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GMM工具箱，第二部分。包含GMM建模的各种函数。(GMM toolbox, part II. GMM modeling contains a variety of functions.)

估计功率谱密度的平滑周期图是一种计算简单的经典方法，其主要特点是与任何模型参数无关，是一种非参数化的方法。(Estimated power spectral density is a smooth periodogram simple classical calculation method, the main feature is not related to any model parameter, is a non-parametric methods.)

改进的育群算法，结合SVM用于语音识别,,识别率明显提高(Improved fertility swarm algorithm, combined with SVM for speech recognition)

计算损伤结构前后的响应，对已结构的分析具有很好的效果(After calculating the response of the structure damage, the structure analysis of a good effect)

matlab 本身没有箭头功能，只有梯度，梯度不能精确，这是编写的箭头功能，可以精确定位箭头三维位置(matlab function itself has no arrows, only gradient, the gradient is not accurate, it is written in the arrow function, you can pinpoint the location of the arrow D)

说明：  计算均方误差MSE信噪比SNR峰值信噪比PSNR绝对平均误差的matlab函数(Calculate the mean square error MSE, SNR is the peak signal to noise ratio PSNR absolute average error of Matlab functions)

电子工业出版社 《数字信号处理》第2版课后题MATLAB 5-7题(Electronic Industry Press Digital Signal Processing 2nd edition title after title MATLAB 5-7)

这是一个用liblinear进行分类的例子，需要有liblinear环境(Using liblinear to do classification task)

基于神经网络的y=|sin（x)|的matlab编程(Based on neural network y = | sin (x) | in matlab programming)

矩量法求半波振子天线的阻抗,与理论值偏差较小，比较精确(mom to calculate the z of the antenna)