周期图方法频率估计 傅里叶变换求功率谱密度 用Matlab编程仿真实现-Periodogram method of frequency estimation Fourier transform for power spectral density using Matlab programming simulation

本文首先研究了语音激活检测算法。对基于短时能量和短时过零率双门限法语音激活检测的噪声估计算法做了研究及仿真，同时还研究了一种基于最小子带能量的噪声估计方法。-Firstly, studied voice activity detection algorithms. Based on activity detection and short-term energy zero rate threshold method voice noise estimation algorithm to do t