Results 11 to 20 of about 9,318 (262)
International Journal of Antennas and Propagation, 2022 Interrupted-sampling repeater jamming (ISRJ) is a new kind of coherent jamming for linear frequency modulation (LFM) signals. Based on digital radio frequency memory (DRFM), ISRJ can generate multiple false target groups by intercepting, storing, and ...
Zijian Wang +4 more
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Frontiers in Physics, 2023 Given the improved capabilities of radar systems, addressing unfamiliar signals presents a challenge for radar jamming technology. To tackle this issue, this study proposes an adaptive technique for optimizing jamming waveforms to suppress multiple false
Yanqi Wang +9 more
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A Robust Method to Suppress Jamming for GNSS Array Antenna Based on Reconstruction of Sample Covariance Matrix [PDF]
International Journal of Antennas and Propagation, 2017 The Global Navigation Satellite System (GNSS) receiver is vulnerable to active jamming, which results in imprecise positioning. Therefore, antijamming performance of the receiver is always the key to studies of satellite navigation system. In antijamming
Yanyun Gong +3 more
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High Precision Sparse Reconstruction Scheme for Multiple Radar Mainlobe Jammings [PDF]
Electronics, 2020 Radar mainlobe jamming has attracted considerable attention in the field of electronic countermeasures. When the direction of arrival (DOA) of jamming is close to that of the target, the conventional antijamming methods are ineffective. Generally, mainlobe antijamming method based on blind source separation (BSS) can deteriorate the target direction ...
Cheng, Zhu, Zhang
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Radar Active Jamming Recognition under Open World Setting
Remote Sensing, 2023 To address the issue that conventional methods cannot recognize unknown patterns of radar jamming, this study adopts the idea of zero-shot learning (ZSL) and proposes an open world recognition method, RCAE-OWR, based on residual convolutional ...
Yupei Zhang, Zhijin Zhao, Yi Bu
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A cross‐layer anti‐jamming method in satellite Internet
IET Communications, 2023 In view of the diverse jamming environment, the single‐level anti‐jamming method faces some challenges such as poor timeliness, high cost and poor effect.
Peijie Yan +3 more
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Remote Sensing, 2022 Jamming will seriously affect the detection ability of radar, so it is essential to suppress the jamming of radar echoes. Interrupted-sampling repeater jamming (ISRJ) based on a digital-radio-frequency-memory (DRFM) device can generate false targets at ...
Xuesi He +4 more
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Robust Suppression of Deceptive Jamming with VHF-FDA-MIMO Radar under Multipath Effects
Remote Sensing, 2022 Frequency diverse array multiple-input multiple-output (FDA-MIMO) radar has received a lot of attention due to the advantages of waveform diversity. Suppression of mainlobe deceptive jamming can be effectively achieved with the degree of freedom (DOF) in
Yibin Liu +4 more
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A sparse reconstruction algorithm for mainlobe towed jamming suppression [PDF]
SCIENTIA SINICA Informationis, 2019 A sparse reconstruction algorithm for near-mainlobe jamming suppression is proposed in this paper, which can suppress the mainlobe towed jamming (MTJ) effectively and extract the distance and direction of the target. Firstly, the orthogonal matching pursuit (OMP) algorithm is adopted to estimate the MTJ information containing direction, amplitude and ...
Keqing DUAN +5 more
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Leida xuebao, 2023 Dense-repeated jamming is highly related to the radar-transmitted signal, and it has suppression and deception jamming effects, which makes detecting the real target difficult for a radar system and seriously threatens the operational capability of radar.
Siyu DU +4 more
doaj +1 more source