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Publication Detail
Shadow matching: Improved GNSS accuracy in Urban canyons
  • Publication Type:
    Journal article
  • Publication Sub Type:
    Journal Article
  • Authors:
    Groves PD, Wang L, Ziebart M
  • Publication date:
    01/02/2012
  • Journal:
    GPS World
  • Volume:
    23
  • Issue:
    2
  • Status:
    Published
  • Print ISSN:
    1048-5104
Abstract
GNSS positioning in dense urban areas is unreliable, with accuracy particularly poor in the cross-street direction. One solution is shadow matching, a new positioning technique that uses 3D building models to predict which satellites are visible from different locations and compares this with the measured satellite visibility to determine position. This article presents test results of a preliminary shadow-matching algorithm in a London urban canyon and discusses the practical implementation of the technique.
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Author
Dept of Civil, Environ &Geomatic Eng
Author
Dept of Civil, Environ &Geomatic Eng
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