Title :
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
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;
Conference_Titel :
Radar, 2001 CIE International Conference on, Proceedings
Conference_Location :
Beijing
Print_ISBN :
0-7803-7000-7
DOI :
10.1109/ICR.2001.984808
