Title :
Two-step motion compensation of range migration algorithm for airborne spotlight SAR imaging
Author :
Daoxiang, An ; Xiaotao, Huang ; Zhimin, Zhou
Author_Institution :
Sch. of Electr. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
One problem in SAR processing is degradation of the spatial resolution owing to uncorrected motion errors. Several reconstruction algorithms with motion error correction have been developed. In this paper, an efficient motion compensation method via the known motion error information is proposed. The effects of motion error in spotlight SAR imaging by the range migration algorithm (RMA) is analyzed and discussed. And a modified two-step motion compensation method with integrated the RMA algorithm was presented. Some simulated results show the effectiveness of the proposed method.
Keywords :
airborne radar; motion compensation; radar imaging; synthetic aperture radar; airborne spotlight SAR imaging; motion error correction; range migration algorithm; spatial resolution; two-step motion compensation method; Aircraft; Algorithm design and analysis; Analytical models; Computer errors; Degradation; Motion analysis; Motion compensation; Radar polarimetry; Reconstruction algorithms; Spatial resolution; Spotlight SAR; motion compensation; range migration algorithm;
Conference_Titel :
Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on
Conference_Location :
Xian, Shanxi
Print_ISBN :
978-1-4244-2731-4
Electronic_ISBN :
978-1-4244-2732-1
DOI :
10.1109/APSAR.2009.5374165
