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Gabriel François Laupré, Pasquale Longobardi, Jan Skaloud
priors'' of aerodynamic coefficients via state-estimation (Extended Kalman Filter). Two methods to derive such
priors'' (i.e., initial parameter values) are investigated. The first adapts coefficients described in the literature for an aircraft of similar geometry. The second performs regression analysis of flight data to estimate coarse values of the coefficients. Both sets of coefficients are further re-calibrated in-flight via state estimation. The accuracy of the coefficient calibration is evaluated by simulating a GNSS outage of several minutes, during which the trajectory flown under autonomous navigation is compared to that of the reference., ,