色噪声环境下的快速DOA估计算法

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A novel method for estimating DOA in the presnece of unknown colored noise fields

CHEN Jian-feng1;WU Yun-tao1;ZHANG Xian-da2

(1. Key Lab. of Radar Signal Processing, Xidian Univ., Xi'an 710071, China;
2. Dept. of Automation, Tsinghua Univ., Beijing 100084, China)

Received:1900-01-01 Revised:1900-01-01 Online:2003-04-20 Published:2003-04-20

Abstract

Abstract: a new method for estimating spatial narrow-band signal directions of arrival in the presence of colored noise with unknown covariance is presented. A transform-based covariance differencing approach is given, thus overcoming the highly biased estimates. Without the eigendecomposition of the transformed data matrix, its advantage consists in a computational complexity reduced by the ratio of the number of sources to teh number of sensors. Finally, its performance is confirmed by computer simulations.

Key words: array signal processing, colored noise, DOA estimate

CLC Number:

TN957.52

CHEN Jian-feng1;WU Yun-tao1;ZHANG Xian-da2.

A novel method for estimating DOA in the presnece of unknown colored noise fields

[J].J4, 2003, 30(2): 151-154.

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A novel method for estimating DOA in the presnece of unknown colored noise fields

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