Title :
Preliminary results on scintillation intensity frequency scaling from the Virginia Tech OLYMPUS experiment
Author :
Haidara, F. ; Bostian, C.W.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The VA Tech OLYMPUS propagation experiment, which includes 12, 20, and 30 GHz beacon receivers at an elevation angle of 14 degrees , provides valuable multifrequency scintillation data. The frequency scaling law, of the scintillation intensity derived from V.I. Tatarski´s (1961) weak fluctuation theory is compared to experimental results. An analysis of a few scintillation events indicates that for large scintillations the scaling ratios of the scintillation intensity are well predicted by the theory. For small scintillations it is necessary to take the effects of the thermal noise into account.<>
Keywords :
radiowave propagation; satellite links; scintillation; tropospheric electromagnetic wave propagation; 12 GHz; 20 GHz; 30 GHz; EHF; SHF; Virginia Tech OLYMPUS experiment; beacon receivers; elevation angle; frequency scaling law; multifrequency scintillation data; propagation experiment; radiowave propagation; scaling ratios; the scintillation intensity; thermal noise; weak fluctuation theory; Aperture antennas; Communication systems; Earth; Equations; Fluctuations; Frequency; Receiving antennas; Refractive index; Scattering; Terrestrial atmosphere;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221939
