuring distances in line of sightOptical rangefinders
The invention relates to a thermal contact apparatus, comprising: a first plate, suitable to be connected to a heat source, absorb heat from said heat source, and transfer the heat to other components of the apparatus; a first set of fibers, suitable to absorb heat from said first plate and transfer the heat to other components of the apparatus, wherein said first set of fibers is connected to said first plate; a second set of fibers, suitable to absorb heat from said first set of fibers and thansfer the heat to other components of the apparatus, wherein said first and second sets of fibers are in contact; and a second plate, suitable to absorb heat from said second set of fibers and transfer the heat out of the apparatus, wherein said second set of fibers is connected to said second plate.
A computer-implemented method for processing a geo-location of an aerial platform, comprises: (a) providing a set of classification stages, which is trained end-to-end to provide a set of cascade decisions, wherein each cascade decision is optimized for a different classification modality and for different spatial resolution; (b) receiving a geo-location query comprising an aerial sensor image, a reference bird's eye view image-map with coordinate system and sensor pose angles measures with respect to the coordinate system; (c) projecting the aerial sensor image onto the coordinate system of the reference image-map using the pose angles measures; (d) matching between the projected sensor image and corresponding image patches in the reference satellite image-map, by applying said set of classification stages in accordance with features extraction from said images and similarity criteria; (e) generating a cascade sequencing, wherein a classification score is aggregated along a cascade path among said set of cascade stages; (f) generating a cascade decision at each stage along the cascade path based on the aggregated classification score and on defined decision logic between successive stages; (g) retrieving a geo-location associated with said aggregated classification decision; and (h) sending the retrieved geo-location to a geo-location requester.
An armed aerial platform (100) includes a weapon for firing a projectile from a barrel (102) that defines a weapon axis (104). The weapon is supported by a single-axis gimbal mechanism (116) within a central vertical slot (112) in a rigid body (108) of a UAV (108) carried by a propulsion system (114) including at least four rotary propulsion units. The gimbal mechanism (116) provides an elevation adjustment of the weapon axis (104), while the azimuth adjustment is provided by motion of the UAV (108) itself.
B64C 39/02 - Aircraft not otherwise provided for characterised by special use
B64D 7/06 - Arrangement of military equipment, e.g. armaments, armament accessories or military shielding, in aircraftAdaptations of armament mountings for aircraft the armaments being firearms movably mounted
F41A 23/56 - Arrangements for adjusting the gun platform in the vertical or horizontal position
A mechanism for steering and maneuvering an airborne body comprised of at least one actuator comprising an electric motor having a first axis, and a gear transmission for transmitting power from the electric motor to an angular motion axis of a fin that has an angular motion around a second axis to steer the airborne body, and wherein the mechanism is characterized in that the gear transmission is a beveloid gear type of transmission, an airborne body that comprised the mechanism, and a method for achieving the desired flight path of an airborne body implementing the mechanism.
A first transceiver has a beam emitter that generates first coherent beams, and first optics that direct the first coherent beams towards a target and collect radiation reflected from the target. A second transceiver has a beam emitter that generates second coherent beams, a detector, and second optics having an aperture. The second optics directs the second coherent beams towards the target via the aperture, collects radiation reflected from the target via the aperture, and guides a first radiation component of the collected radiation, that corresponds to the first coherent beams, to the detector. The detector generates, from the first radiation component, a signal indicative of an intensity of radiation impinging on the target corresponding to the first coherent beams. A control subsystem is associated with the transceivers and modifies at least one parameter of the first transceiver based on the intensity signal.
G02B 27/12 - Beam splitting or combining systems operating by refraction only
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 5/40 - Arrangement of two or more semiconductor lasers, not provided for in groups
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
44.
MULTIPLE COHERENT BEAM COMBINATION SYSTEMS SHARING A COMMON RECEIVER
A targeting receiver operates with beam emitters. Each emitter generates coherent beams directed towards a target as a composite beam having an associated signature. For each composite beam, the target reflects a proportion of radiation intensity as a reflected radiation component. A receiver telescope collects target-reflected radiation and directs the radiation to a spatial filter. The reflected radiation includes radiation components, at least some of which are combined as a combined radiation composed of the reflected radiation components. Intensity of the combined radiation indicates the intensity of the composite beams impinging on the target. The spatial filter filters the reflected radiation by selectively passing the combined radiation. Each component of the combined radiation is identifiable by the signature associated with the composite beam corresponding to the component of the combined radiation. In certain embodiments, a distinguishing module is associated with the receiver and distinguishes the components based on the signature.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
A process for determining frequency allocations for efficient spectrum management and reuse, in communication between multiple users of moving platforms and ground stations using directional antennas, comprises: (a) generating a preferential ranking list; and (b) repeatedly recalculating desirable frequency allocations for communication between platforms and stations according to said preferential ranking list and user-to-user interference data.
A pneumatic actuator for imparting velocity to a resting object, comprising a fixed member and a ram, the ram having two or more generally elongated ram members, wherein the fixed member is formed with a base plate having an inlet hole therethrough, the ram members are formed and disposed concentrically about the center axis so as to lie one within another and to move in a telescopic arrangement, the innermost one of the ram members is configured to enable it to be driven by any pressurized gas fed through the inlet hole and to drive the object, and each of the other ram members is configured to move only behind the innermost ram member; the actuator being operative to move the innermost ram member along its entire range of motion and thereby impart velocity to the object.
