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Reference systems

  • Bernhard Hofmann-Wellenhof
  • Herbert Lichtenegger
  • James Collins

Abstract

Consider the basic observation equation which relates the range ϱ with the instantaneous position vector \( \underline \varrho ^S \) of a satellite and the position vector of \( \underline \varrho _R \) the observing site:
$$ \varrho = \left\| {\underline \varrho ^S - \underline \varrho _R } \right\| \cdot $$
(3.1)
In Eq. (3.1) both vectors must be expressed in a uniform coordinate system. The definition of a three-dimensional Cartesian system requires a convention for the orientation of the axes and for the position of the origin.

Keywords

Very Long Baseline Interferometry Polar Motion Julian Date Sidereal Time International Earth Rotation Service 
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 1992

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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