mask_filter

The PID controller is the most widely used controller in industrial systems. However, appropriately tuning a PID controller is not an easy task although it has only three parameters at most. This submission provides a tool for beginners to learn PID tuning.

kmeans聚类算法，比较经典的算法，里面有讲解，容易理解(kmeans clustering algorithm to compare the classical algorithm, which has to explain, easy to understand)

超短脉冲对光学元件的热分布研究，在第j个高斯脉冲打上去之后，元件表明的温度分布情况(The temperature distribution of the heat distribution of ultrashort pulses of optical components, after the j-th Gaussian pulse beat up, elements indicated)

说明：  matlab 对基于形状的图像检索的算法 其中以七个不变矩为主要方法！！！！！！(matlab shape-based image retrieval algorithm for which the seven invariant moments as the main method! ! ! ! ! !)

matlab非线性kalman滤波工具箱，包括了ukf,pf等等，很好用(nonlinear kalman filter matlab toolbox, including ukf, pf, etc., very good)

from websit…………………………

travel sales man problem

线性调频信号是一种雷达常用的电磁波信号，当雷达信号检测到目标时候，反射后得到雷达回波信号，此时由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标速度信息的回波信号。(LFM signal is a commonly used electromagnetic radar signal, when the radar signal detection to the target time, after reflection of radar echo signal, at this time due to Doppler effect, the signal)

matlab版本的OLELM算法（在线极速序列机器学习算法），能进行模型训练和函数拟合。(matlab version OLELM algorithm (line speed serial machine learning algorithms), capable of model training and function fitting.)

通过计算和作图，比较4PSK和QPSK这两种不同的编码方式之间的优略，说明发射信号一个是三值的一个是二值的(By calculating and plotting, preferably QPSK, and compare these two 4PSK encoding between different strategies, a description of the transmission signal is a ternary value is two)