Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Sylvain Loyer"'
Publikováno v:
Earth, Planets and Space, Vol 71, Iss 1, Pp 1-6 (2019)
Abstract On February 11, 2019, four additional Galileo satellites were put into service, approaching the completion of the European global navigation satellite system constellation. For the first time, the performance of Galileo system in terms of hi
Externí odkaz:
https://doaj.org/article/287b67e33a364a8a98ce252d7b284bf6
Publikováno v:
Remote Sensing, Vol 13, Iss 22, p 4523 (2021)
Thanks to the increasing number of permanent GNSS stations in Europe and their long records, we computed position solutions for more than 1000 stations over the last two decades using the REPRO3 orbit and clock products from the IGS CNES-CLS (GRGS) A
Externí odkaz:
https://doaj.org/article/49f6642615564f3f8ff70e1c7c55b65d
Publikováno v:
Remote Sensing, Vol 11, Iss 21, p 2477 (2019)
Precise point positioning (PPP) has been used for decades not only for general positioning needs but also for geodetic and other scientific applications. The CNES-CLS Analysis Centre (AC) of the International GNSS Service (IGS) is performing PPP with
Externí odkaz:
https://doaj.org/article/20689fcf01a5457f826403ef745eee3c
Autor:
Sylvain Loyer, Adrien Mezerette, Eléonore Saquet, Adrian Baños-Garcia, Alvaro Santamaria Gomez, Flavien Mercier, Felix Perosanz
We present in this contribution the main aspects of efforts done at the CNES/CLS Analysis Center in 2022-2023. We recall the main changes associated with the adoption of the IG20/IGS20.atx standards relying on the recently released International Terr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b32283b7783614a22e709a6fee4ef9ac
https://doi.org/10.5194/egusphere-egu23-5308
https://doi.org/10.5194/egusphere-egu23-5308
Autor:
Arnaud Pollet, David Coulot, Richard Biancale, Félix Pérosanz, Sylvain Loyer, Jean-Charles Marty, Susanne Glaser, Vladimir Schott-Guilmault, Jean-Michel Lemoine, Flavien Mercier, Samuel Nahmani, Mioara Mandea
Publikováno v:
Journal of Geodesy. 97
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3869e22281d5aad4bf383c38668fe57
https://doi.org/10.1007/s00190-023-01730-4
https://doi.org/10.1007/s00190-023-01730-4
Publikováno v:
Advances in Space Research. 68:2441-2452
The orientation of GNSS satellites in space is a key quantity in GNSS data processing. It is required to correctly apply several force models and observation corrections. Incorrect or insufficient modeling of satellite attitude can lead to inconsiste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a5b392fe4f18b11ba8b78963a5c8705a
https://doi.org/10.1016/j.asr.2021.04.049
https://doi.org/10.1016/j.asr.2021.04.049
Autor:
Sylvain Loyer, Radosław Zajdel, Georgia Katsigianni, Felix Perosanz, Krzysztof Sośnica, Flavien Mercier
Publikováno v:
Advances in Space Research. 63:2952-2963
Ambiguity fixing to integer numbers of the phase measurements has been proven to ameliorate the accuracy of GNSS data processing. Until now there are two strategies to achieve ambiguity resolution; by forming double differences and by using undiffere
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e6848c4e6312cc0af309889634a97fb
https://doi.org/10.1016/j.asr.2018.08.035
https://doi.org/10.1016/j.asr.2018.08.035
Global navigation satellite system (GNSS) constellations such as GPS, GLONASS, Galileo, and BeiDou and the Japanese regional system QZSS apply various satellite attitude modes during eclipse season, which is the period when the Sun is close to the or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c101b28acb249fa95df60b6addd69d9d
https://doi.org/10.5194/egusphere-egu21-7825
https://doi.org/10.5194/egusphere-egu21-7825
Autor:
Georgia Katsigianni, Felix Perosanz, Sylvain Loyer, Alvaro Santamaria, Mini Gupta, Flavien Mercier
The Precise Point Positioning (PPP) technique using the GPS has become a popular alternative to the differential approach. Thanks to the MGEX pilot project of the IGS, precise orbit and clock products from other constellations like Galileo, Beidou, G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd691cc8a5ce257b4dd891b925292d6e
https://doi.org/10.5194/egusphere-egu2020-7645
https://doi.org/10.5194/egusphere-egu2020-7645
Autor:
Stefan Schaer, Tim Springer, Sylvain Loyer, Sebastian Strasser, Simon Banville, Jianghui Geng
Publikováno v:
Journal of Geodesy. 94
Techniques enabling precise point positioning with ambiguity resolution (PPP-AR) were developed over a decade ago. Several analysis centers of the International GNSS Service (IGS) have implemented such strategies into their software packages and are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9dca29151c4f2d24dc58b14cef8bfece
https://doi.org/10.1007/s00190-019-01335-w
https://doi.org/10.1007/s00190-019-01335-w