Study on the Application of Time Delay Estimation in Seven element Acoustic Array's Location
The projectile is in supersonic while it is leaving the shell and flying in air.Based on acoustical principles the shock wave which the projectile have can be used to locate and track its space.For the problem of poor positioning accuracy in five elements space acoustic array,the location algorithm of seven element acoustic array and the location algorithm by the time delay estimation of passive acoustic are proposed.Compared with the five elements space acoustic array and the seven elements space acoustic array,it is found that seven element acoustic array can effectively improve the positioning accuracy with the computer simulation.