Effect of radio frequency interference (RFI) on the Global Positioning System (GPS) signals

Idris, Ahmad Norhisyam; Suldi, Azman Mohd; Hamid, Juazer Rizal Abdul; Sathyamoorthy, Dinesh

doi:10.1109/cspa.2013.6530041

Cited by 11 publications

(6 citation statements)

References 1 publication

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“…This is attributed to the noise-like code structures of GNSS signals, enabling their reception even at low levels of interference. However, it is noteworthy that the required minimum spoofing power levels for inducing position fix loss are lower as compared to the minimum interference signal power levels observed during GNSS jamming tests conducted through both field evaluations [26][27][28] and GNSS simulation [29][30][31]. This disparity arises due to the difference in synchronisation between authentic and spoofing GNSS signals, compelling the GNSS receiver to recompute its position fix at relatively lower spoofing signal power levels.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of The Effect of Spoofing on Dual-Frequency Global Navigation Satellite System (GNSS)

Sathyamoorthy,

Ahmad Kazmar,

Mohd Rozlan

et al. 2024

JETAP

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This paper aims to assess the impact of Global Navigation Satellite System (GNSS) spoofing on the performance of a Garmin GPSMAP 66sr dual-frequency GNSS receiver. The evaluation is conducted through field assessments under three conditions: 1) single-frequency GPS L1 coarse acquisition (C/A) only, 2) single-frequency GPS L1 C/A and Galileo E1 open service (OS), and 3) dual-frequency GPS L1 C/A and L5, as well as Galileo E1 OS and E5a. The results emphasise the critical role of multifrequency GNSS in mitigating spoofing. In the dual-frequency multi-GNSS mode, spoofing does not occur as the GPS L5 and Galileo E5a signals remain unaffected by spoofing signals in the L1 / E1 band. In the single-frequency multi-GNSS mode, the higher number of observed GNSS satellites contributes to higher minimum spoofing power levels and longer durations between position fix loss and spoofing as compared to the GPS only mode.

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Section: Resultsmentioning

confidence: 99%

Evaluation of The Effect of Spoofing on Dual-Frequency Global Navigation Satellite System (GNSS)

Sathyamoorthy,

Ahmad Kazmar,

Mohd Rozlan

et al. 2024

JETAP

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“…Accuracy in GPS position estimation could be shrunk significantly by RFI (Radio Frequency Interference). Single and dual-frequency GPS receivers are influenced differently from an external RF interference [14]. A single frequency receiver undergoes the interference sooner in comparison to a dual-frequency receiver.…”

Section: Effect Of Radio Frequency Interference On Gps Signalsmentioning

confidence: 99%

“…A single frequency receiver undergoes the interference sooner in comparison to a dual-frequency receiver. According to outcomes of [14],…”

Section: Effect Of Radio Frequency Interference On Gps Signalsmentioning

confidence: 99%

Overview of GPS Fundamentals

Bhatnagar¹

2019

IJARSCT

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GPS (Global Positioning System) is a satellite based navigation system and is used in a variety of applications such as mapping, vehicle navigation and surveying. In this work, a detailed background of GPS is included. First, historical development of GPS technology is provided. This is followed by a detailed theoretical background of GPS and GNSS (Global Navigation Satellite System). Afterwards, the topics of "GPS estimation error" and "increasing GPS position accuracy" are covered. Then, various counterparts of GPS technology, developed by rival countries are discussed. Finally, future expectations of scientific world from the GNSS technology are presented.

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“…Typically, the raw C/N0 values with the internal interferences range from 40 to 50 decibel-Hertz (dB-Hz) depending on the thermal noises of the antenna and receiver hardware, and they can be reduced by the external RFI and jamming (Borio D et al 2016;Mackey S et al 2017;Paziewski J et al 2019). Exactly, the affected GNSS receivers below 40 dB-Hz can degrade the user positioning accuracy, continuity, and integrity (Idris A N et al 2013(Idris A N et al , 2014.…”

Section: Introductionmentioning

confidence: 99%

Statistical Analysis and Effects of Radio Frequency Interference in GPS Signal Quality in Thailand

Sophan,

Supnithi,

Myint

et al. 2024

Preprint

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The radio frequency interference (RFI) in global navigation satellite system (GNSS) signals has recently received much attention in the GNSS community because of frequent jamming issues. The carrier-to-noise density ratio (C/N0) is one of the common parameters to indicate the signal quality. In this work, we aim to analyze the occurrences of local RFI effects in areas surrounding the Suvarnabhumi International Airport as well as remote areas. Specifically, the percentage of RFI levels and raw C/N0 values are analyzed based on the modified RFI detection. The estimated RFI values are created from the raw C/N0 data, followed by the RFI levels generated by the empirical data. We validate the modified RFI detection by using the GNSS reference stations at the urban, suburban, and outside the capital city in Thailand. The user positioning errors with the high (severe) RFI levels are investigated based on the single point positioning (SPP) and real-time kinematics (RTK). From the experimental simulations, the high RFI levels at the urban are higher than those at the suburban. As expected, the statistical analysis covering COVID-19 (2019 to 2023) shows that the high RFI levels in June 2023 (post COVID-19) are more than those in June 2020 and 2021 (lockdown COVID-19) about twofold. Additionally, the SPP and RTK errors with the medium/high RFI levels have the error spikes in the centimeter to meter levels. The RTK performance with the fixed status can be affected and then returned to the float status as well.

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Effect of radio frequency interference (RFI) on the Global Positioning System (GPS) signals

Cited by 11 publications

References 1 publication

Evaluation of The Effect of Spoofing on Dual-Frequency Global Navigation Satellite System (GNSS)

Evaluation of The Effect of Spoofing on Dual-Frequency Global Navigation Satellite System (GNSS)

Overview of GPS Fundamentals

Statistical Analysis and Effects of Radio Frequency Interference in GPS Signal Quality in Thailand

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