F15B 15/16 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
F15B 15/14 - Fluid-actuated devices for displacing a member from one position to anotherGearing associated therewith characterised by the construction of the motor unit of the straight-cylinder type
A gear locking mechanism includes a gear (or a sprocket wheel) having a series of substantially identical teeth and a locking tongue having a tooth (or teeth) configured in a locked position to engage the gear or sprocket wheel between any two of the series of substantially identical teeth of the gear or sprocket wheel. An anchoring structure restricts a degree of rotation of at least a portion of the locking tongue in the locked position. In the unlocked position, the restriction on the freedom of rotation is released. The locking tongue divided by a fixed pivot includes a movable distal portion of a see-saw having the tooth with the anchoring structure exerting a force against the proximal portion. Alternatively, the locking tongue rotates on a pin on a distal end and the anchoring structure urges a proximal portion toward the gear to lock.
A canister for storing and launching a self-propelled projectile comprises: a) an inner layer comprising an aluminum foil; b) a top layer consisting of an injected thermoplastic polymer; and c) optionally, a primer and/or a topcoat.
F42B 5/297 - Cartridge cases of metal coated with plastics
F42B 12/76 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
F42B 15/00 - Self-propelled projectiles or missiles, e.g. rocketsGuided missiles
C08J 5/04 - Reinforcing macromolecular compounds with loose or coherent fibrous material
49.
ULTRA-WIDEBAND ATTENUATOR WITH LOW PHASE VARIATION AND IMPROVED STABILITY WITH RESPECT TO TEMPERATURE VARIATIONS
12112a12b22a2b1212a3a22b 3b13a23b2a2b3a3b3b by the second control input; controlling the first and the second control inputs to obtain a desired attenuation between the input and output of the attenuator.
A power amplifier with improved stability, gain, flatness and return loss and reduced the size, which comprises a two-stage power amplifier in balanced cascode topology that consists of a first common-source stage feeding into a first common-gate stage; a second common-source stage feeding into a second common-gate stage; an input matching network for matching the input impedance of the a two-stage power amplifier to a desired signal source impedance; an output matching network for matching the output impedance of the a two-stage power amplifier to a desired load; a first positive feedback path between the gate of the first common-source stage and the drain of the second common- gate (CG) stage and a second positive feedback path between the gate of the second common-source stage and the drain of the first common-gate (CG) stage; a first negative feedback path between the drain of the first common-gate (CG) stage and the gate of the first common-source stage and a second negative feedback path between the drain of the second common-gate (CG) stage and the gate of the second common-source stage; a first inter-stage matching network between the first common-source(CS) stage and the first common-gate (CG) stage; and a second inter-stage matching network between the second common-source(CS) stage and the second common-gate (CG) stage.
H03F 1/22 - Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
H03F 1/34 - Negative-feedback-circuit arrangements with or without positive feedback
A dielectric high gradient insulator device comprises a stack of at least two dielectric layers which are in physical contact with each other and which have different dielectric constants. At least two dielectric layers are configured to form a shaped electric field, when the device is placed between electrodes having a voltage difference. The shaped electric field is in a region proximal to a surface of the at least two dielectric layers, and causes deflection of negatively charged particles away from the surface, thereby inhibiting voltage breakdown of the device. A method of manufacturing the device is also presented.
H01B 3/12 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of inorganic substances ceramics
H05H 7/22 - Details of linear accelerators, e.g. drift tubes
A total inner reflection (TIR) prism comprises two essentially triangular prisms separated by an optical coating or by a thin layer of air, wherein one of said two triangular prisms is shaped as an isosceles triangle.
B.G. NEGEV TECHNOLOGIES & APPLICATIONS LTD., AT BEN-GURION UNIVERSITY (Israel)
RAFAEL ADVANCED DEFENSE SYSTEMS LTD. (Israel)
Inventor
Schvartzman, Mark
Yehuda, Dor
Kassis, Evyatar
Joseph, Shay
Abstract
T>Tgg g g is the glass transition temperature of chalcogenide-glass, and (ii) applying a controlled pressure on the mold to effect penetration to the top surface of the chalcogenide-glass substrate, thereby to replicate the pattern of the mold to the top surface of the substrate; and (C) separating the operational mold from the patterned substrate.
B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
G03F 7/00 - Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printed surfacesMaterials therefor, e.g. comprising photoresistsApparatus specially adapted therefor
54.
TRANSFORMER-BASED MATCHING NETWORK FOR ENHANCED IC DESIGN FLEXIBILITY
An Integrated Circuit (IC) containing at least one printed transformer-based matching network, which comprises: a) at least one printed transformer-based matching network with reduced size, which comprises a printed transformer with multiple internal ports in the form of electromagnetic discontinuities, introduced along the transverse dimension of the printed transformer; reactive elements, added to of the internal ports to thereby increase the order of the transformer-based matching network, the one or more reactive elements are printed along the transverse dimension of the matching network; a printed component connected to the input port of the matching network; a printed component connected to the output port of the matching network.
