Paper Abstract and Keywords |
Presentation |
2006-06-23 14:35
A New Robust Adaptation Mode Controller based on a Normalized Cross-Correlation with Multiple Symmetric Leaky Blocking Matrices for Adaptive Microphone Arrays Akihiko Sugiyama, Thanh Phong Hua (NEC), Regine Le Bouquin Jeannes, Gerard Faucon (U de Rennes) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper proposes an adaptation mode controller (AMC) based on a normalized cross-correlation with multiple symmetric leaky blocking matrices (SLBMs) for adaptive microphone arrays. Robust and wideband estimation of a signal-to-interference ratio (SIR) is performed by the use of multiple pairs of SLBMs. The SIR estimate is compared to theoretical thresholds to evaluate target-interference proportion for controlling filter-coefficient adaptation in the adaptive path of the beamformer. A design method for SLBMs is developed and a design example is demonstrated. Phase differences between the outputs of the paired SLBMs are analyzed to show their desirable responses. Evaluations with recorded signals show that the proposed AMC achieves better scrimination between speech-dominant and interference-dominant sections, resulting in desirable control of coefficient adaptation in the microphone array and a better output. The better output signal of the microphone array provides a higher speech recognition rate by as much as 11\% than the conventional AMC. The increased computations are shown to be negligible. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Microphone array / adaptation control / normalized cross-correlation / symmetric / leaky blocking matrix / / / |
Reference Info. |
IEICE Tech. Rep., vol. 106, no. 116, SIP2006-40, pp. 55-60, June 2006. |
Paper # |
SIP2006-40 |
Date of Issue |
2006-06-16 (CAS, VLD, SIP) |
ISSN |
Print edition: ISSN 0913-5685 |
Download PDF |
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Conference Information |
Committee |
SIP CAS VLD |
Conference Date |
2006-06-22 - 2006-06-23 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kitami Institute of Technology |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Signal Processing, LSI, etc |
Paper Information |
Registration To |
SIP |
Conference Code |
2006-06-SIP-CAS-VLD |
Language |
English |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A New Robust Adaptation Mode Controller based on a Normalized Cross-Correlation with Multiple Symmetric Leaky Blocking Matrices for Adaptive Microphone Arrays |
Sub Title (in English) |
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Keyword(1) |
Microphone array |
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adaptation control |
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normalized cross-correlation |
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symmetric |
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leaky blocking matrix |
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1st Author's Name |
Akihiko Sugiyama |
1st Author's Affiliation |
NEC Corporation (NEC) |
2nd Author's Name |
Thanh Phong Hua |
2nd Author's Affiliation |
NEC Corporation (NEC) |
3rd Author's Name |
Regine Le Bouquin Jeannes |
3rd Author's Affiliation |
Universite de Rennes (U de Rennes) |
4th Author's Name |
Gerard Faucon |
4th Author's Affiliation |
Universite de Rennes (U de Rennes) |
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Speaker |
Author-2 |
Date Time |
2006-06-23 14:35:00 |
Presentation Time |
25 minutes |
Registration for |
SIP |
Paper # |
CAS2006-17, VLD2006-30, SIP2006-40 |
Volume (vol) |
vol.106 |
Number (no) |
no.112(CAS), no.114(VLD), no.116(SIP) |
Page |
pp.55-60 |
#Pages |
6 |
Date of Issue |
2006-06-16 (CAS, VLD, SIP) |