Title :
Comparison of Doppler centroid estimation methods in SAR
Author :
Yu, Weidong ; Zhu, Zhaoda
Author_Institution :
Dept. of Electron. Eng., Nanjing Univ. of Aeronomy & Astron., China
Abstract :
This paper compares five Doppler centroid estimation methods which are: energy balancing, matched-correlation maximum likelihood, correlation Doppler estimator (CDE) and sign Doppler estimator (SDE). Their estimation performances in raw data domain and image domain are studied. The computer simulation results are presented. ERS-1 raw data are also used to test the performances of every method
Keywords :
Doppler radar; correlation methods; parameter estimation; radar imaging; radar signal processing; radar theory; synthetic aperture radar; Doppler centroid estimation; SAR; computer simulation; correlation Doppler estimator; energy balancing; image domain; matched-correlation maximum likelihood; sign Doppler estimator; synthetic aperture radar; Azimuth; Computer simulation; Doppler radar; Frequency estimation; Maximum likelihood estimation; Pattern matching; Performance evaluation; Radar imaging; Synthetic aperture radar; Testing;
Conference_Titel :
Aerospace and Electronics Conference, 1997. NAECON 1997., Proceedings of the IEEE 1997 National
Conference_Location :
Dayton, OH
Print_ISBN :
0-7803-3725-5
DOI :
10.1109/NAECON.1997.622769
