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Old October 13th 03, 04:40 AM
Chad Irby
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In article ,
(Denyav) wrote:

No, it's a major advantage of modern radars. If you can't detect the
tiny radar signatures of airplanes, detect the much larger signatures of
the disturbed air in their wake.


Well,who needs to detect turbulence if your multistatic is capable of
detecting a grain of sand at 600 miles distance?


For one thing, because you really can't (wavelength considerations alone
make that a ridiculous claim), and even if you could, you'd get a screen
full of noise.

Besides,there is much more important reason,even a bit of forward scatterer
from the target carries lots of target information.


*if* you know what you're looking for, and under perfect conditions.
The only demonstrated multistatics have been working on targets
literally a thousand times the size of stealth planes (10 m^2 versus
0.01 m^2).

Stealth designers use physics to redirect incoming EM energy and multi static
designers use physics to catch redirected EM energy.


While stealth designers also *absorb* energy, and use those much-reduced
reflections to make ECM much more potent. that's the big weakness of
multistatics, you know... *way* easier to spoof.

Multistatics could use any kind of emitter,dedicated radar emitters,TV and
radio emitters,cell phone emitters etc and they could even use a method known
as "Track before Detect".


They can also use a method known as "getting jammed." Much easier to
jam someone when they're not looking for one particular signal or
frequency. You also have signal strength problems. A thousand
different sources at a fraction of a watt doesn't make up for one big
source at a few kilowatts.

If they think still so a couple of multistatic radar images of their
stealth showboats would surely help to change their minds.


Damned shame Russia can't manage that.

ictator on the planet. If they do a public demo and show it won't
work, someone might actually spend some time on a system that would be


I dont think that Russians have a working multistatic system,surely they know
fundamentals of multistatic systems and probably also know how to solve
coherency problems,but good multistatics are expensive systems and computing
power guzzlers.
Its very doubtful if Russia today has $$$ and the will to develop such costly
systems just to counter a few stealth planes.


In other words, this system that you're really sure works and can detect
all American stealth planes doesn't actually exist.

Now you know why.

"Then what just blew up our command center?"

Defeating multistatics is much harder,a multistatic could use
hundreds of emitters,if not thousands,and the most important
part,receiver/processor unit might stay always silent,but if you have
prior intelligence its becomes a very easy job.


The problem is that building such a system would be *insanely* expensive.

Claimed but not actually demonstrated. In the few public tests I've
heard of, they're just not that good. Not to mention that a radar that
detects sand grains will detect, well, sand grains.


A multi static that can detect a grain of sand at such distances,can
detect any "projected" stealth platform.


So this system that y0ou admit doesn't exist can detect grains of sand?

Nope.

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