Title :
Observed effects of wind on the intensity and spectrum of scintillation
Author :
Savvaris, Ali ; Kassianides, Constantinos N. ; Otung, Ifiok E.
Author_Institution :
Sch. of Electron., Glamorgan Univ., Pontypridd, UK
Abstract :
This paper investigates the observed effect of cross-path wind on the corner frequency of the scintillation power spectrum. Propagation data from ITALSAT satellite were used in this investigation, a satellite beacon operating at 18.68 GHz, 39.59 GHz and 49.49 GHz and covering two months, June and July 1997. The data were obtained at Sparsholt (51.5850° N, 1.5033°W), UK, at an elevation angle θ=29.9° and at a sampling rate of 1 Hz, using a Cassegrain antenna of diameter 1.22 m for the 18.68 GHz and 0.61 m for the 39.59 GHz and 49.49 GHz. The results show some correlation between the corner frequency and transverse wind speed, a weaker correlation with over-all wind speed and a poor correlation between scintillation intensity and wind speed
Keywords :
atmospheric electromagnetic wave propagation; atmospheric turbulence; microwave propagation; millimetre wave propagation; reflector antennas; satellite communication; scintillation; spectral analysis; wind; 0.305 m; 0.61 m; 18.68 GHz; 39.59 GHz; 49.49 GHz; Cassegrain antenna; ITALSAT satellite; SHF; Sparsholt; UHF; UK; atmospheric refractive index; corner frequency; correlation; cross-path wind; diameter; elevation angle; propagation data; sampling rate; satellite beacon; scintillation intensity; scintillation power spectrum; scintillation spectrum; transverse wind speed; turbulent irregularities;
Conference_Titel :
Antennas and Propagation, 2001. Eleventh International Conference on (IEE Conf. Publ. No. 480)
Conference_Location :
Manchester
Print_ISBN :
0-85296-733-0
DOI :
10.1049/cp:20010347
