watermark

this is program is used to convert any kind of colour image to grey scale image. when this code is executed , an window is displayed to accept image and output image is created in the same folder

多尺度包络谱程序,可用于检测旋转机械中旋转部件是否存在故障(Multiscale envelope spectrum program, can be used for the detection of rotating machinery fault)

Transformada discreta de Fourier

说明：  OFDM的发射系统仿真，程序绝对正确，希望能给你们一些参考。(OFDM Transmission)

遗传算法求最优化问题的MATLAB程序实现(MATLAB program to achieve genetic algorithms to optimization problems)

说明：  matlab实现的K-L变换实现主成分分析(matlab implementation of KL transform PCA)

通信系统仿真介绍的前面两章节的内容，讲述信号与线性系统和随机过程(Communication system simulation introduced in the previous two chapters, about the signals and linear systems and stochastic processes)

包括调制，解调，信噪比计算，有详细的注释，这是一个好用的频偏估计算法的matlab仿真程序。( Includes the modulation, demodulation, signal to noise ratio calculation, There are detailed notes, This is a useful frequency estimation algorithm matlab simulation program.)

说明：  该代码是一个基于MATLAB语言编辑的四面体有限元长应变四面体算法，包含一个例子很实用，性能稳定。感谢大家的分享。(This code is a kind of constrain Tetrahedral fem compution on MATLAB。there are total code and an example in cube。It is very practical and stable。thank you for your exchanging。 )

有限元QuadTriangleElement的matlab程序(FEA matlab QuadTriangleElement)