应用于洋流探测的改进MUSIC方法

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Improved MUSIC method for detection of currents

AN Zhi-juan(1,2);SU Hong-tao(1);BAO Zheng(1)

(1) Key Lab. of Radar Signal Processing, Xidian Univ., Xi′an 710071， China
(2) School of Science, Xidian Univ., Xi′an 710071， China

Received:1900-01-01 Revised:1900-01-01 Online:2006-02-20 Published:2006-02-20

Abstract

Abstract: In this paper the conventional MUSIC method is modified to estimate the direction of arrival (DOA) of ocean currents, i.e., performing Toeplitzization on the array covariance matrix before implementing the MUSIC method. Theoretical analysis and simulation show that this process can reduce the effect of correlation between signals, and can therefore improve the performance of estimation remarkably. Finally by analyzing the measured data, it is shown that the improved method can detect the currents more effectively.

Key words: current, correlation, Multiple Signal Classifcation(MUSIC), Toeplitzization

CLC Number:

TN958.53

AN Zhi-juan(1;2);SU Hong-tao(1);BAO Zheng(1).

Improved MUSIC method for detection of currents

[J].J4, 2006, 33(1): 138-141.

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Improved MUSIC method for detection of currents

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