导弹半实物仿真中定时及数据同步问题研究  

Research on Time and Data Synchronization in the Hardware-in-the-loop Simulation for Missile

作　　者：李强[1] 王民钢[1] 

机构地区：[1]西北工业大学航天学院,陕西西安710072

出　　处：《计算机测量与控制》2010年第1期110-112,115,共4页Computer Measurement &Control

摘　　要：定时的精确性和数据同步是半实物仿真的关键技术;采用RTX实时扩展系统下的高精度定时器实现精确定时,分析了时钟同步和数据通信中存在的主要问题并对其实现方法进行了研究,给出了数据同步的详细算法和流程图;仿真结果表明,该半实物仿真系统定时精确,仿真周期内没有出现数据错帧和丢帧现象,保证了系统数据通讯的同步,对导弹武器系统研制具有重要的应用价值。Accuracy of time and data synchronization are the key techniques in the hardware-in the-loop simulation. RTX is used to give the accurate time, the main problem in time synchronization and data communication are analyzed, and the achieving method is researched, the algorithm and flow chart of data synchronization are given. The simulation results have proved that the hardware-in-the-loop simulation system has explicit real-time capability, and doesn＇t appear the phenomenon of data miss and data mismatch in simulation period, ensures the synchronization of data communication, and it is valuable for the design and research of missile weapon systems.

关 键 词：半实物仿真 RTX 定时 数据同步 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]