A synthetic bandwidth method based on frequency-domain back projection for stepped-frequency SAR

被引：8
|
作者：
Hu, Kebin [1 ]
Zhang, Xiaoling [1 ]
Shi, Jun [1 ]
Wei, Shunjun [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu, Peoples R China
来源：
REMOTE SENSING LETTERS | 2017年 / 8卷 / 08期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
ALGORITHM; BP;
D O I：
10.1080/2150704X.2017.1317931
中图分类号：
TP7 [遥感技术];
学科分类号：
081102 ; 0816 ; 081602 ; 083002 ; 1404 ;
摘要：
For the drawbacks of the synthetic bandwidth method based on time-domain back projection, a novel synthetic bandwidth method based on frequency-domain back projection is proposed in this article for stepped-frequency synthetic aperture radar to improve the computation efficiency and to realize the automatic spatial spectra cutting. To give a direct and clear comprehension for wideband synthesizing in the spatial image space, the bandwidth and centre frequency for spatial image are defined for the first time. The simulation results validate the effectiveness of the proposed method.
引用
收藏
页码：743 / 751
页数：9
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