u14_4

this codw is a simulation of photonic crystal 1 dimentional array dispersion

利用matlab的gui设计的带有输入和输出功能的界面图形，实现等距线可视性很强，自己独立编写的数据和图形，学习非常值得,实现pca svm压缩图像，matlab语言(Using GUI of MATLAB to design interface graphics with input and output functions, realizing the visibility of isometric line is very strong, the data and graphics written independently by oneself are very worthwhile to learn, and realizing PCA SVM compressed image, MATLAB language)

说明：  无刷直流电机pwm控制仿真 matlab源程序，simulink仿真(Matlab source program of PWM control simulation of BLDCM, Simulink simulation)

CP-OFDM的MATLAB源代码，简洁明了，非常适合初学者(Cyclical Prefix-Orthogonal Frequency Division Modulation；MATLAB source code；Brief and clear Better for the beganners.)

用MATLAb对移动通信中的瑞利信道进行仿真并与理想信道进行对比(matlab abou ruili channel ananlysis)

说明：  mlp

MP3压缩域的音频水印的研究 基于压缩域的音频信息隐藏技术，主要研究在MP3等格式的音频文件中嵌入秘密信息达到版权保护的目的。(a audio watermarking based on modified discrete cosine transform ofmpeg/ audio layer III)

matlab6.5辅助小波与应用，一本很好的小波学习书。(matlab6.5 secondary wavelet and application of wavelets to study a good book.)

扩展功能的DFT，可以自动扩展输入序列X，如果你输入的长度不足N，会自动以NaN补足(Extension of the DFT, can be automatically extended input sequence X, if you enter a length less than N, will automatically fill in NaN)

说明：  m-k趋势检验，做时序趋势变化的方法的源代码(M-k trend test, the source code of the method of temporal trend change)