A FAST APPROXIMATE IMAGING ALGORITHM FOR SPACEBORNE SYNTHETIC APERTURE RADAR

作     者：黄永红 毛士艺 洪文 Huang Yonghong Mao Shiyi Hong Wen(Beijing University of Aeronautics and Astronautics, Beijing 100083)

作者机构：Beijing University of Aeronautics and Astronautics Beijing 100083 

出 版 物：《Journal of Electronics(China)》 (电子科学学刊（英文版）)

年 卷 期：1994年第11卷第2期

页      面：97-103页

学科分类：080904[工学-电磁场与微波技术] 0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 081105[工学-导航、制导与控制] 081001[工学-通信与信息系统] 081002[工学-信号与信息处理] 0825[工学-航空宇航科学与技术] 0811[工学-控制科学与工程] 

基　　金：Supported by "863" High-Technique of the State Science and Technology Commission 

主　　题：Synthetic aperture radar Spectrum analysis Azimuth resolution Range migration 

摘      要：A fast algorithm of azimuth processing for spaceborne aperture radar (SAR), which is called SPECAN algorithm, is proposed. Compared with general frequency algorithms, SPECAN has advantages in computation, memory and structure. SPECAN algorithm is very important for surveying real time processing of spaceborne 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 verify the feasibility of SPECAN algorithm.