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M-MRAC for SPHERESThis paper presents application of the modified reference model MRAC (M-MRAC) method to control the relative position and orientation of a cluster of satellites known collectively as the Synchronized Position Hold, Engage, Reorient Experimental Satellites (SPHERES). The approach uses fast estimation algorithms to achieve guaranteed tracking of reference commands for both input and output signals in the presence of uncertainties in mass and inertia data and external disturbances. The tracking errors can be systematically decreased by the proper selection of the design parameters in the identification model. The generated control signals have acceptable magnitudes and exhibit no oscillations. The benefits of the method are demonstrated in numerical simulations.
Document ID
20190025432
Acquisition Source
Ames Research Center
Document Type
Conference Paper
Authors
Stepanyan, Vahram (California Univ. Santa Cruz, CA, United States)
Barlow, Jonathan (Stinger Ghaffarian Technologies Inc. (SGT Inc.) Moffett Field, CA, United States)
Benavides, Jose (Florida Inst. for Human and Machine Cognition, Inc. Pensacola, FL, United States)
Krishnakumar, Kalmanje (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
May 31, 2019
Publication Date
January 5, 2015
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Spacecraft Design, Testing And Performance
Report/Patent Number
ARC-E-DAA-TN15573
Meeting Information
Meeting: 2015 AIAA SciTech Forum
Location: Kissimmee, FL
Country: United States
Start Date: January 5, 2015
End Date: January 9, 2015
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
CONTRACT_GRANT: NNA14AA60C
CONTRACT_GRANT: NAS2-03144
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
NASA Technical Management
Keywords
Relative motion
Guaranteed transient performance
SPERES adaptive control

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