chuck---Kogpya

基于高斯白噪声信道采用M-QAM调制技术的系统，分组错误概率与信噪比函数关系的matlab仿真程序(Gaussian white noise channel with M-QAM modulation system, packet error probability and SNR function of matlab simulation program)

this package is used for the design of digital graphic equalizer that can be used in mobile environment after optimization

主要功能是turbo码的viterbi译码的matlab仿真(Main function is to viterbi decoding turbo codes matlab simulation)

说明：  本书为国外经典Matlab电子书籍。本书详细介绍了Matlab编程的基本原理和方法。是初学者的最佳指导用书。(Matlab book e-books for foreign classics. Matlab programming book details the basic principles and methods. Is the best guide book for beginners.)

说明：   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)

说明：  粒子群算法寻优，在限定条件下实现对群体变量的选择优化，以达到目标的最优值。(Particle swarm optimization)

控制系统仿真中的根轨迹MATLAB仿真源码(Control System Simulation in MATLAB simulation source root locus)

基本上涵盖了所有的matlab应用函数，无论是初学者还是做深入研究仿真应用，都很实用(Basically covers all of the matlab application function, whether a beginner or do in-depth research simulation applications, are useful)

美国轨道谱AAR5铁路轨道空间谱生成程序，主要生成轨距不平顺性。(generate the AAR5 track Rolling and gauge Irregularity)

基于matlab软件的联络线功率波动的功率取样源代码(Tie-line power fluctuation of power sampling)