基于HLA的光学设施运控仿真联邦成员设计与优化

摘要

Sky survey optical facilities are becoming more and more important in astronomical observation, and control is the core of this kind of facilities. In the process of building the HLA-based astronomical observation simulation system, it is found that control federation's efficiency directly affects the overall efficiency, due to multi-constrain of the observation. For improving the simulation efficiency, the optimistic judging algorithm and openMP-based optimization method are designed. The result show that new control federation greatly improves the efficiency of optical facilities simulation, and the computational complexity is decreased;the overall running time is reduced by 43%.%巡天类光学载荷是空间天文观测的重要载荷，运控系统是其中的重要组成。在利用HLA分布式仿真技术对巡天观测仿真过程中发现，空间中复杂的环境以及较多的成像约束使得运控类联邦成员任务负担较重，计算需求大，该联邦成员的运算效率直接影响整体仿真效率。因此，本文通过设计乐观约束判别算法以及基于openMP多线程技术优化该成员的运控运算方式，提高运行效率。实验表明，改进后的运控联邦成员大幅提高了光学设施仿真任务执行效率，仿真联邦成员的运算时间减少55%，仿真联邦整体运行时间减少了27.4%。