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公开(公告)号：US20220342110A1
公开(公告)日：2022-10-27
申请号：US17667869
申请日：2022-02-09
Applicant: ELBIT SYSTEMS LAND AND C4I LTD.
Inventor： Aner LEV , Shai Mordechai BUTZIN , Barak ALFASSI , Alon Refael HEIMER
Abstract: An optical seismic surveying system including, a multibeam laser source including a plurality of laser-sources, a Diffractive-Optical-Element (DOE), an imager and a processor. The laser-sources direct respective laser-beams toward a single common focal point. The DOE is located at a single common focal point and configured to split each laser-beam into a plurality of laser-beams, toward an instantaneous area of interest. The laser-beams impinging on the instantaneous area of interest produce a laser spot assemblage including a plurality of laser spots. The imager acquires a plurality of defocused images of speckle patterns produced by diffused reflections of the laser spots. The speckle pattern correspond to a respective laser spot and thus to a respective sensing point in the instantaneous area of interest. The processor determines a relative displacement between corresponding speckle patterns in sequential pairs of images and determines a respective time-signal for each sensing point representing vibrations thereat.
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公开(公告)号：US20220329284A1
公开(公告)日：2022-10-13
申请号：US17735766
申请日：2022-05-03
Applicant: ELBIT SYSTEMS LAND AND C4I LTD.
Inventor： Yeheskel CHECHIK , Jacob VINTOR
Abstract: A method and circuit for providing adaptive suppression of signal crosstalk appearing on a common return wire in a signal cable connected to a device. The method steps comprise connecting an adjustable negative resistance circuit between the common wire terminal and a common point at the device; determining an auxiliary current (Iaux) such that is flowing through at least one of the cable wires and returns through the common wire; sensing the voltage between selected at least one of the cable wire terminals at the device port and the common point, while ensuring that this level is substantially affected by Iaux; measuring a level of the sensed voltage according to a predefined level measurement procedure; and adjusting the negative resistance so as to nullify said voltage level, thereby effectively cancelling the common wire ohmic resistance.
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公开(公告)号：US11371878B2
公开(公告)日：2022-06-28
申请号：US16326951
申请日：2017-08-28
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Ilya Leizerson , Dan Nussinson
Abstract: Systems and methods are provided for vibrations detection in a scene. Systems comprise at least one coherent light source configured to illuminate the scene, an optical unit configured to focus scattered light from the scene onto a pixelated detector, the detector configured to provide pixel intensity signals, and a processing unit configured to analyze the pixel intensity signals over the pixels of the detector to derive a vibration spectrum of elements in the scene that correspond to the pixels. The signal modulation at each pixel may be used to indicate the vibrations of the scene element(s) that corresponds to the pixel(s). Vibration information concerning the scene may be used to direct other methods of vibration measurements, such as speckle interferometry, according to derived vibration images of the scene.
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公开(公告)号：US20220085711A1
公开(公告)日：2022-03-17
申请号：US17413575
申请日：2019-10-03
Applicant: ELBIT SYSTEMS LAND AND C4I LTD.
Inventor： Neta BEN YISHAY , Avi LAX
Abstract: A method for compensating for power supply ripple that is present in a supply voltage that is generated by a switched-mode power supply, the method comprising: calculating an estimated power supply ripple that is expected to be generated by the power supply; generating a digital ripple compensation signal, based on the estimated power supply ripple; combining a digital baseband (BB) signal and the digital ripple compensation signal to generate a digital modified BB signal; converting the digital modified BB signal to an analog radio frequency (RF) signal; and amplifying the analog RF signal, based on the supply voltage, to generate a RF transmission signal.
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公开(公告)号：US11187648B2
公开(公告)日：2021-11-30
申请号：US17137393
申请日：2020-12-30
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Ilya Leizerson , Adi Yosef Mordechai Sussholz , David Stavitsky
Abstract: A system and a method for sensing an object using two-stage photo-acoustic excitation are provided herein. The method may include: scanning the object at a first resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple first regions on the object to yield multiple first outputs; determining, based on the multiple first outputs, at least one first region of the multiple first regions that includes at least one zone and a specific depth of the at least one zone below a surface of the object; scanning the first region that includes the at least one zone at a second resolution by alternately and repeatedly photo-acoustically exciting and sensing each of multiple second regions in the at least one first region thereof to yield multiple second outputs; and determining, based on at least one of the multiple second outputs, specified parameters of the at least one zone.
