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Optimal open multistep discretization formulas for real-time simulationThe performance of digital real-time simulations is considered. A figure of merit is derived that quantifies a simulation's fidelity in terms of the time-domain discrepancy between its output and that of the plant it simulates, assuming that the plant is linearizable and asymptotically stable. This performance index is then used in deriving an easily automated procedure for calculating optimal values for free parameters in plant discretizations based on a generalized form of open linear multistep integration formulas. The theory is demonstrated in simulating the rigid-body dynamics of a fully articulated helicopter rotor blade system.
Document ID
19930050542
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Moerder, Daniel D.
(NASA Langley Research Center Hampton, VA, United States)
Calise, Anthony J.
(NASA Langley Research Center Hampton, VA, United States)
Clemmons, Paul
(Georgia Inst. of Technology Atlanta, United States)
Date Acquired
August 16, 2013
Publication Date
June 1, 1993
Publication Information
Publication: Journal of Guidance, Control, and Dynamics
Volume: 16
Issue: 3
ISSN: 0731-5090
Subject Category
Cybernetics
Accession Number
93A34539
Distribution Limits
Public
Copyright
Other

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