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MPEG coding, signal processing, compression

这是一个用matlab来实现的QAM,QPSK程序，可显示星象图，调制解调的信号波形和频谱波形(This is a matlab achieved by QAM, QPSK procedure shows astrology chart, modulation and demodulation of the signal waveform and spectrum waveform)

matlab程序：用最小二乘法拟合椭球曲面(matlab program: using least-squares fitting ellipsoid surface)

K均值算法，适合于初学者。包括matlab源代码，测试数据等。(K-means algorithm)

程序实现了生成决策树并使用决策树对离散特征向量进行分类。在判断是否要继续生成叶节点时采用entropy来作为impurity的measurement.(Program and use the decision tree decision tree to generate discrete feature vectors for classification. In determining whether to continue generating leaf nodes using entropy as the impurity of the measurement.)

验模态分解（Empirical Mode Decomposition,简称EMD）是一种自适应信号分解方法,主要应用于非线性非平稳的信号。整体平均经验模态分解（Ensemble Empirical Mode Decomposition,简称EEMD）解决了EMD中出现的模态混合问题。(Ensemble Empirical Mode Decomposition)

matlab在线听音乐程序源码 可供研究(listening music online by matlab)

说明：  三点最小覆盖圆法,给出三点坐标，可以求得其三点的最小覆盖圆的圆心坐标和半径(mincircle of three points)

a matlab implementation that draws a circle

Matlab的经典入门级教材。很适合初学者入门学习使用(Matlab' s classic entry-level teaching. Very suitable for beginners learning to use Getting Started)