in narrow-band frequency--narrow-band jamming
requires good knowledge of jammed device frequency.
This technique involves just increasing the jamming
power by enough to overcome the processing gain in the receiver.
trying to make the system work, the jamming
system," an administration official told reporters on March 23rd.
One advantage of noise jamming
is that very little must be known about the characteristics of the victim emitter for jamming
to be effective.
The J/S ratio required for effective jamming
can vary from 0 dB to 40 dB or more, depending on the type of jamming
employed and the nature of the desired signal modulation.
is achieved when the obscuring noise appears very similar to the noise in the victim's receiver.
The EA-18G combines the combat-proven F/A-18F strike fighter with the latest technology Airborne Electronic Attack (AEA) avionics suite that will provide state-of-the-art reactive and pre-emptive jamming
Under the agreement, CeLight will leverage its unique VectorWAVE digital platform for coherent optical signal synthesis and analysis to provide advanced security at the physical optical layer, using techniques that will thwart malicious jamming
and eavesdropping of optical communications links.
stations providing local jamming
to all entrance areas can be extended by the addition of mobile stations driven around the stadium.