waternetcompute

用MATLAB做的解方程的程序源程序及演示课件。(do with MATLAB solution to the equation and demonstrate procedures source courseware.)

说明：  这是一些例程，包括了汇编、m文件，如对站有帮助，则无比荣幸 (This is some routines, including a compilation, m documents, such as the right, there is help, incomparable honor)

good code Files: (see file headers, or type help file in MATLAB, for more info) README - this file trainEM_tree.m - function that takes a wavelet transform, a number of states, and a maximum number of iterations and returns HMT parameters. No convergence criteria is specified right now (easily fixed), it just runs a specified number of iterations (default 30).

empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)

这个压缩包括了通信系统的仿真建模原理，以及信道的模型，对初学者和有帮助！(This compression includes the principles of communication systems, simulation modeling, and channel models, for beginners and helpful!)

波束形成也称为空域滤波，即通过一定布置的空间阵元对空间信号场进行采样，然后经过加权处理得到期望的输出结果。(failed to translate)

该文件是单相全桥SPWM逆变器的仿真，使用simulink完成(This file is the simulation of single phase full bridge SPWM inverter, using simulink)

计算一维光子晶体的投射和反射，TM模式，PML边界条件，总场散射场模式，高斯脉冲，并已优化(One-dimensional photonic crystal projection and reflection, PML boundary conditions, the total field scattered field model, Gaussian pulse, and has been optimized)

matlab动画,描述布朗运动，质点有一定周期显示。(matlab animation, describing Brownian motion, particle cycle.)

MIMO_OFDM的信道估计，方法较多，性能很好，十分完整而强大的程序(MIMO_OFDM channel estimation methods are more good performance, very complete and powerful program)