GPS Solutions

, Volume 16, Issue 1, pp 117–126 | Cite as

Characterization of Compass M-1 signals

  • André HauschildEmail author
  • Oliver Montenbruck
  • Jean-Marie Sleewaegen
  • Lennard Huisman
  • Peter J. G. Teunissen
Original Article


An analysis of observations from China’s first medium earth orbit satellite Compass M-1 is presented, with main focus on the first orbit and clock solution for this satellite. The orbit is computed from laser ranging measurements. Based on this orbit solution, the apparent clock offset is estimated using measurements from two GNSS receivers, which allow Compass tracking. The analysis of the clock solutions reveals unexpectedly high dynamics in the pseudorange and carrier-phase observations. Furthermore, carrier-to-noise density ratio, pseudorange noise, and multipath are analyzed and compared to GPS and GIOVE. The results of the clock analysis motivate further research on the signals of the geostationary satellites of the Compass constellation.


Compass M-1 Beidou 2A Signal analysis Orbit and clock determination 


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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • André Hauschild
    • 1
    Email author
  • Oliver Montenbruck
    • 1
  • Jean-Marie Sleewaegen
    • 2
  • Lennard Huisman
    • 3
  • Peter J. G. Teunissen
    • 4
  1. 1.German Space Operations Center (GSOC)Deutsches Zentrum für Luft-und Raumfahrt (DLR)WesslingGermany
  2. 2.Septentrio Satellite NavigationLeuvenBelgium
  3. 3.GNSS Research Centre, Curtin University of TechnologyPerthAustralia
  4. 4.DEOS, Delft University of TechnologyDelftThe Netherlands

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