recovery-update

说明：  只要实现BBS的一些基本功能，对论坛进行管理和操作等(BBS as long as the realization of some of the basic functions of the Forum for the management and operation of such)

基于美国PARKER运动控制器开发的多轴运动控制界面，包括直线，圆弧插补等，界面友好，直观(PARKER motion controller based on U.S. developed multi-axis motion control interface, including linear and circular interpolation, etc., user-friendly, intuitive)

西电毕业论文，文章详细的阐述了直扩原理并且进行了仿真。扩展频谱技术有多种基本实现方式，本文主要介绍的是直接序列 扩频技术，特别针对二进制的 PSK调制解调技术，直接序列扩频系统的抗干 扰能力分析与直接序列扩频系统的同步方法，并进行了相关仿真分析。(Spread spectrum communications has many basic manners of implementation, this paper main introduces the direct sequence spread spectrum technology. The technology of digital signals’ modulation and demodulation, aiming at phase shift keying analyzing the capacity of resistance to anti-jamming of direct sequence spread spectrum system(DSSS) and the method of synchronization in direct sequence spread spectrum system base on the DSSS of the matlab’s simulation.)

AVR ATmeg16单片机的串口通信,这个程序非常实用，发送采用查询方式，接收采用中短方式。(This pramer is very good，it can transmit your massage you press on the software of PC.Try it and like it.)

关于无线传感器网络时间同步算法RBS算法的仿真(About wireless sensor network time synchronization algorithm RBS algorithm simulation)

可以控制标签的各种状态，包括大小，字体等等，只要你能想到(Can control a variety of status labels, including size, fonts, etc., as long as you can think of)

输入通道捕捉程序，适用于飞思卡尔JM60单片机，用于捕捉信号。(The input channels capture program for the Freescale JM60 microcontroller used to capture the signal.)

ATMEGA48 头文件 适用于 ICCAVR7.0 有些版本没有ATMEGA48的头文件(ATMEGA48 )

电机控制的第一手资料，非常全面仔细，可以对伺服控制系统的编码器有很深的了解。(Firsthand motor control, very comprehensive carefully servo control system can have a deep understanding of the encoder.)

针对多电机同步控制中传统环形耦合 PID 控制存在抗扰动性不强 扰动下同步误差较大等问题， 提出了一种带前馈控制的滑模变结构多电机相邻耦合控制策略， 建立了3 台永磁同步电动机同步控制仿真模 型， 通过 Lyapunov 稳定性理论证明了滑模控制算法的稳定性， 并进行了交变负载 突变负载实验 仿真分析和 实验结果表明， 该控制策略相比传统环形耦合 PID 控制 相邻耦合 PID 控制具有更高的同步精度和更好的抗扰 动性能(Abstract: Aiming at the problem of poor anti-disturbance capability and big synchronization error under disturbance of traditional ring-couple PID control method in multi-axis synchronization control，a sliding mode variable structure with feed-forward control for relative coupling control strategy is proposed． Three Permanent Magnet Synchronous Motor ( PMSM) for synchronized control simulation modl is set up． The stability of the proposed control algorithm is proved according to Lyapunov stability theory． The control strategy is tested by alternating load，and mutant load experiment． Simulation analysis and experimental results show that the presented control strategy has higher synchronization accuracy and better anti-disturbance capability in camparison with the traditional ring-couple PID control and relative-couple PID control．)