DETERMINATION OF CARDINAL DIRECTION
    1.
    发明公开

    公开(公告)号:US20240288565A1

    公开(公告)日:2024-08-29

    申请号:US18658020

    申请日:2024-05-08

    Inventor: Josef STEINMETZ

    CPC classification number: G01S13/42 G01S13/867 G01S13/88

    Abstract: A method including:



    detecting that an aerial vehicle is located at a reference axis of a sensor, or at a predetermined or calculated angle of the reference axis of the sensor, the method further comprising, by a processor and memory circuitry;
    obtaining a given position Paarin of the aerial vehicle upon its detection at the reference axis of the sensor, or upon its detection at the predetermined or calculated angle of the reference axis of the sensor, and position Pacmor of the sensor, and
    determining, based at least on Paeria and Psensor, a cardinal direction with respect to the reference axis.

    SYSTEMS AND METHODS FOR DETERMINING POSITION AND/OR DIRECTION OF AN EMITTER

    公开(公告)号:US20230358842A1

    公开(公告)日:2023-11-09

    申请号:US18246208

    申请日:2021-08-30

    Inventor: Iftah LIPKIN

    CPC classification number: G01S3/46 G01S3/043 H01Q1/27 G01S5/06

    Abstract: A system comprises an array of antennas suitable for intercepting electromagnetic waves, one or more sensors, wherein said one or more sensors are configured to provide data informative of a position of each of a plurality of the antennas over time, wherein each of a plurality of the antennas is linked to a non-rigid portion, thereby undergoing displacement upon displacement of the non-rigid portion, wherein data informative of the electromagnetic waves intercepted by the array and data informative of the position of the plurality of antennas over time are usable for determining data informative of at least one of a position and a direction of at least one emitter of the electromagnetic waves.

    SIGNAL DETECTION BY MEANS OF SUPPLEMENTAL INFORMATION

    公开(公告)号:US20230179328A1

    公开(公告)日:2023-06-08

    申请号:US18063832

    申请日:2022-12-09

    CPC classification number: H04L1/0036 H04W40/22 H04W84/18 H04W88/04 G01S5/02

    Abstract: A method of communicating information from a sensor concerning a received signal, comprising: responsive to receiving by at least one detecting sensor, during a defined time interval, data indicative of an entire data of a frequency band received by it during the defined time interval, comprising at least one signal emitted at least one emitter, and to detecting of the emitted signal by the at least one detecting sensor, sending from the sensor assistance information corresponding to the detected emitted signal during the defined time interval, to at least one non-detecting sensor. This information can be utilized by the non-detecting sensor to perform an action with respect to data indicative of an entire data of the frequency band received by the non-detecting sensor during a corresponding defined time interval, the action corresponding to at least one emitted signal received by the non-detecting sensor during the corresponding defined time interval.

    DETECTION OF WEAK SIGNALS OF UNKNOWN PARAMETERS

    公开(公告)号:US20230057530A1

    公开(公告)日:2023-02-23

    申请号:US17760052

    申请日:2021-02-01

    Abstract: An antenna system for at least one of Elint and Sigint, configured to detect weak electro-magnetic signals, comprises an antenna and a feed manifold, which comprises a plurality of feeds located on a focal surface of the antenna. The antenna is configured to function as a two-dimensional focusing element, having spherical symmetry. The system is configured such that a planar wave-front associated with a electro-magnetic signal, that is impinging on the antenna, is focused by the antenna to a feed, situated at a distance from the antenna corresponding to a focal distance of the antenna along a propagation vector of the wave-front. The spatial field of view of the antenna system is based on a number of feeds and the spacing between feeds. This produces, for each feed, a respective high-gain beam, with direction along the line connecting the center of the spherical symmetry and the feed.

    SYSTEM AND METHOD OF CALIBRATING A RADAR ROTATABLE ANTENNA SYSTEM

    公开(公告)号:US20220365174A1

    公开(公告)日:2022-11-17

    申请号:US17292607

    申请日:2019-11-18

    Inventor: Michael Mihlin

    Abstract: A calibration utilizes reference data indicative of a position of a target element relative to a reference location, of a position of a reference point on a rotatable support relative to the reference location, orientation data indicative of at least one angular position of the rotatable support, and antenna measurement data indicative of electromagnetic echo signals received by a radar antenna from the target element. A measured position of the target element relative to the radar antenna is determined based on at least a portion of the antenna measurement data. A reference position of the target element relative to the radar antenna is determined based on the reference data and on at least a portion of the orientation data. At least one bias value or function associated with the orientation data and/or the antenna measurement data is determined based on a deviation between the determined measured position and reference position.

    SYSTEM AND METHOD FOR CHARACTERIZING PROPERTIES OF EM SIGNALS

    公开(公告)号:US20220128611A1

    公开(公告)日:2022-04-28

    申请号:US17423033

    申请日:2020-01-14

    Abstract: A method and system are presented for determining properties of an electromagnetic waveform. The method comprises: providing measured parametric EM field data indicative of measured vector components of electric and magnetic fields of an EM waveform measured in at least one instance of time; providing reference data indicative of a plurality of reference data sets, each data set comprising: a reference steering vector parameters indicative of a certain respective direction of arrival (DOA), and a corresponding parametric EM field reference data including reference vector components of an electric and magnetic field pertaining to a wavefront propagating with the DOA of the corresponding reference steering vector parameters; determining a matching score between the measured parametric EM field data and the parametric EM field reference data of one or more of the reference data sets; and in case the matching score of a certain reference data set complies with a certain threshold condition, determining that said measured parametric EM field data corresponds to said EM waveform having a single EM wavefront thereby enabling to discriminate between measured EM waveforms having a single wavefront and measured EM waveforms having multiple wavefronts.

    System which supports both TDD and FDD, with signal separation

    公开(公告)号:US11283511B2

    公开(公告)日:2022-03-22

    申请号:US16830998

    申请日:2020-03-26

    Inventor: Adi Schwartz

    Abstract: An RF communication system supporting both TDD and FDD and including an FDD duplexer coupled to an antenna; a first pair of FDD/TDD switches each coupled to the duplexer and to a Tx/Rx switch via a sub-band switch; and a second pair of FDD/TDD switches coupled to the Tx/Rx switch including a first FDD/TDD switch coupled to a baseband processor via an amplifier and down converter and a second FDD/TDD switch coupled to a baseband processor via an amplifier and up converter.

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