A summary and assessment of the 20/30 GHz ATS-6 propagation data collected during the European phase
Abstract
The 20/30 GHz propagation data collected during the European phase of the ATS-6 program is assessed from a system standpoint. Firstly, attenuation statistics from 9 sites, representing (for 30 GHz) a total data base of 3.3 years, are compared with the ESA long term 11 GHz radiometer data, using suitable scaling factors. The two sets of data are remarkably close. Attention is then drawn to the cross-polarization results from ATS-6 and in particular to the discovery of severe depolarization on transmission through ice particles. Certain features of this type of cross-polarization are described, including a lack of correlation with attenuation and a well defined, near quadrature phase relationship to the copolar channel. Finally the ATS-6 site diversity measurements and scintillation investigations are discussed.
- Publication:
-
Advanced Satellite Communication Systems using the 20 to 30 GHz Bands
- Pub Date:
- January 1978
- Bibcode:
- 1978ascs.rept..245W
- Keywords:
-
- Atmospheric Attenuation;
- Millimeter Waves;
- Superhigh Frequencies;
- Ats 6;
- Cross Polarization;
- Microwave Attenuation;
- Radiometers;
- Satellite Observation;
- Spacecraft Communication;
- Wave Propagation;
- Communications and Radar