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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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sqplab-0.4.4-distrib
SQPLab program in Matlab
- 2009-07-01 17:02:04下载
- 积分:1
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simplecharrec(III)-update34
optical character recocognition .
- 2009-12-28 23:25:16下载
- 积分:1
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5.--PSK-Demodulation-(Part-1)
Phase-shift keying (PSK) is a modulation process whereby the input signal, a binary PCM waveform, shifts
the phase of the output waveform to one of a fixed number of states. The demodulation process can be divided into three major subsections, as shown by Figure 4. First, since
the incoming waveform is suppressed carrier in nature, coherent detection is required. The methods by
which a phase-coherent carrier is derived from the incoming signal are termed, carrier recovery, and will be
covered first.
- 2014-02-25 16:01:21下载
- 积分:1
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cvx
说明: 凸规划建模系统,包含用户手册,有助于学习压缩感知。(Convex programming modeling systems, including user manuals, helpfull for learning compressed sensing .)
- 2011-02-27 23:00:51下载
- 积分:1
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Yuv2Mov
读取YUV格式的的文件,将YUV转换为matlab的Mov格式。(Read YUV format files to YUV conversion matlab Mov format.)
- 2013-01-10 20:38:04下载
- 积分:1
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pal
matlab is good prgm for simulations and coding.do try this one
- 2012-10-24 21:51:01下载
- 积分:1
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13898353MCMC
mcmc工具箱,让你领略统计之奥妙。mcmc工具箱,让你领略统计之奥妙。(mcmc toolbox)
- 2009-09-15 11:48:58下载
- 积分:1
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IP113-1-N
IP113 circuit application
- 2009-11-22 20:14:31下载
- 积分:1
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eye
this is a matlab code for human eye detection
- 2011-08-02 15:11:06下载
- 积分:1