一种改进的DIS对象同步策略  

Modified Strategy of Object Synchronization for DIS

作　　者：郭蕴华[1] 陈定方[1] 

机构地区：[1]武汉理工大学智能制造与控制研究所能源与动力工程学院,武汉430063

出　　处：《系统仿真学报》2007年第18期4186-4188,4192,共4页Journal of System Simulation

基　　金：国家"863"计划基金资助项目(2003AA414011)

摘　　要：针对DIS中的某些缺点,提出了一种改进的DIS对象同步策略。基于可变的PDU(Variable Protocol Data Unit,VPDU),应用面向对象的RTTI技术,实现了通信层与仿真应用层的分离。采用一种简单的数据过滤机制和分类别的数据分发方法,并结合推算定位方法,提高了系统的实时性和可靠性。仿真应用实例表明,这种对象同步策略具有较好的实用性,可以用于自行高炮防空作战仿真等演示验证项目。A modified strategy of object synchronization for DIS was proposed to correct some disadvantages of DIS. Based on VPDU （Variable Protocol Data Unit, VPDU）, the separation between the communication layer and the simulation modeling layer was implemented by the Object Oriented RTTI technology. By a simple data filtration mechanism and classified data distribution method, and considering the Dead Reckoning algorithm, the real-time performance and the reliability were improved. The simulation application shows that the strategy of object synchronization has preferable practicability, and is applicable to the demonstration project such as aerial defense simulation of horseless antiaircraft artillery.

关 键 词：分布式交互仿真 运行时类型信息 对象同步 数据过滤 数据分发 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]