PID

用MATLAB的灰色预测GM（1，1）模型 (Grey with a MATLAB-GM (1,1) model)

粒子群优化算法。这个程序就是最基本的粒子群优化算法程序，用Matlab实现，非常简单。只有几十行代码。(Particle Swarm Optimization. This program is the most basic particle swarm optimization program using Matlab, very simple. Only a few dozen lines of code.)

这是用MATLAB实现的有限数字滤波器设计，与发的滤波器设计一起学，效果会更好(This is achieved using MATLAB limited digital filter design, the filter design and development with science, the effect will be even better)

viterbi algorithm in Hidden Markov Model

c语言和matlab互调 c语言和matlab互调 (c language and intermodulation c Matlab language and intermodulation c Matlab and Matlab language intermodulation c Matlab language and intermodulation)

PCA的原代码，绝对好使，大家用了就知道~~~希望对大家有帮助(the original code, absolutely so, we have spent know ~ ~ ~ hope to be helpful)

estimate the rician K factor

辛普森规则逐列累计总和，是一个求卷积的函数。(Simpson s rule by the cumulative sum of the column is a convolution function.)

China stock data format. fit to programmer

说明：  kalman滤波，扩展的kalman滤波（EKF），unscented Kalman filter（UKF），基于EKF和UKF混合模型的IMM实现，以及配套的Rauch-Tung-Striebel和two-filter平滑工具，一个很好用的框架(kalman filtering, extended kalman filter (EKF), unscented Kalman filter (UKF), based on the EKF and UKF realize mixed-model IMM as well as ancillary Rauch-Tung-Striebel and two-filter smoothing tool, a very good framework to use)