STATISTICAL CHARACTERIZATION OF X-BAND LINE-OF-SIGHT MULTIPATH-FADINGAND ITS ASSOCIATED VERTICAL DRIFT VELOCITY

Some useful regression relationships have been worked out for one of t he hops (Chapraula-Sikandarabad) of Delhi-Sikandarabad 11 GHz microwav e line-of-sight link based on multipath observations spread over two s uccessive years. Simple relationships for fade occurrence probability (P), number of fades (N), average fade duration (t) and the 'time belo w level' (T) have been given. In addition, an important meteorological parameter, namely, the average vertical drift velocity has been worke d out for various Fresnel zone heights and fade depths from the number of fades and average fade duration data based on a method suggested b y Bullington [Bell Syst Tech J (USA), 50 (1971) 2039].