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Communication Dans Un Congrès Année : 2019

Preliminary Results of the THOR7 Propagation Experiment in the North Pole Region

Résumé

A propagation experiment funded by ESA with support from CNES has been deployed in Svalbard (Northern Norway, 80° latitude North) in order to study propagation impairments at Ka-band caused by the troposphere at high latitudes and low elevation angles in representative conditions for GEO satcoms systems in the Artic region. In this context, a NASA Glenn Research Centre beacon receiver, operated by KSAT in Norway, measures the signal from the THOR7 satellite at a 2.65° elevation angle since March 2016. ONERA processes and analyses the data since the beginning of the experiment. At this stage 2 years of propagation data from the satellite have been gathered. An Atmospheric Numerical Simulator relying on the high resolution meteorological model (WRF-ARW) is used to generate 3D states of the atmosphere during a concurrent period to the experiment at high spatial & temporal resolutions. Propagation calculations based upon those outputs are then conducted to derive simulated attenuation time series between the beacon receiver and THOR7. Results show a fairly good statistical agreement between the measured and simulated attenuation time series whereas the simulated statistics seem to underestimate the overall attenuation for all percentages of time.
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Dates et versions

hal-02417523 , version 1 (18-12-2019)

Identifiants

  • HAL Id : hal-02417523 , version 1

Citer

Julien Queyrel, Xavier Boulanger, Laurent Castanet, James Nessel, Michael Zemba, et al.. Preliminary Results of the THOR7 Propagation Experiment in the North Pole Region. 25th Ka and Broadband Communications Conference, Sep 2019, SORRENTO, Italy. ⟨hal-02417523⟩

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