【摘要】 该文分析了现代军事仿真系统对地形环境数据的需求,采用面向对象方法构建了地形环境数据模型,根据地形环境数据模型设计了基于有向无环图结构的综合地形环境数据库,将各种仿真子系统所需的地形环境数据集成在一起,有效地解决了不同仿真应用中地形环境数据的一致性、相关性和多分辨率的问题;通过将综合地形环境数据库映射到SEDR IS表示,促进了地形环境数据的重用和共享;该文还介绍了综合地形环境数据库的数据源,分析了地形环境数据库的生成流程,最后提出了一种OpenFlight格式地形环境数据库的实现方法,节约了数据库的开发成本。更多还原

【Abstract】 In this article,the requirements for terrain of modern military simulation systems are analyzed,and then the terrain environment data model is designed by object-oriented method.A synthetic terrain environment database based on Directed Acyclic Graph(DAG) is designed according to the terrain environment data model. Terrain data for different type of simulations are integrated.The problems of consistency,association and multi-resolution of terrain data in different type of simulations are solved.To improve the reusability of terrain data,the database is mapped to SEDRIS.The data resource is introduced and the production process of terrain environment database is analyzed.Finally,a kind of implementation method on environmental database in the form of OpenFlight is put forward,which can save the cost for developing the database.更多还原