Theoretical prediction of mean field strength for urban mobile radio

Physical multipath propagation structure in urban areas is analyzed, showing ray-theoretical waves make a major contribution to a mean field strength on a street in a moderate-sized city. A computer-aided prediction system is used to calculate a mean field strength around an arbitrary receiving point on the ray-theoretical basis when building data are given. The prediction principle and the prototype prediction system are described. The predicted values are shown to exhibit appreciable agreement with the measured values, confirming the possibility of purely theoretical prediction