CHW3

XU等人做的关于GVF的小DEMO，里面比较了和传统蛇模型的不同之处以及GVF的优点，可以借此做些改进(XU and other people to do about the GVF small DEMO, which compared the traditional snake model and the differences as well as the advantages of GVF can be done to improve)

this file use hybrid kalman filter for estimation

It is Radar System design and signal prcessing code based on standard algorithm .this is vey important for biggener those who are working on Radar signal processing area.This code contain various chapter. this is basically chapter No7

说明：  最小树算法中的prim算法，本例是通用源码(Minimum spanning tree algorithm prim algorithm, in this case is a universal source)

基于matlab编写的的粒子群优化算法源码，主要用于解决优化问题~(Particle swarm optimization based algorithm matlab source code)

this file gives the parameters of a model estimated from given data. this is usfull in estimationa and forecasting

编写一个可以从一幅图像中提取一幅矩形子图像的函数。(Write an image can be extracted from an image of a rectangular sub-functions.)

对信号加窗，进行短时傅里叶变换，输出一个结构组，包含时间和频谱幅度(Signal windowed short time Fourier transform, and output a structure that contains the time and spectral amplitude)

介绍如何在Matlab中求解方程与函数极值，个人感觉讲的不错(how to solve equations and poles in matlab)

说明：  自己在编matlab C语言模块时的一些总结(Some of my experiences about matlab s C SFunction)