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On the equivalence between Flight Director algorithms and Flight Path predictors in aircraft guidance

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons83878

De Stigter,  S
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Citation

De Stigter, S., Mulder, M., & van Paassen, M. (2005). On the equivalence between Flight Director algorithms and Flight Path predictors in aircraft guidance. In AIAA Guidance, Navigation, and Control Conference and Exhibit (pp. 1-20). Reston, VA, USA: American Institute of Aeronautics and Astronautics.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-D4BF-D
Abstract
A common approach to reduce pilot workload and improve path-following performance is to provide the pilot with display augmentation. This can be in the form of flight director bars or by means a flight path predictor symbol. Although both means of display augmentation have in the past been treated as two different types of display augmentation, this paper will show that from control theoretic point of view they are alike. Moreover the paper suggests a new criterion for selection of the optimal pilot gain in conjunction to the prediction time of the flight path predictor. The previous criterion, defined in the time domain, was based on an offset correction task. This showed to be highly correlated to the initial offset and can therefore not be considered representative for track following. The advantage of the new criterium, defined in the frequency domain, is that it is based on the task of path following.