Zobrazeno 1 - 10
of 165
pro vyhledávání: '"relativistic positioning systems"'
Publikováno v:
General Relativity and Gravitation, Vol. 52, No. 2, 03.02.2020
We discuss the design for a discrete, immediate, simple relativistic positioning system (rPS) which is potentially able of self-positioning (up to isometries) and operating without calibration or ground control assistance. The design is discussed in
Externí odkaz:
http://arxiv.org/abs/1805.04741
Autor:
Alfonso Màrius Josep Fullana i, Milán Diego Pascual Sáez, Córdoba Josep Vicent Arnau i, Colmenero Neus Puchades
Publikováno v:
Applied Mathematics and Nonlinear Sciences, Vol 3, Iss 1, Pp 161-166 (2018)
We make some considerations about Relativistic Positioning Systems (RPS). Four satellites are needed to position a user. First of all we define the main concepts. Errors should be taken into account. Errors depend on the Jacobian transformation matri
Externí odkaz:
https://doaj.org/article/cfa9dbb63ede4de8984615dbca75cc54
Autor:
Coll, Bartolomé
Relativistic positioning systems are interesting {\em technical objects} for applications around the Earth and in the Solar system. But above all else, they are basic {\em scientific objects} allowing developing relativity from its own concepts. Some
Externí odkaz:
http://arxiv.org/abs/1302.5782
Autor:
Puchades, Neus, Sáez, Diego
Publikováno v:
ACTA FUTURA (2013)
The motion of satellite constellations similar to GPS and Galileo is numerically simulated and, then, the region where bifurcation (double positioning) occurs is appropriately represented. In the cases of double positioning, the true location may be
Externí odkaz:
http://arxiv.org/abs/1404.1000
Autor:
Rubin, Jacques L.
Relativistic positioning systems provide tensors represented in $\{\ell\ell\ell\ell\}$-frames ($\ell$ for light) dual to systems of emission coordinates. We show that any Lorentzian metric field given in such a frame is isometrically equivalent to a
Externí odkaz:
http://arxiv.org/abs/1304.5699
A {\em relativistic positioning system} consists in a set of four clocks broadcasting their respective proper time by means of light signals. Among them, the more important ones are the {\em auto-located positioning systems,} in which every clock bro
Externí odkaz:
http://arxiv.org/abs/0906.0660
Autor:
Coll, Bartolomé, Pozo, José María
Publikováno v:
Class.Quant.Grav.23:7395-7416,2006
This paper introduces some general properties of the gravitational metric and the natural basis of vectors and covectors in 4-dimensional emission coordinates. Emission coordinates are a class of space-time coordinates defined and generated by 4 emit
Externí odkaz:
http://arxiv.org/abs/gr-qc/0606044
Publikováno v:
Phys.Rev. D73 (2006) 084017
A relativistic positioning system is a physical realization of a coordinate system consisting in four clocks in arbitrary motion broadcasting their proper times. The basic elements of the relativistic positioning systems are presented in the two-dime
Externí odkaz:
http://arxiv.org/abs/gr-qc/0602015
Publikováno v:
Class.Quant.Grav.25:205011,2008
A 4-dimensional relativistic positioning system for a general spacetime is constructed by using the so called "emission coordinates". The results apply in a small region around the world line of an accelerated observer carrying a Fermi triad, as desc
Externí odkaz:
http://arxiv.org/abs/0809.0998
Autor:
Coll, Bartolomé
The theory of relativistic {\em location systems} is sketched. An interesting class of these systems is that of relativistic {\em positioning systems,} which consists in sets of four clocks broadcasting their proper time. Among them, the more importa
Externí odkaz:
http://arxiv.org/abs/gr-qc/0601110