An attitude determination algorithm, proposed 25 years ago as a back-up algorithm in case the QUEST algorithm failed to function properly on its maiden mission, is finally compared with the QUEST algorithm. A comparison of the attitude determination accuracies of both algorithms is carried out using the QUEST measurement model. The back-up algorithm, which we have chosen to call “The Anti-QUEST,” while it lacks the special features that have made QUEST so popular today and is rather clumsy, slow and deficient in many ways, works well under the almost ideal conditions of the Magsat mission, but not generally. Further comparisons of QUEST and The Anti-QUEST provide useful insights into the different behaviors of optimal and deterministic attitude estimators. This work also presents useful practical techniques for the covariance analysis of nonoptimal algorithms.
QUEST and The Anti-QUEST: Good and Evil Attitude Estimation
J of Astronaut Sci
The Journal of the Astronautical Sciences ; 53 , 3 ; 337-351
2005-09-01
15 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
QUEST and The Anti-QUEST: Good and Evil Attitude Estimation
Online Contents | 2005
|QUEST and The Anti-QUEST: Good and Evil Attitude Estimation
Online Contents | 2005
|IuD Bahn | 2003
|Extended QUEST Attitude Determination Filtering
British Library Conference Proceedings | 1999
|REQEST - A Recursive QUEST Algorithm for Sequential Attitude Determination
British Library Conference Proceedings | 1996
|