将视景仿真技术应用到任务规划系统中，能使用户在虚拟三维世界中预演任务规划，为作战效能评估提供直观的支持。简要介绍了Creator，Terra Vista，Vega Prime等仿真工具，详细阐述了利用Terra Vista生成大规模三维地形的方法，包括数据的采集和处理，制作地形时各种参数的设置等，研究了Vega Prime中飞行仿真相关模块，并重点阐述了大场景地形调度与管理的问题，最后结合实例实现了一个飞行任务预演仿真系统。仿真结果表明，该系统场景逼真，运行流畅，能较好地模拟作战飞行任务。%The visual simulation technology is applied to the mission planning system, which can let the user preview mis⁃sion planning in the virtual 3D world and provide intuitive support for operation effectiveness evaluation. This paper briefly introduces the simulation software Creator, Terra Vista and Vega Prime, expounds the use of Terra Vista to generate large scale 3D terrain, including data collection and processing, parameter setting of terrain, etc. In the paper, the related module of flight visual simulation in the Vega Prime is studied, and expounds the large scale terrain management. Finally, a flight mission rehearsal simulation system is developed. The experiment results show that the system has vivid scene and smooth running, and can well simulate battle flight mission.
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