C^4ISR系统基于邮箱机制的离散事件仿真引擎技术

Discrete-Event Simulation-Engine Technology Based on Mailbox-mechanism in C^4ISR System

针对C4ISR系统仿真作战平台工具中离散事件仿真引擎的设计问题,结合C4ISR系统功能组成和作战推演流程划分了三种基本离散事件类型;利用邮箱收发邮件的缓存机制可进行集中管理和存取便捷的特点,辅助仿真引擎支撑离散事件的运行流转过程;在此基础上比较分析了固定步长驱动法和事件驱动法两种离散事件引擎策略。试验结果表明:在时间粒度不同的离散事件仿真系统中,离散事件驱动的时钟算法比固定步长法更适用,可以大大节省仿真过程耗费的机器时间。

For the design of discrete event simulation engine about combat simulation platform tools in C4 ISR System, discrete events were divided into several types according to the C4 ISR System's functional components and operational deduction process. The advantage of centralized management and convenient access was made use of by the mechanism of sending and receiving emails in mailbox to support the circulation of discrete events. Besides, the fixed-step driven and event-driven discrete event engine strategies were compared and analyzed. The result shows that, discrete event-driven clock algorithm, which can greatly reduce the consumed machine-time in simulation, is more applicable at discrete event simulation system with different time granularity.