Recommendation ITU-R P.531-16
Policy on Intellectual Property Right (IPR)
Annex
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 Ionospheric refractive index
4.2.1 Ionospheric refractive
phase index
4.2.2 Ionospheric refractive
group index
4.3 Faraday rotation
4.4 Group delay
4.5 Dispersion
4.6 TEC rate of change
5
Principal degradation due to irregularities
5.1 Scintillation
5.2 Geographic, seasonal, local time and solar
dependence of scintillations
5.2.1 Geographic dependence of
scintillations
5.2.2 Seasonal, local time 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