An Autofocus Imaging Method of One-Stationary Bistatic Synthetic Aperture Radar

被引：0
|
作者：
Chen, Leping [1 ]
An, Daoxiang [1 ]
Huang, Xiaotao [1 ]
机构：
[1] Natl Univ Def Technol, Coll Elect Sci & Technol, Changsha, Peoples R China
来源：
CONFERENCE PROCEEDINGS OF 2019 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, COMMUNICATIONS AND COMPUTING (IEEE ICSPCC 2019) | 2019年
关键词：
One-Stationary; BiSAR; autofocus;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Since the trajectory deviations of the platform cause serious phase errors that degrade the focusing quality of synthetic aperture radar (SAR) imagery, an autofocus method is important for airborne SAR imaging. When it comes to one-stationary bistatic SAR (OS-BiSAR), autofocus problems become more complicated. Traditional autofocus methods make the assumption that a Fourier transforms relationship exists between the image domain and the range-compressed phase history domain, which is invalid in OS-BiSAR imaging. Based on maximum image sharpness criterion, an autofocus backprojection method is proposed. Its performance has been demonstrated by using the P-band airborne BiSAR experimental data.
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页数：4
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