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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2022-06-19
A Novel Radar Waveform Design for Suppressing Autocorrelation Side-Lobe Based on Chaotic and Single Fusion Encoding Method
By
Ji Li,

    Dr. Ji Li

    College of Computer and Communication Engineering

    Changsha University of Science and Technology

    China

    Homepage

Min Liu,

    Dr. Min Liu

    College of computer and Communication Engineering

    Changsha University of Science & Technology

    China

    Homepage

Jianping Ou,

    Dr. Jianping Ou

    National University of Defense Technology (NUDT)

    China

    Homepage

Wei Wang

    Dr. Wei Wang

    Changsha University of Science & Technology

    China

    Homepage

Progress In Electromagnetics Research M, Vol. 111, 77-88, 2022
doi:10.2528/PIERM22042202 | Google Scholar

Abstract
Multi-carrier Phase Coded (MCPC) signal has the advantages of large time-bandwidth product, low intercept, anti-jamming, digitization, flexible waveform, and high spectral utilization, and has become a hotspot in radar waveform research. However, MCPC signal has high-distance sidelobes which are difficult to suppress, after pulse compression processing. Excessive sidelobes will mask the existence of small and weak targets, thus losing the target signal, which limits the practical application of MCPC signals. Therefore, it is of great significance and practical value to study the sidelobe suppression of MCPC signals. From the point of view of waveform design, a multi-carrier phase-encoded signal combining chaotic encoding and single encoding (MCPC-CS) is designed by using chaotic sequence as phase encoding of MCPC signal and optimizing it. In this paper, peak sidelobe level ratio (PSLR) is used as a evaluation factor of the autocorrelation function. The simulation results show that MCPC-CS signal has a good autocorrelation peak sidelobe level ratio, and the autocorrelation sidelobe is reduced by more than 3 dB compared with the normal MCPC signal.
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Citation
Ji Li, Min Liu, Jianping Ou, and Wei Wang, "A Novel Radar Waveform Design for Suppressing Autocorrelation Side-Lobe Based on Chaotic and Single Fusion Encoding Method," Progress In Electromagnetics Research M, Vol. 111, 77-88, 2022.
doi:10.2528/PIERM22042202
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