METHOD AND APPARATUS FOR GENERATING DECEPTION TARGET INFORMATION FOR DECEPTION JAMMING OF PASSIVE RADAR

    公开(公告)号:US20230400550A1

    公开(公告)日:2023-12-14

    申请号:US18050410

    申请日:2022-10-27

    IPC分类号: G01S7/38 G01S7/40

    CPC分类号: G01S7/38 G01S7/40

    摘要: A method for generating deception target information is proposed. The method may include setting third transmission sources pre-selected based on movement path of a jammer as jamming channels, setting a passive radar reference position according to presence or reliability of prior information on position of the passive radar. The method may also include grouping set jamming channels into groups according to operating environment and purpose and analyzing a deception target settable area based on positions of the third transmission sources, the passive radar reference position, and a movement path of the actual target. The method may further include setting a deception target movement path and deriving the deception target information based on the passive radar reference position, the positions of the third transmission sources, the movement path, and a movement path of a virtual deception target for each deception target movement path.

    ACTIVE CHAFF
    5.
    发明公开
    ACTIVE CHAFF 审中-公开

    公开(公告)号:US20230335912A1

    公开(公告)日:2023-10-19

    申请号:US18077684

    申请日:2022-12-08

    发明人: Larry Hurzon

    摘要: A chaff electronic countermeasure device that includes an antenna element positioned on a substrate and in electrical communication with an integrated circuit. The conductive antenna element includes a conductive composition of a conductive polymer and graphene sheets. The device absorbs from a radar source a first radio frequency having a first amplitude. In response to absorbing the first radio frequency, the device reradiates at least a portion of a second radio frequency having a second amplitude toward the radar source, which results in an increased radar cross section of the device as perceived by the radar source. The second amplitude is higher than the first amplitude. The device is configured to be dispersed from a mobile platform. The device is configured to reradiate at least a second radio frequency toward the radar source, thereby resulting in an increased radar cross section of the device as perceived by the radar source

    Method for transmitting multibeam steering jamming signal, and transmitting system for implementing method

    公开(公告)号:US11555885B2

    公开(公告)日:2023-01-17

    申请号:US16966434

    申请日:2019-07-10

    IPC分类号: G01S7/38

    摘要: An embodiment of the present invention is a method of transmitting a multibeam jamming signal of an array antenna and including: a signal receiving operation of receiving a radar signal from a plurality of radars; a signal analysis operation of analyzing the received radar signal and identifying an angle and frequency of the signal; a control phase value calculating operation of calculating a control phase value of each array path of the array antenna for each of the identified angles; and a multibeam jamming signal transmission operation of calculating a multibeam jamming signal based on the calculated control phase value and transmitting the multibeam jamming signal for each identified frequency.

    DETERRENT FOR UNMANNED AERIAL SYSTEMS

    公开(公告)号:US20210302533A1

    公开(公告)日:2021-09-30

    申请号:US17214413

    申请日:2021-03-26

    摘要: A system for providing integrated detection and deterrence against an unmanned vehicle including but not limited to aerial technology unmanned systems using a detection element, a tracking element, an identification element and an interdiction or deterrent element. Elements contain sensors that observe real time quantifiable data regarding the object of interest to create an assessment of risk or threat to a protected area of interest. This assessment may be based e.g., on data mining of internal and external data sources. The deterrent element selects from a variable menu of possible deterrent actions. Though designed for autonomous action, a Human in the Loop may override the automated system solutions.

    Method for jamming synthetic aperture radars and associated device

    公开(公告)号:US10852391B2

    公开(公告)日:2020-12-01

    申请号:US16074688

    申请日:2017-01-30

    申请人: THALES

    摘要: A method for jamming airborne SAR radar implemented by a jamming device includes at least two cooperating units surrounding an area on the ground to be protected, at least two units providing a radar-detection function and at least one unit providing a radar-jamming function, each unit being interlinked by a two-way data link and being synchronized by a common clock, the method comprises a step of identifying the signals received and whether the received signals correspond to SAR signals; a step of characterizing the received SAR signal over a short duration; a step of computing a filter adapted to the signal; a step of carrying out pulse compression of the signal; a step of iteratively periodically characterizing the signal over a long duration; a step of computing the jamming signals to be transmitted; a step of transmitting the jamming signals.