The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere
In some frequency-sharing studies between fixed service and space radiocommunication services, including fixed-satellite, broadcasting-satellite, and space science services, it is necessary to estimate the apparent elevation angle of a space station, taking into account the atmospheric refraction. R...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2020/2438515 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832556826231570432 |
|---|---|
| author | Leke Lin Xiangming Chen Ranran Hu Zhenwei Zhao |
| author_facet | Leke Lin Xiangming Chen Ranran Hu Zhenwei Zhao |
| author_sort | Leke Lin |
| collection | DOAJ |
| description | In some frequency-sharing studies between fixed service and space radiocommunication services, including fixed-satellite, broadcasting-satellite, and space science services, it is necessary to estimate the apparent elevation angle of a space station, taking into account the atmospheric refraction. Recommendations ITU-R (International Telecommunication Union—Radiocommunication) P.834-9 and F.1333-1 detail similar methods regarding calculating the refraction correction for the elevation angle of the mean annual global reference atmosphere. Herein, both methods are approximated using the bending angle from the ground to the infinity height; this approach is most suitable for geosynchronous orbit satellites. In this paper, new methods for calculating the refraction correction for the elevation angle are proposed regarding the mean annual global reference atmosphere given in Recommendation ITU-R P.835-6. Specifically, the results of the ray-tracing method are fitted. The height of the new formulae is 100 km above sea level. For higher altitudes, correction methods are given based on free-space propagation. The proposed methods can be applied to the calculation of the refraction correction for the elevation of the mean annual global reference atmosphere for satellites at different orbital heights. Furthermore, these new methods compare favourably to the two ITU-R Recommendations. |
| format | Article |
| id | doaj-art-7de3ac9e961e4168819cf0c00d9b330e |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-7de3ac9e961e4168819cf0c00d9b330e2025-02-03T05:44:15ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772020-01-01202010.1155/2020/24385152438515The Refraction Correction of Elevation Angle for the Mean Annual Global Reference AtmosphereLeke Lin0Xiangming Chen1Ranran Hu2Zhenwei Zhao3National Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, ChinaNational Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, ChinaNational Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, ChinaNational Key Laboratory of Electromagnetic Environment, China Research Institute of Radiowave Propagation, Qingdao 266107, ChinaIn some frequency-sharing studies between fixed service and space radiocommunication services, including fixed-satellite, broadcasting-satellite, and space science services, it is necessary to estimate the apparent elevation angle of a space station, taking into account the atmospheric refraction. Recommendations ITU-R (International Telecommunication Union—Radiocommunication) P.834-9 and F.1333-1 detail similar methods regarding calculating the refraction correction for the elevation angle of the mean annual global reference atmosphere. Herein, both methods are approximated using the bending angle from the ground to the infinity height; this approach is most suitable for geosynchronous orbit satellites. In this paper, new methods for calculating the refraction correction for the elevation angle are proposed regarding the mean annual global reference atmosphere given in Recommendation ITU-R P.835-6. Specifically, the results of the ray-tracing method are fitted. The height of the new formulae is 100 km above sea level. For higher altitudes, correction methods are given based on free-space propagation. The proposed methods can be applied to the calculation of the refraction correction for the elevation of the mean annual global reference atmosphere for satellites at different orbital heights. Furthermore, these new methods compare favourably to the two ITU-R Recommendations.http://dx.doi.org/10.1155/2020/2438515 |
| spellingShingle | Leke Lin Xiangming Chen Ranran Hu Zhenwei Zhao The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere International Journal of Antennas and Propagation |
| title | The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere |
| title_full | The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere |
| title_fullStr | The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere |
| title_full_unstemmed | The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere |
| title_short | The Refraction Correction of Elevation Angle for the Mean Annual Global Reference Atmosphere |
| title_sort | refraction correction of elevation angle for the mean annual global reference atmosphere |
| url | http://dx.doi.org/10.1155/2020/2438515 |
| work_keys_str_mv | AT lekelin therefractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT xiangmingchen therefractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT ranranhu therefractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT zhenweizhao therefractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT lekelin refractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT xiangmingchen refractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT ranranhu refractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere AT zhenweizhao refractioncorrectionofelevationangleforthemeanannualglobalreferenceatmosphere |