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采用熵值法求特征分量的权重，一般可用于特征选择与特征提取(Entroy algorithm ia used to be calculate the weight of each element,and is helpful in the selection and extraction of features)

-u"+u^2=x, 0<x<1 u(0)=0, u(1)=0

Dynamically create a variable. This should create a context extension.

本程序适用于matlab中，读取两幅图像，求取两幅图像的联合熵 程序非常易懂，适合初学者使用，可以用里面的图片进行测试，注意对程序读取图片名进行更改。(Read the two images and calculate the joint entropy of the two images.)

无刷直流电机基于双闭环simulink仿真，比较稳定的两个仿真(Brushless DC motor simulation based on double closed-loop simulink, two more stable simulation.)

直接序列扩频（Direct Sequence Spread Spectrum）工作方式，简称直扩方式（DS方式）。就是用高速率的扩频序列在发射端扩展信号的频谱，而在接收端用相同的扩频码序列进行解扩，把展开的扩频信号还原成原来的信号。(irect Sequence Spread Spectrum (Direct Sequence Spread Spectrum), hereinafter referred to as Direct expansion mode (DS). Is a high rate of spread spectrum sequence extension in signal spectrum, and at the receiving end with the same spread spectrum code sequence for expansion, the expansion of the spread spectrum signal back into the original signal. )

包含各种不同分布的garch模型及copula模型(IT CONTAINS MANY KINDS OF GARCH AND COPULA MODELS.)

Volume explorer tool by 3 orthogonal slices(Volume explorer tool by three orthogonal slices)

多个布朗运动的MATLAB程序例，可以作为参考(The MATLAB program for multiple Brown movements can be used as a reference)

A DVB-T 2K Transmission simulation of OFDM