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Compressing Sensing Based Source Localization for Controlled Acoustic Signals Using Distributed Microphone Arrays
Joint Authors
Ke, Wei
Zhang, Xiunan
Yuan, Yanan
Shao, Jianhua
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-08
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
In order to enhance the accuracy of sound source localization in noisy and reverberant environments, this paper proposes an adaptive sound source localization method based on distributed microphone arrays.
Since sound sources lie at a few points in the discrete spatial domain, our method can exploit this inherent sparsity to convert the localization problem into a sparse recovery problem based on the compressive sensing (CS) theory.
In this method, a two-step discrete cosine transform- (DCT-) based feature extraction approach is utilized to cover both short-time and long-time properties of acoustic signals and reduce the dimensions of the sparse model.
In addition, an online dictionary learning (DL) method is used to adjust the dictionary for matching the changes of audio signals, and then the sparse solution could better represent location estimations.
Moreover, we propose an improved block-sparse reconstruction algorithm using approximate l0 norm minimization to enhance reconstruction performance for sparse signals in low signal-noise ratio (SNR) conditions.
The effectiveness of the proposed scheme is demonstrated by simulation results and experimental results where substantial improvement for localization performance can be obtained in the noisy and reverberant conditions.
American Psychological Association (APA)
Ke, Wei& Zhang, Xiunan& Yuan, Yanan& Shao, Jianhua. 2017. Compressing Sensing Based Source Localization for Controlled Acoustic Signals Using Distributed Microphone Arrays. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1189723
Modern Language Association (MLA)
Ke, Wei…[et al.]. Compressing Sensing Based Source Localization for Controlled Acoustic Signals Using Distributed Microphone Arrays. Mathematical Problems in Engineering No. 2017 (2017), pp.1-11.
https://search.emarefa.net/detail/BIM-1189723
American Medical Association (AMA)
Ke, Wei& Zhang, Xiunan& Yuan, Yanan& Shao, Jianhua. Compressing Sensing Based Source Localization for Controlled Acoustic Signals Using Distributed Microphone Arrays. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-11.
https://search.emarefa.net/detail/BIM-1189723
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1189723