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Identification of Time-Varying Pilot Control Behavior in Multi-Axis Control TasksRecent developments in fly-by-wire control architectures for rotorcraft have introduced new interest in the identification of time-varying pilot control behavior in multi-axis control tasks. In this paper a maximum likelihood estimation method is used to estimate the parameters of a pilot model with time-dependent sigmoid functions to characterize time-varying human control behavior. An experiment was performed by 9 general aviation pilots who had to perform a simultaneous roll and pitch control task with time-varying aircraft dynamics. In 8 different conditions, the axis containing the time-varying dynamics and the growth factor of the dynamics were varied, allowing for an analysis of the performance of the estimation method when estimating time-dependent parameter functions. In addition, a detailed analysis of pilots adaptation to the time-varying aircraft dynamics in both the roll and pitch axes could be performed. Pilot control behavior in both axes was significantly affected by the time-varying aircraft dynamics in roll and pitch, and by the growth factor. The main effect was found in the axis that contained the time-varying dynamics. However, pilot control behavior also changed over time in the axis not containing the time-varying aircraft dynamics. This indicates that some cross coupling exists in the perception and control processes between the roll and pitch axes.
Document ID
20130013547
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Zaal, Peter M. T. (San Jose State Univ. Research Foundation San Jose, CA, United States)
Sweet, Barbara T. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
August 27, 2013
Publication Date
August 14, 2012
Subject Category
Cybernetics, Artificial Intelligence And Robotics
Report/Patent Number
ARC-E-DAA-TN5708
Meeting Information
Meeting: AIAA Modeling and Simulation Technologies Conference
Location: Minneapolis, MN
Country: United States
Start Date: August 13, 2012
End Date: August 16, 2012
Sponsors: American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NNX12AB08A
WBS: WBS 877868.02.07.01.02.01
Distribution Limits
Public
Copyright
Public Use Permitted.

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