3fullbridgeRload

stegenogrpahy in matlab based on dwt

i have attached some matlab file

信号处理中短时傅里叶变换（STFT）的实现，可用于实时系统，实时语音处理或者分段的FFT计算，亲测可用，拿走不谢！(The implementation of short time Fourier transform (STFT) in signal processing can be used for real-time system, real-time speech processing or segmented FFT calculation!)

说明：  编程分别用jocabi迭代法求解方程。在一般情况下，Guass-Seide迭代法比Jacobi迭代法收敛要快一些，但这也不是绝对的，在木些情况下，Jacobi迭代法收敛，Guass-Seide迭代却可能不收敛(use matlab to deal with the equation )

you can implement PCA using this code and facedata. This code describes average face of data.

DMI WITH N EQUAL TO 4,8,20

3.1语音信号的同态处理和倒谱分析30 3.1.1同态处理的基本原理30 3.1.2复倒谱和倒谱31 3.2离散余弦变换34 3.3Mel频率倒谱系数的分析37 3.3.1Mel滤波器组37 3.3.2MFCC特征参数提取38 3.4小波和小波包变换43 3.4.1小波变换43 3.4.2小波包变换44 3.4.3小波包算法45 3.4.4MATLAB中一维小波和小波包变换函数46 3.4.5MATLAB语音信号小波和小波包变换的例子49 3.5EMD的基本理论和算法53 3.5.1EMD的基本概念53 3.5.2EMD 的基本原理55 3.5.3EMD法的完备性和正交性57 3.5.4基于EMD的Hilbert变换的基本原理和算法59 3.5.5EMD法的MATLAB函数60(3.1 homomorphic speech signal processing fundamentals and cepstrum analysis 30 3.1.1 30 3.1.2 homomorphic processing complex cepstrum and cepstrum 31 3.2 Discrete Cosine Transform 34 3.3Mel frequency analysis of 37 3.3.1Mel cepstral filtering control group of 37 3.3.2MFCC feature extraction 38 3.4 wavelet and wavelet packet transform wavelet transform 43 43 3.4.1 3.4.2 3.4.3 44 wavelet packet transform wavelet packet algorithm 45 3.4.4MATLAB one-dimensional wavelet and wavelet packet transform function 46 3.4.5MATLAB voice signal example of wavelet and wavelet packet transform 49 3.5EMD basic theory and algorithms 53 3.5.1EMD basic concepts of the basic principles of law 53 3.5.2EMD of 55 3.5.3EMD completeness and orthogonality 57 3.5.4 Based on the basic principle of MATLAB functions and algorithms EMD Hilbert transform 60 of 59 3.5.5EMD law)

说明：  MATLAB中继选择源代码 。 MATLAB中继选择源代码 。(Matlab relay selection source code.)

说明：  PID的MATLAB仿真程序，各种PID的。很全，欢迎下载(hao)

介绍蒙特卡罗的仿真分析方法，并结合实际的问题进行仿真，得出仿真图形。(Introduce the Monte Carlo method. Integrating some practical problems, some simulations are made.)