异构平台双基SAR成像的RD算法  

Focusing Bistatic SAR Data from Heterogeneous Platforms Using the Range Doppler Algorithm

作　　者：丁金闪[1,2] Otmar Loffeld Holger Nies 保铮[1] 邢孟道[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071 [2]锡根大学传感系统研究所,德国锡根57076

出　　处：《电子学报》2009年第6期1170-1174,共5页Acta Electronica Sinica

基　　金：“新世纪优秀人才支持计划”项目(No.NCET-06-0861)

摘　　要：LBF是第一个原理上适用于任意构型双基SAR的点目标二维解析频谱.传统的LBF对于速度差异较大的异种平台构型双基SAR的精度低,无法实现有效聚焦成像处理.本文给出了一种基于加权LBF的双基SAR的RD算法.仿真成像结果验证了所提方法的有效性.The Loffeld＇s Bistatic Formula （LBF） is the first solution for general bistatic SAR point target reference spectrum. Unfortunately, the original LBF shows limitation when applied to the bistatic system which consists of different type of platforms. By using a Doppler contribution weight in the phase history division,the weighted LBF can be used to focus the bistafic SAR data collected by heterogeneous platforms. A WLBF-based range Doppler algorithm is presented to focus the whole SAR scene.

关 键 词：双基SAR 加权LBF 异构双基 RD算法 

分 类 号：TN957[电子电信—信号与信息处理]