一种改进的PGA最大似然相位估计法

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2003, Vol. 24 ›› Issue (6): 537-540.

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A Modified PGA ML Phase Estimation Method

Zhong Rui, Mao Shi-yi

Faculty 203; Beijing University of Aeronautics and Astronautics; Beijing 100083; China

Received:2002-11-13 Revised:2003-02-20 Online:2003-12-25 Published:2003-12-25

Abstract

Abstract: The method of phase estimation in SAR motion compensation is presented, which, based on the eigen-vector method, eliminates the solution of eigen2values and the corr espondence eigen-vectors. Some compar isons hasbeen made with the tradit ional eigen-vector method on operation intensity and processing pr ecision. The results indicate that this iterated phase est imator is pr actical in SAR autofocus procedure.

Key words: SAR, autofocus, PGA, ML, eigenvector

CLC Number:

TN957.52

Zhong Rui;Mao Shi-yi. A Modified PGA ML Phase Estimation Method[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2003, 24(6): 537-540.

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A Modified PGA ML Phase Estimation Method

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