A SINGULARITY AVOIDANCE STEERING LAW BASED ON THE MINIMIZATION TECHNIQUE

Geometric singularity problems are principle difficulties of single-gimbal control moment gyros in spacecraft attitude control. To overcome these singularities, many steering logics have been studied. In this paper, a new null motion steering law is suggested, which is based on the minimization of t...

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Bibliographic Details
Published inJournal of astronomy and space sciences Vol. 23; no. 4; pp. 397 - 404
Main Authors Oh, Hwa-Suk, Lee, Bong-Un, Rhee, Seung-Wu, Lee, Seon-Ho
Format Journal Article
LanguageEnglish
Published 한국우주과학회 10.12.2006
The Korean Space Science Society
Subjects
CMG
null motion
singularity avoidance
steering law
null motion
CMG
singularity avoidance
steering law
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Summary:Geometric singularity problems are principle difficulties of single-gimbal control moment gyros in spacecraft attitude control. To overcome these singularities, many steering logics have been studied. In this paper, a new null motion steering law is suggested, which is based on the minimization of the directional components of output torque with respect to the required torque. The suggested steering law has been simulated and verified to work well around several critical singular points which have been classified as testing points of avoidance algorithm in previous literatures.
ISSN:2093-5587
2093-1409
DOI:10.5140/JASS.2006.23.4.397