Fig. 2From: Acoustic positioning in a reflective environment: going beyond point-by-point algorithmsVPS positions calculated for the fixed transmitters S17 (purple), S15 (blue), S16 (green), S13 (orange) and S7 (red) during the entire study period, illustrating the variation in errors among transmitters. In UTM coordinates to allow background plotting from the ArcGIS Map serverBack to article page