Handbook of Propagation Effects for Vehicular and ... - Courses

Investigations from Different Countries 7-15
Probability (%) > Abscissa
100
9
8
7
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5
4
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2
10
9
8
7
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1
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Distribution Extremes
Upper Extreme
Lower Extreme
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Fade Depth (dB)
Figure 7-16: Extremes of eight measured distributions in Japan at 1.5 GHz in elevation
angle range 40° to 50° in Japan [Obara et al., 1993].
Ryuko and Saruwatari [1991] and Saruwatari and Ryuko [1989] also describe a series of
LMSS measurements in Japan employing L-Band (1.5 GHz) transmissions from the
Japanese ETS-V satellite which were received by a moving van. Figure 7-17 shows three
distributions corresponding to an elevation angle of approximately 46°. The distributions
were derived from measurements executed on two expressways and one “old road”
running alongside one of the expressways (Kan-etsu). Both expressways traverse flat
areas, mountainous terrain, and have many two-level crossings with local roads. The
“old road” runs through local urban areas, suburbs, farms, with a number of bridge
crossings for pedestrians.