Systems Engineering and Electronics ›› 2024, Vol. 46 ›› Issue (8): 2696-2708.doi: 10.12305/j.issn.1001-506X.2024.08.17

• Systems Engineering • Previous Articles    

Short-time trajectory deviation detection method for UAV based on trajectory prediction

Gang ZHONG, Jiangying ZHOU, Sen DU, Honghai ZHANG, Hao LIU   

  1. College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
  • Received:2023-06-07 Online:2024-07-25 Published:2024-08-07
  • Contact: Gang ZHONG

Abstract:

Safeguarding unmanned aerial vehicle (UAV) flight safety has become a key issue in promoting the innovative application and scale development of unmanned aviation. To solve the safety hazards caused by trajectory deviation during the operation of UAV in low-altitude structured airway networks, a abnormal trajectory detection method (ATDM) is proposed. Firstly, a trajectory data preprocessing and reconstruction model is established to construct the trajectory data containing multidimensional attributes such as position, velocity, heading and so on. Secondly, the UAV short-term trajectory prediction model is constructed by using the trajectory data with multi-dimensional attributes as input, and the bidirectional long and short-term memory network algorithm is used. Finally, based on the multidimensional local anomaly factor between historical and prediction trajectory points, the trajectory deviation detection is transformed into a density classification problem of the trajectory points, and the UAV trajectory deviation detection method is established to realize the dynamic monitoring of the trajectory deviation status in the short-time range. Results show that ATDM has better accuracy advantage and real-time performance in short prediction time range.

Key words: trajectory anomaly detection, trajectory prediction, trajectory deviation, unmanned aerial vehicle (UAV)

CLC Number: 

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