基于安全性的散点状雷暴天气下改航模型研究

Deviation Model Based on the Security Under Sporadic Thunderstorm Weather

本文根据雷达图解析出雷暴边界,并根据散点状区域面积的大小,对图形进行筛选、合并,确定危险区域的面积,并利用回波强度定义雷暴的危险系数,在外围设立适当的安全距离,建立航空器与危险天气的接近风险模型。以此为基础,通过搜索原飞行航向附近角度的接近风险,以及航空器与危险天气的距离变化情况,确定改航航向和飞行时间,建立基于安全性的改航模型。仿真验证表明该模型可以为航空器在多个危险天气影响下,选择合适的改航路径。

In this paper, the thunderstorm boundary is analyzed according to the Radar map. According to the size of the area of scattered points, the graphics are screened and merged, and determine the scope of the flight restriction area. Define the risk factor of thunderstorm using echo intensity, and set up appropriate safety distance in the periphery, and establish the risk model, On this basis, through the search of the original flight course near the angle of the risk, determine the heading of the aircraft, and establish the minimum turning angle of the navigation model to ensure the safety level. The simulation results show that the model can select the appropriate route of the aircraft under the influence of multiple dangerous weather.