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Nondiagonal MIMO QFT controller design for Darwin-type spacecraft with large flimsy appendages / Mario Garcia-Sanz in Transactions of the ASME . Journal of dynamic systems, measurement, and control, Vol. 130 N°1 (Janvier/Fevrier 2008) 

Public ISBD [article]  in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°1 (Janvier/Fevrier 2008) . - 15 p. Titre : Nondiagonal MIMO QFT controller design for Darwin-type spacecraft with large flimsy appendages Type de document : texte imprimé Auteurs : Mario Garcia-Sanz, Auteur ; Samir Bennani, Auteur ; Irene Eguinoa, Auteur Année de publication : 2008 Article en page(s) : 15 p. Note générale : dynamic systems Langues : Anglais (eng) Mots-clés : robust  control  strategies;  Darwin-type  spacecraft;  flexible  appendages Résumé : This paper deals with the design of robust control strategies to govern the position and attitude of a Darwin-type spacecraft with large flexible appendages. The satellite is one of the flyers of a multiple spacecraft constellation for a future ESA mission. It presents a 6×6 high order multiple-input–multiple-output (MIMO) model with large uncertainty and loop interactions introduced by the flexible modes of the low-stiffness appendages. The scientific objectives of the satellite require very demanding control specifications for position and attitude accuracy, high disturbance rejection, loop-coupling attenuation, and low controller order. The paper demonstrates the feasibility of a sequential nondiagonal MIMO quantitative feedback theory (QFT) strategy controlling the Darwin spacecraft and compares the results with H-infinity and sequential diagonal MIMO QFT designs. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...] [article] Nondiagonal MIMO QFT controller design for Darwin-type spacecraft with large flimsy appendages [texte imprimé] / Mario Garcia-Sanz, Auteur ; Samir Bennani, Auteur ; Irene Eguinoa, Auteur . - 2008 . - 15 p. dynamic systems Langues : Anglais (eng) in Transactions of the ASME . Journal of dynamic systems, measurement, and control > Vol. 130 N°1 (Janvier/Fevrier 2008) . - 15 p. Mots-clés : robust  control  strategies;  Darwin-type  spacecraft;  flexible  appendages Résumé : This paper deals with the design of robust control strategies to govern the position and attitude of a Darwin-type spacecraft with large flexible appendages. The satellite is one of the flyers of a multiple spacecraft constellation for a future ESA mission. It presents a 6×6 high order multiple-input–multiple-output (MIMO) model with large uncertainty and loop interactions introduced by the flexible modes of the low-stiffness appendages. The scientific objectives of the satellite require very demanding control specifications for position and attitude accuracy, high disturbance rejection, loop-coupling attenuation, and low controller order. The paper demonstrates the feasibility of a sequential nondiagonal MIMO quantitative feedback theory (QFT) strategy controlling the Darwin spacecraft and compares the results with H-infinity and sequential diagonal MIMO QFT designs. En ligne : http://dynamicsystems.asmedigitalcollection.asme.org/issue.aspx?journalid=117&is [...]