An Indoor Positioning Method Based on Acoustic Signal
WU Xiuzhen
FENG Huifeng
SUN Ye
QI Yahui
YAN Shi
Abstract：Aiming at the positioning problem of indoor robots,an indoor positioning method based on acoustic signals is pro-posed.This method uses four microphone arrays to receive Chrip acoustic signals generated by the same sound source,and uses fast Fourier transform to solve the acoustic signal cross-correlation coefficient of each microphone array,which can be used to design the corresponding method to obtain the position and orientation information of the microphone array.Finally the cross-correlation co-efficient solving process is simulated and verified,and the microphone array system based on the single-chip microcomputer is de-signed to verify the positioning method experimentally.The results show that,this method is effective and feasible,and achieves centimeter-level positioning accuracy.
Keywords：indoor positioningacoustic signalfast Fourier transformcross-correlation coefficient
Publication Date：2024-01-20
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 44-47 )