In this paper we describe a new method useful for autonomous onboard estimation for satellites in LEO. The method employs symplectic integration which provides very high modelling precision in sufficiently short times to be computed by onboard computers. We demonstrate a modelling accuracy of less than 1 centimeter in position after 7 days propagation of LEO orbits by filtering 700 simulated noise-free position-velocity measurements in 1 minute CPU time on a Pentium 200 MHz processor.

    We demonstrate the accuracy of the filter when noise is added to simulated data and argue that sparse measurements are more suited to this filter. For the purposes of evaluating this method we have ignored the effects of atmospheric drag and radiation pressure, although we describe briefly how the method can be modified to include these effects for real applications.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A Symplectic Orbital Estimator for Direct Tracking on Satellites


    Weitere Titelangaben:

    J of Astronaut Sci


    Beteiligte:
    Mikkola, S. (Autor:in) / Palmer, P. L. (Autor:in) / Hashida, Y. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.03.2000


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    A Symplectic Orbital Estimator for Direct Tracking on Satellites

    Mikkola, S. / Palmer, P. L. / Hashida, Y. | Online Contents | 2000




    Nonlinear Symplectic Attitude Estimation for Small Satellites

    Valpiani, James / Palmer, Phil | AIAA | 2006


    Orbital positioning of domestic satellites

    Gubin, S. / Kane, D. | NTRS | 1973