graychange

说明：  可以实现人脸识别，matlab程序的源代码，国外资源，基于PCA算法 (Face recognition can be achieved, matlab program)

语音信号处理 时域分析 短时能量 短时平均过零率 短时自相关函数( a=wavread( beifeng.wav ) subplot(6,1,1),plot(a) N=32 for i=2:6 h=linspace(1,1,2.^(i-2)*N)； )

Solution Digital Signal Processing Using MATLAB, 3rd Edition

4) 创建一个名为Complex的类，进行复数的算术运算。复数的形式为： realpart+imaginarypart*i 用浮点变量表示类的private数据。提供构造函数，能够对所声明的该类对象进行初始化。在不提供初始化值的情况下，该构造函数应包含默认值。针对以下功能，分别提供一个public成员函数。 （1）两个复数相加； （2）两个复数相减 （3）用（a, b）的形式打印复数，其中a为实部，b为虚部。 (4) Create a class called Complex, and perform complex arithmetic operations. Plural form: realpart+imaginarypart* i said private data class with floating point variables. Provide a constructor, the object can be declared for the class is initialized. In the case do not provide initialization values, the constructor should contain default values. For the following functions, which provide a public member function. (A) two complex numbers (2) the subtraction of two complex (3) (a, b) in the form of plural printing, where a is the real part, b is the imaginary part.)

Multi-class Coding (adapted from from LS-SVM for SPIDER). Encode (code_MOC, code_ECOC, code_OneVsAll, code_OneVsOns) and decode (codedist_hamming, codedist_bay) a multi-class classification task into multiple binary classifiers.

gmsk modulation of numerical data generated by a random source, the output of the modulator give two signals, the first is gmsk signal and the other is gaussien frequency pulse shape

说明：  基于MATLAB的GUI界面实现图片的读取保存滤波去噪等功能(MATLAB-based GUI interface to read images saved to achieve features such as filtering denoising)

Kalman滤波器的MATLAB实现，老师上课给的范例程序，大家可以研究研究(Kalman Filter MATLAB, the teacher in the class for an example of procedures, We can study a)

采用有限单元法计算平面刚架自振频率，可生成单刚、单元质量阵并组成总刚、总质量矩阵，并绘图显示。(Plane frame using the finite element method to calculate the natural frequency can be generated just a single unit consisting of the total mass matrix and just total mass matrix, and graphics.)

说明：  n mathematics, a wavelet series is a representation of a square-integrable (real- or complex-valued) function by a certain orthonormal series generated by a wavelet. Nowadays, wavelet transformation is one of the most popular candidates of the time-frequency-transformations. This article provides a formal, mathematical definition of an orthonormal wavelet and of the integral wavelet transform