Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning
At present, Global Navigation Satellite Systems (GNSS) users usually eliminate the influence of ionospheric delay of the first order items by dual-frequency ionosphere-free combination. But there is still residual ionospheric delay error of higher order term. The influence of the higher-order ionosp...
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doaj-ea70d6f9c8dc4b4daae5e8238f835a672021-02-02T00:34:28ZengKeAi Communications Co., Ltd.Geodesy and Geodynamics1674-98472016-09-017536937610.1016/j.geog.2016.06.005Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioningZhimin Liu0Yangyang Li1Jinyun Guo2Fei Li3College of Geomatics, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Geomatics, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Geomatics, Shandong University of Science and Technology, Qingdao 266590, ChinaCollege of Geomatics, Shandong University of Science and Technology, Qingdao 266590, ChinaAt present, Global Navigation Satellite Systems (GNSS) users usually eliminate the influence of ionospheric delay of the first order items by dual-frequency ionosphere-free combination. But there is still residual ionospheric delay error of higher order term. The influence of the higher-order ionospheric corrections on both GPS precision orbit determination and static Precise Point Positioning (PPP) are studied in this paper. The influence of higher-order corrections on GPS precision orbit determination, GPS observations and static PPP are analyzed by neglecting or considering the higher-order ionospheric corrections by using a globally distributed network which is composed of International GNSS Service (IGS) tracking stations. Numerical experimental results show that, the root mean square (RMS) in three dimensions of satellite orbit is 36.6 mm–35.5 mm. The maximal second-order ionospheric correction is 9 cm, and the maximal third-order ionospheric correction is 1 cm. Higher-order corrections are influenced by latitude and station distribution. PPP is within 3 mm in the directions of east and up. Furthermore, the impact is mainly visible in the direction of north, showing a southward migration trend, especially at the lower latitudes where the influence value is likely to be bigger than 3 mm.http://www.sciencedirect.com/science/article/pii/S1674984716300726Higher-order ionospherePrecision orbit determinationPPPGeomagnetic model |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhimin Liu Yangyang Li Jinyun Guo Fei Li |
spellingShingle |
Zhimin Liu Yangyang Li Jinyun Guo Fei Li Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning Geodesy and Geodynamics Higher-order ionosphere Precision orbit determination PPP Geomagnetic model |
author_facet |
Zhimin Liu Yangyang Li Jinyun Guo Fei Li |
author_sort |
Zhimin Liu |
title |
Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning |
title_short |
Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning |
title_full |
Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning |
title_fullStr |
Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning |
title_full_unstemmed |
Influence of higher-order ionospheric delay correction on GPS precise orbit determination and precise positioning |
title_sort |
influence of higher-order ionospheric delay correction on gps precise orbit determination and precise positioning |
publisher |
KeAi Communications Co., Ltd. |
series |
Geodesy and Geodynamics |
issn |
1674-9847 |
publishDate |
2016-09-01 |
description |
At present, Global Navigation Satellite Systems (GNSS) users usually eliminate the influence of ionospheric delay of the first order items by dual-frequency ionosphere-free combination. But there is still residual ionospheric delay error of higher order term. The influence of the higher-order ionospheric corrections on both GPS precision orbit determination and static Precise Point Positioning (PPP) are studied in this paper. The influence of higher-order corrections on GPS precision orbit determination, GPS observations and static PPP are analyzed by neglecting or considering the higher-order ionospheric corrections by using a globally distributed network which is composed of International GNSS Service (IGS) tracking stations. Numerical experimental results show that, the root mean square (RMS) in three dimensions of satellite orbit is 36.6 mm–35.5 mm. The maximal second-order ionospheric correction is 9 cm, and the maximal third-order ionospheric correction is 1 cm. Higher-order corrections are influenced by latitude and station distribution. PPP is within 3 mm in the directions of east and up. Furthermore, the impact is mainly visible in the direction of north, showing a southward migration trend, especially at the lower latitudes where the influence value is likely to be bigger than 3 mm. |
topic |
Higher-order ionosphere Precision orbit determination PPP Geomagnetic model |
url |
http://www.sciencedirect.com/science/article/pii/S1674984716300726 |
work_keys_str_mv |
AT zhiminliu influenceofhigherorderionosphericdelaycorrectionongpspreciseorbitdeterminationandprecisepositioning AT yangyangli influenceofhigherorderionosphericdelaycorrectionongpspreciseorbitdeterminationandprecisepositioning AT jinyunguo influenceofhigherorderionosphericdelaycorrectionongpspreciseorbitdeterminationandprecisepositioning AT feili influenceofhigherorderionosphericdelaycorrectionongpspreciseorbitdeterminationandprecisepositioning |
_version_ |
1724313558478487552 |