Evaluate

说明：  在灰度范围[100,200]内显示图像，以灰度等级20显示图像(In gray-scale range of [100,200] display image to 20 gray levels display images)

ica a source for a detailed derivation of the formula for beginners entry can refer to a specific article.

Second order elliptic partial differential equations，二阶椭圆型偏微分方程求解程序(Second order elliptic partial differential equations)

对于一个随机的非高斯信号或者一个确定信号有很多的信息（远不止功率谱...）。本工具用来分析高阶谱和时频分布。(For a random signal or a set of non-Gaussian signals have a lot of information (far more than the power spectrum ...)。 This tool is used to analyze higher-order spectra and time-frequency distribution.)

Norden E. Huang写的关于HHT变换的介绍及其相关问题(Norden E. Huang Transform to write an introduction on the HHT and related issues)

说明：  自己做的一些资料，不大好，但可以看看，一起交流(we can communicate each other)

压缩感知的MATLAB仿真程序，非常适合初学者。(the matlab simulation program for compressed sensing.)

LDPC码与TURBO码的matlab仿真程序(The MATLAB simulation program of LDPC code and TURBO code)

Solving the power flow of an electric system using Gaussian-Jacobian method. files include: busdata6.m gaussppg.m linedata6.m pol2rect.m ybusppg.m

说明：  对课后习题阅读后，结合书中的程序片段，经过嫁接和连接完成调试(After reading on the after-school exercise, combined with the program segment in the book, after completion of commissioning and connection grafting)