雷达科学与技术2025，Vol.23Issue(5)：540-550,11.DOI:10.3969/j.issn.1672-2337.2025.05.008
非合作双基地雷达ECA-CMAP杂波抑制方法
ECA-CMAP Clutter Suppression Method for Passive Bistatic Radar
摘要
Abstract
Passive bistatic radar(PBR)avoids electromagnetic interference to a great extent because of the layout mode of transmitting and receiving separately.However,it faces a lot of short-range ground clutter interference in its work,and it is difficult to detect the target when it is submerged in a lot of clutter,especially for PBR with pulse radar as its external radiation source,the clutter processing is more difficult.In this paper,a time-domain monopulse extensive cancellation algorithm-clutter map(ECA-CMAP)clutter suppression method is proposed for PBR with pulse radar as ex-ternal radiation source,aiming at the problem that it faces a large number of short-range ground clutter to cover up the target in practical work.Firstly,based on the classical time domain clutter suppression method ECA(extensive cancella-tion algorithm),an improved scheme based on clutter time delay estimation is proposed,which can suppress short-range ground clutter and keep the target intact,and the signal-to-clutter ratio is increased by nearly 50 dB,and the target detection probability is further improved by using Nitzberg clutter map algorithm.Simulation and result of measured data processing verify the effectiveness of the algorithm.关键词
非合作双基地雷达/运动目标检测/地杂波抑制/时域扩展相消/杂波图/单脉冲处理Key words
passive bistatic radar/moving target detection/ground clutter suppression/time domain extensive cancellation/clutter map/monopulse processing分类
电子信息工程引用本文复制引用
梁师源,潘嘉蒙,鲍庆龙,肖怀铁..非合作双基地雷达ECA-CMAP杂波抑制方法[J].雷达科学与技术,2025,23(5):540-550,11.基金项目
国家自然科学基金(No.62201594,62201588) （No.62201594,62201588）
