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SNR estimation method for colored-noise environments based on two-channel

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4 Author(s)
Bai Danping ; Dept. of Electronic Engineering, University of Electronic Science & Technology of China, No.4 Section 2, North Jianshe Rd., Chengdu, Sichuan, 610054, China ; Wan Qun ; Wang Yan ; Jiang Jin

In additive white Gaussian noise (AWGN) environments, signal-to-noise ratio (SNR) estimation can be easily obtained since the noise spectrum density is flat. However, the performance is degenerate when the noise is colored. A novel SNR estimation method based on two-channel model for colored-noise environments is proposed. We use the phase information from the two-channel model to obtain the signal bandwidth and calculate the signal energy in this bandwidth. Hence, the SNR can be estimated in colored-noise environments. The simulation shows that the novel method performs better than the method reported for colored- noise environments.

Published in:

TENCON 2007 - 2007 IEEE Region 10 Conference

Date of Conference:

Oct. 30 2007-Nov. 2 2007