一种适用于双通道星载SAR的动目标检测技术  

A Moving Target Detection Method for Dual-Aperture Spaceborne SAR

作　　者：张绪锦[1] 朱兆达[1] 邓海涛[2] 张长耀[2] 陈仁元[2] 

机构地区：[1]南京航空航天大学电子信息工程学院,江苏南京210016 [2]华东电子工程研究所,安徽合肥230031

出　　处：《电子学报》2007年第9期1794-1798,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60502030);863项目(No.2003AA782041)

摘　　要：实用的星载SAR/GMTI系统仍处于研制阶段,从工程实现的角度研制一发双收的星载SAR/GMTI处理系统是可行的,仿真结果表明这种体制能够有效抑制地杂波,增强信杂比,从而检测出被地杂波淹没的慢动目标信号,并进行动目标参数估计.运用论文给出的原理和检测方法对机载SAR/GMTI战场侦察雷达试验系统录取的动目标数据进行了实际验证,获得了多帧连续可靠的真实动目标轨迹.Developing spacebome SAR-GMTI system is concem by many countries,in view of engineering realize, we presented a spacebome SAR-GMTI processing system model which use one aperture for transmitter and two receiver, computer, simulation results show that the system can suppress clutter effective and enhance signal-to-clutter ratios （SCRs） sharply,so the radar system can easily estimating parameters and detecting ground slowly moving targets even they were embed in clutter. Follow the paper＇ s method, after processing a part of the actual measured data recorded from an airbome battlefield reconnaissance radar designed by ECRIEE, which take the first airborne SAR-GMTI tested in China, we get a continuous true track of ground slowly moving targets.

关 键 词：星载SAR/GMTI 地面动目标轨迹 杂波抑制 恒虚警检测 

分 类 号：TN957[电子电信—信号与信息处理]