05573425HMMFunction

本程序完成地震信号的提取检测。以往都是利用地震信号的能量比，此处创新选择地震信号的过零点作为边缘提取的判断。新方法效果不错。(The process is complete extraction of seismic signal detection. Past, the energy ratio of seismic signal, where innovation and choice as the seismic signal zero-crossing edge detection judgments. The new approach is very effective.)

this code has an amplitude modulation with plots.

this document is a project documentation perfomed in matlab

说明：  基于灰色系统的预测，内涵数列预测和较难实现的包络预测(Prediction based on gray system, meaning the number of columns predictable and difficult to achieve the envelope prediction)

基于MATLAB的元胞自动机模型代码 sand_pile 沙堆规则模型 可直接使用(MATLAB-based cellular automata model code sand pile)

3点法计算数值微分，你可以试试看，3dianfa jisuan shuzhiweifen (calculate the numerical differentiation using the three point method)

说明：  神经网络处理信号，能提取出谐波频率和幅值(Neural network processing signal, can extract harmonic frequency and amplitude)

　k-means 算法接受参数 k ；然后将事先输入的n个数据对象划分为 k个聚类以便使得所获得的聚类满足：同一聚类中的对象相似度较高；而不同聚类中的对象相似度较小。聚类相似度是利用各聚类中对象的均值所获得一个“中心对象”（引力中心）来进行计算的。(K-means algorithm accept parameter k Then will the n of prior input data object is divided into k clustering to make won clustering meet: the same clustering the object in the similarity is higher And different clustering the object in the smaller similarity. Clustering similarity is using the cluster of the object in the mean gained a "center object" (the center of gravity) to calculate. )

说明：  K近邻算法（KNN）的matlab源代码，程序清晰易读(K neighbor algorithm (KNN) of matlab source code, and the program is clear and easy to read)

这是matlab命令大全，都是基本的matlab命令，希望对需要的朋友有些帮助。多多指教。(This is the matlab command Daquan, are basic matlab command, I hope to help some friends in need. Exhibitions.)