Title :
High resolution imaging with airborne MIMO-SAR
Author :
Peng, Faxiang ; Li, Hongwei ; Cai, Bin ; Deng, Donghu
Author_Institution :
Telecommun. Eng. Inst., AFEU, Xi´´an, China
Abstract :
This paper describes a modified MIMO-SAR ω-k algorithm integrating with motion compensation to achieve high resolution. Firstly, a model of motion error for airborne MIMO-SAR system was established. Then improved Stolt-mapping was proposed to separate Range Cell Migration Correction (RCMC) and azimuth focus, and the motion error was corrected by two steps of compensation. Finally, sub-bands were combined into a whole band in spatial-frequency domain to obtain high range resolution. Simulation examples are provided to verify the validity of the method.
Keywords :
MIMO radar; airborne radar; radar imaging; synthetic aperture radar; MIMO-SAR ω-k algorithm; RCMC; airborne MIMO-SAR; high resolution imaging; range cell migration correction; spatial-frequency domain; Azimuth; Bandwidth; Equations; Motion compensation; Radar imaging; Spatial resolution; ω-k Algorithm; High Resolution; Motion Compensation; Multiple-Input Multiple-Output (MIMO); Synthetic Aperture Radar (SAR);
Conference_Titel :
Radar (Radar), 2011 IEEE CIE International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8444-7
DOI :
10.1109/CIE-Radar.2011.6159677