Rocket armament launchable from a tubular launcher with an outside launcher non-ignition securing and motor separation during flight and a method to prevent the ignition of the armament's rocket even in the event of actuation of the armament's pyrotechnic assembly, which normally serves to eject the armament from the launcher and to ignite its rocket motor, wherein the armament comprises a gas dispersion assembly, which when the armament is not encased in the tubular launcher, prevents the ignition of the rocket motor even if the armament's pyrotechnic assembly is actuated; and a cutting and separation assembly that is actuated by the pressure of the rocket motor gases for mechanically cutting a structural connection between the rocket motor and the armament's effective payload and separate them during their flight.
F42C 15/28 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
F41F 3/045 - Rocket or torpedo launchers for rockets adapted to be carried and used by a person, e.g. bazookas
abcc) generating coherent beams directed towards a target (T). The phase modulators (14a, 14b and 14c) allow adjustment of relative phase offsets of the beams. A detector (16) monitors an intensity of the radiation impinging on an area of the target (T). A controller (18) receives the intensity parameter and controls a phase adjustment of the beams according to a deterministic (i.e., quantitative) measurement of a phase offset of each beam relative to a representative phase of the sum of all the other beams. This is achieved by using interferometric techniques, referred to herein as Target In-the-Loop Interferometry (TILI).
A heaterless hollow cathode provides electron emission current in an electric space propulsion system. A mechanical, thermal, and electromagnetic design of the cathode apparatus is presented, and a method of operation for rapid ignition and stabilization of the cathode is provided. The keeper of the cathode apparatus has a thickness change which reduces the flow of heat away from the cathode's emitter assembly. The method for heating the emitter assembly includes controlling applied voltages so that the current flowing from the emitter assembly to the keeper is maintained at a predetermined fixed value. By this method, damage to the electron emitting surfaces of the emitter assembly by electric arcing and/or by depletion of dopant materials is avoided.
A coating applied to a surface to minimize or prevent the ability of drops of super-cooled water that impact on the surface from transforming into ice, comprises one or more layers collectively providing: a) thermal insulation between the surface to be protected and the drop; and b) a superhydrophobic surface on the top.
B64D 15/00 - De-icing or preventing icing on exterior surfaces of aircraft
C09K 3/18 - Materials not provided for elsewhere for application to surface to minimize adherence of ice, mist or water theretoThawing or antifreeze materials for application to surfaces
C08J 9/32 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof from compositions containing microballoons, e.g. syntactic foams
C08J 9/34 - Chemical features in the manufacture of articles consisting of a foamed macromolecular core and a macromolecular surface layer having a higher density than the core
B05D 1/02 - Processes for applying liquids or other fluent materials performed by spraying
B32B 7/02 - Physical, chemical or physicochemical properties
59.
COMPONENTS AND CORRESPONDING METHODS OF MANUFACTURE PROVIDING VIBRATION-DAMPING PROPERTIES
A manufacturing process and corresponding mechanical components are formed by additive manufacturing so as to include fully encapsulated cavities containing powder, typically deployed in distributed locations within the component, so as to increase the damping properties of the component compared to a similar component without such cavities. Since the filled cavities are completely enclosed, they do not impinge on the overall performance characteristics of the component and do not require maintenance.
F16F 9/30 - Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
B28B 1/00 - Producing shaped articles from the material
B28B 7/04 - Moulds with adjustable parts one or more of the parts being pivotally mounted
B28B 5/00 - Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
60.
A SYSTEM AND METHOD FOR THE INSPECTION AND DETECTION OF COATING DEFECTS
A coating-defect inspection and detection system for coated articles, comprises: a) at least one light source; b) at least one image-capturing device; and c) a graphic processing unit in which the beam of said light source and the field of view of said image-capturing device overlap in the inspection area, and are aimed toward said products from different directions; and in which said image-capturing device communicates with said graphic processing unit, which is suitable to analyze the quality of the coating and/ or surface and/ or shape appearing in the captured images by the light-and-shadow effects created by said light source.
A system for quick arming of a detonation or excitation assembly, wherein the system comprises a first barrier means which, as long as it has not been removed, prevents full activation of an initiation chain of the assembly, and whose removal is dependent on receiving indication from at least one first sensor, and then its removal is reversible in a manner that it will return and once again prevent full activation of an initiation chain, and a second barrier means which also prevents full activation of the initiation chain as long as it has not been removed, and whose removal is dependent on receiving indication from at least one second sensor, and this - following after receiving indication from the first sensor, and removal of the second sensor is irreversible in a manner that leaves the initiation chain executable, and wherein the first and second sensors are independent of one another, and as long as no indication has been received from the second sensor, the first barrier means is returnable to its place in a manner that will return and once again prevent full activation of the initiation chain, and an active protection system utilizing a plurality of those quick arming system for activation of the protection system's interceptors while implementing a method for quick and selective arming of the active protection system's detonation or excitation assemblies.
