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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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daima
arc engine初级代码开发,对初学者很有帮助。希望能帮助广大初学者。代码很短,但是很经典。下载后可以直接用。(arc engine primary code development, helpful for beginners. Hoping to help the beginners. Code is very short, but very classic. After downloading can be used directly.)
- 2014-10-19 11:30:11下载
- 积分:1
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timeseries.m
神经网络小波变换的MATLAB编程,用于实现其二维图像的小波变换处理(Neural network wavelet transform MATLAB programming for the realization of the two-dimensional image of the wavelet transform)
- 2020-06-29 13:00:01下载
- 积分:1
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wok
说明: 基本的一百个matlab源程序分享,欢迎下载,一一分享,(language of matlab important)
- 2010-03-18 19:16:29下载
- 积分:1
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SOGI-feedbackloop
二阶广义积分器加上反馈的模型,单一的二阶广义积分器会让信号一直放大,加上反馈可以让信号稳定( U4E8C u9636 u5E7F u4E49 u79EF u7EF u5206 u5206 u5668 u52A0 u4E0A u53CD u9988 u7684 u6A21 u578B uFF0C u5355 u4E00 U4F1A u8BA9 u4FE1 u53F7 u53F7 u4E00 u76F4 u653E u5927 uFF0C u52A0 u4E0A u53CD u9988 u53EF u4EE5 u8BA9 u4FE1 u53F7 u7A33 u5B9A)
- 2017-05-30 19:40:56下载
- 积分:1
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GraphicsAndGUIsWithMATLAB3rdEd2003Part2a
using Graphics in MatLab 02 a
- 2010-12-13 10:21:51下载
- 积分:1
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Attitude-SINS
姿态角仿真 MATLAB 捷联惯导 三阶泰勒 四阶龙格库塔(MATLAB simulation Attitude SINS fourth order Runge-Kutta third-order Taylor)
- 2011-06-12 01:30:17下载
- 积分:1
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遗传算法
一个遗传算法小例子,找到那个函数的最优解。(A small example of genetic algorithm to find the optimal solution of that function.)
- 2021-03-28 22:59:11下载
- 积分:1
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MIT
说明: 信息论,麻省理工大学的讲义/习题和答案,还有MATLAB的仿真(information theory lecture for MIT)
- 2010-04-16 10:59:03下载
- 积分:1
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hht_toolbox_20040808
希尔伯特黄变换,包括EMD分解,寻找极值和画图。(hilbert-huang transformation)
- 2013-05-06 09:12:09下载
- 积分:1