A novel sparse SAR unambiguous imaging method based on mixed-norm optimization  

作　　者：Hui BI Yufan SONG Yanjie YIN Jingjing ZHANG Wen HONG Yirong WU 

机构地区：[1]College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [2]Key Laboratory of Radar Imaging and Microwave Photonics,Ministry of Education,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China [3]Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China

出　　处：《Science China(Information Sciences)》2023年第11期303-304,共2页中国科学（信息科学）（英文版）

基　　金：supported by National Natural Science Foundation of China(Grant Nos.62271248,61901213);Guangdong Basic and Applied Basic Research Foundation(Grant No.2020B1515120060)。

摘　　要：Sparse synthetic aperture radar(SAR)systems always obtain a wide swath by reducing the pulse repetition frequency(PRF).However,the reduction of PRF will cause azimuth ambiguity,and even lead to failed reconstruction of the observation scenes in SAR imaging because traditional sparse SAR imaging models do not consider the azimuth ambiguity terms and cannot effectively suppress ambiguity.

关 键 词：SAR PRF AMBIGUITY 

分 类 号：TN957.52[电子电信—信号与信息处理]