Visual-inertial odometry using high flying altitude drone datasets

A George, N Koivumäki, T Hakala, J Suomalainen… - Drones, 2023 - mdpi.com
Positioning of unoccupied aerial systems (UAS, drones) is predominantly based on Global
Navigation Satellite Systems (GNSS). Due to potential signal disruptions, redundant …

Modernization of the Estonian national GNSS reference station network

J Metsar, K Kollo, A Ellmann - Geodesy and cartography, 2018 - ijspm.vgtu.lt
Abstract The first GNSS (Global Navigation Satellite System) CORS (Continuously Operating
Reference Station) in Estonia became operational in 1996. Starting from 2008 four Estonian …

Treatment of tide gauge time series and marine GNSS measurements for vertical land motion with relevance to the implementation of the Baltic Sea Chart Datum 2000

S Varbla, J Ågren, A Ellmann, M Poutanen - Remote Sensing, 2022 - mdpi.com
Tide gauge (TG) time series and GNSS measurements have become standard datasets for
various scientific and practical applications. However, the TG and geodetic networks in the …

Vertical velocities in Finland from permanent GPS networks and from repeated precise levelling

J Mäkinen, H Koivula, M Poutanen, V Saaranen - Journal of Geodynamics, 2003 - Elsevier
Postglacial rebound is a long-studied phenomenon in Fennoscandia, and the general
features of contemporary vertical motion (0–8 mm/year relative to mean sea level) are well …

Optimising the use of National CORS data in the context of Thailand: policy outlooks from a data ecosystem perspective

W Supinajaroen - A+ BE| Architecture and the Built …, 2022 - journals.open.tudelft.nl
This dissertation concerns the optimisation of the use of spatial data from the National
Continuously Operating Reference Stations (NCORS) in Thailand. Thailand, among many …

Approach for creating useful, gamified and social map applications utilising privacy-preserving crowdsourcing

M Rönneberg - 2022 - aaltodoc.aalto.fi
The production and use of geographic information have become easier and more social.
The interactivity of maps has fundamentally changed, not only because the touch-based …

Analysis of Visual-Inertial Odometry Algorithms for Outdoor Drone Applications

A George - 2021 - aaltodoc.aalto.fi
Visual-inertial odometry (VIO) and visual-inertial simultaneous localisation and map**
(VISLAM) enables mobile robots to localise without relying on global navigation satellite …

Hybridization of GNSS and on-board sensors for validating the aurora ecosystem

M Kirkko-Jaakkola, S Marila, S Thombre… - Proceedings of the 32nd …, 2019 - ion.org
This paper presents a hybrid navigation algorithm based on loose coupling of the on-board
speedometer and inertial sensors of a land vehicle with a GNSS receiver. An Extended …

[PDF][PDF] Tutkijan muistelmia

R Kuittinen - 2023 - helda.helsinki.fi
Kuulun vuonna 1946 syntyneeseen suureen ikäluokkaan, joka jälleen kerran, nyt
eläkeiässä, aiheuttaa päänvaivaa maamme päättäjille. Kävin kansa-ja oppikoulun 1950-ja …

[PDF][PDF] Upgrading the Metsähovi Geodetic Research Station

M Poutanen, M Bilker-Koivula, J Eskelinen… - … on Reference Frames …, 2022 - library.oapen.org
Abstract Metsähovi Geodetic Research Station (MGRS) of the National Land Survey of
Finland, has undergone a major upgrade. The first observations at MGRS were started in …