Title :
Frequency scaling of rain attenuation for satellite communication links
Author :
Laster, Jeff D. ; Stutzman, Warren L.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
11/1/1995 12:00:00 AM
Abstract :
One year of copolarized signal data from the OLYMPUS satellite´s 12, 20, and 30 GHz beacons were examined for frequency scaling of attenuation. The statistics of the ratios of attenuation in dB for the frequency pairs 30/20, 20/12, and 30/12 GHz computed at each 0.1 s-sample instant were found to be nearly independent of fade depth. It was found that attenuation in dB scales with frequency to the 1.9 power. Also, attenuation ratios computed from the separate statistics of attenuation at each frequency for the same level of occurrence are very close to those found from instantaneous attenuation ratios
Keywords :
electromagnetic wave absorption; electromagnetic wave polarisation; electromagnetic wave scattering; fading; microwave propagation; rain; satellite communication; tropospheric electromagnetic wave propagation; 12 GHz; 20 GHz; 30 GHz; OLYMPUS satellite; SHF; attenuation ratios; attenuation statistics; beacons; copolarized signal data; fade depth; frequency; frequency scaling; instantaneous attenuation ratios; rain attenuation; satellite communication links; Adaptive control; Attenuation measurement; Frequency measurement; Power control; Programmable control; Propagation losses; Rain; Satellite communication; Statistics; Transmitters;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
