shibie)

图论中的最大流matlab应用程序，非常好用！(Graph theory of maximum flow matlab application, very easy to use!)

说明：  有关于滑模变结构的S函数的例程2，用来学习S函数结构(About SMVSC S-function routines 2, S-function structure for learning)

计算三维结构的电磁场,能准确得到相应的反射透射率(calculate the 3D elctricmagnetic waves)

Speech melbank,energy sectrum,Computes and returns the mfcc coefficients for a speech signal

coding for generating a mel filter bank for a given frequency vector

说明：  通过Monte Carlo仿真，说明DS扩频信号在抑制正弦干扰方面的有效性。用一均匀随机数发生器产生某个二进制信息符号的序列，每个信息比特重复Lc次。 包含文件：DS_restrain_interference.M SS.M(through Monte Carlo simulation, note DS spread spectrum signal sinusoidal interference in inhibiting the effectiveness. Using a uniform random number generator produce a binary sequence information symbols, each bit of information to repeat Lc times. Documents include : DS_restrain_interference.M SS.M)

Generat the Code Word

例3：分析占空比为ta的矩形脉冲频谱 T=1 时间窗大小 ta=0.5 占空比 N=256 t=linspace(-T,T,N) ts=2*T/N fs=1/ts (x=zeros(1,N) x(N/2-round(N/2*ta):N/2+round(N/2*ta))=ones(1,2*round(N/2*ta)+1) y=fft(x,N) figure plot(t,x) title([ 时域信号图 占空比为 ,num2str(ta)]) axis([-T T-0.2 1.2]) xlabel( t /s ) figure subplot(211) f=linspace(-fs/2,fs/2,N) plot(f,abs(fftshift(y))/N) title([ 矩形脉冲双边谱 脉冲时间t=[- ,num2str(ta*T), , ,num2str(ta*T), ] ]) xlabel( f /Hz ) )

拟合圆，具体的参考文献为“ G. Taubin, "Estimation Of Planar Curves, Surfaces And Nonplanar Space Curves Defined By Implicit Equations, With Applications To Edge And Range Image Segmentation",IEEE Trans. PAMI, Vol. 13, pages 1115-1138, (1991)”(Fitting circle, the specific references to G. Taubin， Estimation Of Planar Curves of the Surfaces And Nonplanar SPACE Curves the Defined BY Implicit Equations, with Applications, the To the Edge And the Range Image Segmentation, IEEE Trans PAMI, Vol 13, pages 1115-1138, (1991) )

THIS M-FILE USES THE TRANFER MATRIX METHOD TO EVALUATE THE COUPLED-MODE ％EQUATIONS. THE REFLECTION SPECTRUM OF THE GRATING AND THE TRANSMISSION ％SPECTRUM, DELAY AND DISPERSION OF THE FABRY-PEROT FILTER ARE SIMULATED(THIS M-FILE TRANFER USES THE MATRIX METHOD TO EVALUATE THE COUPLED- MODE EQUATIONS%. THE R EFLECTION SPECTRUM OF THE GRATING AND THE TRANS MISSION% SPECTRUM, DELAY AND DISPERSION OF THE FABRY-Ross PEROT FILTER ARE SIMULATED)