B.G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY (Israel)
RAFAEL ADVANCED DEFENSE SYSTEMS LTD. (Israel)
Inventor
Peretz, Mor Mordechai
Zeltser, Ilya
Abstract
The invention relates to hierarchical-hybrid system for balancing a series of cells, said cells are divided into m modules, each module having k cells, which comprises: (A) one or two central cells in each module and additional neighboring cells, each neighboring cell being adjacent to one of said central cells; (B) two local capacitors within a local section of each module, each of said local capacitors being periodically, repeatedly, and alternately connected (a) in parallel to one of said neighboring cells, or (b) in parallel to a respective central cell; (C) one global capacitor at a global section of each module which is common to all said modules, said global capacitor receiving respective charging signals either directly or through an isolation element, separately or simultaneously from several central cells of different of said modules, thereby to charge said global capacitor to a voltage level which is identical or proportional to the average voltage level of said central cells of all said different modules;(D) a plurality of controlled switches for carrying out said alternate connections of said local capacitors, and for forming said charging signals that are provided to said global capacitor; and (E) a controller for controlling the opening and closure of said controlled switches; wherein some of said controlled switches that are used to alternately connect said local capacitors to the respective cells at each module are also commonly used at said module to simultaneously produce said charging signals for charging the global capacitor; and wherein a connecting circuitry which comprises one or more reactive components and at least a portion of said controlled switches is used to connect said local section of each module to said global section.
H02J 7/16 - Regulation of the charging current or voltage by variation of field
H02J 7/18 - Regulation of the charging current or voltage by variation of field due to variation of ohmic resistance in field circuit, using resistance switching in or out of circuit step by step
63.
UNIFIED BOOSTER FOR ARTILLERY MUNITION FUSES ENABLING DETONATING OF BOTH EXPLOSION AND EJECTION TYPE SHELLS
A unified booster for artillery ammunition fuses, that enables initiating both explosive type shells as well as ejection type shells, wherein the booster component is installable in continuation to the detonator component and the lead charge, that are usually installed in various artillery ammunition fuses, as a part of their detonation chain, and wherein the booster component is formed as a charge of explosive material that a flyer plate is installed at its one end that from the instant of installing the booster component in the fuse and mounting the fuse at the head of the shell is turned towards the shell's charge to be initiated.
A rigid or flexible protection element for reactive protection against shaped charge warheads and kinetic energy projectiles comprises a metallic or ceramic powder dispersed within a matrix of plastic explosive and a binder.
A method for inspecting and classifying discrete items comprises capturing the images of a free-falling item using at least one imaging device and analyzing the captured images using a neural network which has been trained using images and/or simulated images of regular products, defected products and Mix-Ups.
B65B 57/14 - Automatic control, checking, warning or safety devices responsive to absence, presence, abnormal feed, or misplacement of articles or materials to be packaged and operating to control, or stop, the feed of articles or material to be packaged
G06K 9/46 - Extraction of features or characteristics of the image
An explosive system and corresponding method employ a number of explosive portions, each of sub-critical dimensions so that initiation of the portion would result in incomplete detonation. A selectively-deployable spacer arrangement or deployment mechanism is deployed between a storage state in which gaps or misalignments are maintained between the explosive portions so that the explosive system remains undetonatable, and a detonable state in which the portions are brought together sufficiently to function as a combined explosive charge having effective dimensions larger than critical dimensions, rendering the explosive system detonatable.
F42B 12/02 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
F42B 12/20 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
67.
LOW-COST PROCESS OF MANUFACTURING TRANSPARENT SPINEL
The invention provides ballistic-resistant transparent objects of complex shapes consisting of magnesium aluminate spinel. The invention also provides a cost-effective industrial process for making the objects, including slip casting and sintering.
System for detecting a cyber-attack inflicted by an attacker seeking to cause physical damage to, or harm functionality of, a SCADA system managed plant, comprising passively connected to the SCADA system. Each of the industrial computerized devices comprises a processor that is configured with a data validation module to determine whether data flow outputted from a SCADA- connected controller, adapted to command operation of each electromechanical component of a corresponding controlled subsystem of the plant, is authentic, and with an alert issuing mechanism that is activated following detection that the outputted data flow is indicative of a cyber-attack perpetrated with respect to the controller. The at least one dedicated industrial computerized device is operable to passively monitor in parallel, by the one or more dedicated industrial computerized device, data communicated between each of the controllers and the SCADA system including the outputted data at the nearest points of each of the controllers; seek, by the one or more dedicated industrial computerized devices, mismatches between the plant state and the physical operation model; if a mismatch is detected, determine by the dedicated industrial computerized device whether the mismatch is indicative of a cyber-attack perpetrated with respect to one of the controllers or an operational malfunction; and upon detecting a cyber- attack, activate the alert issuing mechanism to issue a security alert.
A Cassegrain optical system has a concave primary mirror deployed for receiving incident electromagnetic radiation and generating once-reflected rays, a convex secondary mirror deployed for receiving the once-reflected rays and generating twice-reflected rays, a tertiary reflector deployed for receiving the twice-reflected rays and generating thrice-reflected rays, and a beam-folding optical element deployed between the primary mirror and the secondary mirror for deflecting the thrice-reflected rays laterally so as to exit a volume between the primary and secondary mirrors.
