Finite-difference-method-in-Matlab

做过模糊PID的朋友很多遇到过这种问题，就是仿真启动不起来，停留在e-7等地方或者仿真很慢，自次上次有个朋友说改变步长能解决这个问题，最后的曲线能达到满足要求的时候，我让他找个例子他就没有后文，以前我做了很多这样的模糊PID，但靠改变步长并没有解决问题，仿真曲线直接发散出去了，我自己这两天也总在思考这个问题，通过不断的调试总结，明白了不少，给遇到这个问题的朋友讲解一下解决办法吧，以一个例子详解：(Done a lot of friends of the fuzzy PID encountered this problem, simulation start up, stay in the e-7 and other local or simulation is very slow, have a friend who said to change the step size to solve this problem since the times the last, the finalcurve to achieve to meet the requirements when I asked him to find examples of his later, I have done a lot of fuzzy PID, but by changing the step does not solve the problem, the simulation curve directly divergence out, Itwo days always thinking about this problem, summarized by the debug and understand a lot of friends to experience this problem to explain the solution, an example Detailed:)

可调输入发送端编码，可调滤波器，gmsk信号调制解调过程(Adjustable input transmitter encoding, tunable filter, gmsk signal modulation and demodulation process)

lud算法基于matlab(lud algorithm is based on matlab)

多目标粒子群算法优化分布式发电选址 实现了最优目标(Mutil-Objective particle swarm optimization)

alpha-beta滤波器是一种很实用的滤波器，可以和卡尔曼滤波，信息滤波器做比较，对于初学者有很大帮助(alpha-beta filter is a very practical filter can Kalman filter, the information filter comparison, are very helpful for beginners)

DOA估计的一个函数，function [Count_signals, sorted_matrix,sorted_value](DOA estimation of a function, function [Count_signals, sorted_matrix, sorted_value])

基于随机阵列的MUSIC算法，用于目标的DOA估计。(Random-array based MUSIC algorithm which can be used to estimate the DOA of targets.)

本程序的目的是模拟一个ARMA模型，然后进行时频归并。考察归并前后模型的变化(This procedure aims to simulate an ARMA model, and then proceed to merge time-frequency. Inspected before and after the model of merging changes)

background subtraction using gmm

NeuralNetworkMatlab 神经网络讲义的matlab源代码(NeuralNetworkMatlab neural network overhead of Matlab source code)