dctn

Matlab code for LPC analysis

说明：  energy efficiency of noma

对原始信号进行emd分解，分解后的信号能够更好的体现出本身的特征，更加明了(The original signal EMD decomposition, decomposed signal can better reflect the characteristics of itself, more clear)

说明：  我们知道，小波变换的一级分解过程是，原始信号分别进行低通、高通滤波，再分别进行二元下抽样，就得到低频、高频（也称为平均、细节）两部分系数；而多级分解则是对上一级分解得到的低频系数再进行小波分解，是一个递归过程。以下是一维小波分解的程序. (We know that a wavelet transform decomposition process is that the original signal were low-pass, high pass filter, and then carried out under the binary sample, we obtained low-frequency, high-frequency (also known as the average, details) coefficient of two parts and Multi-level decomposition is a decomposition of the previous low-frequency coefficients to be further wavelet decomposition is a recursive process. Following is a one-dimensional wavelet decomposition process.)

这是背包问题的程序，用matlab实现，背包问题是NP完全问题(This is the knapsack problem program, using matlab , knapsack problem is a a NP-complete problem)

学习matlab，适合初学者，自学Matlab必备的60个小程序代码(Learning matlab, suitable for beginners, 60 small self-Matlab essential program code)

frank-wolfe的MATLAB实现(an example for frank-wolfe by matlab.)

mathematica中的构造基本向量和矩阵构造方法，方便初学者学习(the method of the constitution of basic matrix and calculous in mathematica,so easy for the starting student)

stbc alamouti code with all modulation scheme

对一幅图像的频谱进行频率位移，移到窗口中央，并显示出频率变换后的频谱图(The frequency spectrum of the image frequency shift, to move the central window, and shows the spectrum after the frequency conversion)