Predicting near-time satellite signal attenuation at Ka-band using tropospheric weather forecast model
Predicting near-time satellite signal attenuation at Ka-band using tropospheric weather forecast model
- Author(s): K. Grythe ; L.E. Braten ; S.S. Ronning ; T. Tjelta
- DOI: 10.1049/cp.2018.0617
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- Author(s): K. Grythe ; L.E. Braten ; S.S. Ronning ; T. Tjelta Source: 12th European Conference on Antennas and Propagation (EuCAP 2018), 2018 page (5 pp.)
- Conference: 12th European Conference on Antennas and Propagation (EuCAP 2018)
- DOI: 10.1049/cp.2018.0617
- ISBN: 978-1-78561-816-1
- Location: London, UK
- Conference date: 9-13 April 2018
- Format: PDF
There are satellite communication applications where it is desirable to predict near time (e.g. 2 to 12 h) propagation losses at Ka-band due to hydrometeor precipitation. We present results from a project investigating the possibility and quality of short term prediction of satellite link attenuation at Ka-band. The starting point is a 67 h near time numerical weather prediction data from the Norwegian Meteorological Institute. A period of 3 months and for 3 sites in Norway have been studied. Based upon these accumulated 9 months of data, the precipitation along the satellite link to the ground terminal is calculated for every hour. The attenuation results from the model is compared to high accuracy contemporary measurements of the same path. If the forecast is predicting the presence of precipitation correctly, the predicted attenuation error has a low bias and the standard deviation value is typically in the order of 1.5 dB.
Inspec keywords: weather forecasting; satellite communication; rain; atmospheric techniques
Subjects: Water in the atmosphere (humidity, clouds, evaporation, precipitation); Weather analysis and prediction; Instrumentation and techniques for geophysical, hydrospheric and lower atmosphere research
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