duffing

此文件含有大量程序，是《先进 PID 控制及其 MATLAB 仿真 （程序）》书里的程序，含教材。(This file contains a lot of procedures, are " advanced PID control and MATLAB simulation (program)" book of procedures, including teaching materials.)

说明：  稀疏傅立叶算法，matlab实现仿真，并对SFFT和FFT算法对同一数据的处理时间进行了对比。(Sparse Fourier algorithm, matlab to achieve the simulation, and the SFFT and FFT algorithm for the same data processing time were compared.)

PCA人脸识别算法，识别率达到99 ，采用小波变换的方法及主成分分析法。(PCA face recognition algorithm, the recognition rate up to 99 , using wavelet transform methods and principal component analysis.)

feigenbaum第一常数，画出其分岔图。(feigenbaum first constant, draw the bifurcation diagram.)

toolbox for dimensionality reduction, including PCA

拓扑结构分析。可用于配电网的电气岛的构建。并辅以直接的数据。能够帮助加强理解。(Topology analysis. Distribution network can be used to build an electrical island. Supplemented by direct data. Can help strengthen understanding.)

用matlab所撰寫的huffman code,裡面沒有使用matlab內建的函示,完全自己撰寫而成,使和初學者練習參考使用.(Using matlab written huffman code, which did not use the matlab built-in letter that is entirely their own written so that beginners practice and their use and reference.)

lab exercise programs to learn matlab. easy examples to know the basic functions used in matlab coding. we can also learn how to create a circle ,spiral etc...

说明：  matlab实现模糊神经网的仿真，输出误差等曲线(matlab fuzzy simulation, neural networks, such as the output of the error curve)

energy detection algorithm.