Angle-of-Arrival GPS Integrity Monitoring Insensitive to Satellite Constellation Geometry

Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9870)


Signals in global navigation satellite systems (GNSS) due to weak power are vulnerable to structural interferences which can lead to a significant deviation of the position solution from its true value. In aviation, UAV-controlling or some another life critical applications misleading coordinate information is a great threat so that procedures to detect such GNSS integrity failure are under a big concern. This paper is focused on decision-making algorithm for the failure detection applied to Angle-of-Arrival (A-o-A) integrity monitoring method in a case when the fixed decision threshold is preset in accordance with false alarm probability restricted for all possible observing satellite constellations. Decision threshold value was obtained for a different number of satellites by statistical simulations for quite a number of randomly generated satellite constellations with suitable geometric dilution of precision (GDOP) level. Minimum number of navigation signals was estimated for the situation when the simplest three elements antenna array implemented on compact UAV is used for a direction-finding procedure. As a result A-o-A integrity monitoring efficiency was estimated for real GPS satellite constellation under conditions when decision threshold was fixed as insensitive to satellite constellation geometry.


Global navigation satellite systems Interference mitigation Spoofing detection Antenna array 


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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  1. 1.St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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