INFLUENCE OF TIME SYNCHRONIZATION ERROR ON BISTATIC GEO SAR IMAGING

被引：0
|
作者：
Zhang, Wentao [1 ,2 ]
Dong, Xichao [1 ]
Chen, Zhiyang [1 ,3 ]
Hu, Cheng [1 ]
机构：
[1] Beijing Inst Technol, Sch Informat & Elect, Beijing 100081, Peoples R China
[2] Minist Educ, Beijing Inst Technol, Key Lab Elect & Informat Technol Satellite Nav, Beijing 100081, Peoples R China
[3] Beijing Inst Technol, Adv Technol Res Inst, Jinan 250300, Peoples R China
来源：
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022) | 2022年
基金：
中国国家自然科学基金;
关键词：
Geosynchronous Synthetic Aperture Radar (GEO SAR); time synchronization; bistatic SAR;
D O I：
10.1109/IGARSS46834.2022.9883105
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
The errors of time and frequency synchronization in bistatic synthetic aperture radar (SAR) can have serious impacts on SAR images, if not compensated well. In this paper, we analyze the influence of time synchronization error on bistatic geosynchronous SAR (GEO SAR) imaging. First, the GEO SAR echo signal model under the influence of time synchronization error is established, through which the impacts of the constant, linear and random time synchronization errors on imaging are analyzed theoretically. Second, the theoretical analyses were verified by simulations. In addition, through simulations, the influences of the time synchronization error on low earth orbit SAR (LEO SAR) and GEO SAR are compared. The results show that the impacts of the constant, linear and random terms on GEO SAR are the same, greater and slighter compared with those on LEO SAR, respectively. This study provides a theoretical basis for future research on the time synchronization technology of multistatic GEO SAR.
引用
收藏
页码：1856 / 1859
页数：4
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