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这是matlab中的时频分析工具箱，希望大家用得上。(This is a matlab in time-frequency analysis toolbox, I hope everyone useful.)

Kai Borre等著、 杨东凯，张飞舟，张波 译。英文版及相应的PPT学习文件和代码.(A Software-Defined GPS and Galileo Receiver (丹麦)Kai Borre Nicolaj Bertelsen Peter Rinder Soren Holdt Jensen (美)Dennis M. Akos )

说明：  ：将信息论中熵的概念应用到特征选择中，定义了两种信息测度评价特征——误差熵和混叠熵，然后阐述了两种定义的不 用物理意义，分析了计算熵中最关键的区间划分问题，并提出一种较好的区间划分方法。(: The concept of entropy in information theory applied to feature selection, the definition of information measure evaluation of two features- error entropy and mixing entropy, and then describes the two definitions do not have the physical meaning of the calculation of entropy in the range of the most critical partitioning problem and propose a better method of interval division.)

本程序为产生多途信号，并对多个信号进行叠加，并混入一定信噪比的噪声。然后对得到的信号进行频谱分析和相关分析。(The procedure for producing multi-path signal, and the superposition of multiple signals, and mixed with a certain signal to noise ratio of the noise. Then the resulting signal spectrum analysis and correlation analysis.)

复数信号的fastICA算法.希望对大家有所帮助哦(plural signals fastICA algorithm. We hope to help oh)

DC/DC and DC/AC PWM Converters This demonstration illustrates use of the Universal Bridge and Discrete PWM Pulse Generator blocks. It also demonstrates harmonic analysis of PWM waveforms using the Powergui/FFT tool.

半正定矩阵cholesky方法将其分解为两个上下三角矩阵相乘的形式。matlab自带的函数只能分解正定矩阵。并且给出例子。(Semi-definite matrix cholesky method be decomposed into two upper and lower triangular matrices form. matlab built-in function can only be positive definite matrix decomposition.)

牛顿拉夫逊算法进行潮流计算,希望能对大家的学习有所帮助，(Newton Raphson power flow calculation algorithm the hope that it can help everyone to learn,)

lorenz模型的敏感性试验（有图显示）：说明了lorenz模型的非线性和混沌性。(lorenz model sensitivity test (with map display): Description of the lorenz model nonlinearity and chaos.)

说明：  仿真结果表明，应用LMS算法的自适应滤波器不仅可以实现对信号噪声的自适应滤除，还能用于系统识别。(Results of simulation show that this kind of adaptive filter not only can be used to filter the signal noise, but also recognize the system.)