Co-location of space geodetics techniques in Space and on the ground

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F13%3A00214250" target="_blank" >RIV/68407700:21340/13:00214250 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Co-location of space geodetics techniques in Space and on the ground

Popis výsledku v původním jazyce

The most demanding goal of the GGOS initiative is the definition of station positions to an accuracy of 1mm and the corresponding velocities to 0.1mm/year. The main remaining sources of error are caused by systematics, leading to intra- and inter- technique biases. To improve the accuracy of the geodetic techniques, new concepts for monitoring and controlling local ties and biases have to be implemented. We are developing a symmetric two-way measurement technique to identify unaccounted system delays within and between the instrumentation of the Geodetic Observatory Wettzell. Another activity is the mapping of GNSS satellites into the frame of the quasars using VLBI (Very Long Baseline Interferometry) telescope, in geodetic mode. This corresponds to acollocation of geodetic techniques in space. The receiver of the Wettzell 20m antenna has been modified to measure the GNSS L1 signal without changing the local ties. Preliminary experiments have been executed already.

Název v anglickém jazyce

Co-location of space geodetics techniques in Space and on the ground

Popis výsledku anglicky

The most demanding goal of the GGOS initiative is the definition of station positions to an accuracy of 1mm and the corresponding velocities to 0.1mm/year. The main remaining sources of error are caused by systematics, leading to intra- and inter- technique biases. To improve the accuracy of the geodetic techniques, new concepts for monitoring and controlling local ties and biases have to be implemented. We are developing a symmetric two-way measurement technique to identify unaccounted system delays within and between the instrumentation of the Geodetic Observatory Wettzell. Another activity is the mapping of GNSS satellites into the frame of the quasars using VLBI (Very Long Baseline Interferometry) telescope, in geodetic mode. This corresponds to acollocation of geodetic techniques in space. The receiver of the Wettzell 20m antenna has been modified to measure the GNSS L1 signal without changing the local ties. Preliminary experiments have been executed already.

Druh

O - Ostatní výsledky

CEP obor

JV - Kosmické technologie

OECD FORD obor

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Projekt

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Návaznosti

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Rok uplatnění

2013

Kód důvěrnosti údajů

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