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Acta Aeronautica et Astronautica Sinica ›› 2026, Vol. 47 ›› Issue (1): 332106.doi: 10.7527/S1000-6893.2025.32106

• Electronics and Electrical Engineering and Control • Previous Articles     Next Articles

A trajectory imputation method integrating representation transformation and pattern regression

Ye TAO(), Jinhui TANG, Zhen YAN, Chen ZHOU, Chong WANG   

  1. State Key Laboratory of Air Traffic Management System,Beijing 100083,China
  • Received:2025-04-11 Revised:2025-05-15 Accepted:2025-07-24 Online:2025-09-11 Published:2025-08-28
  • Contact: Ye TAO E-mail:taoyedlmu@163.com
  • Supported by:
    Youth Innovation Fun(P05-24-02-032)

Abstract:

The civil aviation trajectory data collected through air traffic control surveillance systems often suffer from integrity loss, which compromises spatial-temporal continuity and limits the application potential of trajectory-based intelligent operational frameworks. To address this challenge, a novel trajectory imputation method is proposed, integrating representation transformation with pattern regression mechanisms. The technical implementation comprises three core components: first, a coding model is developed to transform four-dimensional spatial-temporal trajectories into RGB-channel color image representations. This approach reformulates the missing trajectory completion problem as an image inpainting task, thereby achieving an innovative domain transformation. Second, a multi-scale perception regression model architecture is designed, incorporating multi-kernel fusion modules and improved hybrid attention mechanisms across resolution-specific information pathways. Within information transmission path of each resolution, multi-kernel fusion modules and hybrid attention mechanisms are integrated to strengthen the model’s ability to represent complex spatial-temporal patterns. Finally, an adaptive weight allocation training strategy is employed to systematically optimize the fitting performance of the model. During experimental validation, a multi-dimensional evaluation framework is implemented using a real-world trajectory dataset. Results demonstrate that, compared to traditional statistical interpolation and existing deep learning methods, the proposed method achieves superior imputation accuracy for trajectories with missing rates below 90%. Ablation study further confirms the significant contributions of each module and training strategy to overall performance. These findings underscore the robust generalization capabilities and engineering applicability of method in addressing trajectory integrity challenges.

Key words: air traffic control, deep learning, flight trajectory imputation, representation transformation, pattern regression, symmetric multi-scale regression model

CLC Number: