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Modeling Pilot Pulse Control
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Author and Affiliation:
Bachelder, Edward(San Jose State Univ., Moffett Field, CA, United States)
Hess, Ronald(California Univ., Davis, CA, United States)
Godfroy-Cooper, Martine(San Jose State Univ., Moffett Field, CA, United States)
Aponso, Bimal(NASA Ames Research Center, Moffett Field, CA, United States)
Abstract: In this study, behavioral models are developed that closely reproduced pulsive control response of two pilots from the experimental pool using markedly different control techniques (styles) while conducting a tracking task. An intriguing find was that the pilots appeared to: 1) produce a continuous, internally-generated stick signal that they integrated in time; 2) integrate the actual stick position; and 3) compare the two integrations to issue and cease pulse commands. This suggests that the pilots utilized kinesthetic feedback in order to perceive and integrate stick position, supporting the hypothesis that pilots can access and employ the proprioceptive inner feedback loop proposed by Hess' pilot Structural Model. The Pulse Models used in conjunction with the pilot Structural Model closely recreated the pilot data both in the frequency and time domains during closed-loop simulation. This indicates that for the range of tasks and control styles encountered, the models captured the fundamental mechanisms governing pulsive and control processes. The pilot Pulse Models give important insight for the amount of remnant (stick output uncorrelated with the forcing function) that arises from nonlinear pilot technique, and for the remaining remnant arising from different sources unrelated to tracking control (i.e. neuromuscular tremor, reallocation of cognitive resources, etc.).
Publication Date: Sep 12, 2017
Document ID:
20170010679
(Acquired Nov 13, 2017)
Subject Category: AIR TRANSPORTATION AND SAFETY
Report/Patent Number: ARC-E-DAA-TN45857
Document Type: Conference Paper
Meeting Information: European Rotorcraft Forum; 43rd; 12-15 Sep. 2017; Milan; Italy
Meeting Sponsor: Politecnico di Milano; Milan, Italy
Contract/Grant/Task Num: NNX16AJ91A; NNX17AE07A
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA, United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: 17p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Public use permitted
NASA Terms: AIRCRAFT SAFETY; CONTROL SYSTEMS DESIGN; FEEDBACK CONTROL; HUMAN BEHAVIOR; MODELS; NEUROMUSCULAR TRANSMISSION; PILOT PERFORMANCE; TRAJECTORY CONTROL; FREQUENCY RESPONSE; NONLINEARITY; PROPRIOCEPTION; PULSE DURATION MODULATION; RESONANT FREQUENCIES; TIME LAG; TRACKING (POSITION)
Other Descriptors: PILOT MODEL; WORKLOAD; PULSE CONTROL
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Last Modified: November 13, 2017
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