Extreme values in ionospheric radio propagation
Proposals are made for Earth-space and space-space paths to apply the term ?propagation degradation probability?, analogous to ?basic circuit reliability? adopted within the Radiocommunication Sector of the International Telecommunication Union (ITU-R) to quantify the performance of HF terrestrial i...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2002-06-01
|
| Series: | Annals of Geophysics |
| Subjects: | |
| Online Access: | http://www.annalsofgeophysics.eu/index.php/annals/article/view/3493 |
| _version_ | 1818067158047916032 |
|---|---|
| author | P. A. Bradley |
| author_facet | P. A. Bradley |
| author_sort | P. A. Bradley |
| collection | DOAJ |
| description | Proposals are made for Earth-space and space-space paths to apply the term ?propagation degradation probability?, analogous to ?basic circuit reliability? adopted within the Radiocommunication Sector of the International Telecommunication Union (ITU-R) to quantify the performance of HF terrestrial ionospheric radio circuits. The principal elements characterising propagation impairments are described and formulae and a table given by the ITU-R are reproduced relating many of these effects to the path total electron content. Expressions are provided enabling estimates of the probabilities of occurrence of user-specified extreme values to be estimated in terms of their median quantities and day-to-day variabilities. The need is stressed for additional data collection and analyses both to refine the median values and to derive the required reference variability factors. |
| first_indexed | 2024-12-10T15:19:14Z |
| format | Article |
| id | doaj.art-5ea5d18dcee746779abf150bf9f73894 |
| institution | Directory Open Access Journal |
| issn | 1593-5213 2037-416X |
| language | English |
| last_indexed | 2024-12-10T15:19:14Z |
| publishDate | 2002-06-01 |
| publisher | Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
| record_format | Article |
| series | Annals of Geophysics |
| spelling | doaj.art-5ea5d18dcee746779abf150bf9f738942022-12-22T01:43:43ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2002-06-0145110.4401/ag-3493Extreme values in ionospheric radio propagationP. A. BradleyProposals are made for Earth-space and space-space paths to apply the term ?propagation degradation probability?, analogous to ?basic circuit reliability? adopted within the Radiocommunication Sector of the International Telecommunication Union (ITU-R) to quantify the performance of HF terrestrial ionospheric radio circuits. The principal elements characterising propagation impairments are described and formulae and a table given by the ITU-R are reproduced relating many of these effects to the path total electron content. Expressions are provided enabling estimates of the probabilities of occurrence of user-specified extreme values to be estimated in terms of their median quantities and day-to-day variabilities. The need is stressed for additional data collection and analyses both to refine the median values and to derive the required reference variability factors.http://www.annalsofgeophysics.eu/index.php/annals/article/view/3493ionosphereionospheric propagation |
| spellingShingle | P. A. Bradley Extreme values in ionospheric radio propagation Annals of Geophysics ionosphere ionospheric propagation |
| title | Extreme values in ionospheric radio propagation |
| title_full | Extreme values in ionospheric radio propagation |
| title_fullStr | Extreme values in ionospheric radio propagation |
| title_full_unstemmed | Extreme values in ionospheric radio propagation |
| title_short | Extreme values in ionospheric radio propagation |
| title_sort | extreme values in ionospheric radio propagation |
| topic | ionosphere ionospheric propagation |
| url | http://www.annalsofgeophysics.eu/index.php/annals/article/view/3493 |
| work_keys_str_mv | AT pabradley extremevaluesinionosphericradiopropagation |