fft2

有关各种光纤光栅的matlab仿真代码，运行正确，可以看到图形(About a variety of fiber grating matlab simulation code, run right, you can see the graphics)

Matlab codes of FEM

说明：  matlab教程基础功能学习，适合初学者，简单清晰(matlab)

在机械故障中，对包含故障频率的某一段频率进行细化分析，从而得到更准确地故障频率(In mechanical failure, the failure frequency contains a section for detailed frequency analysis to obtain a more accurate fault frequencies)

特征降维方法，其中包含有典型的特征组合方式——PCA和特征选择中的SFFS，SBS，SFS。共四类常用的特征降维方式。(different features dimensionality reduction methods.)

用matlab仿真2PSK、4FSK的波形(Using matlab to simulate the waveform of 2 PSK, 4 FSK)

to generate rayleigh enveloppe

仿真OOK载波调制信号在AWGN信道下的误码率和误比特率性能，并与理论值相比较。 OOK是ASK调制的一个特例，把一个幅度取为0，另一个幅度为非0，就是OOK。(OOK modulation signal simulation in AWGN channel bit error rate and bit error rate performance, and compared with the theoretical value. OOK is a special case of ASK modulation to an amplitude taken as 0, and the other non-zero amplitude is OOK.)

MATLAB/simulink2013b最新版新用户说明书和老用户使用说明。(MATLAB/simulink2013b latest version of the new users and old users manual instructions.)

现代通信系统(matlab版本)第二版，第一章的第一个例题程序.(Modern communication systems (matlab version) second edition, the first chapter of the first Example program.)