Recommendation ITU-R P.531-15
Policy on Intellectual Property Right (IPR)
Annex 1
1 Introduction
2 Background
3 Considerations for VHF and
HF propagation
4 Prime degradations due to
background ionizations
4.1 TEC
4.1.1 NeQuick2-based
method
4.2 Faraday rotation
4.3 Group delay
4.4 Dispersion
4.5 TEC rate of change
5 Principal degradation due
to irregularities
5.1 Scintillation
5.2 Geographic,
seasonal and solar dependence of scintillations
5.3 Ionospheric
scintillation model
5.4 Instantaneous
statistics and spectrum behaviour
5.4.1 Instantaneous
statistics
5.4.2 Spectrum
behaviour
5.5 Geometric
consideration
5.5.1 Zenith
angle dependence
5.5.2 Seasonal-longitudinal
dependence
5.6 Cumulative
statistics
5.7 Simultaneous
occurrence of ionospheric scintillation and rain fading
5.8 Gigahertz
scintillation model
6 Absorption
6.1 Auroral absorption
6.2 Polar cap
absorption
7 Summary