Long-term amplitude scintillations at 97GHz on 6.5km urban link

The authors extend the frequency validity range of the Moulsley- Vilar model for amplitude scintillations. The results presented are derived from data collected at 97GHz using an experimental terrestrial line-of-sight link of 6.5km. Results on the seasonal dependence of scintillation amplitudes show that stronger fluctuations occur morc frequcntly in summer than in winter due to increased thermal conditions. In view of the long time period and the wide range of meteorological conditions involved, the resulting statistics are bclicved to be reliable.