off-line holography

MATLAB_主要函数指令表(功能)MATLAB_主要函数指令表(功能)MATLAB_主要函数指令表(功能)MATLAB_主要函数指令表(功能)(The main function of MATLAB_ instruction table (feature))

this is about pattern recognition.

说明：  蒙特卡罗模拟随机数是最好的方式，本程序设计在552nm脉冲后，再一左一右的657nm冷却脉冲，测试激发达到100 的概率，尤其考查蓝、绿及近红外波段(MATLAB 6.5 Monte Carlo simulation cool3.m This simulation cycles "num" number of atoms "steps" times, with a cooling sequence of a 657 nm cooling pulse from the right, then a 657 nm cooling pulse from the left, followed by a 552 nm quenching pulse. Then the sequence is repeated with cooling pluses first incident from the left. Switching the pulse direction order helps maintain symmetery in the resultant velocity distribution. The probability of quenching the excited state is no longer 100 , it is "percent" Random blue, IR, and green photon recoil kicks have been included in the simulation due to the quenching. )

一个有限长序列,用matlab实现其N=100的DFT。给出其幅度与相位曲线，并讨论其相关性质。 (A finite-length sequence, using matlab to achieve its N = 100 of the DFT. Given its magnitude and phase curves, and discuss their related properties.)

用MATLAB读取obj格式的三维文件，实现了把obj读入matlab中并以点的形式储存，可以参考学习(Read obj format 3D files using MATLAB, obj read into matlab and to the point in the form of storage, you can refer to learning)

optimization variable function

Reconstruction of magnetic resonance images from data not falling on a Cartesian grid is a Fourier inversion problem typically solved using convolution interpolation, also known as gridding. Gridding is simple and robust and has parameters, the grid oversampling ratio and the kernel width, that can be used to trade accuracy for computational memory and time reductions. We have found that significant reductions in computation memory and time can be obtained while maintaining high accuracy by using a minimal oversampling ratio, from 1.125 to 1.375, instead of the typically employed grid oversampling ratio of two. When using a minimal oversampling ratio, appropriate design of the convolution kernel is important for maintaining high accuracy

采用分步傅里叶方法对NLSE 进行了求解，并在归一化和功率补偿条件下模拟和分析了输入脉冲为双曲正割脉冲，高斯脉冲，超高斯脉冲传输对比情况，以及一到三阶双曲正割光脉冲条件下光脉冲传输演变情况(Using split-step Fourier method NLSE was solved, and in the normalization and power compensation under simulation and analysis of the input pulse for the hyperbolic secant pulse, Gaussian pulse, the comparison of super-Gaussian pulse transmission, and a to the three conditions, the hyperbolic secant pulse evolution of optical pulses)

Higher-Order Spectral Analysis (HOSA) Toolbox

该程序可以实现信号的分形计算，从而求解出所求信号的分形函数，在信号非线性研究中有很重要的作用。(The program can calculate the fractal signal, thus solving the request signals a fractal function, the study of nonlinear signal has a very important role.)