一种基于航空器气象资料下传数据的飞行剖面生成方法

由于飞行剖面识别是航空器四维(Four-dimensional,4D)航迹预测研究的热点问题,提出一种基于航空器气象资料下传(Aircraft meteorological data relay,AMDAR)数据的全飞行过程剖面生成方法,包括由高度-航程构成的标称高度剖面和空速-航程构成的标称速度剖面。首次将动态空间规整算法(Dynamic space warping,DSW)应用到飞行高度剖面的相似距离计算中,计算出标称飞行高度剖面;为解决在地速未知情况下标称速度剖面的计算问题,结合大椭圆距离算法与航空器基本性能数据库(Base of aircraft data,BADA),给出一种标称飞行速度剖面的计算方法,该方法保留了AMDAR实测历史数据中所隐含的飞行意图与气象因素。实际算例表明,本文提出的方法能够有效地得到真实反映航空器飞行状态的全飞行剖面。

Method for Generating Flight Profile Based on AMDAR Data

Flight profile recognition is a hot issue in aircraft four-dimensional (4D) trajectory prediction. A novel method based on aircraft meteorological data relay (AMDAR) data is proposed to generate flight profile. The method includes a nominal altitude profile constituted with altitude-range and a nominal speed profile constituted with speed-time. Firstly, the dynamic space warping (DSW) algorithm is applied in calculating the similarity distance of flight altitude profile while generating the nominal flight altitude profile. Then the large oval distance algorithm combining with the base of aircraft data (BADA) model is proposed to achieve a nominal flight speed profile when ground speed is unknown. Flight intent and meteorological factors retained in AMDAR data are observed in the calculated flight profiles. A case study demonstrates that the proposed approach can effectively provide a complete flight profile reflecting the real aircraft flight status.