AN OMEGA-K IMAGING ALGORITHM FOR TRANSLATIONAL INVARIANT BISTATIC FMCW SAR

被引：0
|
作者：
Bao, Yi [1 ]
Li, Zhongyu [1 ]
Wu, Junjie [1 ]
Huang, Yulin [1 ]
Yang, Jianyu [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 611731, Sichuan, Peoples R China
来源：
2014 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2014年
关键词：
Translational Invariant; Bistatic Frequency-modulated Continuous-wave Synthetic Aperture Radar; Generalized Loffeld's bistatic formula; Omega-k algorithm; Stolt transformation;
D O I：
10.1109/IGARSS.2014.6947063
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 combination of frequency-modulated continuous-wave (FMCW) technology and bistatic synthetic aperture radar (SAR) promises a small, light-weight, cost-effective and high-resolution remote sensing system. In this paper, an Omega-k imaging algorithm based on linearization theory to focus the raw data of translational invariant (TI) bistatic FMCW SAR is proposed. This method utilizes a bistatic point target reference spectrum (BPTRS) of generalized Loffeld's bistatic formula (GLBF), where the motion during the long signal duration time is taken into account. The proposed BPTRS significantly simplify the TI bistatic FMCW SAR processing. Based on the spatial linearization of GLBF, the Stolt transformation is further derived. Finally, simulation experiments are carried out to verify the effectiveness of the proposed method.
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页数：4
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