Title :
Extracting scintillations from satellite beacon propagation data
Author :
Otung, I.E. ; Al-Nuaimi, M.O. ; Evans, B.G.
Author_Institution :
Radiowave Propagation Res. Unit, Univ. of Glamorgan, Pontypridd, UK
fDate :
10/1/1998 12:00:00 AM
Abstract :
Beacon measurements on a moderate elevation satellite link at 20 and 30 GHz during concurrent scintillation and rain attenuation are analyzed. The spectra of the two beacon signals are compared and scintillation amplitudes are extracted from the raw beacon data using a high-pass filter set at 14 different cutoff frequencies fc ranging between 2-400 mHz. The effect on scintillation statistics of the choice of fc and the dependence of this choice on path elevation angle are discussed
Keywords :
electromagnetic wave absorption; electromagnetic wave scattering; fading; microwave propagation; rain; satellite links; spectral analysis; statistical analysis; tropospheric electromagnetic wave propagation; 2 to 400 mHz; 20 to 30 GHz; SHF; atmospheric refractive index discontinuities; beacon measurements; beacon signals spectra; concurrent scintillation; cutoff frequencies; high-pass filter; moderate elevation satellite link; path elevation angle; rain attenuation; random fades; satellite beacon propagation data; scattering; scintillation amplitudes; scintillation statistics; Attenuation; Cutoff frequency; Data mining; Filters; Fluctuations; Meteorology; Rain; Satellite broadcasting; Satellite communication; Statistics;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
