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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Advances in Space Research

ISSN

0273-1177

e-ISSN

1879-1948

Svazek periodika

59

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

2466-2472

Kód UT WoS článku

000401048900002

EID výsledku v databázi Scopus

2-s2.0-85017552912