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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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Ksam
新颖的K均值聚类算法,以SAM作为两个向量的距离度量,取代原始的向量间的距离(Multi-spectral K-mean clustering with SAM as spectral similarty)
- 2010-12-04 16:54:21下载
- 积分:1
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MathWorksLearnMatlab
一本学习matlab7.0的好书,不过是英文版,需要耐心看。(a study matlab7.0 books, but in English, requires patience to see.)
- 2007-04-25 09:50:45下载
- 积分:1
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概率潮流计算
说明: 为考查各种不确定性因素对系统运行的影响,需要大量地重复性潮流计算。结合概率理论形成的概率潮流计算能够充分考虑这些不确定性因素。由概率潮流计算可以得到节点电压、电流、支路潮流的均值、方差、概率密度函数等统计特性,从而更全面地反映系统运行状况。(In order to examine the impact of various uncertainties on system operation, a large number of repetitive power flow calculations are needed. The probabilistic power flow calculation based on probability theory can fully consider these uncertainties. Statistical characteristics of node voltage, current and branch power flow, such as mean, variance and probability density function, can be obtained from the calculation of probabilistic power flow, thus reflecting the operation status of the system more comprehensively.)
- 2019-10-03 14:28:51下载
- 积分:1
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Arithmetic
比较经典点的matlab算法,适合研究matlab算法的人,()
- 2008-05-05 22:34:42下载
- 积分:1
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hpfilter
高频强调滤波,本实验的目的十八高频强调滤波和直方图均衡化结合起来,来区分对图像处理的差别!(High-frequency emphasis filter, the purpose of this study eighteen high-frequency emphasis filter and histogram equalization combined to distinguish the difference of image processing!)
- 2011-05-22 13:43:28下载
- 积分:1
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fuliye
遥感图像傅立叶滤波,MATLAB版本,图像处理(Remote sensing image processing high-pass filter, low pass filtering, image processing)
- 2013-09-24 22:28:24下载
- 积分:1
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wf
说明: 实现多通道后滤波技术,即经典的ZK算法,支持两路以上麦克风阵列的通道。(After the implementation of multi-channel filtering technique. Absolute classic.)
- 2009-03-28 11:57:08下载
- 积分:1
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VTKread_v2
Read .vtk files into matlab enviornment.
works only for binary file type
- 2009-06-24 23:40:46下载
- 积分:1
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essing
说明: 利用C_Builder与Matlab实现实时数据的获取与处理(Matlab using C_Builder and real-time data acquisition and processing)
- 2011-03-29 18:43:30下载
- 积分:1