NDLI: A modified cross power-spectrum phase method based on microphone array for acoustic source localization

Content Provider	IEEE Xplore Digital Library
Author	Miao Shen Hong Liu
Copyright Year	2009
Description	Author affiliation: National Laboratory on Machine Perception, Peking University, Beijing, China (Miao Shen; Hong Liu)
Abstract	The cross power-spectrum phase (CSP) method plays an important role in time delay estimate due to its efficiency in acoustic source localization. Generally, impacted by the spatial noise and reverberation in a room, the positioning accuracy could be greatly enhanced. However, this method could hardly lead to results when the energy of signal is small. In this paper, a new method is proposed: covariance matrix that from the multi-channel signals were applied and the characteristic of the coherent function was employed. Experiments under various conditions were carried out to demonstrate the new method's novelty, including adding background music to simulate the real environments. The 240 groups' data we achieved reached localization accuracy of 97.5% in normal experiments. We also obtained 85.42% and 83.75% correct rate in low and strongly musical environments, respectively.
Starting Page	1286
Ending Page	1291
File Size	198596
Page Count	6
File Format	PDF
ISBN	9781424427932
ISSN	1062922X
DOI	10.1109/ICSMC.2009.5345918
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phased arrays Microphone arrays Acoustic arrays Delay estimation Working environment noise Delay effects Reverberation Adaptive filters Coherence Acoustic noise
Content Type	Text
Resource Type	Article

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