自适应三维极化滤波  

Adaptive three-dimension polarization filtering

作　　者：徐建平[1] 张扬[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《航天电子对抗》2008年第1期54-56,共3页Aerospace Electronic Warfare

摘　　要：三维极化滤波能够更好地利用空域信息,在极化域-空域联合滤波,因此能够抑制二维正交极化滤波不能滤除的干扰,达到更好的滤波效果。实际应用中,信号通常是未知的或者变化的,要达到好的滤波效果,必须实时更新滤波参数。针对未知的或缓变的信号环境,提出了一种自适应三维极化滤波算法,利用历史杂波数据来估计杂波的极化信息,据此对天线进行调整,以对接收信号滤波。最后通过Matlab仿真验证了该算法的有效性。Three-dimension polarization filtering can use the spatial information more efficiently. It＇s a joint filtering algorithm in polarization and spatial domains, so it can constrain interference that can＇t be filtered in two-dimension filtering, In fact, signals are always unknown or changing over time. In order to get better filtering effect,the filtering parameters must be renewed over time. Aiming at the unknown or changing signal condition,an adaptive three-dimension polarization filtering algorithm is proposed which uses the historical clutter data to estimate the clutter polarization information,adjust the antenna,and filter the received signal, At last, Matlab simulation verifies the validity of the proposed algorithm.

关 键 词：三维极化 自适应 极化滤波 

分 类 号：TN713[电子电信—电路与系统]