music_SNR_gujiwucha

混合蛙跳算法程序，采用1、若干次运行取最优 2、增加进化代数maxgen 3、加大种群规模popsize。三种方法来可有效克服随机初始化带来的局部极小问题(Shuffled frog leaping algorithm, using one, several runs to take the best two, increasing evolution algebra maxgen 3, to increase the population size popsize. Three ways to effectively overcome local minima caused by random initialization problem)

Simulated annealing (SA) is a generic probabilistic metaheuristic for the global optimization problem of applied mathematics, namely locating a good approximation to the global optimum of a given function in a large search space. It is often used when the search space is discrete (e.g., all tours that visit a given set of cities). For certain problems, simulated annealing may be more effective than exhaustive enumeration — provided that the goal is merely to find an acceptably good solution in a fixed amount of time, rather than the best possible solution.

分段平均法功率谱分析，不同数据重叠长度对结果的影响 (Sub-average power spectrum analysis, the results of different data length on the impact of overlapping)

说明：  两个关于数值分析的matlab代码，十分有用(2 matlab code on Numerical Analysis, very useful)

The code in matlab help user do statistical analysis of time series

matlab语言与控制系统仿真实训教程的simulink仿真文件(the matlab language with the control system simulation training tutorial simulink simulation file)

MATLAB爬虫程序，获取指定时间段的所有上市公司公告文本。(A MATLAB spider can fetch the published texts by A-stock companies in certain period.)

说明：  利用CMA算法实现4QAM信号的盲均衡，步长0.001，SNR=15，取得了较好的结果。没有实现相位补偿(Using the CMA algorithm to achieve blind equalization of 4QAM signals, with a step size of 0.001 and SNR = 15, good results have been achieved. No phase compensation)

RBF网络在matlab环境中的开发，从数据输入到网络各项参数的调整都包含其中(program of RBF )

主要功能是对数据进行自相关处理，然后通过带通滤波后进行解调，得到数据的主要特征。(The main function is to carry on the data correlation processing, and then through the band-pass filter after demodulation, get the main features of the data.)