Analysis of GNSS Interference Events Based on TRITON GNSS-R Measurements

Jyh-Ching Juang and Yung-Fu Tsai

Peer Reviewed

Abstract:	Although the issue of global navigation satellite system (GNSS) interference has been addressed in the community of satellite navigation, the extent of GNSS interference in the past couple of years has raised serious concerns for air and marine transportation. This paper assesses GNSS interference based on observations of the TRITON GNSS reflectometry (GNSS-R) payload. The TRITON GNSS-R payload contains a navigation unit and a science unit that are designed to receive direct line-of-sight and scattered GNSS signals, respectively. In the presence of radio-frequency interference, these two units experience different phenomena, including navigation disruptions, spoofed localization, and degradation of GNSS-R performance. This paper describes the effects of interference, analyzes the observation data, and elucidates the interference characteristics. Analyses of GNSS interference based on space data are believed to be instrumental for providing information concerning the frequency, location, and severity of interference and for developing interference-resistant techniques.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 72, Number 4
Cite this article:	Citation Tools are available on the NAVIGATION open access site https://doi.org/10.33012/navi.720
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