G02B 23/06 - Telescopes, e.g. binocularsPeriscopesInstruments for viewing the inside of hollow bodiesViewfindersOptical aiming or sighting devices involving prisms or mirrors having a focusing action, e.g. parabolic mirror
G02B 17/06 - Catoptric systems, e.g. image erecting and reversing system using mirrors only
70.
WARHEAD FOR GENERATING A BLAST ON AN EXTENDED REGION OF A TARGET SURFACE
The present invention relates to warheads with blast wave conditioners and in particular to devices for quickly removing a door to permit entry through the doorway. It discloses a device and method of shaping the pressure wave pattern by the use of inert material. The inert material of the present invention is used to reduce localized directional effects occurring at the point of impact, instead generating a more diffuse pressure-wave pattern across the target surface.
F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
A co-magnetometer gyroscope comprises a cell containing an alkali-metal and a noble-gas, the alkali-metal vapor being optically pumped with a pump laser circularly polarized and tuned to the D1 resonance, and a probe laser, linearly polarized and off- resonant, which passes through the cell perpendicular to the pump laser and measures the transverse component of the alkali-metal atoms spin polarization through optical rotation of the linearly polarized light, circuitry being provided suitable to dynamically change the optical pumping rate, thereby to obtain a high dynamic range.
G01V 3/18 - Electric or magnetic prospecting or detectingMeasuring magnetic field characteristics of the earth, e.g. declination or deviation specially adapted for well-logging
A single one time use valve, based on a Shape Memory Alloy (hereinafter - SMA) actuating component, wherein the valve comprises a nipple component given to shearing and shoving from the instant of its being severed off, in a manner that enables passage of the gas or the liquid from the valve's inlet flow opening to the valve's outlet flow opening wherein the valve is a valve of the normally closed type, or enables stopping of said gas or liquid passage from the inlet flow opening to the outlet flow opening, wherein the valve is a valve of the normally open type, and wherein the valve is characterized by that the inlet flow opening and outlet flow opening are formed substantially on at least one plain, that extends in its direction wherein it is substantially orthogonal to the valve's house assembly lengthwise axis and wherein a physical demarcation exists all the time between the gas or liquid to the valve's SMA made actuating component.
The present invention relates to directed energy weapons and, in particular, it concerns directed energy weapons based on fiber lasers for use against a target, the weapon comprising: (a) a plurality of laser units, each of the laser units comprising: (i) a fiber laser generating an output beam from a fiber, the output beam conveying power of at least 1 kW, (ii) an objective lens arrangement for focusing the output beam into a focused beam directed towards the target, and (iii) a tine adjustment mechanism for adjusting a direction of the focused beam; (b) for each of the laser units, a beam deflector arrangement deployed to deflect a portion of the focused beam as a deflected beam in a direction in predefined relation to a direction of the focused beam; (c) an angle sensing unit deployed for receiving the deflected beams and generating an output indicative of a current direction of the deflected beam for each of the laser units; and (d) a controller associated with the angle sensing unit and the fine adjustment mechanisms, the controller being configured to actuate the fine adjustment mechanisms based on the output from the angle sensing unit to maintain a desired relative alignment between the directions of the focused beams.
The invention relates to an optical system for the detection of a flying or moving object approaching a target, which comprises^ (a) one or more transmitter-receiver sets positioned at an external surface of a wall of said target, each of said transmitter-receiver sets comprising: (a.l) a light transmitter for creating a fan-like planar or curved optical curtain in front of said wall of the target; (a.2) a receiver which comprises a two-dimensional focal plane array, said focal plane array being spaced apart from said transmitter and being positioned at a plane not parallel to said optical curtain such that a field of view of said focal plane array covers at least a portion of the entire area of said optical curtain; and (b) one or more processing units for determining at least a location of intrusion of said flying object to within said optical curtain by means of determining pixels within said focal plane array that are affected by reflections or scatter due to said intrusion of said flying object.
The invention relates to an interceptor type system for neutralizing a shaped charge threat, which comprises: (a) a detection system for detecting an approach of a shaped charge projectile, for calculating upon such detection its course of approach, and for activating an interceptor to create a flux of intercepting fragments within a destruction corridor; and (b) one or more of said interceptors, each comprising one or more magazines of fragments, each magazine comprises said fragments and an explosive layer which in turn explodes thereby to create said flux of intercepting fragments within said destruction corridor.
An optical system comprising: an anamorphic optical subsystem that includes: an entrance plane, an exit plane, and at least one optical element, in an optical path from said entrance plane to said exit plane, that effects an aspect ratio distortion, by a factor r>1, on light that has a wavelength in a predetermined wavelength interval and that enters said anamorphic optical subsystem via said entrance plane from an infinitely distant point source at any azimuth and at any elevation of up to at least about five degrees from an optical axis of said anamorphic optical subsystem, such that energy of said light within an Airy disk of said light as said light exits said anamorphic optical subsystem via said exit plane, is at least about f(r) of a diffraction limit value of said energy, wherein f(x) is a monotonic function of x such that f(1)=1, f(1)≥- 0.737, f(2)≥0.6 and f(∞)=0.
