为实现弹道视景准实时仿真,建立了导弹弹道仿真模型,使用MultigenCreator创建了导弹三维模型及地形场景模型。基于VegaPrime分析了弹道视景准实时仿真流程及其关键技术,在Windows平台下通过定制高精度多媒体定时器实现了仿真的准实时性,以内存映射文件技术实现了弹道仿真程序与视景仿真程序跨进程的数据交互。在.NET框架下选用C++调用VegaPrimeAPI函数编程完成了弹道视景准实时仿真程序的开发,验证了该方法的可用性。通过弹道视景准实时仿真,设计人员可以直观的观察和分析导弹飞行过程和飞行姿态的变化,为弹道分析与设计提供了参考。

To achieve the trajectory scene quasi-real-time simulation, the trajectory model was created, and the missile 3D model and landform model were created using Multigen Creator software. The process and key technologies of the trajectory scene quasi-real-time simulation were analyzed based on Vega Prime. To achieve the quasi-real-time simulation, the high precision multi-media timer was used. The data cross-process exchange between trajectory simulation and scene simulation wais implemented using memory mapping file technology. The method's availability was verified by the trajectory scene quasi-real-time simulation program developed through using C + + to call Vega Prime API function in. NET frame. The designer can observe and analyze missile flight status through the trajectory scene simulation, and provide the reference for the trajectory analysis and design.