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QPSK的锁相环程序，在MATLAB环境下编写的，用来进行QPSK通信系统的仿真和实际信号载波同步的提取(QPSK PLL program, written in the MATLAB environment, QPSK communication system used for simulation and the actual extraction of the signal carrier synchronization)

光纤端面的辐射场,光纤与光纤的连接及其光功率损耗(Fiber end face of the radiation field, optical fiber and optical fiber connections and their optical power loss)

针对无线射频识别(radio frequency identification，RFID)系统的多标签碰撞问题，在分析RFID标签编码规则的基础上，提出根据标签编码规则进行标签分组和标签预淘汰的方法，在读写器识别的初始阶段根据特定的规则淘汰部分标签，从而减少系统工量，提高系统工作效率.实例证明：在不增加标签结构复杂度的基础上，充分利用已有的有效信息能够有效减少阅读器的查询次数和系统的总通信量．(For radio frequency identification (radio frequency identification, RFID) system is a multi-tag collision problem, based on the analysis of the RFID tag encoding rules based on the proposed label grouping and labeling pre-elimination method according to the label encoding rules identified in the initial reader phase-out of the label according to specific rules, thus reducing the amount of system engineering, to improve system efficiency examples demonstrate: the label without increasing the complexity of the structure on the basis of full and effective use of existing information can be effective in reducing the number of queries and reader total traffic of the system.)

nous intéressons à la détection et à la localisation de défauts dans des systèmes dynamiques en combinant simultanément l’analyse en composantes principales et la transformée en ondelettes. Ce procédé d’analyse et de traitement, connu souvent sous le nom de MSPCA, permet à la fois l’extraction de la corrélation entre les différents capteurs (approche ACP) et le calcul de l’auto corrélation pour chaque capteur (approche ondelette).

使用matlab编程解一般代数方程 线性方程组、线性微分方程。(Matlab programming solutions using the general algebraic equation of linear equations, linear differential equations.)

this matlab code for convaloution 2d filter,best for beginer

matlab 关于主成分分析的详细代码，附带数据及gui界面文件，可直接运行(matlab on principal component analysis of the detailed code , files with data and gui interface can be run directly )

protect digital images using secure hash

间接观测平差(距离) 请输入未知数系数矩阵 请输入观测值 (Indirect observation adjustment (distance) Please enter the unknown coefficient matrix Please enter the observation)

Simple program to nothing to do