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Optimal estimation for the satellite attitude using star tracker measurementsAn optimal estimation scheme is presented, which determines the satellite attitude using the gyro readings and the star tracker measurements of a commonly used satellite attitude measuring unit. The scheme is mainly based on the exponential Fourier densities that have the desirable closure property under conditioning. By updating a finite and fixed number of parameters, the conditional probability density, which is an exponential Fourier density, is recursively determined. Simulation results indicate that the scheme is more accurate and robust than extended Kalman filtering. It is believed that this approach is applicable to many other attitude measuring units. As no linearization and approximation are necessary in the approach, it is ideal for systems involving high levels of randomness and/or low levels of observability and systems for which accuracy is of overriding importance.
Document ID
19870027032
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lo, J. T.-H.
(Maryland, University Cotonsville, United States)
Date Acquired
August 13, 2013
Publication Date
July 1, 1986
Publication Information
Publication: Automatica
Volume: 22
ISSN: 0005-1098
Subject Category
Spacecraft Design, Testing And Performance
Accession Number
87A14306
Funding Number(s)
CONTRACT_GRANT: NAS5-24217
CONTRACT_GRANT: AF-AFOSR-74-267ID
Distribution Limits
Public
Copyright
Other

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