Error Simulation of Three-array Passive Acoustic Location System of Aerial Blast Points

The passive acoustic location is an effective means to detect the aerial blast points.A passive acoustic location system based on three pyramid arrays consisting of five microphones,regards the junction of the noncoplanar directional lines of every array as the target location.This junction is the triangular barycenter.The direction error of a pyramid array consisting of five microphones and the location error of this three-Array system were simulated.The simulation results indicate that the pyramid array consisting of five microphones and the three-Array location system of regular triangle structure do not have blind space.The three-array location system has higher distance measurement precision and has a slightly higher direction precision than an array's.Therefore,the three-array location system can be applied in the direction and distance measurement of the aerial blast points.