Title :
Error analysis of SAR motion compensation
Author :
Mao, Yongfei ; Xiang, Maosheng ; Wei, Lideng ; Li, Yinwei ; Hong, Wen
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Microwave Imaging, Inst. of Electron., Beijing, China
Abstract :
During Synthetic Aperture Radar (SAR) motion compensation processing, the residual uncompensated motion errors may degrade SAR images, and these errors mainly result from the positioning inaccuracies of the track and target. By analyzing SAR motion compensation method and the effect of the track and target positioning inaccuracies, this paper presents a model to calculate the residual uncompensated motion errors. According to the model, the residual errors mainly depend on the slant range error, Doppler centroid error, and the target height error. The computed results by the proposed model accord closely with the actual image quality.
Keywords :
error analysis; motion compensation; synthetic aperture radar; Doppler centroid error; SAR; error analysis; image quality; motion compensation processing; residual uncompensated motion errors; slant range error; synthetic aperture radar; target height error; target positioning; track positioning; Azimuth; Global Positioning System; Imaging; Motion compensation; Radar tracking; Synthetic aperture radar; Target tracking; Synthetic Aperture Radar (SAR); imaging; motion compensation; phase error;
Conference_Titel :
Imaging Systems and Techniques (IST), 2012 IEEE International Conference on
Conference_Location :
Manchester
Print_ISBN :
978-1-4577-1776-5
DOI :
10.1109/IST.2012.6295562
