Blar i NTNU Open på forfatter "Ramatschi, Markus"

Viser treff 1-4 av 4

    • On the Response of Polarimetric GNSS-Reflectometry to Sea Surface Roughness 

      Hoseini, Mostafa; Semmling, Maximilian; Nahavandchi, Hossein; Rennspiess, Erik; Ramatschi, Markus; Haas, Rüdiger; Strandberg, Joakim; Wickert, Jens (Journal article; Peer reviewed, 2021)
      Reflectometry of Global Navigation Satellite Systems (GNSS) signals from the ocean surface has provided a new source of observations to study the ocean-atmosphere interaction. We investigate the sensitivity and performance ...

    • Polarimetric GNSS-R Sea Level Monitoring using I/Q Interference Patterns at Different Antenna Configurations and Carrier Frequencies 

      Rajabi, Mahmoud; Hoseini, Mostafa; Nahavandchi, Hossein; Semmling, Maximillian; Ramatschi, Markus; Goli, Mehdi; Haas, Rudiger; Wickert, Jens (Peer reviewed; Journal article, 2021)
      Coastal sea level variation as an indicator of climate change is extremely important due to its large socioeconomic and environmental impacts. The ground-based global navigation satellite system (GNSS)-reflectometry (GNSS-R) ...

    • Remote Sensing of Precipitation Using Reflected GNSS Signals: Response Analysis of Polarimetric Observations 

      Asgarimehr, Milad; Hoseini, Mostafa; Semmling, Maximilian; Ramatschi, Markus; Camps, Adriano; Nahavandchi, Hossein; Haas, Rüdiger; Wickert, Jens (Journal article; Peer reviewed, 2021)
      For the first time, rain effects on the polarimetric observations of the global navigation satellite system reflectometry (GNSS-R) are investigated. The physical feasibility of tracking the modifications in the surface ...

    • Tidal harmonics retrieval using GNSS-R dual-frequency complex observations 

      Rajabi, Mahmoud; Hoseini, Mostafa; Nahavandchi, Hossein; Asgarimehr, Milad; Semmling, Maximilian; Ramatschi, Markus; Goli, Mehdi; Wickert, Jens (Peer reviewed; Journal article, 2023)
      Tidal analysis and methods for estimation and prediction of ocean tidal constitutes are essential in a large area of scientific disciplines, for example, navigation, onshore and offshore engineering, and production of green ...