星载合成孔径雷达(SAR)成像处理快速近似算法  

A FAST APPROXIMATE IMAGING ALGORITHM FOR SPACEBORNE SYNTHETIC APERTURE RADAR

作　　者：黄永红[1] 毛士艺[1] 

机构地区：[1]北京航空航天大学电子工程系,北京100083

出　　处：《电子科学学刊》1993年第6期561-566,共6页

基　　金：国家科委863高技术资助项目

摘　　要：本文研究了一种用于星载SAR方位处理的快速算法,称为SPECAN算法,该算法与常规的频域算法相比较,在计算量、存贮量和算法结构上都有明显的优势。它可作为星载SAR粗处理的实时处理算法,对星载SAR实时成像处理具有重大意义。本文着重(?)(?)了SPECAN算法的结构及其在星载SAR中所需解决的特殊问题。最后,利用SEASAT(?)A海洋卫星SAR原始数据验证了该算法的可行性。A fast algorithm of azimuth processing for spaceborne SAR, which is called SPECAN algorithm, is proposed. Comparing with general frequency algorithms, SPECAN has advantages in computation, memory and structure. SPECAN algorithm is very important for surveying real-time processing of spacehorne SAR. The structure and special problems for SPECAN algorithm used in spaceborne SAR are mainly engaged in this paper. Finally, raw data of SEASAT-A satellite is used to test the feasibility of SPECAN algorithm.

关 键 词：合成孔径雷达 频谱 成像 星载雷达 

分 类 号：TN959.74[电子电信—信号与信息处理]