A REFINED CHIRP SCALING ALGORITHM FOR HIGH-RESOLUTION SPACEBORNE SAR BASED ON THE FOURTH-ORDER MODEL

被引：2
|
作者：
Wang, Pengbo [1 ]
Han, Yu [1 ]
Chen, Jie [1 ]
Cui, Zhongma [2 ]
Yang, Wei [1 ]
Li, Shuang [1 ]
机构：
[1] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China
[2] Beijing Inst Remote Sensing Equipment, Beijing 100039, Peoples R China
来源：
2013 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2013年
关键词：
synthetic aperture radar; equivalent squint range model; fourth-order slant range model; CS algorithm; high-resolution space-borne SAR;
D O I：
10.1109/IGARSS.2013.6723214
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
With the resolution of SAR developing continually, it is found that in the process of image processing, using equivalent squint range model would bring large phase error. So using traditional CS algorithm for processing will encounter difficulties. In order to solve this problem because of unsuitable slant range model, this paper introduces the fourth-order slant range model to replace the original model, and conducts a study on CS algorithm based on the fourth-order slant range model. This paper introduces the theoretical formulation and simulation results of the new algorithm. This algorithm can perform well for both low-resolution space-borne SAR and high-resolution space-borne SAR.
引用
收藏
页码：2051 / 2054
页数：4
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