The effect of UNBabc mapping function modification to GPS tropospheric delay
Tropospheric delay refers to the refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth, which causes longer distance traveled by the signal. The zenith tropospheric delay can be amplified by mapping function, especially f...
| Main Authors: | , , , , , , |
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| Format: | Citation Index Journal |
| Language: | English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://scholars.utp.edu.my/id/eprint/33/ http://scholars.utp.edu.my/id/eprint/33/1/paper.pdf |
| _version_ | 1848658905082626048 |
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| author | Abd.N., Matori H., Sakidin M.R., Abu Bakar A.R.M., Shariff M.S.Md., Noorani A., Mohamed A., Ahmad |
| author_facet | Abd.N., Matori H., Sakidin M.R., Abu Bakar A.R.M., Shariff M.S.Md., Noorani A., Mohamed A., Ahmad |
| author_sort | Abd.N., Matori |
| building | UTP Institutional Repository |
| collection | Online Access |
| description | Tropospheric delay refers to the refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth, which causes longer distance traveled by the signal. The zenith tropospheric delay can be amplified by mapping function, especially for less than 5 degrees elevation angle. Many mapping functions have been established however the mapping functions give large value when the elevation angles less than 5 degrees. A modification of UNBabc mapping function has been proposed. The modified UNBabc mapping function model shows a significant reduction of mapping function scale factor. As the coefficient of the zenith tropospheric delay, the value of mapping function will affect total tropospheric delay. The modification UNBabc mapping function has improved the tropospheric delay up to 19.1 percent at two degree elevation angles.
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| first_indexed | 2025-11-13T07:21:57Z |
| format | Citation Index Journal |
| id | oai:scholars.utp.edu.my:33 |
| institution | Universiti Teknologi Petronas |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-13T07:21:57Z |
| publishDate | 2008 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:scholars.utp.edu.my:332017-01-19T08:26:22Z http://scholars.utp.edu.my/id/eprint/33/ The effect of UNBabc mapping function modification to GPS tropospheric delay Abd.N., Matori H., Sakidin M.R., Abu Bakar A.R.M., Shariff M.S.Md., Noorani A., Mohamed A., Ahmad TA Engineering (General). Civil engineering (General) Tropospheric delay refers to the refraction of the Global Positioning System (GPS) signal as it passes through the neutral atmosphere from the satellite to the earth, which causes longer distance traveled by the signal. The zenith tropospheric delay can be amplified by mapping function, especially for less than 5 degrees elevation angle. Many mapping functions have been established however the mapping functions give large value when the elevation angles less than 5 degrees. A modification of UNBabc mapping function has been proposed. The modified UNBabc mapping function model shows a significant reduction of mapping function scale factor. As the coefficient of the zenith tropospheric delay, the value of mapping function will affect total tropospheric delay. The modification UNBabc mapping function has improved the tropospheric delay up to 19.1 percent at two degree elevation angles. 2008 Citation Index Journal NonPeerReviewed application/pdf en http://scholars.utp.edu.my/id/eprint/33/1/paper.pdf Abd.N., Matori and H., Sakidin and M.R., Abu Bakar and A.R.M., Shariff and M.S.Md., Noorani and A., Mohamed and A., Ahmad (2008) The effect of UNBabc mapping function modification to GPS tropospheric delay. [Citation Index Journal] |
| spellingShingle | TA Engineering (General). Civil engineering (General) Abd.N., Matori H., Sakidin M.R., Abu Bakar A.R.M., Shariff M.S.Md., Noorani A., Mohamed A., Ahmad The effect of UNBabc mapping function modification to GPS tropospheric delay |
| title | The effect of UNBabc mapping function modification to GPS tropospheric delay
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| title_full | The effect of UNBabc mapping function modification to GPS tropospheric delay
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| title_fullStr | The effect of UNBabc mapping function modification to GPS tropospheric delay
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| title_full_unstemmed | The effect of UNBabc mapping function modification to GPS tropospheric delay
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| title_short | The effect of UNBabc mapping function modification to GPS tropospheric delay
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| title_sort | effect of unbabc mapping function modification to gps tropospheric delay |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://scholars.utp.edu.my/id/eprint/33/ http://scholars.utp.edu.my/id/eprint/33/1/paper.pdf |