extr

This is code for gravitational search algorithm

ARM开发板详细原理图，可直接用由开发arm板，本人试过(ARM development board detailed schematic diagram can be directly used by the development arm plate, I tried)

matlab 做图像平移和旋转 用的是领域插值法 二次线性插值 另外还有一些调用matlab自带函数的编程(matlba image shift and rotate)

VFC计算vector field convolution,类似于gvf矢量场，用于图象分割(VFC calculated vector field convolution, similar to gvf vector field for image segmentation)

带有偏振模色散的光纤系统中基于lms算法的前馈均衡补偿系统(Optical fiber with polarization mode dispersion system lms algorithm based on feed-forward compensation system balance)

计算光纤里的非线性光束传播，解薛定谔方程，包含了二阶色散、损耗等，功能很强大(Calculation of the nonlinear beam propagation in the fiber, solving the Schrodinger equation, including second-order dispersion, loss, very powerful)

是一个matlab如何编写龙格库塔的程序。他用来求解常微分方程，具有很好的优势。(matlab programming language. Single precision of the Runge- Kutta- Kiel in the initial conditions for n simultaneous differential equations very Good.)

遗传算法在pid控制器设计过程中的应用，用matlab代码写的(GA in PID controller)

说明：  本书以单元练习的形式，从MATLAB最基本的问题入手，循序渐进，逐渐过渡到较为复杂的数学问题、信号分析问题、力学问题和电学问题的求解，将MATLAB的学习贯穿在解决不同领域实际问题的过程当中。每一个练习都结合问题，介绍与之相关的MATLAB使用知识。全书50个练习基本上涵盖了MATLAB的主要功能。本书不仅是一本初学者可以用来入门的教程，而且对于专业设计人员来说，也是一本内容翔实、可供借鉴的参考(In the form of unit practice, this book starts with the most basic problems of MATLAB, gradually transits to the solution of more complex mathematical problems, signal analysis problems, mechanical problems and electrical problems, and runs the learning of MATLAB through the process of solving practical problems in different fields. Each exercise is combined with the problem, and introduces the knowledge of MATLAB. The 50 exercises in the book basically cover the main functions of MATLAB. This book is not only a tutorial for beginners, but also a reference for professional designers)

说明：  时移多尺度排列熵一种应用于非线性非平稳信号的特征提取方法，能够有效的处理信号特征信息。(Time-lapse multiscale permutation entropy is a feature extraction method applied to non-linear non-stationary signals, which can effectively process signal feature information.)