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所属单位：电子信息工程学院
发表刊物：APPLIED ACOUSTICS
关键字：DOA estimation Differential microphone array Sound intensity
摘要：Sound source DOA estimation using first-order differential microphone arrays (DMAs) has been demonstrated as a promising means for the applications where the size of arrays is restricted. The existing methods for DOA estimation of multiple speech sources with first-order DMAs, however, are shown sensitive to noise and room reverberation. To combat the problem, we propose a DOA estimation algorithm by exploring the redundancies of two orthogonal first-order DMAs in sound intensity measurement. In particular, the reliable time-frequency points for DOA estimation can be effectively singled out by the proposed algorithm and thus leads to better DOA estimation performance in noisy and reverberant environments. Moreover, the proposed algorithm has a closed form solution, and no time-consuming search process over spatial space is required. Simulation and real experimental results have demonstrated the effectiveness of the proposed algorithm. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN号：0003-682X
是否译文：否
发表时间：2017-12-01
合写作者：Ding, Shaowei
通讯作者：陈华伟