一种基于DPCA相位补偿的降维ΣΔ-STAP方法  

Reduced-rank-STAP technique based on DPCA phase compensation

作　　者：江朝抒[1] 向敬成[1] 陈祝明[1] 姒牟孙[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：《系统工程与电子技术》2005年第9期1553-1556,1643,共5页Systems Engineering and Electronics

摘　　要：分析了机载火控相控阵雷达的地杂波的空时二维分布特点,提出了一种基于DPCA(displaced phasecenter antenna)相位补偿的降维∑-ΔSTAP方法,分析了其平台运动补偿的基本原理,对其低速动目标检测性能进行了计算机仿真分析,并将其性能与运算量同3DT-∑-ΔSTAP进行了比较。结果表明,该处理方法不仅具有接近于3DT-∑-ΔSTAP的杂波抑制性能,而且运算量远低于3DT-∑-ΔSTAP,因此是机载火控雷达机上处理的一种优选方案。The space-time distribution characteristics of ground clutter returns in airborne fire-control radar are analysed. A reduced-rank -STAP technique based on DPCA phase compensation is presented, and its principle of platform motion eompensaton is analyzed. The simulation results are given, and its GMTI performance is compared with that of 3DT-STAP. It is shown that the GMTI performance of this method is nearly as excellent as that of the latter but much lower computation complexity is needed. So this method is a good choice for onhoard GMTI processing for airhome fire-control radar.

关 键 词：相位中心偏置天线 ∑△-STAP 平台运动补偿 杂波抑制 地面运动目标显示 

分 类 号：TN957.51[电子电信—信号与信息处理]