Identification and calibration of one-way delays in satellite laser ranging systems

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00308233" target="_blank" >RIV/68407700:21340/17:00308233 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.asr.2017.02.027" target="_blank" >http://dx.doi.org/10.1016/j.asr.2017.02.027</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.asr.2017.02.027" target="_blank" >10.1016/j.asr.2017.02.027</a>

Result language

angličtina

Original language name

Identification and calibration of one-way delays in satellite laser ranging systems

Original language description

We are reporting on identification and calibration of one–way delays in satellite laser ranging systems. Satellite Laser Ranging (SLR) is a standard technique to measure the distance of satellites as a function of time with millimeter precision and a few millimeters accuracy. For one–way laser ranging, laser time transfer ground to space and for bi– and multi–static laser ranging to space objects identification and measurement of system delays related separately to transmitting and receiving parts of the system are needed. The epochs of transmission and reception of optical signals have to be referred to the coordinated time scale with the accuracy reaching one nanosecond level or better for one–way ranging and space debris multi–static ranging. For transponder ranging and laser time transfer an even higher accuracy of 50 ps or better is needed. These accuracy requirements are by several orders of magnitude higher in comparison to standard SLR applications. A new procedure of calibration of one–way delays related to the SLR systems has been developed and tested. The necessary hardware components needed for calibration measurements were designed and developed in a form of a Calibration Device. It consists of a photon counting detector, an epoch timing device and a dedicated signal cable. The signal propagation delays of these components were determined with an accuracy of better than 20 ps. The signal propagation delay stability of the Calibration Device is on a level of units of picoseconds over days of operation. The Calibration Device and calibration procedure were tested in real measurements at the SLR site in Graz, Austria. The time needed to complete a calibration of one–way delays of the SLR system is less than two days. The one–way system delays were determined with the accuracy better than 50 ps. The measurement principle, Calibration Device and the first results are presented.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advances in Space Research

ISSN

0273-1177

e-ISSN

1879-1948

Volume of the periodical

59

Issue of the periodical within the volume

10

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

2466-2472

UT code for WoS article

000401048900002

EID of the result in the Scopus database

2-s2.0-85017552912