The study on Doppler centroid estimation in DBS imaging

Author

Sun, Hongbo ; Gu, Hong ; Su, Weimin ; Liu, GuoSui

Author_Institution

Res. Center of Electron. Eng. Technol., Nanjing Univ. of Sci. & Technol., China

fYear

2001

fDate

2001

Firstpage

679

Lastpage

682

Abstract

Doppler centroid estimation is one of the most important steps in Doppler beam sharpen (DBS) imaging of airborne pulse Doppler radar. Two improved Doppler centroid estimation techniques are proposed. They are called the weighted pattern match technique (WPMT) and curve fitting iterative technique (CFIT) respectively. These new algorithms avoid the effects of non-homogeneous scene and random fluctuation of echoes. The precision of the estimation is improved significantly. The processing results of raw radar data prove their effectivity

Keywords

Doppler radar; airborne radar; curve fitting; iterative methods; parameter estimation; pattern matching; radar cross-sections; radar imaging; DBS imaging; Doppler beam sharpen imaging; Doppler centroid estimation; airborne pulse Doppler radar; curve fitting iterative technique; estimation precision; radar data processing; weighted pattern match technique; Azimuth; Curve fitting; Doppler radar; Fluctuations; Iterative algorithms; Layout; Pattern matching; Radar imaging; Satellite broadcasting; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar, 2001 CIE International Conference on, Proceedings

Conference_Location

Beijing

Print_ISBN

0-7803-7000-7

Type

conf

DOI

10.1109/ICR.2001.984808

Filename

984808