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matlab 非平稳信号分析，功能强大，但本人不太会用(matlab 脟脝 陆 脦脠脨脜 潞 脜 脰脦枚 拢 卢 鹿 | 脛脺脟 驴 )

digital signal processing labs

svr源程序，输入到matlab中进行svr回归模型建立与分析(SVR source program, input into matlab SVR regression model establishment and analysis)

说明：  编写一个函数，输入n为偶数时，调用函数求1/2+1/4+...+1/n,当输入n为奇数时，调用函数 1/1+1/3+...+1/n(利用指针函数) (Write a function, the input n is even, the function call seeking 1/2+1/4+...+ 1/n, when the input n is odd, call the function 1/1+1/3+...+ 1/n (using the pointer function))

对图像加入某种噪声，然后通过某种去噪手段再滤除噪声(Adding some noise on the image, and then through some means of re-noising filter noise)

说明：   用FFT计算信号x=cos3pit+2sin12pi*t 的频谱(Calculated using FFT signal x = cos3pit+2 sin12pi* t of the spectrum)

光学双稳特性曲线 调制作用:It=Ii*T(phi) 反馈作用:phi=phi_0+K*It 得透射率T(phi)与相移phi的反馈关系是 T(phi)=[phi-phi_0]/[K*Ii] 式中phi_0为初始相移 对于多干涉(F-P干涉)有: T(phi)=1/[1+F*(sin(phi/2))^2](Optical bistable characteristic curve modulation role: It = Ii* T (phi) feedback: phi = phi_0+ K* It may transmittance T (phi) and phase-shifting relationship between phi feedback T (phi) = [phi-phi_0 ]/[K* Ii] where phi_0 for the initial phase shift for the multi-interference (FP interference) are: T (phi) = 1/[1+ F* (sin (phi/2)) ^ 2])

2d truss analysis , code with matlab

利用matlab，产生具有三个频率的跳频信号(the generation of jump-frequency signal)

pulse width modualtion code and demosulation