【摘要】 对声信号进行去噪处理,是声目标识别的必要步骤,其目的在于去除声信号中的无用成分,以减小噪声对有用信号的干扰。介绍声信号去噪的几种常用方法,如算术平均值法、中值法、加权平均值法等,并在VC++编程实现的基础上,证明了该方法能够有效性地对声信号进行去噪,可以应用于工程实践。更多还原

【Abstract】 Denosing of acoustic signal is a necessary step of acoustic target recognition,which can eliminate the useless component of the acquired signal and decrease the interference from noise to useful signal and improve the Signal-to-Noise Ratio(SNR).In this paper,several common denosing methods such as arithmetical average method,median method and weighting average method are presented.It is proved that based on VC++ these methods are effective for acoustic signal denoising and which can be applied into practice.更多还原