Analysis and Suppression for Nonstationary Clutter in Airborne Conformal Array Radar

摘要：

The characteristics of clutter nonstationarity for airborne radar with conformal antennas array (CAA) are analyzed, and an improved angle-Doppler compensation method is proposed based on above analysis. Unlike the uniform linear antennas array (LAA), the elements of CAA distribute in three-dimension space which lead to that the clutter angle-Doppler spectrum distribution should be described in four-dimension space. According to this theory, the clutter nonstationarity for airborne radar with CAA is firstly analyzed and the nonstationary nature of it is given. Then an improved STAP method for airborne radar with CAA which compensates the mainlobe clutter in four-dimension frequency domain is proposed. Finally, the simulation shows the effectiveness of the novel method for clutter suppression in airborne radar with CAA.

关键词： Conformal antennas array (CAA) Nonstationary clutter Space-time adaptive processing (STAP) Clutter suppression

作者: DUAN Ke-qing XIE Wen-chong WANG Yong-liang

作者单位: School of Electronic Science and Engineering, NUDT, Changsha, China Key Research Lab, Air Force Rada Key Research Lab, Air Force Radar Academy, Wuhan, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2087-2091

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）