极化SAR动目标定位中的残差图像干涉相干性分析  

Analysis of the Interferometric Coherence between Residule Images in Location of Moving Target with Polarimetric SAR

作　　者：刘忠训[1] 代大海[1] 王雪松[1] 李盾[1] 

机构地区：[1]国防科技大学电子科学与工程学院,长沙410073

出　　处：《电子与信息学报》2009年第3期606-609,共4页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(60736006);国防科技大学优秀研究生创新基金(S070406)资助课题

摘　　要：该文研究极化SAR动目标检测及定位中的频域残差图像干涉相干性优化问题。给出了多普勒频域杂波对消处理的基本流程,提出了一种利用频域残差图像进行最优极化干涉处理从而提高目标运动参数估计精度的方法。结合最优极化干涉理论,通过仿真分析研究了不同极化下频域残差图像的干涉相干性,验证了文中方法的有效性。This paper mainly deals with the optimal inteferometric coherence of the residual images in frequency domain in detection and location of moving target with polarimetric SAR. The essential procedure of clutter cancellation in doppler frequency is presented. A novel method for improving the estimated accuracy of the motion parareters is proposed by taking the optimal polarimetric interferometry processing with residual images in frequency＂ domain. Referring to the theory of optimal polarimetric interferometry, the interferometric coherences of the residual images with different polarization are analyzed. Simulation results show the effectiveness of proposed method.

关 键 词：SAR 最优极化干涉 动目标检测定位 杂波对消 频域残差图像 

分 类 号：TN957.52[电子电信—信号与信息处理]