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针对跨洋飞行过程中,由于航路点经度变化引起实际飞行航线与理想大圆航线的航迹间产生偏差并导致航程增加这一问题,提出一种基于大圆航线的区域导航航路划设方法。首先给出大圆航线区域导航航路划设的基本模型;其次建立了考虑经度变化后的改进型航路点坐标模型及航程模型;再结合上海至西雅图的实际飞行数据,采用新的航路划设方法对该航路中各航路点重新进行划设。仿真实验结果证明,新方法下总航程比现行航路缩短了21.84%。
Aiming at the problem of cross-ocean flight, the navigation route planning method based on the great circle route is proposed due to the variation of the longitude of the waypoint causing the deviation between the flight path of the actual flight route and the ideal great circle route and the increase of the flight range. Firstly, the basic model of navigation route planning for the Great Circle route is given. Secondly, the improved route point coordinate model and the voyage model considering the longitude change are established. Combining with the actual flight data from Shanghai to Seattle, a new route planning method The route in the waypoints re-draw. Simulation results show that the total flight length of the new method is shortened by 21.84% compared with the current route.