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RECOMMENDATION ITU-R P.834-6
Effects of tropospheric refraction on radiowave propagation
Scope
Annex 1
1 Ray bending
2 Effective Earth
radius
3 Modified
refractive index
4 Apparent
boresight angle on slant paths
4.1
Introduction
4.2
Visibility of space station
4.3
Estimation of the apparent elevation angle
4.4
Summary of calculations
4.5
Measured results of apparent boresight angle
5 Focusing and defocusing of a wave for
propagation through the atmosphere
6 Effective radio
path length and its variations
7 Propagation in
ducting layers
7.1
Influence of elevation angle
7.2
Minimum trapping frequency