KALMAN FILTER BASED MULTIMODE ATTITUDE DETERMINATION ALGORITHMS FOR A LEO SATELLITE

Kutlu A., TEKİNALP O.

AAS/AIAA 19th Space Flight Mechanics Meeting, Savannakhet, Laos, 8 - 12 Şubat 2009, cilt.134, ss.1551-1566 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 134
  • Basıldığı Şehir: Savannakhet
  • Basıldığı Ülke: Laos
  • Sayfa Sayıları: ss.1551-1566
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

This study presents the design of a Kalman filter based attitude determination algorithms for a hypothetical LEO satellite with a multimode structure that employs different sensor combinations and as well as online switching between these combinations depending on the sensor availability. The performance and effectiveness of these different attitude determination modes and the multimode structure are investigated through simulations. Especially the accuracy of the state estimation and the behavior of the system covariance matrix on the mode transition phases are presented. In conclusion, performance comparison for a successive attitude maneuvers and for a fixed attitude hold maneuver between the asynchronous multimode structure and accurate mode having synchronous sensor measurements are discussed.