segmentation

this is main program of tomography modelling

利用自相关函数估计基音周期，函数jiyinzhouqi，输入参数是分析语音文件名和帧移，帧移在5~10ms(function jiyinzhouqi is used for estimate the period of fundamental tone.)

关于资源分配算法的OFDM仿真算法，在无线通信领域的。(An OFDM simulation algorithm for resource allocation algorithms in the field of wireless communications.)

基于matlab/simulink的直流闭环调速(based on Matlab/Simulink DC closed loop speed control)

for creating hsmm mode, you need some initialization code. hsmm initialization code can generate your hsmm model.

Low pass and High Pass filters aplied to images as sobel, prewitt, roberts, first derivative

说明：  求图论中的最短路径，哈哈求图论中的最短路径，哈哈……(Graph theory for the shortest path in graph theory Haha seeking the shortest path, ha ha ... ...)

说明：  用四阶古典RK方法解初值问题： 取h=1/8。每隔8步打印出数值解与真解的值（u(t)=(t^2)/2-t），画出它们的大致图像，并对产生的结果做出解释。 (with four bands classical RK method for initial value problems : from h = 1/8. Every eight-step numerical solution print and in the true value (u (t) = (t ^ 2)/2-t), they generally draw the images, as well as the results of an explanation.)

本源码仿真了删除信道下的编译码性能，结合自己的开发经验及学习体会，具有很高的参考价值(This source simulation the delete channel encoding and decoding performance, combined with its own development experience and learning experience, and has a high reference value)

批量读取降雨数据nc文件中的网格数据，基于广义极值分布进行降雨极值预估(Batch files read nc rainfall data grid data, based on estimates of rainfall extremes GEV)