標題: Simultaneous Localization of Mobile Robot and Multiple Sound Sources Using Microphone Array
作者: Hu, Jwu-Sheng
Chan, Chen-Yu
Wang, Cheng-Kang
Wang, Chieh-Chih
電控工程研究所
Institute of Electrical and Control Engineering
公開日期: 2009
摘要: Sound source localization is an important function in robot audition. The existing works perform sound source localization using static microphone arrays. This work proposes a framework that simultaneously localizes the mobile robot and multiple sound sources using a microphone array on the robot. First, an eigenstructure-based generalized cross correlation method for estimating time delays between microphones under multi-source environments is described. A method to compute the far field source directions as well as the speed of sound using the estimated time delays is proposed. In addition, the correctness of the sound speed estimate is utilized to eliminate spurious sources, which greatly enhances the robustness of sound source detection. The arrival angles of the detected sound sources are used as observations in a bearings-only SLAM procedure. As the source signals are not persistent and there is no identification of the signal content, data association is unknown which is solved using FastSLAM. The experimental results demonstrate the effectiveness of the proposed approaches.
URI: http://hdl.handle.net/11536/16291
ISBN: 978-1-4244-2788-8
ISSN: 1050-4729
期刊: ICRA: 2009 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION, VOLS 1-7
起始頁: 4004
結束頁: 4009
顯示於類別:會議論文