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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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jantar.c
An easy implementation of the classic philosopher s dinner.
- 2010-09-21 04:58:31下载
- 积分:1
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matlab
Matlab命令速查Word版,对初学者英语不好者可以有点帮助(Matlab Command Quick Word version of English is not good for beginners who can help a little)
- 2011-08-15 22:38:33下载
- 积分:1
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C1
This code is related to the course Digital Communications.
It easily reproduces the error probability
as a function of the SNR per bit for QPSK and 16-QAM systems using MATLAB
- 2013-11-10 02:19:00下载
- 积分:1
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formfilters.m
code for filtering for DWT Chain process
- 2011-12-30 14:24:31下载
- 积分:1
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MPPT
带光伏阵列的最大功率跟踪(MPPT)控制仿真模型(Maximum Power Tracking (MPPT) Control Simulation Model with Photovoltaic Array)
- 2017-05-11 19:59:14下载
- 积分:1
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matlab
matlab自适应滤波器的程序.txt difenn de ru(matlab adaptive filter process. txt difenn de ru)
- 2008-04-23 14:37:46下载
- 积分:1
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aleatmulti.m
The code in matlab help user do statistical analysis of time series
- 2013-01-11 20:45:06下载
- 积分:1
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System-Identification
1、经典粒子群算法
2、一次最小二乘法(LS)
3、递推最小二乘算法(RLS)
4、确定性系统的递推梯度校正参数估计(RGC)
5、递推极大似然参数估计算法(RML)(1、Classical particle swarm optimization algorithm matlab code
2、Various types of system identification algorithm)
- 2013-08-30 21:13:06下载
- 积分:1
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IndSTR
indirect RST controller design
- 2015-01-31 18:58:42下载
- 积分:1