Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Sonja Lahtinen"'
Publikováno v:
Sensors, Vol 21, Iss 5, p 1695 (2021)
The tenth launch (L10) of the European Global Navigation Satellite System Galileo filled in all orbital slots in the constellation. The launch carried four Galileo satellites and took place in July 2018. The satellites were declared operational in Fe
Externí odkaz:
https://doaj.org/article/bb374edaf3ab443f823966f13adbf28b
Autor:
Constantin-Octavian Andrei, Sonja Lahtinen, Maaria Nordman, Jyri Näränen, Hannu Koivula, Markku Poutanen, Juha Hyyppä
Publikováno v:
Remote Sensing, Vol 10, Iss 12, p 1937 (2018)
Continuous Global Positioning System (GPS) observations have been logged at the Finnish Antarctic research station (Aboa) since February 2003. The station is located in Dronning Maud Land, East Antarctica. Almost 5000 daily observation files have bee
Externí odkaz:
https://doaj.org/article/f80744172df249008e68ccc58695c3fd
Publikováno v:
Geodesy and Cartography, Vol 41, Iss 4 (2015)
Precise levelling is known for its accuracy and reliability in height determination, but the process itself is slow, laborious and expensive. We have started a project to study methods for height determination that could decrease the creation time of
Externí odkaz:
https://doaj.org/article/e003f02cd5414cabb068a1e561ea4c10
Autor:
Sonja Lahtinen, Elina Närvänen
Publikováno v:
Corporate Communications: An International Journal. 25:447-461
PurposeThe purpose of this research is to explore how consumers co-create sustainable corporate brands (SCBs) by framing brands with a newly adopted sustainability orientation.Design/methodology/approachThe qualitative data were generated from four f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8cc25c3ad852fb31a62ed68573937a4b
https://doi.org/10.1108/ccij-11-2019-0121
https://doi.org/10.1108/ccij-11-2019-0121
Publikováno v:
Journal of Geodetic Science, Vol 8, Iss 1, Pp 136-144 (2018)
We tested the accuracy and usability of a sparse GNSS reference station network for network RTK (NRTK) using the Finnish permanent GNSS network FinnRef. We modified the configuration of the FinnRef network stations used in NRTK computation. This allo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6abc8c081b2fae29070986b440222f84
https://doaj.org/article/41515bca77f641f08879deb0b58f1ba5
https://doaj.org/article/41515bca77f641f08879deb0b58f1ba5
Publikováno v:
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 1695, p 1695 (2021)
Sensors
Volume 21
Issue 5
Sensors, Vol 21, Iss 1695, p 1695 (2021)
Sensors
Volume 21
Issue 5
The tenth launch (L10) of the European Global Navigation Satellite System Galileo filled in all orbital slots in the constellation. The launch carried four Galileo satellites and took place in July 2018. The satellites were declared operational in Fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f3fbead82e822d1d710a8f2f457e6ce
http://europepmc.org/articles/PMC7957541
http://europepmc.org/articles/PMC7957541
Publisher Copyright: © 2021 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. Copyright: Copyright 2021 Elsevier B.V., All rights reserved. Traditionally, geoid models have been validated using GNSS-levelling benchma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e97a3c491cfc9dd2d623e1e969c736b1
http://hdl.handle.net/10138/328190
http://hdl.handle.net/10138/328190
Funding Information: We thank all the NKG GNSS AC operators for the processing and time series analysis efforts. We thank Danish Agency for Data Supply and Efficiency for hosting the data server for the needs of the project. The maps of this paper we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc8578c9ee6fd2d44248ff8121f5b292
http://hdl.handle.net/10138/336191
http://hdl.handle.net/10138/336191
Autor:
Hannu Koivula, Pasi Häkli, Jaakko Kuokkanen, Sonja Lahtinen, Mirjam Bilker-Koivula, Maaria Nordman
Publikováno v:
Marine Geodesy. 41:457-476
We studied geoid validation using ship-borne global navigation satellite systems (GNSS) on the Baltic Sea. We obtained geoid heights by combining GNSS–inertial measurement unit observations, tide gauge data, and a physical sea model. We used two di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::12b0027511f5588e5cfb9007d8b102aa
https://doi.org/10.1080/01490419.2018.1481160
https://doi.org/10.1080/01490419.2018.1481160
Publikováno v:
Journal of Geodesy. 93:1-18
GNSS antennas have no fixed electrical reference point. The variation of the phase centre is modelled and tabulated in antenna calibration tables, which include the offset vector (PCO) and phase centre variation (PCV) for each frequency according to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a1c9dc49a08bd0966d3512aa8b40663
https://doi.org/10.1007/s00190-018-1134-2
https://doi.org/10.1007/s00190-018-1134-2