Pasi Häkli
Pasi Häkli
Research scientist, Finnish Geospatial Research Institute (FGI)
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Practical test on accuracy and usability of virtual reference station method in Finland
P Häkli
FIG Working Week, 22-27, 2004
The upgraded PTB 600 m baseline: a high-accuracy reference for the calibration and the development of long distance measurement devices
F Pollinger, T Meyer, J Beyer, NR Doloca, W Schellin, W Niemeier, ...
Measurement Science and Technology 23 (9), 094018, 2012
The NKG2008 GPS campaign–final transformation results and a new common Nordic reference frame
P Häkli, M Lidberg, L Jivall, T Nørbech, O Tangen, M Weber, P Pihlak, ...
Journal of Geodetic Science 6 (1), 2016
Current research and development at the Nummela Standard Baseline. Conference proceedings
J Jokela, P Häkli
Shaping the Change, XXIII FIG Congress, Munich, Germany, 8-13 October, 2006., 2006
First results of the Nordic and Baltic GNSS Analysis Centre
S Lahtinen, H Pasi, L Jivall, C Kempe, K Kollo, K Kosenko, P Pihlak, ...
Journal of Geodetic Science 8 (1), 34-42, 2018
Interference measurements of the Nummela Standard Baseline in 2005 and 2007
J Jokela, P Häkli
Finnish Geodetic Institute, 2010
Finnish permanent GNSS network: From dual-frequency GPS to multi-satellite GNSS
H Koivula, J Kuokkanen, S Marila, T Tenhunen, P Häkli, U Kallio, ...
2012 Ubiquitous Positioning, Indoor Navigation, and Location Based Service …, 2012
Calibration of the BEV geodetic baseline
J Jokela, P Häkli, R Kugler, H Skorpil, M Matus, M Poutanen
FIG Congress 2010, 2873-87, 2010
On traceability of long distances
J Jokela, P Häkli, J Ahola, A Buga, R Putrimas
Proceedings of XIX IMEKO World Congress, Fundamental and Applied Metrology, 6-11, 2009
Suomen geodeettiset koordinaatistot ja niiden väliset muunnokset
P Häkli, J Puupponen, H Koivula, M Poutanen
Geodeettinen laitos, 2009
Densification of the ITRF2014 position and velocity solution in the Nordic and Baltic countries
S Lahtinen, L Jivall, P Häkli, T Kall, K Kollo, K Kosenko, K Galinauskas, ...
GPS solutions 23, 1-13, 2019
Geoid Validation on the Baltic Sea Using Ship-borne GNSS Data
M Nordman, J Kuokkanen, M Bilker-Koivula, H Koivula, P Häkli, ...
Marine Geodesy 41 (5), 457-476, 2018
Future of National Reference Frames–from static to kinematic?
M Poutanen, P Häkli
Geodesy and Cartography 67 (1), 117–129, 2018
GPS metrology: bringing traceable scale to a local crustal deformation GPS network
H Koivula, P Häkli, J Jokela, A Buga, R Putrimas
Geodesy for Planet Earth: Proceedings of the 2009 IAG Symposium, Buenos …, 2012
Report from the project NKG GNSS AC
L Jivall, T Kempe, C Lilje, S Nyberg, P Häkli, K Kollo, P Pihlak, M Weber, ...
Proceedings of the NKG General Assembly 2014, Göteborg, Sweden, 1-4 …, 2016
Processing of the NKG 2008 campaign
L Jivall, P Häkli, P Pihlak, O Tangen
Proceedings of the 16th General Assembly of the Nordic Geodetic Commission …, 2013
New Horizontal Intraplate Velocity Model for Nordic and Baltic Countries
P Häkli, M Lidberg, L Jivall, H Steffen, H Kierulf, J Ågren, O Vestøl, ...
FIG Working Week 2019, Hanoi, Vietnam, 22-26 April, 2019, 2019
Validating Geoid Models with Marine GNSS Measurements, Sea Surface Models, and Additional Gravity Observations in the Gulf of Finland
T Saari, M Bilker-Koivula, H Koivula, M Nordman, P Häkli, S Lahtinen
Marine Geodesy 44 (3), 196-214, 2021
Quality of Virtual Data Generated from the GNSS Reference Station Network
P Häkli
Proc. Of the XXIII FIG Congress, Germany, Munich, October, 8-13, 2006
Virtuaali-RTK (VRS) tutkimus
P Häkli, H Koivula
Geodeettinen laitos, 2004
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