基于空时两维变换的距离非平稳杂波环境STAP方法  

A New Space-Time Compensation Method for STAP in Non-Stationary Clutter

作　　者：张炜 郑坤 ZHANG Wei;ZHENG Kun(Science and Technology on Electronic Information Control Laboratory,Chengdu,Sichuang 610036,China)

机构地区：[1]电子信息控制重点实验室,四川成都610036

出　　处：《北京理工大学学报》2020年第12期1356-1361,共6页Transactions of Beijing Institute of Technology

基　　金：国家部委预研基金资助项目。

摘　　要：针对机载非正侧视阵雷达的杂波距离依赖性问题,提出一种基于空时两维变换的机载非正侧视阵雷达近程杂波补偿方法.利用杂波导向矢量在空时两维的特殊结构,在补偿主瓣杂波距离依赖性的同时,也能够对旁瓣杂波距离依赖性进行补偿.计算机仿真结果表明,算法能够对杂波距离非平稳性进行补偿,提高空时自适应处理(STAP)的杂波抑制性能.A space-time compensation method,which mitigates the range dependence of ground clutter for the side-looking airborne radar was proposed.By using the specific structure of the space-time steering vector of the clutter,the proposed method was arranged to mitigate the range dependence of both the main-lobe and side-lobe clutter.The simulation results show that,the proposed method can compensate non-stationary distribution of ground clutter,improving the performance of the space-time adaptive processing(STAP).

关 键 词：机载非正侧视阵 距离非平稳 空时自适应处理 

分 类 号：TN957.51[电子电信—信号与信息处理]