基于VR的航天发射视景仿真系统设计与实现

针对如何构建一个虚拟的航天发射训练平台的现实问题,设计出一种基于虚拟现实技术(Virtual Reality,VR)的航天发射视景仿真系统;介绍了该视景仿真系统的逻辑结构和网络结构,采用三角形面片法构建发射场的地形地貌,并通过纹理映射使地形地貌更加逼真;利用图像和3D图形混合建模的方法构建发射场的设施;运用粒子系统原理,设计出发射火箭的火焰模型。通过Vega仿真软件进行系统集成和渲染,使整个仿真系统得到实现;实践证明,该仿真系统能够实时仿真卫星发射的全过程,为实时指挥、判读提供辅助决策支持平台,具有极大的应用价值。

Design and Realization of Aerospace Launch Scene Simulation System Based on VR Technology

According to the actuality of building a virtual aerospace launch training system,an aerospace launch scene simulation system based on VR(Virtual Reality,VR)technology is designed.The logic structure and network structure of the system are introduced.By the method of triangle surface the terrain and physiognomy of launch center is established,and by veins mapping the models of terrain and physi- ognomy appear vividly.The establishments of launch center are constructed by the method of image and 3D figure mixed.Through applying particle principle,the flame model of the rocket is provided.Finally,the scene simulation system is realized by the integration and romance of Vega software.The practices demonstrate that the system can simulate the process of satellite launch,and provide the support of the real -time command and decision.The system is valuable for the other simulation system building.