Improved Wideband Beamforming Algorithm Based on Microphone Arrays

被引：0

作者：

Yang, Ling-jun ^{[1
,3
]}

Sun, Hong ^{[1
]}

Liu, Dong ^{[2
]}

Han, Gu-jing ^{[3
]}

机构：

[1] Wuhan Univ, Signal Proc Lab, Sch Elect Informat, Wuhan 430072, Hubei, Peoples R China

[2] PLA Acad Commun Command, Wuhan, Peoples R China

[3] Wuhan Univ, Sch Elect Engn, Elect Informat Lab, Wuhan, Peoples R China

来源：

2008 INTERNATIONAL CONFERENCE ON COMMUNICATIONS, CIRCUITS AND SYSTEMS PROCEEDINGS, VOLS 1 AND 2: VOL 1: COMMUNICATION THEORY AND SYSTEM | 2008年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, the wideband beamforming based on microphone arrays(MA) is investigated. This method combined the technologies of frequency focusing and sub-band partitioning. The frequency focusing algorithm is to focus the wideband signals to the narrowband signals at the reference frequency. But this algorithm only applies for the signals with fractional bandwidth less than 1.25. The improved focusing algorithm divides the frequency band of signals into several sub-bands to decrease the fractional bandwidth. It reduces the computational complexity without loss of focus error.

引用

页码：1055 / 1058

页数：4

共 5 条

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[4] JU TL, 2006, THESIS, P75
[5] Microphone arrays for hearing aids: An overview
Widrow, B
Luo, FL
[J]. SPEECH COMMUNICATION, 2003, 39 (1-2) : 139 - 146

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