TWO-DIMENSIONAL NON-UNIFORM FFT FOR IMAGE FORMATION OF HIGH-SQUINT SAR

被引：2
|
作者：
Zhang, Shunsheng [1 ]
Liu, Chan [1 ]
机构：
[1] Univ Elect Sci & Technol China, Res Inst Elect Sci & Technol, Chengdu 611731, Peoples R China
来源：
2014 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2014年
关键词：
high-squint SAR; two-dimensional non-uniform FFT (2D FFT); extended keystone transform (EKT); range cell migration (RCM);
D O I：
10.1109/IGARSS.2014.6946505
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：
The high-resolution imaging for high-squint synthetic aperture radar (SAR) is still a difficult issue due to large range migration and strong range dependence. An extended keystone transform (EKT) is introduced to correct more complex range cell migration and range-variant, then a twodimensional non-uniform fast Fourier transform (2D NUFFT) is proposed to obtain the focused image. Simulation results are given to validate the effectiveness of the method.
引用
收藏
页码：644 / 647
页数：4
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