code

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. )

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)

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)

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)

this is the active noise developed by running an active sysetem

anything else .. nothing impoortant

Parallel Kalman Filtering based NLOS Localization in Wireless Sensor Network

this code is about one of the filtering algorithms in image processing.

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)

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)