fit_ellipse

本函数在matlab实现阻抗圆图，通过调用switch（）函数，可以得出传输线的反射系数，以及支节匹配等参数，本函数可以实现单、双和三支节匹配。(The realization of the impedance function in matlab circle map, by calling the switch () function of transmission line can be drawn of the reflection coefficient, as well as the support section to match the parameters, this function can achieve a single, double and three matching section.)

说明：  一、 实验目的 在计算机上用迭代法求非线性方程地f(x)=0的根。 二、 实验平台 操作系统：Microsoft Windows Vista SP1 数学软件：Matlab7.0.0.19920(R14) (First, the experiment was on the computer using iteration method to nonlinear equations f (x) = 0 root. Second, experimental platform, operating system: Microsoft Windows Vista SP1 mathematical software: Matlab7.0.0.19920 (R14))

通信原理基于Matlab的计算机仿真教程:北京邮电大学出版社，一本很好的教材(Communication theory of computer simulation based on Matlab tutorial: Beijing University of Posts and Telecommunications Press, a very good textbook)

简单的实例，介绍了基本的用法，适合有一定基础的学者，可以巩固自己的知识(Simple example, describes the basic usage, there is some basis for scholars, can consolidate their knowledge)

通过用MATLAB软件解决七参数转换转换的编程代码(Seven parameter transformation)

一种基于稀疏变量的欠定盲分离算法，很好用，大家试一下。(Underdetermined blind separation algorithm based on sparse variables)

用于离散信号的盲反卷积，主要针对一维离散信号，可以进行二维扩展。(Discrete signals for blind deconvolution, mainly for one-dimensional discrete signal can be extended to two-dimensional.)

基于levelset的测地活动轮廓 matlab源码，可实现多目标轮廓的 提取。对噪声图象具有良好的鲁棒性。但是计算量较大，耗时过多(levelset based on the geodesic active contour Matlab source, more achievable goal contour extraction. Image noise is a good robust. However, the large amount of calculation, time-consuming excessive)

PF_KEY user interface, this is defined by rfc2367 so do not make arbitrary modifications or else this header file will not be compliant.

图像的颜色特征提取，通过选择合适的阈值，将对象从复杂背景中提取出来(Image color feature extraction, by selecting the appropriate threshold, the object is extracted from complex background)