Method to measure the Stokes parameters of GPS signals

C. J. Benton, C. N. Mitchell

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As Global Positioning System (GPS) signals travel to the ground, they are affected by the medium through which they propagate. Consequently, measurements of signal amplitude and phase are used in a variety of remote sensing applications. A limitation of current receiver systems is that they do not measure polarization. While GPS signals are transmitted with right-hand circular polarization, the same cannot necessarily be said for the signal reaching the antenna, and this difference will contain further information about the propagation path. This paper describes a method for combining two GPS receivers into a device that is capable of measuring the Stokes parameters of the signal. A mathematical procedure for converting the receiver data into the Stokes parameters is derived, and the results of proof-of-concept experiments are presented.
Original languageEnglish
Pages (from-to)7-18
Number of pages12
JournalRadio Science
Issue number1
Early online date8 Dec 2013
Publication statusPublished - 1 Jan 2014


  • GPS
  • scintillation
  • polarization
  • Stokes
  • ionosphere
  • GNSS


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