DCAC-Inverter

说明：  求解LE，小数据量法，简单易操作。。。。(Solving the LE, the small amount of data law)

直接序列扩频的系统仿真，适合理解原理，很实用(Simulation of direct sequence spread spectrum system for understanding the principle, it is practical)

％radon transform clear all ％ N=800 n=1:N fs=200 t=n/fs x1=exp(j*2*pi*(5*t+0.5*5*t.^2)) x2=exp(j*2*pi*(5*t+0.5*15*t.^2)) x=x1+x2 ％N=length(x) ％ ambifunb(x ) ％*****************************************RAT naf=ambifunb(x) htl(abs(naf)) ％ [wh,rho,theta]=htl(abs(naf)) colormap([0,0,0]) ％ xlabel( 极半径 ) ％ ylabel( 角度 ) ％**************************************％找出峰值点的坐标,计算初始频率和调频斜率(正确) ％找出峰值点的坐标 b=max(max(wh)) [u,a]=find(wh>=0.8*b) ( Radon transformclear all N = 800 n = 1: N fs = 200 t = n/fs x1 = exp (j* 2* pi* (5* t+ 0.5* 5* t. ^ 2)) x2 = exp ( j* 2* pi* (5* t+ 0.5* 15* t. ^ 2)) x = x1+ x2 N = length (x) ambifunb (x)***************************************** RATnaf = ambifunb (x) htl (abs (naf)) [wh, rho, theta ] = htl (abs (naf)) colormap ([0,0,0]) xlabel (polar radius) ylabel (angle)************************************** to find the coordinates of the peak point, calculating the initial slope of the frequency and FM (right) find the peak point of the coordinates b = max (max ( wh)) [u, a] = find (wh)

有限反馈的仿真程序，当反馈比特数随着信噪比的增加而变化的时候。(Limited feedback simulation program, when the feedback bits increases with the signal to noise ratio changes.)

This is a Pitch detector.

使用matlab实现对偏微分方程的有限元法求解。(Using the finite element method matlab realize partial differential equations.)

MATLAB TSP问题解决.可自行输入城市坐标. (MATLAB TSP problem. Are free to enter the city coordinates.)

TDCS(变换域通信系统)与直扩通信系统性能比较的程序，对于研究TDCS的朋友很有用！(TDCS (Transform Domain Communication System) and Direct Sequence Spread Spectrum Communication System Performance Comparison of procedures for the study of useful TDCS friends!)

matlab的一些实例，希望对大家有帮助(matlab some examples, we want to help)

用matlab自编写的简单遗传算法程序(SGA) (using Matlab since the preparation of a simple genetic algorithm (SGA))