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The impact of tropospheric delay towards the accuracy of GPS height determination

When Global Positioning System (GPS) satellite signals propagates through the earth’s neutral atmosphere, the radio signals are affected significantly by the variability of its refractive index, which causes primarily in the delay of the arrival, usually referred to as the tropospheric delay. Withou...

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主要な著者: Yahya, Mohd. Hafiz, Kamaruddin, Md. Nor
フォーマット: Conference or Workshop Item
言語:English
出版事項: 2007
主題:
TA Engineering (General). Civil engineering (General)
オンライン･アクセス:http://eprints.utm.my/id/eprint/7723/1/ISG_GNSS07.pdf
http://eprints.utm.my/id/eprint/7723/
https://www.researchgate.net/publication/242514909_THE_IMPACT_OF_TROPOSPHERIC_DELAY_TOWARDS_THE_ACCURACY_OF_GPS_HEIGHT_DETERMINATION
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spelling my.utm.77232017-09-10T05:12:21Z http://eprints.utm.my/id/eprint/7723/ The impact of tropospheric delay towards the accuracy of GPS height determination Yahya, Mohd. Hafiz Kamaruddin, Md. Nor TA Engineering (General). Civil engineering (General) When Global Positioning System (GPS) satellite signals propagates through the earth’s neutral atmosphere, the radio signals are affected significantly by the variability of its refractive index, which causes primarily in the delay of the arrival, usually referred to as the tropospheric delay. Without proper compensation, the delay affects significantly to the accuracy of GPS derived position especially in height component therefore is a matter of concern for geodetic and other high accuracy applications.With a view to visualize any discrepancies on height component of GPS measurement due to the tropospheric delay, RINEX data of MyRTKnet from five GPS reference stations in Johor have been integrated with GPS and ground local meteorological observations. Being held at one of GPS point in UTM, changes made on the antenna height at each observation session. In order to determine the amount of GPS signal propagation delay, a computer program namely TROPO.exe has also been developed based on a refined Saastamoinen tropospheric model. Results show that the tropospheric delay is a distance-dependent error that will increase when the baseline lenght between two stations increases. Furthermore, it also varies with changes in meteorological condition of daily observation. Based on another test using simulated data, it is proved that the amount of tropospheric delay will decrease when the antenna height increases. 2007 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/7723/1/ISG_GNSS07.pdf Yahya, Mohd. Hafiz and Kamaruddin, Md. Nor (2007) The impact of tropospheric delay towards the accuracy of GPS height determination. In: Joint International Symposium and Exhibition on Geoinformation and International Symposium and Exhibition on Gps/Gnss 2007, 5-7 Nov 2007, Persada Johor INternational Convention Centre,Johor Bahru, Johor. https://www.researchgate.net/publication/242514909_THE_IMPACT_OF_TROPOSPHERIC_DELAY_TOWARDS_THE_ACCURACY_OF_GPS_HEIGHT_DETERMINATION
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Yahya, Mohd. Hafiz
Kamaruddin, Md. Nor
The impact of tropospheric delay towards the accuracy of GPS height determination
description When Global Positioning System (GPS) satellite signals propagates through the earth’s neutral atmosphere, the radio signals are affected significantly by the variability of its refractive index, which causes primarily in the delay of the arrival, usually referred to as the tropospheric delay. Without proper compensation, the delay affects significantly to the accuracy of GPS derived position especially in height component therefore is a matter of concern for geodetic and other high accuracy applications.With a view to visualize any discrepancies on height component of GPS measurement due to the tropospheric delay, RINEX data of MyRTKnet from five GPS reference stations in Johor have been integrated with GPS and ground local meteorological observations. Being held at one of GPS point in UTM, changes made on the antenna height at each observation session. In order to determine the amount of GPS signal propagation delay, a computer program namely TROPO.exe has also been developed based on a refined Saastamoinen tropospheric model. Results show that the tropospheric delay is a distance-dependent error that will increase when the baseline lenght between two stations increases. Furthermore, it also varies with changes in meteorological condition of daily observation. Based on another test using simulated data, it is proved that the amount of tropospheric delay will decrease when the antenna height increases.
format Conference or Workshop Item
author Yahya, Mohd. Hafiz
Kamaruddin, Md. Nor
author_facet Yahya, Mohd. Hafiz
Kamaruddin, Md. Nor
author_sort Yahya, Mohd. Hafiz
title The impact of tropospheric delay towards the accuracy of GPS height determination
title_short The impact of tropospheric delay towards the accuracy of GPS height determination
title_full The impact of tropospheric delay towards the accuracy of GPS height determination
title_fullStr The impact of tropospheric delay towards the accuracy of GPS height determination
title_full_unstemmed The impact of tropospheric delay towards the accuracy of GPS height determination
title_sort impact of tropospheric delay towards the accuracy of gps height determination
publishDate 2007
url http://eprints.utm.my/id/eprint/7723/1/ISG_GNSS07.pdf
http://eprints.utm.my/id/eprint/7723/
https://www.researchgate.net/publication/242514909_THE_IMPACT_OF_TROPOSPHERIC_DELAY_TOWARDS_THE_ACCURACY_OF_GPS_HEIGHT_DETERMINATION
_version_ 1643644839592460288
score 13.250246

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