On-Board Statistical Detection and Control of Anomalous Pilot-Aircraft Interactions
| Authors: | Dimogianopoulos Dimitrios, University of Patras, Greece
Hios John D., University of Patras, Greece
Fassois Spilios D., University of Patras, Greece |
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| Topic: | 7.3 Aerospace |
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| Session: | Special Problems of Aircraft Control |
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| Keywords: | Recursive estimation, statistical analysis, decision making, aircraft control, critical damping, safety analysis, stability limits |
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Abstract
A statistical method for the on-board detection and control ofoscillatory phenomena in pilot-aircraft systems is presented.Recursive identification is used to obtain a linear model of thesystem at every time instant. The estimated system parameters aremonitored, and the system stability margins are continuouslyassessed. Oscillations due to stability loss are detected early,using a composite statistical hypothesis test. Finally, a simplestability augmentation system is designed to assist thepilot-aircraft system during the critical time intervals. Themethod is successfully tested with data from a detailed nonlinearaircraft model and a flight simulator facility.