The present invention relates to electro-optic guided missile systems and, in particular, it concerns systems and methods providing enhanced navigation capabilities based on ego-motion processing of seeker images. The missile system comprising: a missile;a seeker located at a nose portion of said missile, said seeker comprising an electro-optic imaging sensor; and a control arrangement for steering the missile along a flight path to a target, characterized in that the missile system further comprises: a navigation subsystem receiving images from said imaging sensor, said navigation subsystem being configured to: co-process a plurality of said images from said imaging sensor to derive ego-motion of said missile relative to a region viewed by said imaging sensor;derive from said ego-motion a calculated target direction from said missile to a target.
A shutter mechanism for covering a wing's spreading opening formed in an airborne body and a method for covering such opening while implementing the shutter mechanism, wherein the shutter comprises at least one flap assembly, and wherein from the instant that a deployed wing of the airborne body passed and moved over it, it is biased by traction of at least one springy element to an angular motion around an axis, unto a condition where the flap component of the assembly is positioned so that it is substantially conformal to the outline of the outer surface of the fuselage of the airborne body and while it covers the opening through which the wing passed in its motion; and from an instant that the wing returned and connected to the flap component of the assembly, the flap is biased to an angular motion counter the spring, to the state that the wing returns and is relocated on its top surface.
The invention is a method and apparatus for creating mode division multiplexed channels capable of integration into photonic integrated circuits with direct spatial separation at the receiver end, thus removing the need for a DMUX module or at least significantly simplifying it. This is achieved by using a set of actuators that induce controllable mode mixing in a multi- mode fiber (MMF) at the transmitter in such a way that spatially separated channels are achieved at the receiver. As a result, no DMUX is required and failure of a single channel does not cause total communication link failure as occurs in links implemented with MUX/DMUX.
Firing preventing and stoppage apparatus for remotely operated automatic weapon such as installable in RCWS (Remotely Controlled Weapon Station), that comprises a barrier component and an actuator connected to the barrier component, wherein the barrier component is suited to movement through a cartridges ejection port from an automatic weapon, to a movement path of the breech block of the weapon, for preventing in advance or stoppage of runaway firing from it, and outwards from it in a manner that enables firing, an RCWS equipped with such apparatus and a method for preventing and stopping runaway firing of automatic weapons that are mountable in an RCWS and comprises a breech block and a cartridges ejection port that is implemented in such apparatus.
Wing deployment mechanism for deploying a pair of wings from an airborne body, wherein their deployment in motion, each one around an axis, defines the wings' deployment plane relative to the airborne body, and wherein the mechanism is characterized by that it comprises a propelable assembly mounted in the airborne body and suited to a rotational motion around an axis that is substantially orthogonal in its direction to the wings' deployment plane, a pair of arms that are linked, each one, on its one side to the assembly and at distance from the assembly's rotation axis, and on its other side to an end of one of the wings and at a distance from the axis around which the rotational motion of the wing in the wings' deployment plane is enabled, and wherein the link of each one of the arms is performed in a manner that enables angular motion of each of the arms relative to the assembly and to the end of the wing unto which it is linked, and wherein propelling the assembly to rotational motion and actuating a momentum for turning the wing as a result by the arm that is connected to it bring about concurrent rotational motion of the pair of wings in opposing directions and to their deployment on the wings' deployment plane, a method for deploying a pair of wings from an airborne body that is implementable in such mechanism and an airborne body equipped with such mechanism.
The invention is an omni-directional observation system comprised of an inverted multi-faceted pyramidal prism oriented such that each facet reflects an image of a field of view facing it towards the apex of the pyramid. Two discs containing apertures located beneath the apex of the pyramid rotate at the same speed in opposite directions, and an optical arrangement under the disks is arranged to focus light passing through apertures in both disks onto a focal plane array detector. The apertures in the disks and the speed of the rotation are adapted such that apertures in both disks align to allow the image from only one facet at a time to fall on the detector. In one complete revolution of the disks images from all facets fall on the detector; thereby providing a plurality of images that can be combined to form a panoramic view of the surroundings of the system.
In a first aspect the invention is a solid state disk laser comprising a thin solid state disk and an output coupler, wherein the thin solid state disk is located inside the cavities of one or more semiconductor disc lasers formed by pairs of optically pumped semiconductor disk structures. In a second aspect the present invention is a system comprising a solid state disk laser comprised of a thin solid state disk and an output coupler; at least one semiconductor disk laser comprised of a pair of semiconductor disk structures! and optical pumping sources for the semiconductor disk laser. In a third aspect the invention is a method of pumping a solid state disk laser by means of the laser energy generated by one or more semiconductor disc lasers, each of which is formed from a pair of optically pumped semiconductor disk structures.
The invention relates to an improved Inertial Navigation System (INS), which comprises: (a) an INS unit which comprises: (a.1) an IMU which in turn comprises a set of at least three gyros and at least three accelerometers, all mounted on a rotatable stage; and (a.2) an INS algorithm for measuring the behavior of said gyros and said accelerometers during a mission, and calculating a navigation solution based on said measurements; and (b) a north finding determination unit, which comprises: (b.1) one or more from said IMU gyros and one or more from said IMU accelerometers; and (b.2) a north finding algorithm which utilizes measurements from said one or more north finding gyros and one or more north finding accelerometers during an initial conditions stationary state in which the stage is positioned in at least two separate stationary orientations, said north finding algorithm determines a north finding solution which is provided to the INS unit for initializing its said INS algorithm.
