cheng-xu

运用MATLAB解决一些城市之间的最短路程问题.(含有MATLAB源代码)(Use MATLAB to solve some of the shortest distance between cities problem. (Containing MATLAB source code))

并用S函数编制相间距离保护和接地距离保护算法程序,构建相应的保护模块,实现了三段式距离保护。仿真结果表明,所建立的三段式距离保护模型能够正确反映在保护区内的不同类型的短路故障并发出动作信号,使断路器跳闸实现输电线路的保护功能。 (A distance protection simulation model of transmission line was established by using Simulink and SimPowerSystem toolbox inMatlab. S-function was used to programe the distance protection of phase faults and earth faults and the relevantprotectionmodelswere created to build distance protection.The simulation results show that the three-stage distance protectionmodel can respond to allkinds of faultswithin protection zones correctly and send correct signal to the breaker of the line. )

this file is about OPC algorithm

首先声明此并非原创！（侵删！）但是这个资源非常非常难找。是我从外网找了很久down下来的。地球-火星发射机会搜索并做出著名的猪排图（porkchop图）。内有教程（英文），非常清楚。另外我也将星历文件de421.bin整合进去了。可以直接运行。(porkchop , DE421, Earth-Mars)

说明：  根据轴承实验数据，处理轴承内外圈的实验数据，根据频谱进行数据分析。(According to the bearing experimental data, the experimental data of bearing inner and outer rings are processed, and the data are analyzed according to the spectrum.)

二阶耦合系统的解耦控制，前馈解耦，带smith预估补偿解决大滞后问题。(Decoupling control system coupled second order feedforward decoupling.)

canny双阈值边缘检测方法 可以对图像进行边缘检测(canny edge detection dual-threshold edge detection can )

自己收集到的指纹预处理的各种方法，推荐给需要的朋友们。(Their fingerprints collected from the various methods of pretreatment, required to recommend friends.)

本程序用于仿真QPSK的解调(procedures for the simulation of the QPSK demodulator)

说明：  描述非线性电路的分叉图，基于MATLAB的源程序(fencha)