低能见度条件下助航灯光视景仿真

Navigation Lights Visual Simulation in Low Visibility Conditions

针对目前飞行模拟机对不同气象条件下机场助航灯光模拟较为欠缺的现状,使用逐点计算法建立了基于飞行员视觉的排灯光照数学模型,实现了助航灯及其光学特性的仿真。在分析粒子系统实现原理的基础上,基于OpenGL提出了一种在大型场景漫游系统中实时动态模拟降雪的方法。给出了跑道II类运行模式下基于飞行员视觉的不同程度的助航灯光降雪场景。仿真试验显示,使用逐点计算法建立的排灯光照仿真模型,能够真实地模拟机场各类助航灯具的光学特性,较好地实现了助航灯光在不同程度下着陆、离港全过程的真实降雪视景仿真。整个系统运行稳定,实时性良好,场景形象逼真。

At present the simulation of airport lighting in the flight simulator is lack in different meteorological conditions.Point by point calculation method is established based on the pilot visual row light mathematical model and realize the simulation of the navigation lamp and optical properties.A kind of real-time dynamic method of snow simulation based on OpenGL in the large scene roaming system is put forward,and given the simulation scenarios of pilot vision in different degree conditions.In the runway II category operation mode.Simulation experiment shows found a simulation model of the aids to navigation in the light system according to the dimensional theory.Optical properties of all kinds of aids to navigation lamps of the airport can be real simulated.The navigation lights in different conditions landing or departure of the whole process of the real-time visual simulation can be better realized.The whole system works well,vivid and real-time.