Design and Implementation of Sound Source Localization and Tracking System Based on Time Difference of Arrival(TDOA)Cross-correlation Algorithm
To achieve real-time localization and dynamic tracking of sound sources in a two-dimensional plane,a CC-TDOA sound source localization and tracking system is designed and implemented based on the Time Difference of Arrival(TDOA)cross-correlation algorithm.The system synchronizes the sampling of multiple sound sensors,amplifies and processes the signals,and uses an LCD screen to display the distance and azimuth angle of the target sound source in real time.Additionally,a two-dimensional gimbal is used to control a laser pointer to align with the sound source and continuously track it.Simulation and real-world experimental tests demonstrate that the TDOA-based cross-correlation localization algorithm has low computational complexity and high accuracy,with an angle error of less than 2 degrees and a distance error of less than 1.2%.This system can meet the requirements of real-time localization and tracking of sound sources in various intelligent applications.
sound source localizationcross-correlationTime Difference of Arrival(TDOA)algorithmtracking system design
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