In GPS one of the primary errors contributing to positioning inaccuracy is the performance of the on-board atomic clock. To determine and predict the performance of this atomic clock has been a problem due to the ambiguity of the orbital position error and clock uncertainty in the Radio Frequency (RF) tracking of the navigation signals. The Laser Retroreflector Experiment (LRE) on-board NAVSTAR 35 and 36 provides a means of separating these ambiguous errors by enabling highly precise and accurate satellite positions to be determined independently of the RF signals. The results of examining onboard clock behavior after removing the orbital position signatures will be discussed. GPS RF tracking data from various DOD and other sites are used to reconstruct the onboard clock data and examine the clock behavior. From these data, the effects of clock performance on GPS positioning performance can examined.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Laser Retroreflector Experiment on NAVSSTAR35 and 36


    Contributors:
    E. C. Pavlis (author) / R. L. Beard (author)

    Publication date :

    1995


    Size :

    15 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




    Laser retroreflector experiment on NAVSTAR 35 and 36

    Pavlis, E. C. / Beard, Ronald L. | NTRS | 1995


    Laser Retroreflector Experiment on NAVSTAR 35 and 36

    Pavlis, E. C. / Beard, R. L. / United States et al. | British Library Conference Proceedings | 1995


    Laser ranging retroreflector

    Faller, J. E. / Alley, C. O. / Bender, P. L. et al. | NTRS | 1972


    Laser ranging retroreflector

    Alley, C. O. / Bender, P. L. / Currie, D. G. et al. | NTRS | 1971


    Lunar Pathfinder Laser Retroreflector Array

    Stephen M Merkowitz / Zachary Denny / Edward Aaron et al. | NTRS