singular-switched-system

利用matlab编程，实现鼠标对目标轮廓的编辑和选取，具有一定的实用价值(Using matlab programming, the realization of the mouse on the target contour editing and selection, has a certain practical value)

全国大学生数学建模2004年B题的程序。用Matlab编程。运行良好(Mathematical Contest in Modeling 2004 B title process. Using Matlab programming. Running well)

matlab入门程序90例 简单直接程序，通过matlab直接打开 非常适合初学者 (matlab entry procedures for 90 cases of simple and direct process, through direct open matlab very suitable for beginners)

mit的MATLAB导论教程，适用于MATLAB初学和基础应用。(mit Introduction to the MATLAB tutorial for beginners and the basis for the application of MATLAB.)

说明：  《MATLAB R2007基础教程》 清华大学出版社,包含电子课件,实例原文件,习题答案,都是基于matlab实现( MATLAB R2007 Essentials Tsinghua University Press, contains the electronic courseware, examples of the original documents, exercises answers are based on the realization of matlab)

说明：  经典算法的程序代码，微分方程的计算方法等等(Classical algorithm code, the calculation of differential equations, etc.)

鸽群优化算法，来源算法发明者学术主页，供大家使用。(Inventor deterrent optimization algorithm, the basic version, source, for all to use.)

一种好的数学优化算法，可以既快又好的求得局部最优值。(A good mathematical optimization algorithms, can be fast and achieve good local optimum value.)

This M Code simulate the effects of clipping and filtering on PAPR PAPR reduction in OFDM-based wireless standard.Also the performance of BER versus SNR of original OFDM signals with PAPR reduction based on clipping and filtering schemes over AWGN channel is evaluated. The simplest and most widely used technique of PAPR reduction is to basically clip the part of signals that are outside the allowed region.Clipping methode introduces both in band distortion and out of band radiation into OFDM signals which degrades the performance including the BER and spectral efficiency.Filtering can reduce out of band radiation after clipping although it can not reduce in-band radiation distortion.However, clipping may cause some peak regrowth so that the signal after clipping and filtering will exceed the clipping level at some point.To reduce peak regrowth a repeated filtering and clipping operation can be used to obtain a desirable PAPR at a cost of computational complexity increase.

说明：  this code is about newton algorithm and can solve .