大下视场飞行模拟器视景系统的设计与实现

Design and Implementation of a Large Down FOV Visual System in a Flight Simulator

飞行模拟器视景系统是飞行模拟器的重要组成部分。针对飞行模拟器视景系统实时性要求高、视场角较大、场景覆盖范围较大、逼真度高等特点,基于某直升机飞行模拟器研制对下视场要求较大的特定需求,对大下视场模拟器视景系统的显示系统、多通道网络结构、视景仿真软件以及视景数据库进行了设计和实现,并对其中的关键技术如成像球幕加工技术、多通道同步和融合技术进行了深入研究。实际效果表明,该系统能够实现大下视场视景系统研制任务的需求,达到了国内领先水平。

The visual system is an important component of the flight simulator. Visual system of flight simulator requires high real-time ability, large field of view and realistic imaging effect. Based on requirement of a specific helicopter flight simulator,in which a large down FOV is needed. We designed its display system, multi-channel network, visual simulation software and scene database. Some key technology during the system implementation,including Dome processing, multi-channel communication synchronization and edge blending, was explored. The visual system used in the helicopter flight simulator achieves high-quality of visual effect and reachs the domestic leading level.