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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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DudaPRMatlab
模式识别作业部分答案中文和英文版 以及相关程序MATLAB源码(PR homeword Matlab codes)
- 2010-10-22 17:08:18下载
- 积分:1
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PhC
有详细说明,方便新手学习,本程序为计算光子晶体的透过率,反射,和吸收(Detailed instructions to facilitate novice learning)
- 2019-05-19 10:14:39下载
- 积分:1
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randomnum
一个关于随机数产生的matlab仿真源码程序。(A random number generated on the source code matlab simulation program.)
- 2010-10-24 10:07:21下载
- 积分:1
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Entropy_detection
Entropy Detection in Cognitive Radio
- 2010-05-19 13:18:11下载
- 积分:1
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circle_fit
matlab code for Circle fit
- 2015-02-03 13:09:44下载
- 积分:1
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Phase-and-frequency-and-mode-shape
phase
its about phase of a signal or imf that you can find it for another things
also in this code you can fine the amplitude of a complex number
- 2015-02-11 19:20:31下载
- 积分:1
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实现一维和二维分世界傅里叶变换
实现一维和二维分世界傅里叶变换,含有对LFM信号的实例仿真。(Realization of one and two dimensional Fourier transform divided world, contain instances of LFM signal simulation.)
- 2015-04-19 12:28:45下载
- 积分:1
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FEMM_2004
simple FEMM code based on matlab
2009
- 2009-12-19 11:35:22下载
- 积分:1
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compensation
说明: 捷联惯导系统传递对准MATLAB程序,建立一种新模型,并进行补偿。(SINS MATLAB transfer alignment procedures, the establishment of a new model, and compensation.)
- 2008-09-18 16:21:44下载
- 积分:1