درباره ما
ITU-R P.531-12
Ionospheric propagation data and prediction methods required for the design of satellite services and systems
Year: 2013
Abstract: Recommendation ITU-R P.531 describes a method for evaluating of the ionospheric propagation effects on Earth-space paths at frequencies from 0.1 to 12 GHz. The following effects may take place on an Earth-space path when the signal is passing through the ionosphere:
– rotation of the polarization (Faraday rotation) due to the interaction of the electromagnetic wave with the ionized medium in the Earth's magnetic field along the path;
– group delay and phase advance of the signal due to the total electron content (TEC) accumulated along the path;
– rapid variation of amplitude and phase (scintillations) of the signal due to small-scale irregular structures in the ionosphere;
– a change in the apparent direction of arrival due to refraction;
– Doppler effects due to non-linear polarization rotations and time delays.
The data and methods described in this Recommendation are applicable for planning satellite systems, in respective ranges of validity indicated in Annex 1.
– rotation of the polarization (Faraday rotation) due to the interaction of the electromagnetic wave with the ionized medium in the Earth's magnetic field along the path;
– group delay and phase advance of the signal due to the total electron content (TEC) accumulated along the path;
– rapid variation of amplitude and phase (scintillations) of the signal due to small-scale irregular structures in the ionosphere;
– a change in the apparent direction of arrival due to refraction;
– Doppler effects due to non-linear polarization rotations and time delays.
The data and methods described in this Recommendation are applicable for planning satellite systems, in respective ranges of validity indicated in Annex 1.
Show full item record
| contributor author | ITU-R - International Telecommunication Union/ITU Radiocommunication Sector | |
| date accessioned | 2017-09-04T18:13:55Z | |
| date available | 2017-09-04T18:13:55Z | |
| date copyright | 2013.09.01 | |
| date issued | 2013 | |
| identifier other | HGHDHFAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std;query=autho47037D8369B/handle/yse/196882 | |
| description abstract | Recommendation ITU-R P.531 describes a method for evaluating of the ionospheric propagation effects on Earth-space paths at frequencies from 0.1 to 12 GHz. The following effects may take place on an Earth-space path when the signal is passing through the ionosphere: – rotation of the polarization (Faraday rotation) due to the interaction of the electromagnetic wave with the ionized medium in the Earth's magnetic field along the path; – group delay and phase advance of the signal due to the total electron content (TEC) accumulated along the path; – rapid variation of amplitude and phase (scintillations) of the signal due to small-scale irregular structures in the ionosphere; – a change in the apparent direction of arrival due to refraction; – Doppler effects due to non-linear polarization rotations and time delays. The data and methods described in this Recommendation are applicable for planning satellite systems, in respective ranges of validity indicated in Annex 1. | |
| language | English | |
| title | ITU-R P.531-12 | num |
| title | Ionospheric propagation data and prediction methods required for the design of satellite services and systems | en |
| type | standard | |
| page | 24 | |
| status | Active | |
| tree | ITU-R - International Telecommunication Union/ITU Radiocommunication Sector:;2013 | |
| contenttype | fulltext |