درباره ما
ITU-R P.531-12
Ionospheric propagation data and prediction methods required for the design of satellite services and systems
| 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;jsessioutho1273177793325273135A68A10958014A0Fa/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 |
