Optimal fusion of multiple GNSS signals against spoofing sources

Authors

SELÇUK ŞAHİN
ABEDALLATIF BABA
TOLGA SÖNMEZ

DOI

10.3906/elk-1604-123

Abstract

Electronic attacks such as spoofing are becoming an increasing threat for satellite-based navigation receivers. The aim of this paper is to develop a preventive method against such electronic attacks. In our scheme, the localization system uses four different Global Navigation Satellite Systems (GNSSs): GPS, Galileo, GLONASS, and Compass. The signals received from these satellite systems will be fused inferentially and will be tracked according to a linear model. The linear model that we developed is solved with a Kalman filter and simulated under different scenarios. When a discrepancy is detected in the output of one of the GNSS receivers due to spoofing, it is excluded from the fusion.

Keywords

Spoofing signals, asymmetric threat, jamming signal, navigation systems

First Page

3289

Last Page

3299

Recommended Citation

ŞAHİN, SELÇUK; BABA, ABEDALLATIF; and SÖNMEZ, TOLGA (2017) "Optimal fusion of multiple GNSS signals against spoofing sources," Turkish Journal of Electrical Engineering and Computer Sciences: Vol. 25: No. 4, Article 60. https://doi.org/10.3906/elk-1604-123
Available at: https://journals.tubitak.gov.tr/elektrik/vol25/iss4/60