G01C 19/36 - Rotary gyroscopes for indicating a direction in the horizontal plane, e.g. directional gyroscopes with north-seeking action by magnetic means, e.g. gyromagnetic compasses
A projectile (bomb or missile) has a housing for travelling stably through the air and a gun barrel deployed within the housing. A shell, deployed within the gun barrel, contains an explosive charge. A quantity of black powder or other low-explosive is deployed for firing the shell from the gun barrel.
F42B 12/62 - Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile
Belt/Metallic Link Chain Loaded Ammunition Feeder in a Remote Controlled Weapon Station (RCWS) that comprises feeding mechanism for routing chained ammunition from ammunition reservoir means towards the weapon's bullets entrance opening wherein said feeding mechanism comprises - a first chute assembly for routing chained ammunition from said ammunition reservoir means towards the region of the RCWS's elevating/lowering axis, wherein said first chute assembly is mounted on the RCWS's rotatable turret assembly; and a second chute assembly for continuing routing said chained ammunition from the region of said elevating/lowering axis towards the entry opening of the bullets entrance of the weapon, wherein the second chute is mounted the RCWS's mounting bracket; and wherein the chained ammunition traversing over said elevating/lowering axis region in its passing from the first chute assembly to the second chute assembly happens when said ammunition is directed in an orientation that is at least substantially suited to the direction of said elevating/lowering axis; and at the time that said mounting bracket assembly is propelled to elevating/lowering motion around said elevating/lowering axis, the first chute assembly remains static and the second chute assembly is dynamic and propelled together with said mounting bracket assembly around said elevating/lowering axis.
A Remote Controlled Weapon Station is provided that comprises a weapon mounting bracket that is remotely adjustable in elevating/lowering and a rotatable turret assembly adapted to be mounted on vehicles, remotely adjustable in rotation, and wherein the weapon mounting bracket is pivotally mounted on it, and the Remote Controlled Weapon Station is converted into a remote controlled Non Lethal weapon station by that at least one non lethal means is installed in it, chosen from a group consisting of – a multi barreled means for firing grenades; multi-barrels launcher means for pyrotechnically firing plurality of charges; acoustic means for producing tones; illuminating means; observation means and means for providing sniper firing capabilities of small caliber kinetic bullet.
F42B 5/145 - Cartridges, i.e. cases with propellant charge and missile for dispensing gases, vapours, powders, particles or chemically-reactive substances
The invention relates to adaptive optics techniques applied to alter the modal structure of light propagating in an optical fiber. In particular the invention relates to altering the modal structure in a multimode beam propagating in a multimode fiber by lowering the number of higher modes. The method comprises combining a wavefront sensor and/or a power sensor with a phase control actuator and actuator control algorithms, to alter the phase structure of the beam thereby to eliminate higher modes. The corrected beam can be then effectively coupled into a smaller diameter fiber with minimum loss of energy and concentrated to smaller spot sizes limited by diffraction.
A seeker for detecting reflections of light emitted by a laser, including an image sensor, circuitry for receiving, from the image sensor, electronic signals that represent a scene that includes the reflections; and a photodetector. The circuitry is configured to interrogate the image sensor, in order to receive the electronic signals that represent the scene, in response to electronic signals, from the photodetector, that indicate reception of the reflections by the photodetector.
The invention relates to a method of performing surveillance of an object moving on the ground, which comprises: a) providing two independent image-acquisition devices, wherein at least one of said devices is capable of acquiring high-resolution images, and the second of said devices is capable of acquiring low-resolution images; b) independently acquiring low- resolution and high-resolution images of the same scanned area; c) identifying an object the movement of which it is desired to follow, using the images; d) locating the object identified in at least one image; and e) following the movements of the identified object through a string of low- resolution images.
H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
G03B 37/02 - Panoramic or wide-screen photographyPhotographing extended surfaces, e.g. for surveyingPhotographing internal surfaces, e.g. of pipe with scanning movement of lens or camera
The present invention is directed to a method for reducing the guard time of a Mobile ad-hoc networking (MANET) system during reception, according to which a transceiver architecture that is provided at each node, includes a combination of a hopping transmitter and a plurality of hopping narrowband independent receivers that are capable of receiving and processing the entire operational band assigned to the system, at once, and that include channel frequencies, dynamically selected within a wide operating bandwidth. Alternatively, the transceiver architecture includes a non-hopping wideband receiver capable of receiving and processing the entire operational band assigned to the system, at once. Several channels, arbitrarily spread over a frequency band assigned to the system are simultaneously received, while keeping the architecture of the MANET system. The transmission hopping patterns are determined to use the least possible number of frequencies. For each transmitting node, time slots in which a counterpart receiver at each remaining active node is not transmitting and a frequency channel in which no other active node transmits are found. The transmission frequency is then determined and if no other node had chosen the same time slot, and if the transceiver is not transmitting in the slot, the transmission is received, while allowing relay nodes to transmit simultaneously, using different channels. Whenever a plurality of narrowband independent receivers is used for reception, guard time is allocated to time slots on demand. Otherwise, no guard time is allocated to the time slots.
combined imager and rangefinder includes an imaging sensor and an illuminator. The sensor acquires images of objects in a FOV. The illuminator directs a beam of light via the FOV. In a first mode, the sensor acquires full images of the whole FOV. In a second mode, the sensor acquires partial images, of only part of the FOV, that include a reflection of the light from one of the objects. The range to the object is determined from the location of the reflection in the partial images. Successive range measurements are used to determine whether a collision with the object is imminent.
