Title :
Observed effects of cloud and wind on the intensity and spectrum of scintillation
Author :
Savvaris, Ali ; Kassianides, Constantinos N. ; Otung, Ifiok E.
Author_Institution :
Sch. of Electron., Univ. of Glamorgan, Pontypridd, UK
fDate :
6/1/2004 12:00:00 AM
Abstract :
This paper examines the observed effects of wind and cloud presence on the intensity and power spectrum of tropospheric scintillation, using propagation data recorded during a three-month period (May-July 1997) at Sparsholt from the ITALSAT satellite beacons at 39.59 and 49.49 GHz. The results show strong correlation between corner frequency and transverse wind speed, a weaker correlation with overall wind speed and a negligible correlation between scintillation intensity and transverse wind speed. Furthermore, it was found that the presence of cumulus clouds led on average to increased scintillation levels and a reduced correlation of the corner frequency with wind speed.
Keywords :
clouds; meteorology; millimetre wave propagation; satellite communication; scintillation; tropospheric electromagnetic wave propagation; wind; 39.59 GHz; 49.59 GHz; Sparsholt; cumulus cloud presence; data recorded propagation; earth-space radiowave propagation; frequency correlation; meteorology; power spectrum; satellite beacon; satellite communication; scintillation intensity; scintillation level; scintillation spectrum; transverse wind speed; tropospheric scintillation; wind presence; Clouds; Frequency; Humidity; Ionosphere; Meteorology; Rain; Satellite broadcasting; Temperature; Terrestrial atmosphere; Wind speed; Cloud; earth-space radiowave propagation; meteorology; satellite communications; scintillation spectrum; tropospheric scintillation; wind;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.827515
