Solar Radio Burst Events on 6 September 2017 and Its Impact on GNSS Signal Frequencies

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F19%3A00511926" target="_blank" >RIV/67985815:_____/19:00511926 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0302168" target="_blank" >http://hdl.handle.net/11104/0302168</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2019SW002198" target="_blank" >10.1029/2019SW002198</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solar Radio Burst Events on 6 September 2017 and Its Impact on GNSS Signal Frequencies

Popis výsledku v původním jazyce

During the intense solar radio bursts on 6 September 2017, Global Navigation Satellite Systems (GNSS) signal interferences were observed at ground stations in the European longitude sector from 20 degrees N to 70 degrees N for all GNSS satellites in view including GPS, GLONASS, and Galileo. The solar radio noise reduced the signal-to-noise ratio with clear frequency dependence. The impact of the radio burst has been found at L2 and L5 frequencies, but not at L1 frequency. The ground observation of the solar radio spectrum between 1.0 and 2.0 GHz corresponds well to such frequency dependence. The maximum signal-to-noise ratio reduction of -10 dB was found when the solar radio flux was pulsating around 2,000 solar flux unit level. Precise point positioning results show that accuracy is reduced with stronger deviation for dual-frequency solutions than for single-frequency solutions based on L1 signal only. The positioning error refers rather to the solar extreme ultraviolet flare than to solar radio interferences. The results presented here are a clear indication of frequency-dependent GNSS performance degradation during strong space weather events.

Název v anglickém jazyce

Solar Radio Burst Events on 6 September 2017 and Its Impact on GNSS Signal Frequencies

Popis výsledku anglicky

During the intense solar radio bursts on 6 September 2017, Global Navigation Satellite Systems (GNSS) signal interferences were observed at ground stations in the European longitude sector from 20 degrees N to 70 degrees N for all GNSS satellites in view including GPS, GLONASS, and Galileo. The solar radio noise reduced the signal-to-noise ratio with clear frequency dependence. The impact of the radio burst has been found at L2 and L5 frequencies, but not at L1 frequency. The ground observation of the solar radio spectrum between 1.0 and 2.0 GHz corresponds well to such frequency dependence. The maximum signal-to-noise ratio reduction of -10 dB was found when the solar radio flux was pulsating around 2,000 solar flux unit level. Precise point positioning results show that accuracy is reduced with stronger deviation for dual-frequency solutions than for single-frequency solutions based on L1 signal only. The positioning error refers rather to the solar extreme ultraviolet flare than to solar radio interferences. The results presented here are a clear indication of frequency-dependent GNSS performance degradation during strong space weather events.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Space Weather

ISSN

1542-7390

e-ISSN

—

Svazek periodika

17

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

816-826

Kód UT WoS článku

000477724600004

EID výsledku v databázi Scopus

2-s2.0-85067463061