It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Active cancellation is a theoretical military jamming system that involves the sampling of an incoming radar signal, analyzing it, then returning ths signal slightly out of phase, thus "cancelling" it out. While there are no official systems using this in service, it is rumoured to be in use on USAF Stealth Aircraft like the B-2, F-117, F-22A, and possibly the F-35. It is also speculated that the Thales SPECTRA aicraft protection suite also uses this system.
Originally posted by ShadowXIX
I would imagine you would need massive computing power to calculate every possible variable of the planes radar return as the plane is ever moving, changing the angle of the radar waves hitting it in real time. Would it be able to handle multiple radars emitters?
Could a systems like this perhaps produces a "ghost" radar image of the plane if it couldn't completely mask its radar image? I would think if a system could mess up the radar return just enough to give a false position it would be very handy.
Originally posted by MadGreebo
I think this is one of the ways the B-2 makes itself disapear from radar. Sure its stealthy, sure its smooth, but from a look down / shoot down radar its like a barn door...but then the USAF say it isn't.... so how the hell do they manage that then?