抄録
We have estimated "distribution of electric field strength" and "delay time" in urban area. The estimation can provide efficient service for digitized communication system in terrestrial broadcasting, satellite broadcasting, cellular phone and PHS. This paper describes multi-path components for estimation of radio propagation characteristics. Measurements have been carried out in Kagoshima University to obtain field strengths, which are compared with the predictions. Differences between measured and calculated field strength are within about 5dB. In addition, we have estimated delayed waves in this model. We think that efficient digital communication services can be provided by these estimations.
