WD_golay23.m

基于matlab和simulink的时间延迟chen系统的吸引子程序，对与非线性动力学与混沌方面的同行很有用。(A code for time-delayed chen attractor based on matlab and simulink)

数据资料是数学模型与实际问题接轨的重要途径和手段，有时还可以直接从数据资料中发现规 律组建模型。数据分析和处理是统计学研究的主要内容，也是计算数学的工作领域，近年来随 着计算机科学的发展，对“海量”数据的分析形成了一门新的交叉学科“数据挖掘”。这一章仅 介绍用统计学的最小二乘法构造拟合数据模型，以及用计算数学的函数插值方法处理数据解决 实际问题。(Is a mathematical model of data integration an important practical problem with the ways and means, and sometimes directly from the data can also be found in the law of the formation model. Statistical data analysis and processing is the main research, but also work areas of computational mathematics, computer science in recent years, along with the development of the " mass" analysis of the data formed a new cross-disciplinary " data mining." This chapter describes only the structure with a statistical method of least squares fit data models, and computational mathematics and data processing function interpolation methods to solve practical problems.)

Source Code For Watermarking

matlab，仿真设计，再设计的基础上进行了一定的开发，使得编译连接有了较好的改善(Build connections )

一个OFDM符号128个有效符号，插入128个虚拟子载波 符号率（即有效数据率）fsymbol，而发送速率（需要包括虚拟子载波）2fsymbol 输入的数据需要2倍的发送数据率，以便进行内插，实现位定时跟踪，即4倍fsymbol采样率的调制信号 OFDM symbol Nfft=128 points 一个OFDM符号数据点 Nfft*2 = 256 ， Guard Interval点 ＝Ng*2=64 (128 of an OFDM symbol of a valid symbol 128 inserted virtual sub-carrier Symbol rate (the effective data rate) fsymbol sending rate (including virtual subcarriers) 2fsymbol Of the input data needs to be 2 times the transmission data rate, in order to carry out the interpolation, to achieve the bit timing tracking, i.e. four times the sampling rate modulation signal fsymbol OFDM symbol Nfft = 128 points One OFDM symbol data points nfft* 2 = 256, the Guard Interval dot = Ng* 2 = 64)

SDVS(a,k) test for matlabpool open local 8 Run in Xeon 8 cores

说明：  拟合温度曲线，变量是温度和控制电压，控制温度在一定范围内(control system temperature)

This package is a pdf file that contains some important code related to the matlab programming. It can be of great use as code chunks iwhile developing complex matlab programs.

Lasso变量选择方法创始人的经典代码，内含多个源代码，每个可单独运行(Lasso variable selection method, founder of the classical code, containing more than one source code can be run separately for each)

PSO算法优化BP神经网络，数学建模模拟退火算法的改进(PSO algorithm to optimize the BP neural network, mathematical modeling simulated annealing algorithm improve)