A Solution to GNSS-Denied Navigation for Aeronautics—Combining GNSS-Denied Navigation Means and Collaborative Navigation

This paper presents how the combination of Vision-based Navigation (VBN), Terrain Referenced Navigation (TRN) and Star Navigation complement each other to tackle the challenge of GNSS-denied navigation for aeronautics covering a wide range of environmental and operational conditions. Moreover, Collaborative Navigation contributes to GNSS-denied navigation capability by distributing the position information within the group of collaborating platforms in a stochastically optimal way using an Extended Kalman Filter.