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当前利用空气动力学或牛顿力学建立的飞行轨迹剖面过于理想化。为得到较为真实的飞行轨迹剖面,提出一种基于历史飞行数据的飞行剖面预测模型。通过比较飞行轨迹剖面间最小矩形距离,度量出航空器飞行轨迹间的相似性。然后根据相似性对航空器飞行轨迹进行聚类,并利用动态时间弯曲距离方法对航空器飞行轨迹剖面进行拟合,得到标称飞行轨迹剖面。通过实例证明了该飞行剖面拟合方法的有效性。
Flight trajectory profiles currently established using either aerodynamics or Newtonian mechanics are too idealistic. In order to obtain a more realistic flight path profile, a flight profile prediction model based on historical flight data is proposed. By comparing the minimum rectangular distance between the flight path cross sections, the similarity between the flight paths of the aircraft is measured. Then, the flight trajectory of the aircraft is clustered according to the similarity and the flight path profile of the aircraft is fitted by using the dynamic time bending distance method to obtain the nominal flight path profile. An example is given to demonstrate the effectiveness of the flight profile fitting method.