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

fYear

2012

fDate

16-17 July 2012

Firstpage

377

Lastpage

380

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Imaging Systems and Techniques (IST), 2012 IEEE International Conference on

Conference_Location

Manchester

Print_ISBN

978-1-4577-1776-5

Type

conf

DOI

10.1109/IST.2012.6295562

Filename

6295562