posted on Nov, 17 2006 @ 05:58 AM
Well, the Idea of stealth not being invisible was explained in the thread:
Stealth Technology Explained
As for the Idea of using Jammers to support Stealth Aircraft, that is a common sense idea. One of the limits of Jamming that few people are aware of
is called "Burn Through Range
. Burn Through Range is the point at which the plane's Radar Signature become too large to hide behind a jammer
of a given strength and the aircraft can once again be tracked on radar. The lower the RCS of the aircraft is, the shorter the Burn Through Range.
Burn Through Range
The reason this occures is because the tranmitter of a ground-bases radar in inherently stronger than the transmitter of the airborn jammer. Jammers
work by creating lots of "noise" so that the computer can't distinguish between the actual radar target and the random signals that are being sent
back. However, this only works as long as the false echos are close to the strength of what they are hiding. This is also the reason you can fool
Radar with chaff (metal foil used to decieve radar). What Jamming is really doing is giving the Radar so many targets of identical size that the
computer doesn't have a way keep track of any individual target.
To Use an Analogy
: Imagine watching a heard of Hundreds of Zebra sampeeding. You are trying to keep a eye on One Spacific zebra in the heard.
Now, as the animals race along and move around withing the group itself, you will loose track of the individual you are trying to watch.
The same concept is how jamming works. If the radar can't pick out and track an individual target, it's can't come up with a fireing solution for
its SAM's or Anti-Aircraft guns.
Now, this only works if all of the targets appeare to be about the same size. As an aircaft gets closer to the Radar, it relects more radar, which in
turn makes it look bigger. At a certine point, the Radar signature from the airplane becomes larger then the false echos created by the Jammer. At
this point, the aircraft can no longer hide in all of the false echos. It like a basket ball player standing amoung a room full of children. At 7 feet
tall, he is still easy to see, even though there might be as many as 100 other people in the room.