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ZHANG Shunsheng, HUANG Pan, and WANG Wenqin. Suppression of interrupted-sampling repeater jamming based on matched filtering features[J]. Journal of Radars, in press. doi: 10.12000/JR25015
Citation: ZHANG Shunsheng, HUANG Pan, and WANG Wenqin. Suppression of interrupted-sampling repeater jamming based on matched filtering features[J]. Journal of Radars, in press. doi: 10.12000/JR25015
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Suppression of Interrupted-sampling Repeater Jamming Based on Matched Filtering Features

DOI: 10.12000/JR25015 CSTR: 32380.14.JR25015
  • 1.

    Research Institute of Electronic Science and Technology, University of Electronic Science and Technology of China, Chengdu 611731, China

  • 2.

    School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

Funds:  The National Ministries Foundation
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  • Corresponding author: ZHANG Shunsheng, zhangss@uestc.edu.cn
  • Received Date: 2025-01-16
  • Rev Recd Date: 2025-04-29
    • Available Online: 2025-05-06
    Abstract
  • Transmit coherence synthesis of the target of interest is crucial for achieving full coherence in distributed coherent aperture radars. Interrupted-Sampling Repeater Jamming (ISRJ) in the coherent parameter estimation phase poses great difficulties in transmitting coherence completely. To solve this issue, an interference suppression method based on ISRJ matched filtering features is proposed. This method can overcome the limitations of time-frequency domain filtering under low Jamming-to-Noise Ratio (JNR) conditions while providing a more accurate means of estimating interference parameters for interference reconstruction and cancellation under high JNR conditions. Simulation results showed that the proposed method achieved a significant suppression effect on ISRJ. At low JNRs, the probability of target detection increased by over 40% compared with other methods such as time-frequency domain filtering. At high JNRs, the equivalent signal-to-jamming ratio improved by more than 2.5 dB relative to other approaches.

     

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