AbstractIn this paper, the Mars final approach navigation is fulfilled using radiometric measurements from ground-based beacons and orbiters. In the navigation system, the beacons are fixed on the surface of the Mars and orbiters can be phased to cooperate with the probe. The trajectory of the Mars probe and the true anomalies of the orbiters are the design variables that should be optimized. The propagation process of the Fisher information in dynamical system is clarified, and the Fisher information matrix (FIM) at the final time contains the whole information accumulated from the measurements. The system's observability is optimized through maximizing the eigenvalues of the information matrix. Furthermore, the optimal geometrical configurations with three and four measurements are analytically solved for the first time. In simulations, an unscented Kalman filter (UKF) is applied to examine the navigation performance in different scenarios in which three and four measurements are applied. The results show that the position and velocity estimation accuracy can reach 10 m and 0.01 m/s respectively. The Fisher information increases the most when the geometrical configuration is in the vicinity of the optimal configuration.

    HighlightsThe navigation scheme for the Mars final approach is proposed.The Trajectory of the probe and orbits of two obiters are optimized together.The Fisher information theory is introduced to optimize the navigation scheme.The optimal geometrical configurations are analytically derived.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Mars final approach navigation using ground beacons and orbiters: An information propagation perspective


    Beteiligte:
    Ou, Yangwei (Autor:in) / Zhang, Hongbo (Autor:in)

    Erschienen in:

    Acta Astronautica ; 138 ; 490-500


    Erscheinungsdatum :

    2017-06-12


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Mars-Approach Navigation Using In Situ Orbiters

    Duncan, Courtney / Ely, Todd / Lightsey, E. Glenn | NTRS | 2007



    The first Mars orbiters

    Forney, R. G. / Haynes, N. R. / Laeser, R. P. et al. | NTRS | 1970


    Inflatable Aerocapture Decelerators for Mars Orbiters

    Brown, Glen J. / Lingard, J. Stephen / Darley, Matthew G. et al. | NTRS | 2007


    Inflatable Aerocapture Decelerators for Mars Orbiters

    Brown, Glen / Lingard, J. / Darley, Matthew et al. | AIAA | 2007