Author:
Zou Jing,Nie Lei,Liu Mengran,Jiang Chuankai
Abstract
Based on Hanbury Brown-Twiss (HBT) interference in the sound field, a space positioning method is presented to realize the long-distance and high-precision positioning of sound sources in media. Firstly, theoretical model of HBT interference positioning is established. Location of the sound source can be acquired by analyzing the correlation function of the output signals. Then, sound source localization under different signal-to-noise ratios (SNR) shows that by this method, the sound source can be accurately found with six sensors (two arrays) even the SNR is low to 0.04. Positioning experiment in air is carried out, and the experimental results show that the sound source can be accurately located at 42 meters, and the positioning error is low to 0.1 meters. Thus the validity and accuracy of the HBT interference space location principle is demonstrated. It provides new ideas for the research of long-range target location in sound propagation media (air, water, etc.).
Reference8 articles.
1. Moving sound source localization based on triangulation method
2. Yang Yu: Acoustic source localization research based on machine learning[D] Nanjing University of Posts and Telecommunications, 2017.
3. Potamitis I, Chen H, Tremoulis G: Tracking of multiple moving speakers with multiple microphone arrays (2004).
4. Zhang Dawei, BAO Changchun, Xia Bingyin. Source localization based on time delay estimati on in complex environment[J] Journal on Communications, 2014(1):183-190.