Study of the GNSS Jamming in Real Environment

• Autorzy: Morong Tomáš , Puričer Pavel , Kovář Pavel

Identyfikatory

DOI

10.24425/ijet.2019.126284

• Języki publikacji: EN

Abstrakty

EN

GNSS systems are susceptible to radio interference despite then operating in a spread spectrum. The commerce jammers power up to 2 watts that can block the receiver function at a distance of up to 15 kilometers in free space. Two original methods for GNSS receiver testing were developed. The first method is based on the usage of a GNSS simulator for generation of the satellite signals and a vector signal RF generator for generating different types of interference signals. The second software radio method is based on a software GNSS simulator and a signal processing in Matlab. The receivers were tested for narrowband CW interference, FM modulated signal and chirp jamming signals, and scenarios. The signal to noise ratio usually drops down to 27 dBc-Hz while the jamming to signal ratio is different for different types of interference. The chirp signal is very effective. The jammer signal is well propagated in free space while in the real mobile urban and suburban environment it is usually strongly attenuated.

Słowa kluczowe

EN

GNSS; GPS; jamming; test method; signal propagation; interference immunity

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2019
• Tom: Vol. 65, No. 1
• Strony: 65--70
• Opis fizyczny: Bibliogr. 21 poz., tab., wykr., rys., fot.

Twórcy

autor

Morong Tomáš

• Department of Radio Engineering, Faculty of Electrical Engineering: CTU, Prague, Czech Republic

autor

Puričer Pavel

• Department of Radio Engineering, Faculty of Electrical Engineering: CTU, Prague, Czech Republic

autor

Kovář Pavel

• Department of Radio Engineering, Faculty of Electrical Engineering: CTU, Prague, Czech Republic

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).