Research on the impact of spoofing interference on the equipment of navigation information consumers

Аuthors

Romanov A. S.^*, Turlykov P. Y.^**

Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: romanov.a.s@bk.ru
**e-mail: turlykov78@mail.ru

Abstract

This experimental research confirms the vulnerability of geodetic user equipment of global navigation satellite system (GNSS) to spoofing attacks. The functions of user equipment are based on the receipt of radio frequency signals transmitted by navigation satellites. The structure of the signal for civil consumers is made up of unencrypted code, which is accessible by the general public and lets one deceive a GNSS receiver by broadcasting counterfeit GNSS signals, structured to resemble a set of normal GNSS signals. As part of this research, spoofing signals are created by a multi-GNSS constellation simulator that has 24 channels, supported signals GPS ranging code C/A radio frequency link L1 and GLONASS standard-precision signal in L1 band. Spoofing signals are added to the authentic signal ensemble and impact the reference station receiver Topcon NET-G3A. When the spoofing signal ensemble is at low power, positional accuracy decreases. When the power of the spoofing signal ensemble increases the number of satellite signals suitable to determine position decreases. If the threshold level of power of the spoofing signal ensemble is reached, then there is inaccurate information from the user equipment and the receiver plots erroneous coordinates. The disadvantage of this type of spoofing signals is the anomalously high value of signal-to-noise ratio that can detect spoofing signals and can be used to create systems counteracting spoofing signals. The absence of detection subsystems for deceptive spoofing signals is revealed by user equipment in automatic mode.

Keywords:

global navigation satellite system, vulnerability, spoofing

References

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2. Global positioning systems directorate systems engineering & integration. Interface specification IS-GPS-200. 2013. 213 p.

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