Quantum Radar to make Stealth Obsolete?

This sounds a little too much like cold fusion to me, but just for what it is worth:

http://www.newstrackindia.com/newsdetails/2012/12/18/155-Now-unjammable-quantum-radar-that-could-make-stealth-tech-obsolete.html

I could not get the link to work here with our security, so I know nothing about what they are claiming.

 

Here's the text:

It's currently a lab demonstration and mostly to address a theoretical counter-counter measure scenario.

The idea is that a different type of stealth technology (signal spoofing, rather than controlled reflection and absorption) could intercept and return a radar signal, adapting the return signal to create the type of radar return desired, say a bird rather than a plane. This demo shows that it's conceptually possible to counter that counter by individualizing the photons so that you know if the return is the same photon you sent out versus a spoofed photon.

 

Hmm, depends how scalable this is. But like ylshih said, this would only affect
a specific type of active stealth (spoofing). Passive stealth (shape, materials, etc) isn't affected.

 

Their description does not really seem to address how passive stealth works on an aircraft, such as the B2. They attempt to prevent causing any return echos from coherently being sent back to the observing radar - not on trying to modify the echo to make the plane look like something else.

I would also expect that if this were the real cutting-edge deal, our military would have this made top secret and have put the gag order on such press releases.

We shall see.

 

Passive stealth deflects and adsorbs radar so that nothing gets back to the transmitter..doesn't matter how fancy the photons are. As far as I know, the ability of radar to detect passive stealth is just a function of frequency and power (and fancy signal processing too).

 

Yup. Absorption and deflection - not messing with the photons one by one to make it look like a California Condor.

However, speaking just in imagination - wouldn't it be reasonable to think that the military has been hard at work figuring out a way that WE could see a passive stealth aircraft? - and for sure they would be keeping that secret.

 

Not sure what your point is here relative to the article. The article talks about how a radar could be built to essentially prevent an aircraft radar from spoofing it with false signals by doing stuff to the photons..that has nothing to do with passive stealth. Aircraft spoof radar with active "stealth", i.e. the radar intercepts the incoming signal and retransmits a different one to fool the transmitter. This type of 'stealth' (not really stealth, more like electronic-attack) is more for aircraft that are not inherently stealthy. A passively stealth aircraft would not want to spoof a radar that already cannot see it because it would effectively give away it's existence.

Sure we are - however, this article has nothing to do with seeing passive stealth aircraft. The Chinese and Russians are both developing stealth aircraft, and the Russians is for export (possibly Chinese too). We would be very interested in be able to see these, and we most certainly have programs that are working on that, that's not even a question.

 

My point was what you said, Alex. It is not something that sounds useful against passive stealth.