sergey.alexandrov, It is a radar detection system for large vehicles. The system, manufactuted by Brigade Electronics of London, detects objects or people by means of sensors attached to the outside of the vehicle. http://www.roadpeace.org/resources/Cemex-_Side-Scan_Side_Detection_System.pdf

First, I am not army trained. However I can read the language well. Armored vehicles and tanks need protection from men carrying anti-tank weapons. To show people in the vehicle the danger, they need a system or sensor that shows what happens outside the vehicle. Maybe the sensor sees rockets, anti-tank rifles, and mines. Maybe a modern system also finds chemicals and radiation.