Results 11 to 20 of about 2,276,164 (335)

Impact of the terrestrial reference frame on the determination of the celestial reference frame [PDF]

open access: yesGeodesy and Geodynamics, 2019
Currently three up-to-date Terrestrial Reference Frames (TRF) are available, the ITRF2014 from IGN, the DTRF2014 from DGFI-TUM, and JTRF2014 from JPL. All use the identical input data of space-geodetic station positions and Earth orientation parameters ...
Maria Karbon   +2 more
doaj   +5 more sources

Object representation in a gravitational reference frame [PDF]

open access: yeseLife, 2023
When your head tilts laterally, as in sports, reaching, and resting, your eyes counterrotate less than 20%, and thus eye images rotate, over a total range of about 180°. Yet, the world appears stable and vision remains normal.
Alexandriya MX Emonds   +3 more
doaj   +2 more sources

Microarcsecond instability of the celestial reference frame [PDF]

open access: bronze, 1998
The fluctuation of the angular positions of reference extragalactic radio and optical sources under the influence of the irregular gravitational field of visible Galactic stars is considered.
M. V. Sazhin   +3 more
openalex   +5 more sources

The Absolute Frame of Reference [PDF]

open access: yesSSRN Electronic Journal, 2020
The manuscript found the formula to calculate the real velocity of the earth and the maximum velocity in the universe, the values of the quantities after calculation as follows:V_earth = 1.852819296∗10^8 m/s.C_max = 4.8507438399∗10^8 m/s.In order to calculate the above results, the manuscript has built a reference frame transformation suitable for ...
Khac Son, Ninh
openaire   +5 more sources

Dynamics of a quantum reference frame [PDF]

open access: yesNew Journal of Physics, 2007
We analyze a quantum mechanical gyroscope which is modeled as a large spin and used as a reference against which to measure the angular momenta of spin-1/2 particles. These measurements induce a back-action on the reference which is the central focus of our study.
Poulin, David, Yard, Jon
openaire   +8 more sources

Relative subsystems and quantum reference frame transformations [PDF]

open access: yesCommunications Physics
Recently there has been much effort in developing a quantum generalisation of reference frame transformations. Despite important progress, a complete understanding of their principles is still lacking.
Esteban Castro-Ruiz, Ognyan Oreshkov
doaj   +2 more sources

Historical development of SIRGAS

open access: yesJournal of Geodetic Science, 2022
The Geodetic Reference System for the Americas (Sistema de Referencia Geodésico para las Américas, SIRGAS) was initiated in 1993 for South America at an international conference organised by the International Association of Geodesy (IAG), the Pan ...
Drewes Hermann
doaj   +1 more source

IMPROVED REFERENCE KEY FRAME ALGORITHM [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
The autonomous vehicles, such as wheeled robots and drones, efficiently contribute in the search and rescue operations. Specially for indoor environments, these autonomous vehicles rely on simultaneous localization and mapping approach (SLAM) to ...
H. A. Mohamed   +4 more
doaj   +1 more source

The Impact of Vision Loss on Allocentric Spatial Coding

open access: yesFrontiers in Neuroscience, 2020
Several works have demonstrated that visual experience plays a critical role in the development of allocentric spatial coding. Indeed, while children with a typical development start to code space by relying on allocentric landmarks from the first year ...
Chiara Martolini   +5 more
doaj   +1 more source

Tight Reference Frame–Independent Quantum Teleportation [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2017
We give a tight scheme for teleporting a quantum state between two parties whose reference frames are misaligned by an action of a finite symmetry group.
Dominic Verdon, Jamie Vicary
doaj   +1 more source

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