Fig. 9From: Acoustic positioning in a reflective environment: going beyond point-by-point algorithmsAerial view of the navigation lock complex and receiver array for 2D-positioning in Kwaadmechelen. The green dots are the receivers, the blue dots are the synchronisation tags (collocated with receivers). The blue triangles are reference tags, of which R4 was only installed towards the end of the study, since April 5th 2017. On that day, S8 was also moved to another position, indicated with S8-2. Background from Google Maps SatelliteBack to article page