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Kaj Grønbæk

Demonstrating Tools and Results of a Measurement Campaign for Indoor GPS Positioning

Research output: Contribution to conferencePosterResearchpeer-review


  • Mikkel Baun Kjærgaard, Denmark
  • Henrik Blunck, Denmark
  • Torben Godsk, Denmark
  • Thomas Toftkjær, Denmark
  • Dan Lund Christensen, Alexandra Institutet A/S, Denmark
  • Kaj Grønbæk
  • Department of Computer Science
It has been considered a fact that GPS performs too poorly inside buildings to provide usable indoor positioning. We demo raw measurements and results from a measurement campaign which show that using state-of-the-art receivers GPS availability is good in many buildings with standard material walls and roofs: The root mean squared accuracy of the measured positions is below five meters in wooden buildings and below ten meters in most of the investigated brick and concrete buildings. Lower accuracies, where observed, can be linked to either low signal-to-noise ratios, multipath phenomena or bad satellite constellation geometry. A comprehensive analysis of the measurement campaign appears as full paper in Pervasive 2010, titled Indoor Positioning Using GPS Revisited.

In this demonstration we present the campaign analysis results with an emphasis on visualization and animation.
Another focus of this demonstration lies on depicting the visualization tools and methods chosen for empirically analysing GNSS indoor performance.
Original languageEnglish
Publication year2010
Publication statusPublished - 2010
EventThe Eight International Conference on Pervasive Computing - Helsinki, Finland
Duration: 17 May 201020 May 2010


ConferenceThe Eight International Conference on Pervasive Computing

Bibliographical note

Demonstration at Pervasive 2010

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