Optimal fusion of multiple GNSS signals against spoofing sources

Authors

SELÇUK ŞAHİN
ABEDALLATIF BABA
TOLGA SÖNMEZ

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.

DOI

10.3906/elk-1604-123

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