TY - GEN
T1 - Visual approach for MEMS gyroscope drift compensation
AU - Rawashedeh, Samir A.
AU - Lumpp, James E.
PY - 2014
Y1 - 2014
N2 - This paper presents the design of an attitude determination system from a small satellite perspective that automatically corrects for attitude drift using relative attitude measurements generated using a small imager. The visual attitude propagation approach, referred to as the 'stellar gyroscope', is a star imaging system that generates relative attitude measurements between star field images with common stars, without using a star database. The Random Sample Consensus (RANSAC) approach used in star pair detection offers significant noise immunity, which allows the approach to be implemented using miniature cameras with lower signal to noise ratios, providing a new alternative for miniature spacecraft (such as CubeSats). The various mechanism of attitude estimate drift when using MEMS rate gyroscopes are discussed in detail. The stellar gyroscope concept is described, and a Kalman filter is described that can utilize the relative attitude measurements provided by the stellar gyroscope in order to maintain a high accuracy attitude fix throughout the orbit.
AB - This paper presents the design of an attitude determination system from a small satellite perspective that automatically corrects for attitude drift using relative attitude measurements generated using a small imager. The visual attitude propagation approach, referred to as the 'stellar gyroscope', is a star imaging system that generates relative attitude measurements between star field images with common stars, without using a star database. The Random Sample Consensus (RANSAC) approach used in star pair detection offers significant noise immunity, which allows the approach to be implemented using miniature cameras with lower signal to noise ratios, providing a new alternative for miniature spacecraft (such as CubeSats). The various mechanism of attitude estimate drift when using MEMS rate gyroscopes are discussed in detail. The stellar gyroscope concept is described, and a Kalman filter is described that can utilize the relative attitude measurements provided by the stellar gyroscope in order to maintain a high accuracy attitude fix throughout the orbit.
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U2 - 10.1109/AERO.2014.6836352
DO - 10.1109/AERO.2014.6836352
M3 - Conference contribution
AN - SCOPUS:84903957020
SN - 9781479916221
T3 - IEEE Aerospace Conference Proceedings
BT - 2014 IEEE Aerospace Conference
T2 - 2014 IEEE Aerospace Conference
Y2 - 1 March 2014 through 8 March 2014
ER -