Results 11 to 20 of about 3,797 (186)

The Central European GNSS Research Network (CEGRN) dataset [PDF]

open access: yesData in Brief, 2019
The Central European GNSS Research Network (CEGRN) collects GNSS data since 1994 from contributors which today include 42 Institutions in 33 Countries.
J. Zurutuza   +9 more
doaj   +2 more sources

Closed-form and iterative weighted least squares solutions of Helmert transformation parameters

open access: yesJournal of Geodetic Science, 2013
The Helmert transformation is the most common transformation between different geodetic systems. In 2-D, in contrast to higher dimensions, it is a well-known procedure how to determine the 4 transformation parameters in a closed form.
Sjöberg L.E.
doaj   +2 more sources

Evaluation of the GPS Precise Orbit and Clock Corrections from MADOCA Real-Time Products [PDF]

open access: yesSensors, 2019
The Japanese Quasi-Zenith Satellite System (QZSS) is a regional navigation satellite system covering the entire Asia-Oceania region. Except for the standard satellite navigation signals, QZSS satellites also broadcast L6E augmentation signals with real ...
Shaocheng Zhang   +3 more
doaj   +2 more sources

Analiza deformacij s helmertovo transformacijo : Deformation analysis with the helmert transformation [PDF]

open access: yesGeodetski Vestnik, 2012
In the second half of the previous century, analysis of deformations became a highly interesting subject of research and practical application in industry.
Krešimir Frankić ABSTRACT
doaj   +2 more sources

The Effect of Suvorexant on Fear Extinction Recall: A Double-Blind Randomised Controlled Pilot Trial in Healthy Individuals. [PDF]

open access: yesJ Sleep Res
ABSTRACT Post‐traumatic stress disorder (PTSD) is a highly debilitating condition that develops after trauma exposure. Dysregulation in extinction memory consolidation (i.e., the ability to remember that trauma‐related stimuli no longer signal danger) is proposed to underlie PTSD development. Disruptions in rapid eye movement (REM) sleep are thought to
Schenker MT   +10 more
europepmc   +2 more sources

Determination of Helmert transformation parameters for continuous GNSS networks: a case study of the Géoazur GNSS network

open access: yesGeo-spatial Information Science, 2023
In this paper, we propose an approach to determine seven parameters of the Helmert transformation by transforming the coordinates of a continuous GNSS network from the World Geodetic System 1984 (WGS84) to the International Terrestrial Reference Frame ...
Dinh Trong Tran   +3 more
doaj   +1 more source

Conformal and empirical transformation between the PL-ETRF89 and PL-ETRF2000 reference frames using the new adjustment of the former Polish I class triangulation network [PDF]

open access: yesGeodesy and Cartography, 2021
The European reference frame ETRF2000 was introduced on the territory of Poland on 1 July 2013, named PL-ETRF2000, as a result of the appropriate measurement campaign 2008-2011.
Roman Kadaj
doaj   +1 more source

Deformation analysis based on GNSS measurements in Tashkent region [PDF]

open access: yesE3S Web of Conferences, 2021
This paper presents the results of the GNSS geodetic network deformation analysis in the Tashkent region, as an example of an urban area, where obtaining reliable information for assessing hazard risk is of great importance.
Fazilova Dilbarkhon Sh.   +1 more
doaj   +1 more source

DEVELOPMENT OF A TIME-DEPENDENT 3-PARAMETER HELMERT DATUM TRANSFORMATION MODEL: A CASE STUDY FOR MALAYSIA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
This paper aims to develop a time-dependent 3-parameter Helmert datum transformation model for Malaysia as a proposed solution to the current non-geocentric issue of the Geocentric Datum of Malaysia 2000 (GDM2000).
J. Gill   +4 more
doaj   +1 more source

TRANSFORMATION METHODS FOR USING COMBINATION OF REMOTELY SENSED DATA AND CADASTRAL MAPS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In order to examine using cadastral maps as base maps for aerial orthophotos, two different 2D transformation methods were applied between various coordinate systems. Study area was chosen from Kagithane district in Istanbul.
Ş. Ö. Dönmez, A. Tunc
doaj   +1 more source

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