BPalgorithm

least square estimation of system identification

施瓦茨变换代码，专门用于多边形的变换，matlab代码(Schwartz transform code, dedicated to the transformation of the polygon, matlab code)

说明：  Matlab image inpainting using deep learning

MATLAB程序设计与典型应用(含源程序)(MATLAB programming and typical applications (including source code))

用有限时域差分方法编写的光子晶体一个程序，计算了透射系数。( applies finite difference time domain method to analyze the band gap of Two-Dimensional cirque Photonic Crystal. )

本文详细介绍了matlab对txt文件数据的导入导出问题(This paper describes a txt file matlab for data import and export issues)

In recent years, stepping with the popularization of smart phone and the development of mobile communication infrastructure, the conditions for ubiquitous computing society become more and more complete. In the vision of ubiquitous computing society, LBS (Location Based Service) that provides an added value to an unprecedented user experience has been paid a great deal of attention by mobile operators all over the world. As the core technology for LBS, various positioning systems have been studied extensively. For the outdoor environment GPS is mature and common. However, the performance of GPS in indoor environment is bad. Moreover, currently there is no technique whose accuracy and cost are appropriate for deployment in huge areas.

快速EMD分解，用了相关距离来解决问题，让算法的运行速度加快(EMD FAST)

watermarking using lsb replacement

粒子群滤波算法及改进算法代码，包含代码说明(Particle swarm optimization algorithm and improved algorithm code, including code description)