Nowhere to run to, nowhere to hide (Image: Zap Art/Getty)
WHY jump in a cab to “follow that car” when an airborne drone could do the job for you? The US Pentagon’s Defense Advanced Research Projects Agency is developing a radar system which sees around corners and down into “urban canyons”. DARPA hopes to be able to track vehicles across an entire city using just a few uncrewed aircraft.
Traditional radar relies on direct line of sight, so it’s tricky to track a vehicle that keeps nipping behind buildings. But DARPA believes that by using buildings as mirrors, it will…
