chapter23

将原始语音经过预处理，利用频率弯折小波进行特征提取，该程序为求语音信号的Laguerre系数的程序(original voice after pretreatment, the use of the frequency characteristics of Meander wavelet extraction, The procedure for the sake of the voice signal Laguerre coefficient procedures)

光滑比的检验，用于灰色预测模型的建立过程，如果数据达不到要求，就不能用来预测(to exam it whether smooth or not)

MATLAB 程序,单片机采样后将数据由RS232上传到PC, 由MATLAB截获并画图, 实现示波器功能(MATLAB procedures, single-chip sampling data from the RS232 will be uploaded to the PC, intercepted by the MATLAB and drawing, realize oscilloscope function)

matlab编写的菱型搜索算法，希望大家有用(Diamond Search Algorithm)

两个求信号包络谱和幅值谱的matlab程序，也可求功率谱。(2 effective procedures for the signal envelope spectrum and amplitude spectrum)

在matlab开发环境下实现对信号的经典功率谱估计(Classical Spectrum)

EEG-Based Lapse Detection With High Temporal resolution

说明：  《MATLAB程序设计教程》源代码，为书籍源代码(Matlab design lecture)

一些matlab常用程序，包括求各阶导数及其程序运行后得到的相应的结果(Some commonly used matlab program, including the derivative and the program after the corresponding results)

语音信号的iir滤波器设计,从带有噪音的信号中提取原始声音.目前，MP3播放器一般功率放大器的工作频率范围就是这个范围。但是大部分有用的和可理解的信息的频率在200到3500Hz之间。所以我们可以在这个范围间滤波，达到使声音可理解的要求。现将数字滤波器的设计指标设为通带截止频率fb=600HZ,阻带频率fc=1200HZ,通带波纹Ap=1dB，阻带波纹As=40dB,要求确定H(z)。(design of the iir filter, get the original voice without noise)