Trajectory and Binning Strategy with LQG/LTR Controller for Aircraft Arresting Gear System

This work introduces a novel Multi Input Multi Output (MIMO) digital controller for an aircraft arresting system. Unlike traditional Single Input Single Output (SISO) controls, this MIMO controller addresses the challenges of limited sensor data and the nonlinear dynamics of arrestment. Using an adaptive linear quadratic Gaussian/loop transfer recovery (LQG/LTR) control algorithm, the system estimates aircraft speed and effective skew angle to generate optimal motor reference trajectories. A key innovation is the use of an effective angle that combines aircraft offset, skew, and hook slip into a single metric. This, along with binning strategies, ensures robust control despite uncertainties. The approach enhances stability and performance during the critical phases of aircraft arrestment, meeting tight specifications for cable tension, path divergence, and stopping distance. Results demonstrate the controller's effectiveness, particularly in handling high-mass, high-speed aircraft. This research represents a significant advancement in aircraft arresting control systems, offering a robust solution for modern aircraft carriers.