PSO--PID

计算多维正态分布的概率密度值，给出均值和方差矩阵(Multidimensional normal distribution calculate the probability density values, given the mean and covariance matrix)

高阶谱双谱程序，非常实用的双谱例程供你参考(Order spectrum bispectral procedures, very practical double spectral routines for your reference)

信号时正弦波加正态零均值白噪声，信噪比10db，信号频率2kHZ，采样频率100kHZ，数据长度N=256。 (1). 用周期图法进行谱估计。(Sine wave signal plus zero-mean normal white noise, SNR 10db, frequency 2kHZ, sampling frequency 100kHZ, data length N = 256. (1) with the periodogram spectral estimation.)

模拟单边带调幅及解调产生300 ~ 3400Hz的调制信号，画出时域波形及频谱；  产生载波信号，频率自定义，画出时域波形及频谱；  产生加性高斯白噪声，画出时域波形及频谱；  单边调幅，画出叠加噪声后的调制信号和已调信号的波形及频谱；  设计滤波器，画出幅频响应图；  解调，画出解调后的信号时域波形及频谱，并对比分析。(Simulation of single sideband amplitude modulation and demodulation )

说明：  本书系统介绍MATLAB遗传算法和直接搜索工具箱的功能特点、编程原理及使用方法。全书共分为9章 第一章至第四章介绍遗传算法的基础知识第五章至第七章介绍英国设菲尔德大学的MATLAB遗传算法工具箱及其使用方法 第八章和第九章介绍MathWorks公司最新发布的MATLAB遗传算法与直接搜索工具箱及其使用方法(This book systematically introduce MATLAB Genetic Algorithm and Direct Search Toolbox features and how to use programming principle. Chapter book is divided into 9 chapters I to IV to introduce the basics of genetic algorithm to Chapter VII of Chapter V introduced the University of Sheffield MATLAB genetic algorithm toolbox and its use of Chapter VIII and IX MathWorks introduced the company The latest release of MATLAB Genetic Algorithm and Direct Search Toolbox and its use)

psoTRAINb khkhk kbnkbn

Gardner 方法时间同步，时间同步非常重要的方法(Gardner way for time-sychronizing)

Human Computer Interaction

for gps tracking acquision satellite position and velocity finding

说明：  是一篇关于matlab的ofdm文章，很适合学习仿真的人(Is an article on the ofdm matlab article, it is suitable for people learning simulation)