【摘要】 详细分析了局域网分布实时仿真中的实时性问题,阐述了仿真实时性的特点,并对实时性进行定量分析。同时给出系统满足仿真实时性的充要条件,定义度量实时性能力的仿真主机实时余度;还对比分析了局域网常用三种传输方式下的局域网分布实时仿真特性,指出Multicast是局域网分布实时仿真系统的最佳的网络数据传输方式;最后成功地分析飞机单武器平台仿真实例的实时性,将有关实时性理论用于指导局域网分布实时仿真系统的设计。更多还原

【Abstract】 The real-time characteristic of the LAN-Distributed Real-Time Simulation System (LDRSS) was analyzed in detail. The quantitative analysis of real-time was given and the necessary and sufficient conditions satisfying the real-time requirements were presented. The real-time performance of LDRSS was described by the defined Real-time Simulation Redundancy. The real-time characteristics of general network transfer modes, Broadcast, Unicast and Multicast were contrastively analyzed and Multicast mode was regarded as the best selection for the LDRSS. Finally, the above-mentioned theory of LDRSS was successfully applied to analyze the real-time performance of an aircraft simulation system.更多还原