An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction
Faced with increasingly complex electronic jamming environments, intra-pulse agility has become a primary method of anti-interrupted-sampling repeater jamming (ISRJ) for radar systems. However, existing intra-pulse agile signals suffer from high autocorrelation sidelobe levels and limited jamming su...
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2025-05-01
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| author | Ziming Yin Pengcheng Guo Yunyu Wei Sizhe Gao Jingjing Wang Anxiang Xue Kuo Wang |
| author_facet | Ziming Yin Pengcheng Guo Yunyu Wei Sizhe Gao Jingjing Wang Anxiang Xue Kuo Wang |
| author_sort | Ziming Yin |
| collection | DOAJ |
| description | Faced with increasingly complex electronic jamming environments, intra-pulse agility has become a primary method of anti-interrupted-sampling repeater jamming (ISRJ) for radar systems. However, existing intra-pulse agile signals suffer from high autocorrelation sidelobe levels and limited jamming suppression capabilities. These issues restrict the performance of intra-pulse agile signals in complex electromagnetic environments.This paper proposes an anti-interrupted-sampling repeater jamming method based on Simulated Annealing–2-optimization (SA-2opt) parallel optimization of waveforms and fractional domain extraction. Firstly, the proposed method employs the SA-2opt parallel optimization algorithm to optimize the joint frequency and chirp rate encoding waveform. Then, the received signal is subjected to the fractional Fourier transform (FrFT) and inverse transform to extract the target signal. Finally, jamming detection is conducted based on the multi-dimensional features of the pulse-compressed signal. After this detection, a time-domain filter is constructed to achieve jamming suppression. The optimized waveform exhibits the following advantages: the sub-pulses are orthogonal to each other, and autocorrelation sidelobe levels are as low as -20.7dB. The method proposed in this paper can achieve anti-ISRJ in the case of a high jamming-to-signal ratio (JSR). Simulation experiments validate both the effectiveness of the optimized waveform in achieving low autocorrelation sidelobes and the anti-ISRJ performance of the proposed method. |
| format | Article |
| id | doaj-art-cde8d413a24745c7ba66d98de5f9c60f |
| institution | Kabale University |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-cde8d413a24745c7ba66d98de5f9c60f2025-08-20T03:47:57ZengMDPI AGSensors1424-82202025-05-012510300010.3390/s25103000An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain ExtractionZiming Yin0Pengcheng Guo1Yunyu Wei2Sizhe Gao3Jingjing Wang4Anxiang Xue5Kuo Wang6Xi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaXi’an Electronic Engineering Research Institute, Xi’an 710100, ChinaFaced with increasingly complex electronic jamming environments, intra-pulse agility has become a primary method of anti-interrupted-sampling repeater jamming (ISRJ) for radar systems. However, existing intra-pulse agile signals suffer from high autocorrelation sidelobe levels and limited jamming suppression capabilities. These issues restrict the performance of intra-pulse agile signals in complex electromagnetic environments.This paper proposes an anti-interrupted-sampling repeater jamming method based on Simulated Annealing–2-optimization (SA-2opt) parallel optimization of waveforms and fractional domain extraction. Firstly, the proposed method employs the SA-2opt parallel optimization algorithm to optimize the joint frequency and chirp rate encoding waveform. Then, the received signal is subjected to the fractional Fourier transform (FrFT) and inverse transform to extract the target signal. Finally, jamming detection is conducted based on the multi-dimensional features of the pulse-compressed signal. After this detection, a time-domain filter is constructed to achieve jamming suppression. The optimized waveform exhibits the following advantages: the sub-pulses are orthogonal to each other, and autocorrelation sidelobe levels are as low as -20.7dB. The method proposed in this paper can achieve anti-ISRJ in the case of a high jamming-to-signal ratio (JSR). Simulation experiments validate both the effectiveness of the optimized waveform in achieving low autocorrelation sidelobes and the anti-ISRJ performance of the proposed method.https://www.mdpi.com/1424-8220/25/10/3000anti-intermittent-sampling relaying jammingsimulated annealing–2-optimization parallel optimizationwaveform designfractional Fourier transform |
| spellingShingle | Ziming Yin Pengcheng Guo Yunyu Wei Sizhe Gao Jingjing Wang Anxiang Xue Kuo Wang An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction Sensors anti-intermittent-sampling relaying jamming simulated annealing–2-optimization parallel optimization waveform design fractional Fourier transform |
| title | An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction |
| title_full | An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction |
| title_fullStr | An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction |
| title_full_unstemmed | An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction |
| title_short | An Anti-Interrupted-Sampling Repeater Jamming Method Based on Simulated Annealing–2-Optimization Parallel Optimization of Waveforms and Fractional Domain Extraction |
| title_sort | anti interrupted sampling repeater jamming method based on simulated annealing 2 optimization parallel optimization of waveforms and fractional domain extraction |
| topic | anti-intermittent-sampling relaying jamming simulated annealing–2-optimization parallel optimization waveform design fractional Fourier transform |
| url | https://www.mdpi.com/1424-8220/25/10/3000 |
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