|Abstract:||GNSS antennas suffer from errors, dependent on the direction of the incoming GNSS signal. These errors can be calibrated. We present an absolute field calibration method based on a 6-axis industrial robot. The antenna to be calibrated is set-up on the robot at one end of a short baseline. The robot brings the antenna into 1440 different orientations without changing its coordinates, every orientation lasting for 1 second. The data is analyzed in a triple-difference approach. The estimated GPS L1 phase center corrections show a repeatability better than a millimeter (0.6 mm RMS). We belief that this new method is of interest to the scientific community, as only a few independent field calibration systems exits.|
Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018)
September 24 - 28, 2018
Hyatt Regency Miami
|Pages:||3909 - 3926|
|Cite this article:||
Willi, Daniel, Koch, Donovan, Meindl, Michael, Rothacher, Markus, "Absolute GNSS Antenna Phase Center Calibration with a Robot," Proceedings of the 31st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS+ 2018), Miami, Florida, September 2018, pp. 3909-3926.
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