A New Algorithm for NLOS Acoustic Passive Localization of Low Altitude Targets
一种用于低空声源目标超视距被动声定位的新方法

A new algorithm for NLOS(Non-Line-Of-Sight) passive acoustic localization of low altitude targets is presented. Based on target reflection point, the target point can be localized. This approach can reduce the NLOS error caused by acoustic propagation effectively, to increase localizing precision and provide important information for the radar to track and localize. Simulation results show that the algorithm have good effectiveness to estimate the low altitude target’s position especially which hiding behind a mountain when time-delay estimation is high enough.