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Mathematical models for positioning

  • Bernhard Hofmann-Wellenhof
  • Herbert Lichtenegger
  • James Collins

Abstract

The code pseudorange at an epoch t can be modeled, cf. Eq. (6.2),by
$$R_i^j(t) = \ell _i^j(t) + c\Delta \delta _i^j(t) $$
(4.1)
Hereis, \(\ell _i^j(t) \)isthe measured code pseudorange between the observing site i and the satellite j \( \ell _i^j(t)\) is the geometric distance between the satellite and the observing point, and c is the speed of light. The last item to be explained is\(\Delta \ell _i^j(t)\).This clock bias represents the combined clock offsets of the satellite and the receiver clock with respect to GPS time, cf. Eq. (6.1).

Keywords

Carrier Phase Satellite Clock Integer Ambiguity Receiver Clock Geometric Distance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1994

Authors and Affiliations

  • Bernhard Hofmann-Wellenhof
    • 1
  • Herbert Lichtenegger
    • 1
  • James Collins
    • 2
  1. 1.Abteilung für Landesvermessung und LandinformationTechnische Universität GrazGrazAustria
  2. 2.GPS Services, Inc.RockvilleUSA

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