Acoustic Localization Method for Burst Point of Group Shot Projectile Based on Non-Parametric Estimation

In the acoustic localization of mass projectiles, due to the large number of mass projectiles and short firing time, the traditional algorithm has some problems, such as waveform superposition and the order of explosion arrival at the sensor is not easy to distinguish. In order to solve this problem, an acoustic location method for burst point of mass projectile based on nonparametric estimation was proposed. The distribution of explosion probability function was calculated based on the measured acoustic waveform and regional explosion energy function. Then, the actual explosion point coordinates were obtained according to the extreme value. This method does not need to estimate the arrival time and arrival angle parameters, solves the problem that the order of arrival time is not easy to distinguish. Simulation and field tests show that the algorithm can effectively deal with 1∼32 projectiles fired in 2s, and solve the problem of explosion point location in the process of group gun surface attack exercise training and combat test.