Context-Aware Generative Models for Prediction of Aircraft Ground Tracks

• URL: http://arxiv.org/abs/2309.14957v1
• Date: Tue, 26 Sep 2023 14:20:09 GMT
• Title: Context-Aware Generative Models for Prediction of Aircraft Ground Tracks
• Authors: Nick Pepper and George De Ath and Marc Thomas and Richard Everson and Tim Dodwell
• Abstract summary: Trajectory prediction plays an important role in supporting the decision-making of Air Traffic Controllers. Traditional TP methods are deterministic and physics-based, with parameters calibrated using aircraft surveillance data harvested across the world. This work proposes a generative method for lateral TP, using probabilistic machine learning to model the effect of the unknown effect of pilot behaviour and ATCO intentions.
• Score: 0.004807514276707785
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Trajectory prediction (TP) plays an important role in supporting the decision-making of Air Traffic Controllers (ATCOs). Traditional TP methods are deterministic and physics-based, with parameters that are calibrated using aircraft surveillance data harvested across the world. These models are, therefore, agnostic to the intentions of the pilots and ATCOs, which can have a significant effect on the observed trajectory, particularly in the lateral plane. This work proposes a generative method for lateral TP, using probabilistic machine learning to model the effect of the epistemic uncertainty arising from the unknown effect of pilot behaviour and ATCO intentions. The models are trained to be specific to a particular sector, allowing local procedures such as coordinated entry and exit points to be modelled. A dataset comprising a week's worth of aircraft surveillance data, passing through a busy sector of the United Kingdom's upper airspace, was used to train and test the models. Specifically, a piecewise linear model was used as a functional, low-dimensional representation of the ground tracks, with its control points determined by a generative model conditioned on partial context. It was found that, of the investigated models, a Bayesian Neural Network using the Laplace approximation was able to generate the most plausible trajectories in order to emulate the flow of traffic through the sector.

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