GPS Solutions

, Volume 11, Issue 4, pp 269–280 | Cite as

Analysis of high-frequency multipath in 1-Hz GPS kinematic solutions

  • Clement Ogaja
  • Chalermchon Satirapod
Original Article


High-frequency multipath would be problematic for studies at seismic or antenna dynamical frequencies as one could mistakenly interpret them as signals. A simple procedure to identify high-frequency multipath from global positioning system (GPS) time series records is presented. For this purpose, data from four GPS base stations are analyzed using spectral analyses techniques. Additional data, such as TEQC report files of L1 pseudorange multipath, are also used to analyze the high-frequency multipath and confirmation of the high-frequency multipath inferred from the phase records. Results show that this simple procedure is effective in identification of high-frequency multipath. The inferred information can aid interpretation of multipath at the GPS site, and is important for a number of reasons. For example, the information can be used to study GPS site selections and/or installations.


Global positioning system (GPS) Multipath Time series analysis 



This study was done at Geoscience Australia. The Department of Sustainability and Environment (DSE), Victoria, supported the study and provided the 1-Hz data and GPSnet photos. Geoff Luton provided useful guidance during GPS data processing. The writers thank Kristine Larson (University of Colorado), Mark Schenewerk and the anonymous reviewer for their comments.


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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  1. 1.Geoscience AustraliaCanberraAustralia
  2. 2.Department of Surveying EngineeringChulalongkorn UniversityBangkokThailand

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