GNSS Signal Quality Monitoring Based on a Reference Station Network

Bredenbeck, Anton; Rikkinen, Topi; Vallet, Jose; Koivisto, Michelle; Honkala, Salomon; Bhuiyan, Zahidul; Thombre, Sarang

doi:10.23919/enc48637.2020.9317361

Cited by 4 publications

(2 citation statements)

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“…Several interference monitoring systems exist [ 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. There is also an attempt to standardize monitoring approaches [ 30 ].…”

Section: Introductionmentioning

confidence: 99%

“…As a result, the number of monitoring receivers is too low to be effective. A common strategy is to mount these systems near other critical infrastructures, such as fixed installations on highways [ 20 , 24 , 26 ], airports [ 2 , 18 , 27 , 28 ], or existing geodetic reference networks [ 6 , 7 , 8 , 25 , 29 ], which makes these more effective. A fascinating approach is a monitoring station onboard the international space station (ISS) [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

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Low-Cost COTS GNSS Interference Monitoring, Detection, and Classification System

Merwe

Franco

Hansen

et al. 2023

Sensors

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Interference signals cause position errors and outages to global navigation satellite system (GNSS) receivers. However, to solve these problems, the interference source must be detected, classified, its purpose determined, and localized to eliminate it. Several interference monitoring solutions exist, but these are expensive, resulting in fewer nodes that may miss spatially sparse interference signals. This article introduces a low-cost commercial-off-the-shelf (COTS) GNSS interference monitoring, detection, and classification receiver. It employs machine learning (ML) on tailored signal pre-processing of the raw signal samples and GNSS measurements to facilitate a generalized, high-performance architecture that does not require human-in-the-loop (HIL) calibration. Therefore, the low-cost receivers with high performance can justify significantly more receivers being deployed, resulting in a significantly higher probability of intercept (POI). The architecture of the monitoring system is described in detail in this article, including an analysis of the energy consumption and optimization. Controlled interference scenarios demonstrate detection and classification capabilities exceeding conventional approaches. The ML results show that accurate and reliable detection and classification are possible with COTS hardware.

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