Site diversity advantage as a function of spacing and satellite elevation angle, derived from dual‐polarization radar data

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Abstract
A description is given of the application of dual‐polarization radar (linear, copolar transmit and receive) to estimate the site diversity advantage achieved by two hypothetical satellite receiving stations when attenuation by rain is present on the earth‐satellite path. The site diversity advantage is computed at 11.6 GHz for satellite elevation angles of 10°, 20°, and 30°, and for numerous spacings between the two receivers. The data collection scheme is described, and the limitations of the statistics discussed. A description is given of the computation, from the radar data, of the total path attenuation caused by rain cells and the problems of applying these techniques are discussed.