基于小波理论的声信号特性分析

Characteristic Analysis of Sound Signal Base on the Small Wave Theory

在现代化信息战中,声目标识别是非常便捷、有效的目标识别方法之一。通过声识别系统对汽车声信号进行采集,利用小波分析方法对信号进行处理,得到信号经小波分解不同频带的能量,从而找出信号能量的变化规律以及声目标信号的特征向量,为不同声源目标的识别做基础。

In morden informance war, sound target identify is one of the identify ways ,which is convenient and effective. We collectered the autocar＇ s sound signal, using the small wave analysis method to dael with the signal, we can recive the energy of different frequency band, consequently, we can find out the change rules of the signal＇s energy and the eigenvetor of sound signal, which is the basis of different sound target indentified.