• On the cleansing and inspection of GPS ephemeris data 2000–2016 

      Lie, Arne; Morrison, Aiden; Sokolova, Nadezda; Topland, Morten (Chapter, 2017)
      Archived GPS ephemeris data for years 2000-2016 is investigated by cleansing and precision measures. The goal of this work was twofold: (1) to reveal and remove incorrect ephemeris data so that the cleansed data is as close ...
    • Phase scintillation decorrelation impact on multi-frequency users 

      Sokolova, Nadezda; Morrison, Aiden; Curran, James; Bavaro, Michele (Journal article; Peer reviewed, 2017)
      This paper discusses the phase scintillation decorrelation as observed between dual and triple frequency civil GNSS signals. Comparisons are made between the characteristics of data collected in Norway during events of ...
    • Public road infrastructure inventory in degraded global navigation satellite system signal environments 

      Sokolova, Nadezda; Morrison, Aiden; Haakonsen, Trond Arve (Journal article; Peer reviewed, 2015)
      Recent advancement of land-based mobile mapping enables rapid and cost-effective collection of highquality road related spatial information. Mobile Mapping Systems (MMS) can provide spatial information with subdecimeter ...