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。
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.
出处
《现代电子技术》
2009年第11期161-163,共3页
Modern Electronics Technique
基金
国家自然科学基金资助项目(60575027)
关键词
VC++
声信号
去噪
声目标识别
VC＋ ＋
acoustic signal
denoise
acoustic target recognition
