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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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16QAM
说明: 16QAM调制,采用matlab实现,简单的调制过程,可以直接下载使用(16QAM modulation, using matlab implementation, a simple modulation process, you can directly download)
- 2010-03-31 18:08:27下载
- 积分:1
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wavelet_tour
我又找到的一个matlab的最新工具箱,能解决很多问题,由于内容很杂,有这方面需要的朋友不妨下载看看,仔细研究一下,或许有新的发现(I found one of the latest Matlab Toolbox can solve many problems, since the content is very complicated, and a need of a friend may wish to download look carefully, there may be a new discovery)
- 2006-05-18 21:01:09下载
- 积分:1
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single_CR_Pd_vs_Pf
matlab环境下单个节点能量感知的检测概率与虚警概率(energy of a single node under matlab perceived probability of detection and false alarm probability)
- 2021-03-04 09:19:32下载
- 积分:1
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firsubband_g
this is the active noise developed by running an active sysetem
- 2011-08-06 20:47:22下载
- 积分:1
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untitled
anything else .. nothing impoortant
- 2011-09-04 14:24:28下载
- 积分:1
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06643301
Parallel Kalman Filtering based NLOS Localization in Wireless Sensor Network
- 2014-10-13 02:27:22下载
- 积分:1
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NotchFilter
this code is about one of the filtering algorithms in image processing.
- 2015-04-01 22:59:45下载
- 积分:1
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Untitled
曲柄滑杆的运动描述以及其仿真动画描述仿真模型(Description of the slider crank movement and its simulation of animated simulation model described in)
- 2009-12-31 18:56:03下载
- 积分:1
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MATLAB
说明: matlab程序设计的应有,是程序设计入门的好帮手(matlab programming should be, is a good helper program design entry)
- 2010-04-22 22:07:48下载
- 积分:1