Parameter estimation in mathematical models of the esro 1A attitude dynamics using numerical differentiation of measured data

Parameter estimation in mathematical models of the esro 1A attitude dynamics using numerical differentiation of measured data

Boerstoel, J.W.
Huizing, G.H.
van Woerkom, P.T.L.M.

National Aerospace Laboratory NLR

1974-12-04

Purpose of the present study is the investigation of the validity of a new algorithm for the estimation of parameters related to spacecraft torques. The algorithm is based on data reduction by numerical differentiation using smoothing splines. Measured data of the ESRO lA "Aurorae" spacecraft are used. It is concluded that the new data reduction algorithm is stable and efficient. So-called end effects of the smoothing splines cause minor problems, however. It is further concluded that the mathematical model for the spacecraft torques may be improved; better models are proposed. The algorithm appears to be a powerful tool for accurate estimation of in-orbit spacecraft torque parameters.

http://resolver.tudelft.nl/uuid:3f30e64b-d8d9-40cf-ad73-9e46b1a204b9

Nationaal Lucht- en Ruimtevaartlaboratorium

Campus only

NLR-TR 75029 C

Aerospace Engineering Reports

report

(c)1974 National Aerospace Laboratory NLR