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Patent Agency Ranking
公开(公告)号：US10469106B2
公开(公告)日：2019-11-05
申请号：US15781743
申请日：2016-11-17
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Boris Sorokopud , Yehuda Eder , Yonatan Manor
Abstract: Multi-channel communication devices and methods are provided, which employ a filter bank, connected between antenna(s) and wideband converter(s), that comprises many narrowband surface acoustic wave (SAW) filters having respective distinct frequency bands within a bandwidth of the wideband converter(s). For example, devices may be configured as multi-channel receivers with SAW filters replacing current heterodyne circuitry and achieving effective separation of reception channel and effective attenuation of adjacent blocking signals in a compact device. In other examples, devices may be configured as multi-channel transmitters and/or transceivers, possibly having a variable number of channels, to realize compact multi-channel radio.
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公开(公告)号：US10204454B2
公开(公告)日：2019-02-12
申请号：US15314223
申请日：2015-05-28
Applicant: ELBIT SYSTEMS LAND AND C4I LTD.
Inventor： Benny Goldman , Eli Haham
Abstract: Image georegistration method and system. An imaging sensor acquires a sensor-image of a scene. Imaging parameters of the acquired sensor-image are obtained, the imaging parameters including at least the detected 3D position and orientation of the imaging sensor when acquiring the sensor-image, as detected using a location measurement unit. A model-image of the scene is generated from a textured 3D geographic model, the model-image representing a texture-based 2D image of the scene as acquired in the 3D model using the imaging parameters. The sensor-image and the model-image are compared and the discrepancies between them determined. An updated 3D position and orientation of the imaging sensor is determined in accordance with the discrepancies. The updated position and orientation may be used to display supplementary content overlaid on the sensor-image in relation to a selected location on the sensor-image, or for determining the geographic location coordinates of a scene element.
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公开(公告)号：US20180367167A1
公开(公告)日：2018-12-20
申请号：US15781743
申请日：2016-11-17
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Boris SOROKOPUD , Yehuda EDER , Yonatan MANOR
CPC classification number: H04B1/005 , H03H9/6406 , H03H9/72
Abstract: Multi-channel communication devices and methods are provided, which employ a filter bank, connected between antenna(s) and wideband converter(s), that comprises many narrowband surface acoustic wave (SAW) filters having respective distinct frequency bands within a bandwidth of the wideband converter(s). For example, devices may be configured as multi-channel receivers with SAW filters replacing current heterodyne circuitry and achieving effective separation of reception channel and effective attenuation of adjacent blocking signals in a compact device. In other examples, devices may be configured as multi-channel transmitters and/or transceivers, possibly having a variable number of channels, to realize compact multi-channel radio.
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49.发明授权公开(公告)号：US10096839B2
公开(公告)日：2018-10-09
申请号：US14204057
申请日：2014-03-11
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Dario Dekel , Shimshon Gottesfeld
IPC: H01M8/10 , H01M4/88 , H01M8/1004 , H01M8/1072 , H01M8/04492
Abstract: In an AMFC, in the formation of a CCM, the anode catalyst layer is selectively cross-linked while the cathode catalyst layer is not cross-linked. This has been found to provide structural stabilization of the CCM without loss of initial power value for a CCM without cross-linking.
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公开(公告)号：US20180239367A1
公开(公告)日：2018-08-23
申请号：US15751097
申请日：2016-11-28
Applicant: Elbit Systems Land and C4I Ltd.
Inventor： Yair Kahn
CPC classification number: G05D1/101 , B64C39/024 , B64C2201/027 , B64C2201/14 , B64C2201/145 , G01S5/0054 , G01S13/06 , G01S15/06 , G01S19/03 , G01S19/11 , G01S19/48 , G01S19/49 , G08G5/0069
Abstract: A drone control system for controlling a drone which includes an onboard-flight-system previously configured to receive navigational-data in a format compliant with a standard navigational data transmission protocol. The system includes a remote-sensor and an interface. The remote sensor is located remotely from the drone and determines the position of the drone relative to the remote-sensor. The interface, coupled with the remote-sensor, produces a pseudo GPS signal indicating the position of the drone and to provide the pseudo GPS signal to an onboard-flight-system of the drone. The format of the pseudo GPS signal is fully compliant with the standard navigational data transmission protocol employed by the onboard-flight-system. The onboard-flight-system is receives inertial tracking data from an onboard inertial-measuring-unit and the pseudo GPS signal, and tracks the position of the drone by merging the inertial tracking data and the pseudo GPS signal and navigates the drone accordingly.
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