Research Papers

Motion error correction approach for high-resolution synthetic aperture radar imaging

[+] Author Affiliations
Gaowei Jia

National University of Defense Technology, College of Electronic Science and Engineering, Changsha 410073, China

Wenge Chang

National University of Defense Technology, College of Electronic Science and Engineering, Changsha 410073, China

Xiangyang Li

National University of Defense Technology, College of Electronic Science and Engineering, Changsha 410073, China

J. Appl. Remote Sens. 8(1), 083664 (Mar 17, 2014). doi:10.1117/1.JRS.8.083664
History: Received October 21, 2013; Revised January 15, 2014; Accepted February 19, 2014
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Abstract.  An innovative data-based motion compensation approach is proposed for the high-resolution synthetic aperture radar (SAR). The main idea is to extract the displacements in line-of-sight direction and the range-dependent phase errors from raw data, based on an instantaneous Doppler rate estimate. The approach is implemented by a two-step process: (1) the correction of excessive range cell migration; (2) the compensation of range-dependent phase errors. Experimental results show that the proposed method is capable of producing high-resolution SAR imagery with a spatial resolution of 0.17×0.2m2 (range×azimuth) in Ku band.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Gaowei Jia ; Wenge Chang and Xiangyang Li
"Motion error correction approach for high-resolution synthetic aperture radar imaging", J. Appl. Remote Sens. 8(1), 083664 (Mar 17, 2014). ; http://dx.doi.org/10.1117/1.JRS.8.083664


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