An approach to wide-field imaging of linear rail ground-based SAR in high squint multi-angle mode

查看全文 作　　者：ZHANG [1]Yuan;ZHANG [1]Qiming;WANG [1]Yanping;LIN [1]Yun;LI [1]Yang;BAI [1]Zechao;LI [2]Fang

机构地区：[1]School of Information Science and Technology,North China University of Technology,Beijing 100144,China;[2]Quanzhou Institute of Equipment Manufacturing,Haixi Institutes,Chinese Academy of Sciences,Jinjiang 362200,China

出　　处：《Journal of Systems Engineering and Electronics》索引2020年第31卷第4期,共12页

基　　金：supported by the National Natural Science Foundation of China(61801007);the Beijing Natural Science Foundation(4194075)。 摘　　要：Ground-based synthetic aperture radar(GB-SAR) has been successfully applied to the ground deformation monitoring.However, due to the short length of the GB-SAR platform, the scope of observation is largely limited. The practical applications drive us to make improvements on the conventional linear rail GB-SAR system in order to achieve larger field imaging. First, a turntable is utilized to support the rotational movement of the radar.Next, a series of high-squint scanning is performed with multiple squint angles. Further, the high squint modulation phase of the echo data is eliminated. Then, a new multi-angle imaging method is performed in the wave number domain to expand the field of view. Simulation and real experiments verify the effectiveness of this method. 关键词：ground-based synthetic aperture radar(GB-SAR) high squint multi-angle

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An approach to wide-field imaging of linear rail ground-based SAR in high squint multi-angle mode

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