Branch line coupler design using Matlab

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])

GPS信号中C/A码的傅里叶变换，matlab程序(GPS signal C/A code of the Fourier transform, matlab program)

这是一个对信号进行小波包特征量提取的程序源代码，对初学者有帮助(This is a signal wavelet packet feature amount extraction program source code, for beginners help)

分析双极性不归零码的功率谱特性请输入随机序列的长度N= (ubplot(312) plot(f,lpf) title( 低通滤波器 ) axis([-fs/2 fs/2-0.2 1.2]) subplot(313) plot(f,abs(yr_lpf)/N) title( 经低通滤波后的频谱 ) xlabel( f /Hz ) )

matlab入门到精通，对初学者和高手都非常有用。(Entry to the proficient in matlab, is very useful for beginners and master.)

matlab小波分析程序，有详细的注释，实现了图像的加水印，去噪，加噪声等功能，是机器学习的例程，主要为数据分析和统计，有PMUSIC 校正前和校正后的比较。

Matlab实用程序 1-32是：图形应用篇(Matlab Utilities)

MATLAB软件基本的图形应用实例，浅显易懂(MATLAB basic graphics software applications, easy to understand)

支持向量机 SMO算法（Sequential Minimal Optimization algorithm）的matlab实现（伪码）(svm SMO algorithm（Sequential Minimal Optimization algorithm）)

matlab仿真的GPS信号捕获程序，相关及非相关累积算法(matlab simulation of the GPS signal acquisition process, relevant and non-related accumulation algorithm)