Result TM03000027-V3: IAP 1 - Comparison of GNSS positional inaccuracies with characteristics of ongoing ionospheric disturbances, particularly MSTID type. Výsledek TM03000027-V3: IAP 1 - Porovnání nepřesností v pozici GNSS s vlastnostmi probíhajících ionosférických poruch, převážně typu MSTID

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F24%3A00603571" target="_blank" >RIV/68378289:_____/24:00603571 - 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

Result TM03000027-V3: IAP 1 - Comparison of GNSS positional inaccuracies with characteristics of ongoing ionospheric disturbances, particularly MSTID type. Výsledek TM03000027-V3: IAP 1 - Porovnání nepřesností v pozici GNSS s vlastnostmi probíhajících ionosférických poruch, převážně typu MSTID

Popis výsledku v původním jazyce

The effect of MSTIDs and related ionospheric disturbances on the accuracy of GNSS based positioning is demonstrated by analysis using experimentally obtained data. Here we present results using by far the most common application: stand-alone GNSS receivers using SBAS (specifically EGNOS as measured in CentralnEurope). In this study we do not present positioning deviation results obtained using RTK/PPP techniques. We have undertaken comparisons with different types of GNSS receivers, some of them co-locatted or even measuring on common antenna (antenna splitter was used to distribute the signal), which was also done with scintillation monitoring receiver. nAs the results were similar (and bigger in scale) using low-cost GNSS receivers, we focus at presenting the outcomes using measurements of advanced GNSS Septentrio Mosaic X-5 receiver providing comparison with periods having all the indicators of ionospheric disturbances available. There were found effects on EGNOS-supported GNSS positioning deviations even using advanced geodetic Septentrio and Trimble GNSS receivers to be significantly related to some ionospheric disturbances, showing trend of positioning deviations with the MSTID activity-related ionospheric disturbances monitored by the CDSS. This main result demonstrates the ionospheric HF Doppler shift to provide best indications of GNSS positioning accuracy deviations, showing higher positive GNSS altitude deviations during positive CDSS Doppler shifts dF (and vice-versa with more negative altitude deviations during negative CDSS dF)

Název v anglickém jazyce

Result TM03000027-V3: IAP 1 - Comparison of GNSS positional inaccuracies with characteristics of ongoing ionospheric disturbances, particularly MSTID type. Výsledek TM03000027-V3: IAP 1 - Porovnání nepřesností v pozici GNSS s vlastnostmi probíhajících ionosférických poruch, převážně typu MSTID

Popis výsledku anglicky

The effect of MSTIDs and related ionospheric disturbances on the accuracy of GNSS based positioning is demonstrated by analysis using experimentally obtained data. Here we present results using by far the most common application: stand-alone GNSS receivers using SBAS (specifically EGNOS as measured in CentralnEurope). In this study we do not present positioning deviation results obtained using RTK/PPP techniques. We have undertaken comparisons with different types of GNSS receivers, some of them co-locatted or even measuring on common antenna (antenna splitter was used to distribute the signal), which was also done with scintillation monitoring receiver. nAs the results were similar (and bigger in scale) using low-cost GNSS receivers, we focus at presenting the outcomes using measurements of advanced GNSS Septentrio Mosaic X-5 receiver providing comparison with periods having all the indicators of ionospheric disturbances available. There were found effects on EGNOS-supported GNSS positioning deviations even using advanced geodetic Septentrio and Trimble GNSS receivers to be significantly related to some ionospheric disturbances, showing trend of positioning deviations with the MSTID activity-related ionospheric disturbances monitored by the CDSS. This main result demonstrates the ionospheric HF Doppler shift to provide best indications of GNSS positioning accuracy deviations, showing higher positive GNSS altitude deviations during positive CDSS Doppler shifts dF (and vice-versa with more negative altitude deviations during negative CDSS dF)

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10509 - Meteorology and atmospheric sciences

Projekt

<a href="/cs/project/TM03000027" target="_blank" >TM03000027: Přesnost GNSS závislá na dynamice a narušení ionosféry</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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