DARPA seeks 'Precision Electronic Warfare' US military researchers are looking to build networks of small, low-power transmitter boxes which together can perform "surgical jamming" of digital signals - shutting down cellphones and sat nav receivers within an area "on the order of a city block corner". DARPA concept of the focus needed for 'surgical jamming' Watch out …
The idea is that all of the "nodes" by knowing their location, and *exact* time, can form a giant phased-array antenna, capable of electronically directing itself at the target. The issues here will be time synchronization, targeting, and actually getting this thing to be practical... perhaps just another program to run in the software-defined-radio's they are already talking about?
remote cooking the target eh.!
i bet that this idea will result in any digital device in the target area basicaly being deep fried and crashing, forget about jamming the signal strength will be enough to mess up anything and will be easy to detect with basic electronics.
result will be the target will go walkabout and get darpa tech to knock out some gov' sensitive site or stand outside the local police station.(that'l upset the boys in blue who wont be able to watch tv whilst sat behind the desk doing paperwork(reading the sport)..
see under shooting self in foot.
So if the target simply turns off their cell phone and uses semaphores, all of this gadgetry is useless. (Or maybe they would just shout...) Does this work against banging on a jungle drum?
Anyways, what it looks like is that they are using omnidirectional beacons. The synchronization is necessary because they synchronize the beacons' signals phases to create a large signal at the target's physical location. The beacons add a certain level of background noise, but "generally" it won't interfere with "friendly" communication.
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