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matlab计算样本熵源代码，用于度量时间序列的复杂度 (sampen)

qpsk signal generator and filter

自己编的5种调制信号，借鉴了主成分分析算法（PCA），用于信号特征提取、信号消噪。( Own five modulation signal, It draws on principal component analysis algorithm (PCA), For feature extraction, signal de-noising.)

分形维数的计算 ，分形理论逐渐实用，该程序会对大家有帮助的 (Calculation of the fractal dimension, fractal theory gradually utility, the program to be of help)

双谱分析获取信号成分，PCA获取信号主成分，剔除无用成分(PCA extracted bispectrum principal component, data compression, signal acquisition signal independent components, principal component.)

滤波器的相关实验（Matlab下的M文件）(Filter related experiments (Matlab under the M-file))

非线性拟合，可以根据已经数据，计算出对应的数据(Nonlinear fitting, can have data to calculate the corresponding data)

用MatLab编的锁相环,希望对大家有帮助(Series of phase-locked loop with MatLab, we want to help)

trisurf画一个三维球，并进行着色。(To figure a colored sphere in matlab function trisurf)

nickelcadmium used in battery for inverter simulation