This image shows a screen shot of a sector view from a test of one of our diver detection sensors used in the SPS. Automatic detection tracks for 1 scuba diver and 1 closed circuit rebreather (CCR) diver are shown as red lines on top of the sector view. In this scenario, the CCR diver and the scuba diver start together once dropped from the boat at nearly 500 meters range to the sonar. They then swim together until about 250 meters range. At this point, they split apart and the CCR diver continues closer to the pier. The scuba diver loiters for a few minutes before continuing to the pier.
In this scenario, the two divers started in only 3.5 meters of water. At approximately 300 meter range, the sea floor slopes down to 8-10 meters water depth. The following screen shot shows a waterfall display corresponding to these tracks.