一种新的相控阵机载预警雷达孤立干扰抑制方法  

A New Method to Isolated Interferers Suppression for Phased Array AEW Radar

作　　者：王万林[1] 廖桂生[1] 张光斌[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,西安710071

出　　处：《电子与信息学报》2005年第2期278-282,共5页Journal of Electronics & Information Technology

基　　金：国家部级基金资助项目

摘　　要：在非均匀(Non-homogeneous)杂波环境中,孤立干扰若得不到有效抑制必将引起目标检测性能严重变差。对此该文提出了一种新的非均匀环境下两级空时自适应处理的级联算法,即首先根据均匀杂波的分布特性选取辅助波束用辅助通道法滤除均匀杂波,然后用直接数据域算法抑制孤立干扰。该方法具有性能优良、鲁棒性好和计算量低等优点,其有效性为计算机仿真实验结果所验证。The heavy loss of target detection performance must be resulted if the isolated interferers can not be effectively suppressed in the non-homogeneous environment of clutter. Therefore, a new method of two stage hybrid space time adaptive processing in non-homogeneous environment is presented in this paper, in which the homogeneous clutter is firstly suppressed based on auxiliary channel processing approach by selecting auxiliary channel according to clutter's distributing characters in the beam Doppler space and the isolated interferers is latterly mitigated based on direct data domain algorithm. This method has advantages of excellent target detection performance, good robust to whether small yaw exists or not, and low computation load. Simulation results are presented to demonstrate its effectiveness.

关 键 词：相控阵机载预警雷达 空时自适应处理 非均匀 孤立干扰 直接数据域 

分 类 号：TN957[电子电信—信号与信息处理] TN959[电子电信—信息与通信工程]