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    METHOD FOR PROCESSING A GNSS SIGNAL WITH A VIEW TO ATTENUATING AT LEAST ONE JAMMING SIGNAL
    2.
    发明申请
    METHOD FOR PROCESSING A GNSS SIGNAL WITH A VIEW TO ATTENUATING AT LEAST ONE JAMMING SIGNAL 有权

    公开(公告)号：US20240413923A1

    公开(公告)日：2024-12-12

    申请号：US18698143

    申请日：2022-10-04

    Applicant: Safran Electronics & Defense

    Inventor： Alain Michel CHIODINI ,  Arnaud LILBERT

    IPC: H04K3/00

    Abstract: The invention relates to a method for processing a radio navigation signal originating from a satellite (SAT) and received by a radio navigation receiver comprising a plurality of receive antennas, each antenna being configured to receive signals originating from a satellite of interest (SAT), from at least one jammer and possibly from at least one other satellite (SAT′) in given directions, the method comprising the following steps: detecting (E1), on the basis of the signal received by each antenna, at least one direction of a jamming signal; attenuating (E2, E2′) the detected jamming signal in the detected direction; in which method detecting (E1) the direction of a jamming signal is based on determining a covariance matrix dependent on the signals received by each antenna given by (i), where Z is a matrix of size N×M in which each column corresponds to the signal received by each antenna, N denoting the number of samples acquired during a fixed period ΔT and M being the number of antennas.

    Radio frequency jamming or interference detection and mitigation in an electronic monitoring system
    3.
    发明授权
    Radio frequency jamming or interference detection and mitigation in an electronic monitoring system 有权

    公开(公告)号：US12166572B2

    公开(公告)日：2024-12-10

    申请号：US17834101

    申请日：2022-06-07

    Applicant: Arlo Technologies, Inc.

    Inventor： Matthew McRae

    IPC: H04K3/00 ,  H04W28/02 ,  H04W72/0453 ,  H04W76/15

    Abstract: An electronic monitoring system and method are provided. The electronic monitoring system monitors communication of data between a device primary radio of a monitoring device and a hub primary radio through a primary communication path. Communication of the data is transferred to a secondary communication path between a device secondary radio of the monitoring device and a hub secondary radio in response to the detection of a disruption on the primary communication path resulting from interference or jamming of communications over the primary communication path. The primary and secondary radios operate a different frequencies.

    ANTI-JAMMING USING DUAL CHANNEL MULTI-FREQUENCY NULL-STEERING APPROACH
    4.
    发明申请
    ANTI-JAMMING USING DUAL CHANNEL MULTI-FREQUENCY NULL-STEERING APPROACH 有权

    公开(公告)号：US20240396662A1

    公开(公告)日：2024-11-28

    申请号：US18200652

    申请日：2023-05-23

    Applicant: Infinidome Ltd.

    Inventor： Moshe KAPLAN ,  Alexander Avraham KATZ

    IPC: H04K3/00

    Abstract: An anti-jamming circuit for null-steering jamming Radio-Frequency (RF) signals, comprising (1) an input circuit for receiving RF signals from multiple distinct antenna elements, and producing a plurality of signal groups each comprising a respective pair of filtered signals received from a respective pair of antenna elements each mapping them in one of the plurality of frequency bands, (2) a feedback circuit for adjusting the amplitude and/or the phase of the filtered signals of each signal group according to comparison between its pair of filtered signals until a difference between their amplitudes is minimized and their phases are opposite, aggregating the pair of adjusted signals of each signal group to produce a aggregated group signals, and aggregating the plurality of aggregated group signals to produce an overall aggregated signal, and (3) an output circuit for outputting the aggregated signal to a receiver adapted to extract data from the aggregated signal.

    DETACHABLE DRONE HIJACKER AND/OR JAMMER METHOD, APPARATUS AND SYSTEM
    5.
    发明申请
    DETACHABLE DRONE HIJACKER AND/OR JAMMER METHOD, APPARATUS AND SYSTEM 有权

    公开(公告)号：US20240380511A1

    公开(公告)日：2024-11-14

    申请号：US18114555

    申请日：2023-02-27

    Applicant: THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF THE NAVY

    Inventor： Christian Michael Thiessen ,  Britta Hale

    IPC: H04K3/00

    Abstract: A method, apparatus and system for countering unmanned aerial systems (UAS). More specifically, this disclosure, and the exemplary embodiments described herein, provide portable detachable/attachable drone hijackers/jammers and systems meant to act as a stand-in electronic warfare device that can be configured and attached to another unmanned device. According to an exemplary embodiment, the disclosed method, apparatus and system targets adversarial UAVs by leveraging their protocol vulnerabilities and attacking their communication links between a target and its ground control station (GCS), or other communication links to other devices (such as GNSS and other UAVs). Its detachable nature gives the Detachable Drone Hijacker a stand-in capability where it can exist amongst its targets and deliver air-to-air attacks.

    WAVEFORM DETECTION INTERFACE
    6.
    发明申请
    WAVEFORM DETECTION INTERFACE 有权

    公开(公告)号：US20240380510A1

    公开(公告)日：2024-11-14

    申请号：US18689697

    申请日：2022-08-26

    Applicant: Telefonaktiebolaget LM Ericsson (publ)

    Inventor： Christopher RICHARDS

    IPC: H04K3/00

    Abstract: A method, system and apparatus are disclosed for a waveform detection interface. In one embodiment, a waveform detection interface includes processing circuitry configured to exchange management plane information between a application and the waveform detector, the management plane information including capability information related to waveform detector capabilities. The processing circuitry also exchanges control plane information between the application and the waveform detector, the control plane information including configuration information related to a configuration of the waveform detector. The processing circuitry also exchanges user plane information between the application and the waveform detector.

    RF CODE-DOMAIN SPREAD SPECTRUM CORRELATION FOR INTERFERENCE-TOLERATED COMMUNICATION AND RADAR TRANSCEIVERS
    10.
    发明公开
    RF CODE-DOMAIN SPREAD SPECTRUM CORRELATION FOR INTERFERENCE-TOLERATED COMMUNICATION AND RADAR TRANSCEIVERS 审中-公开

    公开(公告)号：US20240260074A1

    公开(公告)日：2024-08-01

    申请号：US18230256

    申请日：2023-08-04

    Applicant: Digital Analog Integration, Inc.

    Inventor： Fa Dai ,  John David Irwin

    IPC: H04W72/541 ,  H04K3/00

    CPC classification number: H04W72/541 ,  H04K3/20

    Abstract: Code-domain spread spectrum (CDSS) correlation embodiments for wireless and radar transceivers with the dual purposes of in-band jammer rejection and transmitter-to-receiver self-interference suppression. The encode/decode schemes may be employed at different locations on the TRx paths such as TRx front-end and/or in the baseband, for different TR transceiver architectures such as I/Q TRx, MIMO/phase array TRx and polar TRx. The encoder may be placed in the baseband digital unit and the decoder may be placed in front-of-the LNA in the RF domain for easy encoder implementation in the digital domain while protecting the receiver path from interferences. Group delay filters and/or tunable time delays can be employed to compensate for a signal path delay in a radar TRx. Signals coded with a correlated code sequence and synchronized with the encoder in the transmitter may be decoded and restored at the receiver while the in-band jammers and self-interference can be suppressed.

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