基于曲线相似度的飞行着陆操作评价方法

A Method of Landing Operation Evaluation Based on Curve Similarity

为识别民机着陆过程中的飞行操作风险,提出应用曲线相似度方法,结合真实飞行数据对飞行着陆操作水平进行量化评价。选取无线电高度、驾驶杆位移以及油门杆角度作为评价飞行着陆操作的关键指标,应用飞行快速存取记录器(QAR)数据拟合各指标的目标曲线,并从曲线趋势变化、平移、伸缩3个属性度量实际曲线与目标曲线的一致性程度,构建了基于曲线相似度的飞行着陆操作评价模型。通过从某航空公司获得真实QAR数据进行实例验证,验证结果表明,一致性度量值越小,则实际曲线与目标曲线的相似度越高;飞行员的着陆操作水平越高,带来的着陆操作风险就越低。曲线相似度方法比传统的主观飞行操作评价更容易实施,结果客观量化,同时也可以推广到其它飞行阶段的操作水平评价。

In order to identify flight operation risks during landing,a curve similarity method is proposed to quantitatively evaluate flight operations based on actual flight data.This method selects radio height,steering column shift,and throttle stick angle as the key factors of landing operations.The data from Quick Access Recorder(QAR)data are utilized to find out the target curve of each factor.The degree of consistency between the actual curve and the target curve is measured from three attributes of curve tendency,translation,and expansion.Then a model of flight operation evaluation during landing based on curve similarity is developed.The model is validated through actual QAR data from airlines.The evaluation results show that the less consistency measured from the results,the more similarity between the two curves.When the operation level of the pilot is higher,the operational risk of landing is lower.The curve similarity method is easier to implement than traditional subjective flight operation evaluation.Its results are objective and quantitative.It can be applied to evaluate flight operations in other phases as well.