Research on ISRJ interference suppression method based on time domain filter

Changlin Zhou; Chunyang Wang; Jian Gong; Ming Tan

doi:10.1117/12.2639032

29 April 2022 Research on ISRJ interference suppression method based on time domain filter

Changlin Zhou, Chunyang Wang, Jian Gong, Ming Tan

Proceedings Volume 12255, 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022); 1225505 (2022) https://doi.org/10.1117/12.2639032
Event: 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022), 2022, Chongqing, China

Abstract

The linear frequency modulation (LFM) signal is a common transmit signal of radar, which can significantly improve the performance of the radar. However, when the main lobe of the radar is affected by interrupted sampling reperter jamming (ISRJ), its detection performance is degraded because the jamming signal and the transmitted signal are highly coincident in the time and frequency domains. Using the principle of time-domain discontinuity of the ISRJ signal, we propose an anti-ISRJ jamming algorithm based on time-domain filter and compressive sensing reconstruction. Then, we focus on analyzing the performance of the algorithm in suppressing ISRJ signals with different duty cycles. The simulation results show that the proposed algorithm can effectively suppress ISRJ with different duty cycles, and the larger the ISRJ duty cycle, the better the suppression effect.

Citation Download Citation

Changlin Zhou, Chunyang Wang, Jian Gong, and Ming Tan "Research on ISRJ interference suppression method based on time domain filter", Proc. SPIE 12255, 2022 International Conference on Optoelectronic Information and Functional Materials (OIFM 2022), 1225505 (29 April 2022); https://doi.org/10.1117/12.2639032

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