一种SAR图像中目标姿态估计的综合方法  

A Synthetical Aspect Estimate Method for SAR Targets

作　　者：郦苏丹[1] 李广侠[1] 张翠[2] 王正志[2] 

机构地区：[1]解放军理工大学通信工程学院,南京210007 [2]国防科技大学自动控制系,长沙410073

出　　处：《信号处理》2003年第5期473-477,共5页Journal of Signal Processing

摘　　要：合成孔径雷达(SAR)目标成像与其方位角密切相关,因此方位角对于目标模型的建立具有重要影响。本文首先介绍几种不同原理的目标方位角估计方法,分析他们在实际应用中存在的局限性。然后通过研究不同方位角条件下目标成像所具备的特性,提出一种目标方位角综合估计方法。该方法判断当前目标成像所具有的特点,先取相应的准则来对目标方位角进行估计。利用MSTAR公共目标数据库中的目标样本,通过实验证明该方法能够比较准确的获得目标方位角的估计。The target imaging in SAR close relates to target aspect, so target aspect has important influence on the target modeling. In this paper, some aspect estimate motheds based on different principle are indroduced first, and their limitation in application is analysed. Then by studying the characteristic of target imaging under different aspect range, a kind of synthetical aspect estimate method is proposed. This method selects appropriate rule to estimate target aspect by judging the target image characteristic. We apply this synthetical estimate method to the sample data of MSTAR pubic target database, the experiment result shows this method can get accurate targets' aspect estimate.

关 键 词：合成孔径雷达 目标成像 目标姿态估计 SAR 

分 类 号：TN958[电子电信—信号与信息处理]