RT Conference Proceedings
T1 Enhanced AOCS verification techniques for Euclid's high-pointing performance
A1 Navarro Tapia, Diego
A1 Marcos Esteban, Andrés
A1 Veenman, Joost
AB This paper presents an enhanced Verification and Validation (V&V) framework accompanied by dedicated tools that allows to analytically evaluate pointing error performance of high-pointing accuracy missions in the presence of disturbances and uncertainties. The proposed analysis approach poses the V&V problem in the robust control framework using linear fractional transformation modelling theory (to include model uncertainties) and frequency dependent weighting functions (to capture the spectral properties of the disturbances and the pointing error performance metrics), and is based on the structured singular value approach as well as the integral quadratic constraint (IQC) framework. The validity of this formal approach is exemplified through the verification of the stringent pointing performance of the Euclid mission during the science observation phase. The results show that the proposed enhanced V&V approach is capable of providing certificates for robust stability and performance for all modelled uncertainties.
PB Elsevier
SN 2405-8963
YR 2022
FD 2022-08-30
LK https://hdl.handle.net/10016/37230
UL https://hdl.handle.net/10016/37230
LA eng
NO This work is part of the project "Enhanced Techniques for AOCS GNC functional verification (AOCS-EV II)" funded by ESA through the contract No. 4000126163/18/NL/GLC.
DS e-Archivo
RD 18 jul. 2024