Speech-signal-short-time-analysis

说明：  超全的模式识别Matlab源程序，涉及几乎所有常见算法，还有图形界面，可以图形显示分析结果(Ultra-wide recognition of the Matlab source code, involving almost all the common algorithms, as well as a graphical interface, you can graph display the results of the analysis)

超宽带程序，应该对学习超宽带的朋友有用，希望能多交流(UWB procedures, the study should UWB useful friends hope more exchanges)

使用matlab读写Excel内容方法，最详细，可以作为参考使用。(Use matlab to read and write Excel the contents method, the most detailed, can be used as a reference.)

采用matlab软件进行实现的遗传算法优化的BP神经网络。(Using genetic algorithm to optimize BP neural network to realize matlab software.)

add sub bytes through incrypting image

1,、设置变量和参量： 　　X(n)为输入向量，或称为训练样本 　　W(n)为权值向量 　　e(n)为偏差 　　d(n)为期望输出 　　y(n)为实际输出 　　η为学习速率 　　n为迭代次数 　　2、初始化，赋给w(0)各一个较小的随机非零值，令n=0 　　3、对于一组输入样本x(n)和对应的期望输出d，计算 　　e(n)=d(n)-X^T(n)W(n) 　　W(n+1)=W(n)+ηX(n)e(n) 　　4、判断是否满足条件，若满足算法结束，若否n增加1，转入第3步继续执行(, set the variables and parameters: X (n) is the input vector, otherwise known as the training sample W (n) for the weight vector e (n) for the deviation d (n) is the desired output y (n) is the actual output η is the learning rate n is the number of iterations)

利用和声搜索算法对IEEE33节点进行无功优化，采用前推回代潮流计算方法(Harmony search algorithm on IEEE33 node reactive power optimization, flow calculation method using forward and backward substitution)

matlab的经典书籍，百看不厌。 感兴趣的网友可以下载学习。(matlab classic book , never get tired . Interested users can download learning . )

read image by matlab in processing

本程序实现的功能是将儒略日转化为公历年月日(The implementation of the program function is to convert a Julian day to the Gregorian calendar (date) (month) (year) )