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公开(公告)号：US20240171300A1
公开(公告)日：2024-05-23
申请号：US17991435
申请日：2022-11-21
Inventor： Michael H. Stockmaster , Ying Cho J. Lai , Aaron P. Shaffer , Ryan D. Downey
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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公开(公告)号：US20240172143A1
公开(公告)日：2024-05-23
申请号：US17992214
申请日：2022-11-22
Inventor： Michael H. Stockmaster , Robert J. Thompson , Aaron P. Shaffer
CPC classification number: H04W52/52 , H04B17/0085 , H04W24/08 , H04W52/242
Abstract: Techniques are provided for automatic gain control. A methodology implementing the techniques according to an embodiment includes imparting, by a first adjustable attenuator, a first attenuation to a received radio frequency signal to generate a first attenuated signal. The first attenuation is based on a first control signal. The method also includes imparting, by a second adjustable attenuator, a second attenuation to the first attenuated signal to generate a second attenuated signal. The second attenuation is based on a second control signal. The method further includes converting, by an analog-to-digital converter, the second attenuated signal to a digital signal and measuring, by a processor based system, the ratio of peak power of the digital signal to average power of the digital signal, to generate a peak-to-average ratio (PAR) value. The first control signal and the second control signal are generated based in part on the PAR value.
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公开(公告)号：US12040888B2
公开(公告)日：2024-07-16
申请号：US17991435
申请日：2022-11-21
Inventor： Michael H. Stockmaster , Ying Cho J. Lai , Aaron P. Shaffer , Ryan D. Downey
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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