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Parametric Covariance Model for Horizon-Based Optical NavigationThis Note presents an entirely parametric version of the covariance for horizon-based optical navigation measurements. The covariance can be written as a function of only the spacecraft position, two sensor design parameters, the illumination direction, the size of the observed planet, the size of the lit arc to be used, and the total number of observed horizon points. As a result, one may now more clearly understand the sensitivity of horizon-based optical navigation performance as a function of these key design parameters, which is insight that was obscured in previous (and nonparametric) versions of the covariance. Finally, the new parametric covariance is shown to agree with both the nonparametric analytic covariance and results from a Monte Carlo analysis.
Document ID
20170009129
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Hikes, Jacob (West Virginia Univ. Morgantown, WV, United States)
Liounis, Andrew J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Christian, John A. (Rennesalaer Polytechnical Institute Troy, NY, United States)
Date Acquired
September 28, 2017
Publication Date
October 19, 2016
Publication Information
Publication: Journal of Guidance, Control, and Dynamics
Volume: 40
Issue: 1
ISSN: 0731-5090
Subject Category
Numerical Analysis
Report/Patent Number
GSFC-E-DAA-TN46834
Funding Number(s)
CONTRACT_GRANT: NNX13AJ25A
Distribution Limits
Public
Copyright
Other
Keywords
Optical Navigatio
Covariance