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Earth, Planets and Space

, Volume 52, Issue 10, pp 777–782 | Cite as

An extended weight model for GPS phase observations

  • Andreas Wieser
  • Fritz K. Brunner
Open Access
Letter

Abstract

Low elevation data may be included in the processing of small scale engineering GPS applications, in order to improve satellite geometry and reduce the required observation time. Careful weighting of the phase observations is needed then, because of increased noise and systematic errors. The measured carrier-to-noise-power-density ratio (C/N0) has proven to be an excellent tool for the estimation of the random errors of the phase observables. In this paper an extended weight model using robust estimation is presented, in particular the Danish Method. This model combines the information inherent in C/N0 and the residuals of the double differenced phase observations in order to model random errors and signal distortion effects.

Keywords

Phase Error Weight Model Signal Distortion Phase Observation Double Difference 
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

© The Society of Geomagnetism and Earth, Planetary and Space Sciences (SGEPSS); The Seismological Society of Japan; The Volcanological Society of Japan; The Geodetic Society of Japan; The Japanese Society for Planetary Sciences. 2000

Authors and Affiliations

  1. 1.Engineering Surveying and MetrologyGraz University of TechnologyGrazAustria

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