Matlab

本文件包含Crank Nicolson算法的matlab源代码，在一定的初始条件下有一定的实用性。(This document contains the Crank Nicolson algorithm matlab source code, under certain initial conditions have a certain practicality.)

说明：  实现了pcm调制的全过程的MATLAB仿真，包括调制、A率压缩、量化、解扩、解调、信号恢复。(Modulation achieved pcm MATLAB simulation of the whole process, including the modulation, A rate of compression, quantization, despreading, demodulation and signal recovery.)

shannnon fanno coding and huffmmaannn cooooddding

It cab be open old format of mdl file on new version of matlab invalid model name or file does not exist. due to the presence of characters that are not supported in the current character encoding setting windows-949 clc clear close all bdclose all set_param(0, CharacterEncoding , ISO-8859-1 )

自适应的选择高斯混合模型个数，并用EM算法估计参数(Adaptive selection of the number of Gaussian mixture model and estimated parameters using EM algorithm)

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(（Evolu2tionary Algorithm - EA）。PSO 算法属于进化算法的一种，和遗传算法相似，它也是从随机解出发，通过迭代寻找最优解，它也是通过适应度来评价解的品质，但它比遗传算法规则更为简单，它没有遗传算法的“交叉”(Crossover) 和“变异”(Mutation) 操作，它通过追随当前搜索到的最优值来寻找全局最优。这种算法以其实现容易、精度高、收敛快等优点引起了学术界的重视，并且在解决实际问题中展示了其优越性。(Particle swarm optimization, also known as particle swarm optimization (Particle Swarm Optimization), abbreviated as PSO, is a new evolutionary algorithm developed in recent years ((Evolu2tionary Algorithm- EA) .PSO algorithm is an evolutionary algorithm, and similar genetic algorithm, it is also starting random solutions, through iterative search for the optimal solution, which is also uated by the quality of the fitness solution, but it is much simpler than genetic algorithms rule, it does not have the genetic algorithm cross (Crossover) and variant (Mutation) operation, which by following the current search to find the optimal value to the global optimum. the algorithm for its easy implementation, high accuracy, and fast convergence advantages attracted academic attention, and in solving practical problems demonstrated its superiority.)

本实验先利用Mathematica求解非线性方程（组）,探索不动点、分形的性质.(In this study, the first use of Mathematica for solving nonlinear equations (group), explore the fixed point, fractal nature.)

一种时频变换方法—Margenau-Hil分布，用于信号时频分析。(A time-frequency transformation method-Margenau-Hil distribution for the signal time-frequency analysis.)

自己编写的Matlab程序，解决机器人路径规划问题。欢迎大家多多指教！(own procedures for the preparation of the Matlab solve robot path planning. Welcome to the exhibitions.)

在matlab下，实现太阳高度角、日期计算。(In matlab, the realization of solar altitude angle, the date of calculation.)