STFT

以DUFFING方程为例，此程序运行了非线性方程的分岔图。(take DUFFING equation, for example, the program run the nonlinear equation of bifurcation diagrams. )

this project is my OPNET exam project.

FM Modulation for Matlab

说明：  直接序列扩频程序直接序列扩频程序 直接序列扩频程序直接序列扩频程序(dsss dsss dsss dsss implementdsss dsss dsss dsss implement)

2016年全国大学生数学建模A题，系泊系统的设计完整源代码(2016 mathematical modeling, mooring system code)

JDO的学习资料，自己整理了一本分，是值得学习的东西(JDO' s learning materials, their order a part, is something to be learned)

fresnel衍射传播函数，可以计算光波衍射过程(fresnel diffraction spread function can be calculated light wave diffraction process)

信号y=sin(2*pi*f1*t)+sin(2*pi*f2*t)加上信噪比为2高斯白噪声的傅里叶变换，分别画出时域和频域图(Signal y = sin (2* pi* f1* t)+ sin (2* pi* f2* t) plus noise ratio for two Gaussian white noise of the Fourier transform, respectively, to draw the time domain and frequency domain)

matlab code for nosice trakking device

K-means MATLAB源程序，适用于聚类分析的代码(K-means MATLAB programe)