雷达学报2026，Vol.15Issue(2)：650-661,12.DOI:10.12000/JR25094
雷达变脉宽脉冲串与接收失配滤波协同设计方法
Joint Design of Variable-pulse-width Radar Pulse Trains and Receive Mismatched Filtering
摘要
Abstract
Low-sidelobe waveforms are fundamental for ensuring the basic detection performance of radars.Designing waveforms with low sidelobes in the range dimension,the velocity dimension,or both,remains a major challenge in radar research.To address the issue of sidelobe suppression in the velocity dimension for coherent pulse trains,this paper proposes a joint design method of variable-pulse-width pulse trains and receive mismatched filtering.The proposed method uses a symmetric positive window function to directly construct both the pulse width sequence and the receive weighting sequence.As a result,the characteristics of the window function's amplitude spectrum,including low sidelobes and the broadening of the 3-dB mainlobe,are transferred into the mismatched filtering output of the coherent pulse train.Theoretical analysis shows that the proposed method incurs a smaller mismatched Signal-to-Noise Ratio(SNR)loss than when the window function is applied solely for receive mismatched filtering.The effects of window functions and the minimum pulse-width constraint on SNR loss and weak target detection performance under strong target interference are analyzed through simulations,illustrating the advantages of the proposed joint transceiver design method.关键词
雷达波形分集/波形设计/窗函数/脉冲宽度/失配滤波Key words
Radar waveform diversity/Waveform design/Window function/Pulse width/Mismatched filtering分类
信息技术与安全科学引用本文复制引用
张逸康,叶宏宇,吴文昊,吴嗣亮..雷达变脉宽脉冲串与接收失配滤波协同设计方法[J].雷达学报,2026,15(2):650-661,12.基金项目
国家自然科学基金(62201050)The National Natural Science Foundation of China(62201050) （62201050）
