火力与指挥控制2012，Vol.37Issue(1)：32-35,4.
无源双基地雷达系统直达波抑制算法
Research on Direct Signal Cancellation Algorithm of Passive Bistatic Radar
摘要
Abstract
The target parameters estimation of the delay-Doppler of passive bistatic radar is based on the Cross-Ambiguity Function (CAF) between the target echo and the direct signal channel. Although the interference signal CAF peak is located at the zero range and Doppler bin, its side lobe is still higher than the target CAF peak, so the target will be masked by the higher noise floor. In order to detect target echoes, it is necessary to cancel the direct signal in the target echo channel. The LS algorithm based vector space is proposed to resolve the problem. The result shows that the algorithm can significantly depress the direct signal; it can also detect the weak target which is masked by strong target echoes.关键词
直达波抑制/互模糊函数/矢量空间Key words
direct signal cancellation/ cross-ambiguity function/ vector space分类
信息技术与安全科学引用本文复制引用
李国君,唐小明,张财生..无源双基地雷达系统直达波抑制算法[J].火力与指挥控制,2012,37(1):32-35,4.基金项目
国家自然科学基金资助项目(60672139) （60672139）
