WG2: Channel modelling for radio systems from C to W bandChair: Laurent Castanet, ONERA, France
The objective of this Working Group is mainly to study the influence of propagation on Global Integrated Systems operated at high frequencies above C-band and below W-band. The following applications systems have been identified:
- Terrestrial, aeronautical (aircrafts, UAVs, HAPs) or satellite telecommunication systems to deliver multimedia content to fixed or mobile terminals,
- Datalinks with Earth Observation and atmospheric remote sensing systems (especially Space-based Radar, radiometers), as well as with Space Exploration systems,
- Meteorology applications: data assimilation from communication systems.
The frequency bands of interest range from X to W band with a main focus on Ku band for very high availability systems and for tropical and equatorial areas, Ka band for access systems and Earth observation data downlink systems, Q/V band for backbone systems and W-band for Earth observation or space exploration. Ku and Ka bands are also of interest for future mobile satellite services or links with UAVs.
The following topics are currently studied by WG2 participants:
- Modelling of the high frequency LMS channel (interaction with ground & vegetation),
- Modelling of tropospheric effects (in clear sky and within precipitation systems),
- Modelling of meteorological phenomena,
- Retrieval of atmospheric parameters or ground/sea characteristics,
- Performances of adaptive Fade Mitigation Techniques,
- Interference issues between systems,
- How to combine the models for different applications.