Measurements of complex envelopes a mobile scenarios at 450 MHz

The phase statistics of the narrowband mobile channel in an urban environment are measured and compared with theory. The phase derivative (the random FM frequency) follows closely a student's t-distribution with the Doppler spread as the determining parameter. Moving averages taken over 5-m lengths indicate the nonstationarity of the channel and the gradual shift between groups of reflectors. In a few cases, a two-ray model is effective in explaining the periodicities measured. Correlations between the various parameters are given. >