HIGH-ELEVATION ANGLE PROPAGATION RESULTS, APPLIED TO A STATISTICAL-MODEL AND AN ENHANCED EMPIRICAL-MODEL

The results of a recent narrowband propagation experiment at high elev ation angles have been further analysed to determine fit coefficients for the model proposed by Lutz et al. Results for the suburban and woo ded environmental categories for elevation angles greater than 60-degr ees are reported. An empirical model for L and S bands covering elevat ion angles from 20 to 80-degrees has been developed. The model combine s the empirical roadside shadowing model, and the empirical fading mod el derived from the results of a narrowband propagation campaign, and improves the existing CCIR model.