Results 291 to 300 of about 261,794 (327)

A review of algebraic constraints in terrestrial reference frame datum definition

Journal of Geodesy, 2001
Station coordinates are combined with velocities estimated by space geodesy techniques to produce the International Terrestrial Reference System. The input is sets of coordinates and velocities calculated by International Earth Rotation Service analysis centers using space geodesy techniques.
Sillard, P., Boucher, C.
openaire   +2 more sources

Assessment of BDS-3 terrestrial reference frame realized by broadcast ephemeris: comparison with GPS/Galileo

GPS Solutions, 2021
Guo Chen, N. Wei, Min Li, Qile Zhao, Yujiao Niu, Hongliang Cai, Yinan Meng   +6 more
semanticscholar   +1 more source

Combination of GNSS and SLR measurements : contribution to the realization of the terrestrial reference frame

, 2016
La mise en oeuvre exacte et précise du repère international de référence terrestre (ITRF) est une exigence fondamentale pour le développement des Sciences du Système Terre.
S. Bruni
semanticscholar   +1 more source

Transformations Between Celestial and Terrestrial Reference Frames

1989
The rotation of a Cartesian frame of reference due to general (lunisolar and planetary) precession and astronomic nutation between the epochs T0 and T is given by the matrix formula $${{\vec{e}}_{T}} = N{\mkern 1mu} P{{\vec{e}}_{M}}$$ (1) where \({{\vec{e}}_{M}}\) and \({{\vec{e}}_{T}}\) denote unit vectors in the reference frame at the epoch
openaire   +1 more source

Consistent Adjustment of Combined Terrestrial and Celestial Reference Frames

2013
Today, the realization of the International Terrestrial Reference System (ITRS) and the International Celestial Reference System (ICRS) is performed separately. Consequently, the two realizations are not fully consistent and show differences in the network geometry and the realized scale of the terrestrial reference frame (TRF) and in the ...
M. Seitz, P. Steigenberger, T. Artz
openaire   +1 more source

Nationwide Adjustment of Unified Geodetic Control Points for the Modernization of South Korea’s Spatial Reference Frame

Applied Sciences
This study presents a nationwide geodetic network adjustment of approximately 5560 unified control points (UCPs) established across South Korea between 2008 and 2021. Addressing the limitations of conventional regional adjustment strategies, the proposed
Seung-Jun Lee, Hong-Sik Yun
semanticscholar   +1 more source

Terrestrial reference frame of Serbia and its temporal rate

2013
National GPS permanent network of Serbia - Aktivna Geodetska Referentna Osnova Srbije (AGROS) was established in the end of 2005. referring to the ITRF96, where the official geodetic reference system of Serbia was Bessel ellipsoid and Gauss-Krüger projec-tion.
Naod, Sofija, Grekulović, Sanja, Vasilić, Violeta, Odalović, Oleg, Blagojević, Dragan   +4 more
openaire   +1 more source

Upgraded modelling for the determination of centre of mass corrections of geodetic SLR satellites: impact on key parameters of the terrestrial reference frame

Journal of Geodesy, 2019
José Rodríguez, G. Appleby, T. Otsubo
semanticscholar   +1 more source

Primary Exploration on Approaches to Establish BeiDou Terrestrial Reference Frame

Lecture Notes in Electrical Engineering, 2019
Liqian Zhao, Xiaogong Hu, Shanshi Zhou, Chengpan Tang, Yufei Yang   +4 more
semanticscholar   +1 more source

Impacts of the LARES and LARES-2 Satellite Missions on the SLR Terrestrial Reference Frame

IX Hotine-Marussi Symposium on Mathematical Geodesy, 2019
R. König, S. Glaser, I. Ciufolini, A. Paolozzi   +3 more
semanticscholar   +1 more source