Moving sound source localization based on triangulation method. (22nd December 2016)

• Record Type: Journal Article
• Authors: Miao, Feng; Yang, Diange; Wen, Junjie; Lian, Xiaomin
• Is Part Of: Journal of sound and vibration. Volume 385(2016)
• Page Start: 93
• Page End: 103
• Publication Date: 2016-12-22
• Subjects: Sound -- Periodicals; Vibration -- Periodicals; Son -- Périodiques; Vibration -- Périodiques; Sound; Vibration; Periodicals; Electronic journals; 620.205
• DOI: 10.1016/j.jsv.2016.09.001
• Languages: English
• ISSNs: 0022-460X

Abstract

Abstract: This study develops a sound source localization method that extends traditional triangulation to moving sources. First, the possible sound source locating plane is scanned. Secondly, for each hypothetical source location in this possible plane, the Doppler effect is removed through the integration of sound pressure. Taking advantage of the de-Dopplerized signals, the moving time difference of arrival (MTDOA) is calculated, and the sound source is located based on triangulation. Thirdly, the estimated sound source location is compared to the original hypothetical location and the deviations are recorded. Because the real sound source location leads to zero deviation, the sound source can be finally located by minimizing the deviation matrix. Simulations have shown the superiority of MTDOA method over traditional triangulation in case of moving sound sources. The MTDOA method can be used to locate moving sound sources with as high resolution as DAMAS beamforming, as shown in the experiments, offering thus a new method for locating moving sound sources. Highlights: A method is proposed that extends traditional static sound source localization triangulation to moving sources. A de-Dopplerization procedure based on the integration of sound pressure is introduced. The method locates the moving sound source by finding the minimum deviation in the scanning plane.