Partial Aperture Effect-Free Doppler Centroid Estimation Method for Airborne Side-looking SAR Based on Range-Doppler Domain Contrast Minimization

Author

Yu Mingcheng ; Xu Jia ; Peng Yingning ; Wang Xiutan

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

Volume

4

fYear

2006

fDate

16-20 Nov. 2006

Abstract

Based on the statistical property of the range migration (RM) in the synthetic aperture radar (SAR) range compressed range-Doppler (RD) domain, a Doppler centroid estimation method for SAR is proposed. The method can mitigate the partial aperture effect (PAE) which seriously degrades the estimation accuracy of the traditional Doppler estimators for high contrast scenes. Experimental results with real data of airborne high resolution SAR support the application of the proposed method to practical SAR processing.

Keywords

Doppler radar; airborne radar; minimisation; synthetic aperture radar; Doppler centroid estimation; Doppler domain contrast minimization; SAR processing; airborne side-looking SAR; partial aperture effect; range migration; synthetic aperture radar; Azimuth; Bandwidth; Doppler radar; Frequency estimation; Layout; Maximum likelihood estimation; Minimization methods; Radar antennas; Synthetic aperture radar; Trajectory;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, 2006 8th International Conference on

Conference_Location

Beijing

Print_ISBN

0-7803-9736-3

Electronic_ISBN

0-7803-9736-3

Type

conf

DOI

10.1109/ICOSP.2006.346007

Filename

4129699