TY - GEN
T1 - Cooperative fault accommodation in formation flying satellites
AU - Azizi, S. M.
AU - Khorasani, K.
PY - 2008
Y1 - 2008
N2 - In this paper a new fault accommodation algorithm based on a two-level architecture is proposed for satellite formation missions. In this two-level framework, the notion of formation-level fault recovery (FLFR) is proposed, and the task of performance monitoring (PM) is defined in the high level (HL). By using the information provided by the PM module, the FLFR is capable of accommodating the "unhealthy satellite" that is partially recovered (due to the inexact and inaccurate estimation of the fault by the fault diagnosis and identification (FDI) modules) in the low-level fault recovery (LLFR), but is detected and labeled as "unhealthy" by the PM module. Consequently, fault is cooperatively recovered by our proposed architecture, and the specifications of formation mission are satisfied. Simulation results confirm the validity and effectiveness of our proposed algorithm.
AB - In this paper a new fault accommodation algorithm based on a two-level architecture is proposed for satellite formation missions. In this two-level framework, the notion of formation-level fault recovery (FLFR) is proposed, and the task of performance monitoring (PM) is defined in the high level (HL). By using the information provided by the PM module, the FLFR is capable of accommodating the "unhealthy satellite" that is partially recovered (due to the inexact and inaccurate estimation of the fault by the fault diagnosis and identification (FDI) modules) in the low-level fault recovery (LLFR), but is detected and labeled as "unhealthy" by the PM module. Consequently, fault is cooperatively recovered by our proposed architecture, and the specifications of formation mission are satisfied. Simulation results confirm the validity and effectiveness of our proposed algorithm.
UR - http://www.scopus.com/inward/record.url?scp=53349118739&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=53349118739&partnerID=8YFLogxK
U2 - 10.1109/CCA.2008.4629604
DO - 10.1109/CCA.2008.4629604
M3 - Conference contribution
AN - SCOPUS:53349118739
SN - 9781424422234
T3 - Proceedings of the IEEE International Conference on Control Applications
SP - 1127
EP - 1132
BT - 17th IEEE International Conference on Control Applications, CCA
T2 - 17th IEEE International Conference on Control Applications, CCA
Y2 - 3 September 2008 through 5 September 2008
ER -