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

被引：5

作者：

Zhang Yuan ^{[1
]}

Zhang Qiming ^{[1
]}

Wang Yanping ^{[1
]}

Lin Yun ^{[1
]}

Li Yang ^{[1
]}

Bai Zechao ^{[1
]}

Li Fang ^{[2
]}

机构：

[1] North China Univ Technol, Sch Informat Sci & Technol, Beijing 100144, Peoples R China

[2] Chinese Acad Sci, Quanzhou Inst Equipment Mfg, Haixi Inst, Jinjiang 362200, Peoples R China

来源：

JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS | 2020年 / 31卷 / 04期

基金：

北京市自然科学基金; 中国国家自然科学基金;

关键词：

ground-based synthetic aperture radar (GB-SAR); high squint; multi-angle; RADAR;

D O I：

10.23919/JSEE.2020.000047

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

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.

引用

页码：722 / 733

页数：12

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