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LinearBPM
这是一个简单的FFT为无电位1 +1 +1 Ð 薛定谔方程的光束传播方法。如果该软件灵活,允许引入的术语(如果是极少数需要包括色散效应高阶导数)。例如,如果一个人渴望解决的一个方程的形式:
(四/ dz的+ Ð ^ 2/dx ^ 2 - 0.25 * Ð ^ 3/dx ^ 3)== 0 Ÿ
它可以解决使用以下代码:
Ž = linspace(0,1,512)
x = linspace(-5,5,1024)
psi0 =进出口(- x的。^ 2)
Ð = D_lateral1D(十,2)-0.25 * D_lateral1D(十,3)
字段= LinearBPM(psi0,有D,Z)
凡D_lateral1D是一个函数,提供“取代”的微分算子。
这个函数是在一个非线性的BPM,我曾对(分步,谱方法等),将提交给我,当我完成他们的文件和组织功能更复杂的设置非常初期阶段。
(This is a simple FFT based beam propagation method for potential-free 1+1+1D Schrodinger equation. The software if flexible and allows to introduce high-order derivatives in the term (very handful if is needed to include dispersion effects). For example, if one desires to solve an equation in the form:
(d/dz+ d^2/dx^2- 0.25*d^3/dx^3)Y == 0
It can be solved using the following code:
z=linspace(0,1,512)
x=linspace(-5,5,1024)
psi0=exp(-x.^2)
D=D_lateral1D(x,2)-0.25*D_lateral1D(x,3)
field=LinearBPM(psi0,D,z)
Where D_lateral1D is a provided function that "replaces" the derivative operator.
This function is a very early stage in a more complex set of non-linear BPM functions that I have made (split-step, spectral methods, etc.) and I will submit them when I finish their documentation and organization.
Sorry for my English, I m eager for your comments.
)
- 2010-07-05 12:02:42下载
- 积分:1
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PSO
基本的粒子群优化算法代码 开发环境matlab7.0(The basic particle swarm optimization algorithm code development environment matlab7.0)
- 2010-10-19 15:09:18下载
- 积分:1
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spantree
code for the spanning tree.
- 2010-12-30 21:19:11下载
- 积分:1
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baudrate
AUTOMATIC BAUD RATE DETECTION FOR STANDARD BAUD RATES
- 2014-02-24 14:04:58下载
- 积分:1
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wireless
truetime 的例子,介绍无线通信过程,使用truetime2.0(truetime example, describes the process of wireless communications, use truetime2.0)
- 2010-08-21 21:13:22下载
- 积分:1
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simu_2nd
sig is a parameter scaling the innovation to the exogenous variables
- 2010-03-04 16:51:11下载
- 积分:1
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SVM
该工具箱包括了二种分类,二种回归,以及一种一类支持向量机算法
(1) Main_SVC_C.m --- C_SVC二类分类算法
(2) Main_SVC_Nu.m --- Nu_SVC二类分类算法
(3) Main_SVM_One_Class.m --- One-Class支持向量机
(4) Main_SVR_Epsilon.m --- Epsilon_SVR回归算法
(5) Main_SVR_Nu.m --- Nu_SVR回归算法(Support Vector Machine Matlab Toolbox 1.0
Platform : Matlab6.5/Matlab7.0
Reference : Chih-Chung Chang, Chih-Jen Lin. "LIBSVM: a Library for Support Vector Machines")
- 2011-08-18 22:35:49下载
- 积分:1
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Floydsuanfa
弗洛伊德算法,是现在流行的十大算法之一,用于数学建模(Freud algorithm, is one of the ten now popular algorithm used in the mathematical modeling)
- 2012-08-21 02:23:37下载
- 积分:1
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comm
构建了简单的通信系统,其间对载波相位进行了估计,同时在函数中给出了估计误差,还计算了误码率以及采用信道编码的误码率(Construction of a simple communication system, during which the estimate of the carrier phase, and gives in function of the estimation error, also calculated BER and the channel coding error rate)
- 2014-12-25 13:45:20下载
- 积分:1
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matlabexamples
基于matlab的马氏随机场图像图像处理(Matlab-based Markov random field image Image Processing)
- 2009-03-12 21:56:50下载
- 积分:1