Authors: Tuncay Yunus Erkeç; Chingiz Hajiyev
Addresses: Department of Space Sciences, Hezarfen Aeronautics and Space Technologies Institute, National Defence University, Yeşilyurt/Istanbul, 34149, Turkey ' Faculty of Aeronautics and Astronautics, Istanbul Technical University, Maslak/Istanbul 34469, Turkey
Abstract: This paper is devoted that relative navigation of satellites which fly within a formation. The concept and the methods of swarm satellites technology and architecture are explained. The difference between the constellation and the formation architecture of satellites are focused. Analyses of relative motion between satellites are simulated by mathematical model which used Hill-Clohessy-Wiltshire (HCW) equations and Keplerian orbital equations. The results of the analysis show that all axes shift by formation. The control algorithms requirements of follower satellite are decided according to the drift of the all axes. Extended Kalman filters are used for optimisation, estimation and control stability of nonlinear orbital relative motion of satellites. At last, comparison of relative navigation models are focused.
Keywords: satellite formation flight; relative navigation; Kalman filters; Clohesssy-Wiltshire equations; control algorithms.
International Journal of Sustainable Aviation, 2020 Vol.6 No.4, pp.260 - 279
Received: 17 Apr 2020
Accepted: 15 Oct 2020
Published online: 25 Jan 2021 *