Risk overbounding for ionospheric gradient monitor using geometry-free double differenced carrier phase measurements
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DOI: 10.1007/s10291-024-01669-9
Abstract: Ionosphere anomaly can cause large spatial gradients in the double-differenced carrier phase (DDCP) measurements. Taking advantage of this characteristic, the ionospheric gradient monitor (IGM) is designed with multiple ground reference stations to detect threatening ionospheric… read more here.
Keywords: differenced carrier; carrier phase; igm; double differenced ... See more keywords
Inter-system biases in GPS and BDS combined relative positioning by double-differenced observations
Sign Up to like & getrecommendations! Published in 2019 at "Measurement Science and Technology"
DOI: 10.1088/1361-6501/ab1cb0
Abstract: The effects of inter-system biases (ISBs) in multi-global navigation satellite system (GNSS) combined positioning cannot be ignored in zero-differenced observations. Furthermore, for relative positioning of multi-GNSS from double-differenced observations, there also exists double-differenced ISB, and… read more here.
Keywords: inter system; double differenced; relative positioning; differenced observations ... See more keywords