heat2D_v2

The ouput is the TE/TM band structure (first five bands) along pricipal directions (G-X-M-G) of a square-lattice photonic crystal with unit cell consisting of a substrate of "epb" relative permittivity with circular rods(holes) of "epa" relative permittivity and radius "r". Usage is SharifPWE_BZplot(N,RES,r,epa,epb) N: N in PWE algorithm (number at which the summations are truncated) RES: number of the divisions on every side of BZ#1 r: normalized radius of the circle of holes/rods (0<r<0.5) epa: relative permittivity of holes/rods epb: relative permittivity of the substrate Written by Amir Hosseini for the Course Photonic Crystals (C) Copyright 2005 School of Electrical Engineering Sharif University of Technology All Rights Reserved

本文为Stephen J.Chapman《MATLAB 编程（第二版）》英文影印版的中文译本，这本 书对初学者很好的入门教材(This article Stephen J.Chapman MATLAB Programming (second edition), the English version of the Chinese translation of photocopying, this A good book for beginners introductory textbook)

TM 波 的 入 射(the input of TM wave)

文件中包含了Turbo码和卷积码误码率的对比，其中Turbo码采用了BCJR译码算法，迭代次数分别为1、2、3、4次。文件中包含了源代码和分析文档(File contains a comparison of Turbo code and convolution code BER, which Turbo code decoding algorithm used BCJR iterations respectively 1,2,3,4 times. File contains the source code and documentation analysis)

通过网络的邻接矩阵，获取同配系数。同配系数是复杂网络中一个重要参数。(Through the network adjacency matrix to obtain the same allocation factor. With the distribution coefficient is a complex network, an important parameter.)

mathematical model of asynchrounous machine

这个程序只合适计算k=1 (也就是Lcd=1）,对于其他k值，一些参数要做适当变化。这也是soliton format 不宜用于非线性耦合开关的一个原因。它使问题复杂化。这个程序是计算孤子格式化下的非线性薛定格方程组，程序中的方程与我们之前的博文提供的程序的方程不同。我们当初做这个仿真的目的，一方面要重复 S. Trillo, S. Wabnitz, E. M. Wright and G. I. Stegman, 在他们论文“Soliton switching in fiber nonlinear directional couplers.” Opt. Lett. Vol.13, No.8, pp672-674(1988) 的仿真结果，以确保我们程序是正确的。另一方面要以己之矛攻己之盾。当时，孤子开关用孤子归一化的非线性薛定格方程描述已经广泛被接受和使用。很多人因为他们孤子开关的工作，也获得了重要的学术地位，要想发一篇跟他们之前的工作不同的观点的文章是很困难的。那些审稿的人，不是他们本人，就是学生或粉丝。图1中的曲线跟我们其它文中的曲线有很大不同，这是因为在这里输入脉冲是bsech(bt),因而输入脉冲的脉宽跟脉冲幅度一起变化，而其他地方我们只考虑脉冲幅度的变化，因为脉宽的变化已经包含在参量Lcd 中了。(This Matlab file solves the nonlinear Schrodinger equation in soliton format)

Recursive least squares递归最小二乘算法(Recursive least squares)

number of simulations to run

This is a matlab program for solving finite quantum well schrodinger equation