The impact of errors in predicted GPS orbits on zenith troposphere delay estimation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025615%3A_____%2F10%3A%230001792" target="_blank" >RIV/00025615:_____/10:#0001792 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.springerlink.com/content/03j481297727h166/" target="_blank" >http://www.springerlink.com/content/03j481297727h166/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10291-009-0138-z" target="_blank" >10.1007/s10291-009-0138-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The impact of errors in predicted GPS orbits on zenith troposphere delay estimation

Popis výsledku v původním jazyce

The impact of precise GPS ephemeris errors on estimated zenith tropospheric delays (ZTD) is studied for applications in meteorology. First, the status of IGS ultra-rapid orbit prediction is presented and specific problems are outlined. Second, a simplified analytical solution of the impact of ephemeris errors on estimated ZTDs is presented. Two widely used methods are studied?the precise point positioning technique (PPP) and the double-difference network approach. A simulation experiment is additionallyconducted for the network approach to assess the capability of ephemeris error compensation by the ambiguities. An example of marginal requirements for ephemeris accuracy is presented, assuming the compensation by ZTD only and admitting the error of 1 cm in ZTD. The requirement for the maximum orbit error 1 cm for radial and 8 cm for tangential position components using PPP approach, versus 217 cm (radial) and 19 cm (tangential) using network solution. Furthermore, an assessment of poss

Název v anglickém jazyce

The impact of errors in predicted GPS orbits on zenith troposphere delay estimation

Popis výsledku anglicky

The impact of precise GPS ephemeris errors on estimated zenith tropospheric delays (ZTD) is studied for applications in meteorology. First, the status of IGS ultra-rapid orbit prediction is presented and specific problems are outlined. Second, a simplified analytical solution of the impact of ephemeris errors on estimated ZTDs is presented. Two widely used methods are studied?the precise point positioning technique (PPP) and the double-difference network approach. A simulation experiment is additionallyconducted for the network approach to assess the capability of ephemeris error compensation by the ambiguities. An example of marginal requirements for ephemeris accuracy is presented, assuming the compensation by ZTD only and admitting the error of 1 cm in ZTD. The requirement for the maximum orbit error 1 cm for radial and 8 cm for tangential position components using PPP approach, versus 217 cm (radial) and 19 cm (tangential) using network solution. Furthermore, an assessment of poss

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DE - Zemský magnetismus, geodesie, geografie

OECD FORD obor

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Projekt

<a href="/cs/project/GA205%2F08%2F0969" target="_blank" >GA205/08/0969: Určování přesných drah družic GLONASS v ultra-rychlém řešení a jejich využití</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

GPS solutions

ISSN

1080-5370

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

229-239

Kód UT WoS článku

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EID výsledku v databázi Scopus

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