Observed effects of wind on the intensity and spectrum of scintillation

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/spl deg/ N, 1.5033/spl deg/W), UK, at an elevation angle /spl theta/=29.9/spl deg/ 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.