将HLA应用于人在回路的仿真要求具有实时性,当前RTI软件一般不能满足要求。需要通过某种方式改善RTI的时间损耗,并且保证时间管理的正确性、同步性。这里禁止了RTI内部时间管理服务,同时应用时间管理盟员协调联邦的步进,并且采用恰当的DR算法解决个别盟员计算缓慢、传递数据延迟、数据传递丢失的问题。给出了基于HLA空战仿真的体系结构,分析了应用的HLA接口规范和辅助时间管理方法。提出的方法能在网络较好的局域网条件下,有效地解决人在回路实时性要求与RTI本身不实时的矛盾,经济代价低,提供了解决工程实际问题的一种通用且实用的手段。

Real time performance is critical for applying HLA in man-in-the-loop simulation,for which the current RTI always doesnt work. The RTIs time consuming must be controlled in certain manner,and the correctness and synchronization of time management should be guaranteed. Here we prohibited inner RTI time management. For compensation,time control federation was used to control time advance. Suitable DR arithmetic was used to solve the problems such as data missing,delay during web transmission and slow in calculation. Framework of air combat simulation based on HLA was built up,HLA rules and APIs used were analyzed. The method mentioned here can effectively enhance simulation's real time performance at a low price. It also supplies a useful and general method for similar project.