A mobile communication system which consists of a plurality of MANETs and nodes, which comprises a transceiver at each node. Each transceiver is a combination of a hopping transmitter operating according to a predetermined hopping sequence and rate and a wideband reference receiver, that can simultaneously receive at once, the whole operating band assigned to the system. Each transceiver further includes a circuitry for reallocating simultaneously receiving channels, dynamically spread over a wideband frequency range and circuitry for determining transmission hopping patterns to use the least possible number of frequencies according to the active population status of nodes that belong to the plurality of MANETs. This circuitry is also used for adapting the transmission scheme of the alien transceivers by finding time slots, in which a counterpart receiver at each remaining active node is not transmitting and a frequency channel, in which no other active node, neighboring the counterpart receiver transmits, while determining proper transmission frequency for each transmitting node.
A dual field of view (FOV) image is generated as a combination of a small footprint image and large footprint image, where the large footprint image is generated based on rendering to the current viewpoint at least a first image captured relatively farther away from a target so as to appear as a continuation of a small footprint image which is relatively closer to the target. Preferably, both the first image and the small footprint image are captured with the same fixed narrow field of view (NFOV) imaging device. The system is able to operate in real time, using a variety of image capture devices, and provides the benefits of both NFOV and wide FOV (WFOV) without limitations of conventional techniques, including operation at a longer range from a target, with higher resolution, while innovative processing of the captured images provides orientation information via a dual FOV image.
An acceleration responsive switching device formed as a micro- electromechanical systems (MEMS) device in which components are deposited and etched on and or above a substrate, comprising: a proof mass module comprising: at least one proof mass made of metal; at least three resilient suspending members made of metal, for suspending the proof mass; a lingule made of metal, connected to the proof mass; at least two contact pads to which at least one of the three resilient suspending members is permanently attached thereby allowing current to flow from the at least two pads to the proof mass module; and at least one additional contact pad, which is set against the lingule.
A controlled pyrotechnic train implementing a MEMS chip portion for use as an igniter of a charge. The train includes the following: an initiator; a blocker for blocking the entire train; a deflector of the blocker, and an output charge. In some embodiments the initiator is electromagnetic energy, in which case the blocker may be any appliance used in optics.
F42C 15/34 - Arming-means in fuzesSafety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by a blocking-member in the pyrotechnic or explosive train between primer and main charge
F42C 13/02 - Proximity fuzesFuzes for remote detonation operated by intensity of light or similar radiation
The invention is an energetic unit comprised of: a container comprised of a base, an upper part, and a cover; a substrate located in the base and comprised of a thin, ribbon-like strip of flexible material that provides electrical contact to external firing circuits; a semiconductor bridge (SCB) chip electrically and physically attached to the substrate; and one or more layers of energetic material which are packed into the upper part of the container between the SCB chip and the cover.
A vehicle protection system for vehicle windows against RPGs, comprising an RPG countenneasure mechanism (an active disruption mechanism that propels an object at an incoming RPG or a static structure) that results in a disabled RPG that cannot explode as a liner shaped charge warhead but can still explode, and a set of transparent panels attached to the vehicle, the panels large enough to cover the windows of the vehicle, the panels of the set of transparent panels inclined relative to an imaginary vertical plane nonnal to a surface that the vehicle rests on by an angle that is between 20,and 40 degrees, the panels made of rigid material, such as PMMA. for absorbing an impact from the disabled RPG so that it never reaches the threshold deceleration needed to explode.
A system and method for sampling multi- spectral images of a dynamically changing scene facilitates independently dynamically adjusting the exposure of a photosensor based on a first group of sequences of images, while disregarding a second group of sequences of images, where each sequence of images is of a distinct color of light. In addition, the current description presents an innovative technique for constructing a multi-spectral image of a scene based on individually contrast-enhanced images of the scene. Applications include video photography and high quality true color stills camera with separate sensor arrays for each color channel. The control of the present embodiment can be used to produce photographs with truer color than conventional techniques.
A turret assembly without deck penetration for minimizing exposure of combatants to enemy forces when accessing above deck equipment comprises a base plate on top of which is mounted at least one firable and remotely operable combatant interfaceable implement, the base plate being rotatable about a substantially vertical axis and supported for rotation by bearing means mounted within a deck of a military facility; a hatch displaceably connected to the base plate, for normally covering a hatchway formed in said base plate and for exposing said hatchway when displaced; and a rotatable disc of a slip ring unit carried by the hatch, by which electricity for operating equipment mounted on top of the deck and for initiating control signals is transmitted to the equipment.
patents
