基于飞行员视觉的助航灯及其光学特性仿真

Simulation of Aerodrom Ground Lights and Optical Properties Based on Point Parameters

针对飞行模拟机对机场助航灯光尤其是光学特性仿真欠缺的现状,依据国际民航规范深入分析了灯光的光学特性;应用移动最小二乘插值算法实现了助航灯等光强图的细化分割;使用量纲分析法建立了飞行员视觉的光照数学模型;借助OpenGL图形库对助航灯及光学特性进行了仿真。给出了跑道II类运行模式下飞机在第4边、第5边及最后进近阶段基于飞行员视觉的灯光仿真场景。仿真结果显示,通过最小二乘插值法获得灯光细化分割曲线,使用量纲分析法建立的仿真模型,能够真实地仿真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运行模式下着陆、离港全过程的真实视景仿真,场景形象逼真。

Due to the lack of simulation of flight simulator airport lighting especially the optical properties, in this paper we analysed in-depth the optical characteristics of lighting. According to the international civil aviation norms, the moving least squares interpolation toget algorithm was applied for airfield lighting intensity refinement split. The dimensional analysis was used to establish the mathematical model based on pilot visual light. The airfield lights and their optical properties were simulated with the OpenGL graphics library. The paper carried out the lighting simulation scenarios in runway Class II operating mode when Aircraft was in 4 side, 5 side and the final approach. The visual presentation of the aircraft approach process was achieved based on pilot visual. The simulation experiments show that using Least squares interpolation algorithm can get refined segmentation curve, and using dimensional analysis can es- tablish the mathematical model. The optical properties of the airport can be realistically simulated to better achieve the real visual simulation of airfield lighting, landing, departure in the whole process of landing, departure under different operating modes.