Spherical Microphone Array for Spatial Sound Localization for a Mobile Robot

被引：0
|
作者：
Sasaki, Yoko [1 ]
Kabasawa, Mitsutaka [1 ]
Thompson, Simon [1 ]
Kagami, Satoshi [1 ]
Oro, Kyoichi [2 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Digital Human Res Ctr, Koto Ku, 2-3-26 Aomi, Tokyo 1350064, Japan
[2] Kansai Elect Power Co Inc, Amagasaki, Hyogo, Japan
来源：
2012 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS) | 2012年
关键词：
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The present paper introduces a microphone array design and describes the results of an evaluation of the developed microphone array. We propose an evaluation index of the directional characteristics of beamforming to optimize microphone array design. Using beamforming simulation, we obtain a microphone arrangement that minimizes sidelobes and improves the basic performance of beamforming. This microphone arrangement has 64 microphones arranged in a 350-mm-diameter sphere designed to be mounted on a mobile robot and omni-directional directivity in azimuth and elevation. The performance of the proposed microphone array is verified in different real environments. The experimental results of sound localization demonstrate the effectiveness of the array in challenging environments and the robustness of the proposed microphone array for different pressure sound sources to cover larger areas.
引用
收藏
页码：713 / 718
页数：6
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