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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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train
htis it kdfjakjf dkfjdakf a
- 2011-04-24 01:03:22下载
- 积分:1
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adaboost_training_testing
adaboost的訓練data的方法,並利用在matlab上幫助使用者可以快速的訓練data。 (adaboost method of training data, and help users to quickly take advantage of training data on matlab.)
- 2014-12-30 11:49:20下载
- 积分:1
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Congestion-and-Price-Prediction-Under-Load-Variat
Congestion and Price Prediction
Under Load Variation BY MAtlab and simulink
- 2015-02-04 20:59:04下载
- 积分:1
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tangpeng
针对EMD方法的不足,计算目标和海洋回波的功率谱密度,电力系统暂态稳定程序,可以进行暂态稳定计算。( For lack of EMD, Calculating a target and ocean echo power spectral density, Power System Transient Stability Program, can be transient stability.)
- 2016-09-28 21:37:41下载
- 积分:1
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main
Matlab genetic algorithm to achieve the maximum and minimum demand function problem, this paper describes the procedures for all functions matlab source code for reference
- 2010-05-21 11:22:20下载
- 积分:1
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Basic-Segmentation
Segmentation methodes en matlab
- 2010-05-26 22:30:30下载
- 积分:1
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lms
这是一个自编的最小均方误差的自适应滤波器的程序(This is a self of the minimum mean square error of the adaptive filter procedures)
- 2010-09-23 17:13:36下载
- 积分:1
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daima
一共5个代码,其中aufgabe和lms的功能是输入一个脉冲信号,根据不同的系统参数,得出输出信号。 cordic是一个算角度旋转的方法。 gray和graydecode是输入一个数字,对应输出每次只变一位的2进制输出信号。 因为我还是个学生,可能代码比较简单,希望站长谅解,谢谢!我真心希望能够成为该站的一员,学习到有用的知识。(A total of five codes, which aufgabe and lms function is a pulse input signal, depending on the system parameters, derived output signal. cordic is a rotation angle calculation method. gray and graydecode is to enter a number, corresponding to a time become an output of two binary output signals. Because I was a student, you may code for relatively simple hope that owners understand, thank you! I really hope to be a member of the station, to learn useful knowledge.)
- 2009-12-07 07:37:10下载
- 积分:1
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TSP
TSP( Traveling Salesman Problem) is a typical NP complete problem ,genetic algorithm is the perfect method for solving NP complete problem. (TSP (Traveling Salesman Problem) is a typical NP complete problem, genetic algorithm is the perfect method for solving NP complete problem.)
- 2008-05-17 23:51:47下载
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