GPS_corr

在理想环境下对ofdm进行仿真，有qpsk映射，ifft，d/a的转换，和接受等(In an ideal environment for simulation of ofdm, there qpsk mapping, ifft, d/a conversion, and acceptance of such)

gradient function for matrix

说明：  function [ret,x0,str,ts,xts]=s4(t,x,u,flag) s4 is the M-file description of the SIMULINK system named s4. The block-diagram can be displayed by typing: s4. SYS=s4(T,X,U,FLAG) returns depending on FLAG certain system values given time point, T, current state vector, X, and input vector, U. FLAG is used to indicate the type of output to be returned in SYS.

matlab模拟杨氏双缝干涉，动态模拟，形象生动(matlab simulation of Youngs double slit)

置信传播算法用于无环图时的误码率的检验。(this program is a detection of the error bit when the BP algorithm used in the cycle free graph.)

matlab 的消噪程序 对于非线性噪声 转子的非线性非平稳噪声有较好的效果(matlab noise cancellation procedures for the nonlinear noise rotor non-linear non-stationary noise has a good effect)

this is about ML_equalizer_for_STBC_systems

实现RLS的matlab程序，是递归最小二乘法的推广和运用

本程序是刘金琨编著的《先进PID控制matlab仿真》一书的所有matlab源代码及simulink方程文件，为利用该书学习pid控制仿真的同学提供方便，省去了手动输入的麻烦！希望对大家有所帮助。(This procedure is edited by Liu Jinkun the " matlab simulation of advanced PID control," a book of all source code and matlab equation simulink file, for the use of the book pid control simulation study to facilitate the students, eliminating the trouble of manually enter! We want to help.)

This book is useful for modeling the wireless channel with common noise and affects