Papers

Optimum beamformer in correlated source environments

International Journal
2006~2010
작성자
이진영
작성일
2006-12-01 13:26
조회
228
Authors : Seungil Kim, Chungyong Lee, Hong-Goo Kang

Year : 2006

Publisher / Conference : Journal of Acoustical Society of America

Volume : 120, issue 6

A new method for overcoming signal cancellation problems due to correlated interferences which occur in a minimum variance distortionless response beamformer is proposed. Instead of decorrelating the correlated interferences, the coherently combining signal-to-interference plus noise ratio (CC-SINR) beamformer regards them as replicas of the desired signal and coherently combines them with the desired signal. This method uses an eigenvector constraint that suppresses only noise and uncorrelated interferences but retains the desired signal and correlated interferences. The CC-SINR beamformer does not require any preliminary information on correlated interferences. The signal-to-interference plus noise ratio (SINR) of the proposed beamformer output was compared to that of a conventional SINR beamformer when correlated interference, uncorrelated interference, and white noise exist. In addition, various key parameters that affect the performance of the beamformer, such as signal-to-noise ratio, uncorrelated interference-to-noise ratio, angular separation between signals, attenuation factor, phase delay of correlated interference, and the number of sensors were analyzed. All of the experimental results were in good agreement with the analytical results.
전체 329
12 International Journal Chulhan Lee, Jeung-Yoon Choi, Kar-Ann Toh, Sangyoun Lee "Alignment-Free Cancelable Fingerprint Templates Based on Local Minutiae Information" in IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics), vol.37, issue 4, pp.980-992, 2007
11 International Journal Kyung Tae Kim, Jeung-Yoon Choi, Hong-Goo Kang "Perceptual relevance of the temporal envelope to the speech signal in the 4–7kHz band" in The Journal of the Acoustical Society of America, vol.122, issue 3, 2007
10 International Journal Chang-Heon Lee, Sung-Kyo Jung, Hong-Goo Kang "Applying A Speaker-dependent Speech Compression Technique to Concatenative TTS Synthesizers" in IEEE Transactions on Audio, Speech, and Language Processing, vol.15, 2, pp.632-640, 2007
9 International Journal Seungil Kim, Chungyong Lee, Hong-Goo Kang "Optimum beamformer in correlated source environments" in Journal of Acoustical Society of America, vol.120, issue 6, 2006
8 International Journal Kyoung Ho Bang, Young-Cheol Park, Jeongil Seo "Audio Transcoding for Audio Streams from a T-DTV Broadcasting Station to a T-DMB Receiver" in ETRI Journal, vol.28, issue5, pp.664-667, 2006
7 International Journal Ken Chen, Mark Hasegawa-johnson, Aaron Cohen, Sarah Borys, Sung-Suk Kim, Jennifer Cole, Jeung-Yoon Choi "Prosody dependent speech recognition on radio news corpus of American English" in IEEE Transactions on Audio, Speech, and Language Processing, vol.14, issue 1, pp.232-245, 2006
6 International Journal Jeung-Yoon Choi, Mark Hasegawa-Johnson, Jennifer Cole "Finding intonational boundaries using acoustic cues related to the voice source" in The Journal of the Acoustical Society of America, vol.118, issue 4, 2005
5 International Journal Mark Hasegawa-Johnson, Ken Chen, Jennifer Cole, Sarah Borys, Sung-Suk Kim, Aaron Cohen, Tong Zhang, Jeung-Yoon Choi, Heejin Kim, Taejin Yoon, Sandra Chavarria "Simultaneous recognition of words and prosody in the Boston University Radio Speech Corpus" in Speech Communication, vol.46, issue 3-4, pp.418-439, 2005
4 International Journal Thomas Eriksson, Samuel Kim, Hong-Goo Kang, Chungyong Lee "An information-theoretic perspective on feature selection in speaker recognition" in IEEE Signal Processing Letter, vol.12, issue 7, pp.500 - 503, 2005
3 International Journal Yang-Won Jung, Hong-Goo Kang, Chungyong Lee, Dae Hee Youn, Changkyu Choi, Jaywoo Kim "Adaptive Microphone Array System with Two-Stage Adaptation Mode Controller" in IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences, vol.E88-A, pp.972-977, 2005