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matlab PID仿真例子，通过改变PID参数，了解比例积分微分的作用(matlab PID)

说明：  适合Matlab的初学者，主要讲了Matlab的一些基础知识，都很基本的。(Matlab for the beginner, the main speech of some basic knowledge of Matlab, very basic.)

《Sparse and Redundant Representations：From Theory to Applications in Signal and Image Processing》Michael Elad的电子书，讲稀疏表示及其应用(《Sparse and Redundant Representations：From Theory to Applications in Signal and Image Processing》Michael Elad )

本文档实现了多种基于物理层RSS信道特征加密算法的实现以及性能分析对比。(This document realized its performance analysis and comparison of a variety of physical layer based RSS channel characteristics encryption algorithm.)

各种PID控制算法的MATLAB源程序，可以结合相应的指导书学习(various PID control algorithm MATLAB source, combining the corresponding study guide book)

混沌时间序列预测神经网络一步预测神经网络多步预测(chaotic time series predictionMain_RBF_MultiStepPred.m)

it is matlab code that smoothing the signals level so that we can know it

说明：  1.同时对多个光谱数据进行一阶导数计算，并保存在元胞数组中。2.对光谱数据进行取均值，每三个列为一组。(At the same time, the first derivative of multi-spectral data is calculated and stored in the cell array.The spectral data are averaged and divided into three groups.)

using Jakes model to simulate rayleigh channel fading

ansys命令流，用于计算两端固定的三维梁动力响应(ansys command stream, used to calculate the three-dimensional beam fixed at both ends of the dynamic response)