【作者】 王华清；

【导师】 余德义；

【作者基本信息】 南京航空航天大学 ， 导航、制导与控制， 2002， 硕士

【摘要】 飞行仿真系统在飞行器设计、性能分析以及飞行员训练中起着十分重要的作用。本文首先阐述了飞行仿真系统的研究现状，确定了分布式虚拟现实技术与传统的仿真技术相结合的飞行仿真系统作为本课题的主要研究内容。 在分析分布式虚拟现实系统基本设计思想的基础上，确立了系统的总体设计方案；深入研究了飞行空间的几种坐标体系及其相互之间的转换，提出了一种将飞行姿态参数转化到虚拟三维空间的变换方法；利用VRML建立了较为完善的三维虚拟飞行场景；分析了VRML动画的产生和与用户交互机制，实现对场景动画的控制；建立了虚拟飞行场景与外部Java程序的数据接口，并进一步实现了对远程数据库中飞行数据的访问。 本文最终建立了以浏览器/Web服务器为基础的三维飞行演示系统，为建立基于Internet的飞行仿真系统提供了一种可行的方法。系统全部程序由VRML和Java编制，具有很好的可移植性。更多还原

【Abstract】 Flight simulation system plays an important role in aircraft design, performance analysis and training of pilot. Based on the study status at present, the dissertation determines the flight simulation system combined with distributed virtual reality (DVR) and traditional simulation methods as the emphasis.According to the basis design principles of DVR, a design scheme of the whole simulation system is proposed. Through studying several coordinate systems of the flight dimension and the conversion among them, the article carries out a conversion of the parameters from the flight dimension to the virtual scene. Utilizing VRML, a perfect 3D virtual environment is established. The track of the moving object in the scene can be controlled through generating VRML animation and interacting with the users. In the end, an interface between the scene and external Java program is performed, furthermore, flight data in network databases can be accessed.Ultimately, a 3D demo system is established based on the browser/Web server mode, which provides a feasible method to found a flight simulation system ground on Internet. All the software of the system is programmed using VRML and Java, which can be transplanted easily.更多还原