PPM_TH_NEW2013.1.17

数字滤波，包含：中位值滤波，算术平均滤波，去极值平均滤波，加权平均滤波，低通滤波()

说明：  此程序可用于PLS，PCR的定量测定，主要用于化学定量分析，非常实用(This procedure can be used for PLS, PCR quantitative measurement, mainly for chemical quantitative analysis, very useful)

一些很基础的，很有用的matlab小程序(some very basic, very useful small Matlab procedures)

kohoenn neural network

三阶锁相环频率合成器的simulink 模型，可以演示三阶锁相环工程过程，验证参数合理性(Three phase lock loop )

基于matlab的核模糊C-means聚类算法(KFCM),(Matlab-based nuclear Fuzzy C-means clustering algorithm (SN))

自己编写的基于惯性权重线性递减策略的粒子群算法优化聚类(My own particle swarm optimization algorithm based on the linear decreasing inertia weight strategy applied to cluster.)

说明：  利用matlab工具箱函数，分别画出长度为15的矩形窗、汉宁窗、汉明窗和布莱克曼窗的幅频（dB）特性曲线，观察它们的主要参数（主瓣宽度、过渡带宽度、旁瓣峰值幅度）的差别。(Matlab toolbox function is used to draw the amplit-frequency (dB) characteristic curves of rectangular window, hanning window, hamming window and blackman window with the length of 15, and observe the difference of their main parameters (main lobe width, transition band width, side lobe peak amplitude).)

一杯沸水冷却，圆柱体模型，底面半径0.05m，高0.1m，周围温度20度，初始水温100度 方程是四维输运方程（常数a^2=k/(c*p)，k是热传导系数0.6006焦/（米*秒*度）） 初始条件：t=0时水等于100度 边界条件：1.上下壁都是自由冷却，第三类边界条件，周围温度保持在20度（H=k/h,h取1） 2.杯壁绝热，第二类边界条件 (cup of boiling water cooling cylinder model, the bottom radius of 0.05m, 0.1m high. temperature around 20 degrees, initial temperature of 100 degrees equation is four-dimensional equations (a constant ^ 2 = k/(c* p), k is the thermal conductivity coefficient of 0.6006 Coke/(m** seconds degrees)) initial conditions : t = 0 to 100 degree water boundary conditions : 1. upper and lower walls are free cooling, the third boundary conditions, maintain the temperature around 20 degrees (H = k/h, h for 1) 2. Beibi insulation, the second boundary condition)

说明：  MATLAB仿真及其在光学课程中的应用-第二版 源程序(MATLAB Simulation and Its Application in Optics Course - Second Edition Source Program)