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    Realtime electronic countermeasure assessment
    622.
    发明授权
    Realtime electronic countermeasure assessment 有权

    公开(公告)号：US12038530B2

    公开(公告)日：2024-07-16

    申请号：US16953579

    申请日：2020-11-20

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Scott A Kuzdeba ,  Brandon P. Hombs ,  Daniel Massar

    IPC: G01S7/36 ,  G01S7/02

    CPC classification number: G01S7/36 ,  G01S7/021

    Abstract: A method of assessing the effectiveness of an electronic countermeasure (ECM) applied against an unknown, ambiguous, or unresponsive radar threat includes monitoring changes in a radar-associated factor while applying the ECM and determining if the ECM is disrupting the hostile radar. The radar-associated factor can be a weapon that is controlled by the radar threat, and assessing the ECM can include determining whether the weapon is misdirected due to applying the ECM. Or the radar-associated factor can be a feature of an RF waveform emitted by the radar threat, and assessing the ECM can include determining if the feature is changed due to applying the ECM. Continuous changes in the feature can indicate unsuccessful attempts to mitigate the ECM. Return of the feature to a pre-threat state can indicate disruption of the radar. The ECM can be selected from a library of countermeasures pre-verified as effective against known threats.

    RAPID REPLACEMENT CONTROL FIN FOR AN UNDERWATER VEHICLE
    623.
    发明公开
    RAPID REPLACEMENT CONTROL FIN FOR AN UNDERWATER VEHICLE 审中-公开

    公开(公告)号：US20240217638A1

    公开(公告)日：2024-07-04

    申请号：US18149828

    申请日：2023-01-04

    Applicant: BAE Systems Information and Electronic Systems Integration Inc.

    Inventor： Matthew D. Thoren ,  John C. Cobb

    IPC: B63G8/18

    CPC classification number: B63G8/18

    Abstract: A replacement fin for an underwater vehicle includes a fin defining a socket that includes a bore of a first diameter and an internal spring recess of a larger diameter. A coil spring is retained in the spring recess and has coils of an elongated coil shape. The coil spring can occupy a first canted position in which the coils are canted in a direction generally into the bore and the coils can occupy a second canted position in which the coils are canted in a direction generally out of the bore. The UUV has a post that can include at least one circumferential recess configured to engage the coil spring, and which can function as a lock in some canted orientations of the spring. Alternately, the socket is defined in the UUV and the fin includes a post sized to be received in the socket.

    JAMMER DETECTION SYSTEM
    629.
    发明公开
    JAMMER DETECTION SYSTEM 审中-公开

    公开(公告)号：US20240171300A1

    公开(公告)日：2024-05-23

    申请号：US17991435

    申请日：2022-11-21

    Applicant: BAE SYSTEMS Information and Electronic Systems Integration Inc.

    Inventor： Michael H. Stockmaster ,  Ying Cho J. Lai ,  Aaron P. Shaffer ,  Ryan D. Downey

    IPC: H04K3/00 ,  G01S3/04 ,  G06N3/08

    CPC classification number: H04K3/822 ,  G01S3/043 ,  G06N3/08 ,  H04K3/88 ,  G01S7/021

    Abstract: Techniques are provided for jammer detection. A methodology implementing the techniques according to an embodiment includes estimating an angle of arrival of a jamming signal, the jamming signal included in a received signal, and generating a direction finding (DF) confidence indicator associated with the estimated angle of arrival. The method also includes extracting the jamming signal from the received signal. The method further includes correlating the extracted jamming signal with previously extracted jamming signals to generate a correlation score and using the correlation score as a uniqueness assessment of the extracted jamming signal. The method further includes identifying characteristics of the extracted jamming signal and generating a characterization confidence indicator. The method further includes demoting the extracted jamming signal to non-jammer status based on one or more of the DF confidence indicator, the uniqueness assessment, and the characterization confidence indicator.

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