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This study enhances carrier-based aircraft automatic landing using Elman neural networks (ENN) and nonsingular terminal sliding mode control (NTSMC). The developed system demonstrates improved robustness and fault tolerance for accurate trajectory tracking during disturbances and actuator failures.

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Area of Science:

  • Aerospace Engineering
  • Control Systems
  • Artificial Intelligence

Background:

  • Carrier-based aircraft require precise automatic landing systems.
  • Disturbances like air-wake and actuator failures challenge landing accuracy.
  • Existing control methods may lack robustness or finite-time convergence.

Purpose of the Study:

  • To develop an advanced control system for carrier-based aircraft automatic landing.
  • To enhance trajectory tracking accuracy and system robustness against disturbances and actuator failures.
  • To integrate Elman neural networks (ENN) with nonsingular terminal sliding mode control (NTSMC) for fault-tolerant control.

Main Methods:

  • Derivation of a carrier-based aircraft landing model.
  • Proposal of nonsingular terminal sliding mode control (NTSMC) for robustness and finite-time tracking.
  • Development of an adaptive Elman neural network (ENN) to estimate actuator faults and uncertainties.
  • Integration of ENN with NTSMC to create a fault-tolerant control system.

Main Results:

  • The proposed NTSMC ensures system robustness and accurate trajectory tracking in finite time.
  • The ENN effectively approximates actuator faults and system uncertainties.
  • The combined ENN-NTSMC system demonstrates strong robustness and fault-tolerant capabilities.
  • Improved accuracy in carrier-based aircraft landing trajectory tracking was achieved.

Conclusions:

  • The developed fault-tolerant control system enhances automatic landing performance for carrier-based aircraft.
  • The integration of ENN and NTSMC provides a robust solution for handling disturbances and actuator failures.
  • This approach significantly improves the precision and reliability of carrier landings.