NDLI: GNSS intermediate spoofing detection via dual-peak in frequency domain and relative velocity residuals

Content Provider	IET Digital Library
Author	Tu, Jiaxun Zhan, Xingqun Chen, Maolin Gao, Han Chen, Yuankang
Abstract	GNSS intermediate spoofing is a big threat to GNSS-dependent services because of its strong concealment. When the carrier Doppler of the spoofing signal is not locked to that of the authentic signal, such spoofing will result in the presence of dual-peak in the signal spectrum. In the absence of interference, there should be no dual-peak. In the multipath scenario, dual-peak may exist, but the number of dual-peaks and relative velocity residual magnitudes of dual-peak signals are different from those in the spoofing scenario. Therefore, an intermediate spoofing detection technique based on dual-peak in frequency domain and relative velocity residuals is proposed in this study, which can not only detect spoofing but also distinguish spoofing scenario from the multipath scenario. Fast Fourier transform based methods are used to detect the dual-peak and extract the Doppler difference of the dual-peak, and the relative velocity residual calculation based on Doppler differences is derived. The performance of this approach is evaluated both analytically and experimentally: simulation results show spoofing false alarm probability in the multipath scenario is small, which indicates that spoofing scenario and multipath scenario can be well distinguished; and the effectiveness is verified based on the Texas Spoofing Test Battery (TEXBAT).
Starting Page	439
Ending Page	447
Page Count	9
ISSN	17518784
Volume Number	14
e-ISSN	17518792
Issue Number	Issue 3, Mar (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-rsn/14/3
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2019.0366
Journal	IET Radar, Sonar & Navigation
Publisher Date	2019-12-20
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Authentic Signal Carrier Doppler Doppler Effect Dual-peak Signal False Alarm Probability Fast Fourier Transform Frequency Domain GNSS Intermediate Spoofing Detection Integral Transforms in Numerical Analysis Multipath Scenario Probability Radio Navigation And Direction Finding Relative Velocity Residual Magnitudes Satellite Communication System Satellite Navigation Signal Detection Signal Spectrum Spoofing Signal Statistics Texas Spoofing Test Battery TEXBAT
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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