Moving target parameter estimation of spaceborne SAR-GMTI based on the analysis of acceleration

Author

Xia Meng ; Yang xiao-niu

Author_Institution

Sch. of Commun. Eng., Xidian Univ., Xi´an, China

Volume

2

fYear

2011

fDate

24-27 Oct. 2011

Firstpage

1242

Lastpage

1246

Abstract

Aiming at the influence of fast moving target with acceleration in imaging and parameter estimation, a novel method for moving target detection and parameter estimation with three-channel is proposed. After the moving target echo is analyzed, the general two-order keystone transform is applied to eliminate range curve for clutter suppression result. Time-frequency analysis is employed to construct phase compensation function and correct the residual range walk. Finally, azimuth Fourier transform is performed to get the image. Moving target parameters can be obtained by the interferometric processing technology. Simulation results show the validity of the method.

Keywords

echo suppression; parameter estimation; radar clutter; radar interferometry; synthetic aperture radar; time-frequency analysis; acceleration analysis; azimuth Fourier transform; clutter suppression; fast moving target; interferometric processing technology; moving target echo; moving target parameter estimation; parameter estimation; phase compensation function; spaceborne SAR-GMTI; synthetic aperture radar; time-frequency analysis; two-order keystone transform; Acceleration; Azimuth; Clutter; Doppler effect; Parameter estimation; Time frequency analysis; Transforms; Keystone Transform; Moving Target Detection; Parameter Estimation; Synthetic Aperture Radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar (Radar), 2011 IEEE CIE International Conference on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-8444-7

Type

conf

DOI

10.1109/CIE-Radar.2011.6159781

Filename

6159781