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2 Zeszyty Naukowe / Akademia Morska w Szczecinie

2 2014

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Primenenie sputnikovogo komnasa dlâ obnaruženiâ GNSS-spufinga

Dobryakova L., Lemieszewski Ł., Lusznikov E., Ochin E.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2014

nr 37 (109)

28--33

The article discusses a new approach to the detection of GNSS spoofing, based on the use of satellite compass. Comparing the results of measurements of GNSS receivers of compass in two modes (normal mode of GNSS navigation and spoofing mode). The studies have shown, that in mode of spoofing attacks in both receivers of satellite compass we have the equality of coordinates, which in algorithm coordinate definitions, determine mathematical indeterminate form 0/0. This means getting out of the operating status of the satellite compass that can be used as an alarm “spoofing attack” to take appropriate security measures of GNSS navigation.

Design and analysis of spoofing detection algorithms for GNSS signals

Dobryakova L., Lemieszewski Ł., Ochin E.

Zeszyty Naukowe / Akademia Morska w Szczecinie

2014

nr 40 (112)

47--52

Many civil GNSS (Global Navigation Satellite System) applications need secure, assured information for asset tracking, fleet management and the like. But there is also a growing demand for geosecurity locationbased services. Unfortunately, GNSS is vulnerable to malicious intrusion and spoofing. How can users be sure the information they receive is authentic? Spoofing is the transmission of matched-GNSS-signalstructure interference in an attempt to commandeer the tracking loops of a victim receiver and thereby manipulate the receiver’s timing or navigation solution. A spoofer can transmit its counterfeit signals from a stand-off distance of several hundred meters or it can be co-located with its victim. Spoofing attacks can be classified as simple, intermediate, or sophisticated in terms of their effectiveness and subtlety. In an intermediate spoofing attack, a spoofer synchronizes its counterfeit signals with the authentic GNSS signals so they are code-phase-aligned at the target receiver. In this paper we consider the anti-spoofing algorithms based on spoofing detection via Dual-Receiver.