Simulation of car horn localization system
Ying-Ting Yu · Shengxue jishu · 2009
A system for car horn location which aims to helping agency to supervise the illegal car is proposed.The system consists of a 5-element microphone array and its algorithm is implemented in three modules.The first step is to detect the signal by the traits of the car horn in frequency domain.Then the time delay estimation(TDE) for microphone arrays is determined by generalized cross correlation(GCC),and the average of the estimations is calculated to improve the accuracy.Finally closed Spherical Interpolation(SI) is implemented to obtain the location of car horn.The simula-tion results indicate that the system effectively gets the location of car horn,thus provides a theoretical foundation for future implementation.