Ola Øvstedal
Ola Øvstedal
Section of Geomatics, Faculty of Science and Technology, Norwegian University of Life Sciences
Geverifieerd e-mailadres voor nmbu.no
Titel
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Jaar
Absolute positioning with single-frequency GPS receivers
O Øvstedal
GPS Solutions 5 (4), 33-44, 2002
1542002
Precise orbit determination and point positioning using GPS, Glonass, Galileo and BeiDou
J Tegedor, O Øvstedal, E Vigen
932014
An approach for instantaneous ambiguity resolution for medium-to long-range multiple reference station networks
G Hu, DA Abbey, N Castleden, WE Featherstone, C Earls, O Ovstedal, ...
GPS Solutions 9 (1), 1-11, 2005
572005
Contribution of Differential GPS and GLONASS Observations to Point Accuracies under Forest Canopies
RL Næsset, E., Bjerke E., Øvstedal O.
Photogrammetric Engineering & Remote Sensing 66 (4), 403-408, 2000
49*2000
First results from virtual reference station (VRS) and precise point positioning (PPP) GPS research at the western Australian Centre for Geodesy
N Castleden, GR Hu, DA Abbey, D Weihing, O Øvstedal, CJ Earls, ...
Journal of Global Positioning Systems 3 (1-2), 79-84, 2004
302004
Triple carrier precise point positioning (PPP) using GPS L5
J Tegedor, O Øvstedal
Survey review 46 (337), 288-297, 2014
272014
Surveying using GPS precise point positioning
O Ovstedal, NS Kjorsvik, JGO Gjevestad
Proc. Shaping the Change XXIII FIG Congress, 2006
192006
The effect of different tropospheric models on precise point positioning in kinematic mode
ABO Jensen, O Ovstedal
Survey Review 40 (308), 173-187, 2008
182008
Handling of the tropospheric delay in kinematic precise point positioning
NS Kjørsvik, JGO Gjevestad, O Øvstedal
Proceedings of the 19th International Technical Meeting of the Satellite …, 2006
182006
Estimation of Galileo uncalibrated hardware delays for ambiguity-fixed precise point positioning
J Tegedor, X Liu, K De Jong, M Goode, O Øvstedal, E Vigen
NAVIGATION, Journal of the Institute of Navigation 63 (2), 173-179, 2016
142016
Development of a regional ionosphere model for Norway
ABO Jensen, O Ovstedal, G Grinde
Proceedings of the 2008 National Technical Meeting of The Institute of …, 2008
142008
Real-time precise point positioning using BeiDou
J Tegedor, K de Jong, X Liu, E Vigen, O Øvstedal
IAG 150 Years, 665-671, 2015
82015
Kinematic precise point positioning during marginal satellite availability
NS Kjørsvik, O Øvstedal, JGO Gjevestad
Observing our changing earth, 691-699, 2009
82009
Single processed independent and trivial vectors in network analysis
O ∅vstedal
Journal of surveying engineering 126 (1), 18-25, 2000
72000
Bruk av NGO koordinater på håndholdte GPS mottakere
GH Strand, O Øvstedal
Kart og Plan 63, 19-27, 2003
62003
An empirical comparison between absolute satellite positioning methods and differential methods in a maritime environment
O Ovstedal, AE Ofstad, KT Haustveit, O Kristiansen
Proceedings of the 15th International Technical Meeting of the Satellite …, 2002
62002
Multi-constellation precise point positioning including GPS, GLONASS, Galileo and BeiDou
J Tegedor, T Melgard, O Øvstedal, E Vigen
GNSS PPP workshop 11, 2013
42013
Using the virtual reference stations (VRS) concept for long-range airborne GPS kinematic positioning
GR Hu, O Ovstedal, WE Featherstone, N Castleden, CJ Earls, DA Abbey
Survey Review 40 (307), 83-91, 2008
42008
The contribution of GLONASS and Galileo to kinematic GPS precise point positioning
JGO Gjevestad, O Ovstedal, NS Kjorsvik
Proceedings of the 20th International Technical Meeting of the Satellite …, 2007
42007
Recent results of long-range airborne kinematic GPS positioning research at the Western Australian Center for Geodesy
N Castleden, GR Hu, DA Abbey, D Weihing, O Ovstedal, CJ Earls, ...
The 2004 International Symposium on GNSS/GPS, Sydney, Australia, 6-8, 2004
42004
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Artikelen 1–20