【摘要】 语音通信是现代通信中常用的手段,语音信号受干扰的程度一般分别用时域和频域的覆盖度及信噪比等指标来表示,分析过程复杂,准确度低。在此通过介绍小波分析的基础理论,探讨了语音信号通信的质量评价方法,提出了用小波能量来分析判定语音信号通信效果的方法,并利用仿真数据分析与专家鉴定的方法,对此进行了验证,最终给出了仿真结果,取得了满意的效果。更多还原

【Abstract】 The speech communication is an important method in modern communication. The traditional method of analyzing the jammed grade with the time and frequency energy and s/n ratio is very complex and the accuracy is rather low. To slove this problem, the basic theory of wavelet packet is introduced. Because the wavelet energy of a signal can instead of the energy of the signal in the time and the frequency domains, this method of examining the effect of the speech communication is presented by using wavelet energy. Computer simulation results have shown its good performance.更多还原