They say in the link that it's similar to how CT scans are done. I've never heard of anything similar to the dual robot method being done, it seems extremely im

They say in the link that it's similar to how CT scans are done. I've never heard of anything similar to the dual robot method being done, it seems extremely impressive, is there any similar technology available? I'm guessing that the breakthrough is that it's using standard WiFi, the robots can be put into place remotely, and the size and shape of the room/object being scanned can be variable. As far as I know the WiFi imaging method has only been successful for about 5 years. The fact that it can go through concrete walls is also very impressive. It probably won't be useful for pinpointing people inside of a building (yet), but it would at least give soldiers, police, disaster teams, or construction teams a decent blueprint/layout of the building. Just another piece of information that could potentially help them do their job better. I think that they should attempt to create a more 3D map of the buildings using this technology, if possible. They could probably add several more sensors and inputs to create a better image. The processing time mentioned in the article seems very high, that might be one major limitation that better algorithms, methods, or hardware might be needed to fix.