SAR imaging method for sea scene target based on improved phase retrieval algorithm  

作　　者：Hongyin Shi Qiuxiao Zhou Xiaoyan Yang Qiusheng Lian 

机构地区：[1]School of Information Science and Engineering, Yanshan University

出　　处：《Journal of Systems Engineering and Electronics》2016年第6期1176-1182,共7页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(61471313;61571388);the Natural Science Foundation of Hebei Province(F2016203251)

摘　　要：Due to the influence of the platform random motion and electromagnetic propagation in turbulent media, the synthetic aperture radar (SAR) high resolution imaging for the sea scenes where there are large amounts of water returns with some target (land) returns is very difficult. To solve this problem, a SAR imaging method based on the improved phase retrieval (PR) algorithm is proposed. First, a filter is added to the conventional PR algorithm which can reduce the influence of water returns on the reconstruction of the targets and improve the reconstruction result of the targets. Then, the corrupted phase of the Fourier transform of the intensity image in the iterative process, which can improve the stability of the iterative algorithm, is used to reduce the recovery errors, and a better recovery performance is achieved. Finally, several experiments are performed to demonstrate the advantages of the proposed method. © 2016 Beijing Institute of Aerospace Information.Due to the influence of the platform random motion and electromagnetic propagation in turbulent media, the synthetic aperture radar (SAR) high resolution imaging for the sea scenes where there are large amounts of water returns with some target (land) returns is very difficult. To solve this problem, a SAR imaging method based on the improved phase retrieval (PR) algorithm is proposed. First, a filter is added to the conventional PR algorithm which can reduce the influence of water returns on the reconstruction of the targets and improve the reconstruction result of the targets. Then, the corrupted phase of the Fourier transform of the intensity image in the iterative process, which can improve the stability of the iterative algorithm, is used to reduce the recovery errors, and a better recovery performance is achieved. Finally, several experiments are performed to demonstrate the advantages of the proposed method. © 2016 Beijing Institute of Aerospace Information.

关 键 词：Image reconstruction Iterative methods RADAR Synthetic aperture radar 

分 类 号：TN957.52[电子电信—信号与信息处理]