亚音速空中运动目标被动声探测定位系统研究

Subsonic Aerial Targets Passive Acoustic Detection Positioning System

叙述了空中被动声探测定位系统的工作原理,给出了系统的数据采集电路原理图,并采用了切比雪夫滤波器进行软滤波,得到目标信号。通过相关分析,求取不同传声器间的时延,利用几何关系求解目标的位置。计算机模拟结果表明,此系统能较好地探测低空运动目标,并实现定位。

This paper describes the air passive acoustic detection positioning system principle, gives the system＇ s data acquisition circuit schematics, and adopts the Chebyshev filter to get target signal. Through the relevant analysis, the time delay of different microphone is obtained, and the target signal is found by using geometry. The computer simulation results show that this system can better detect low altitude targets and locate it.