China claims to have developed radar that can detect STEALTH jets

UK Daily Mail ^ | September 8, 2016 | Jennifer Newton

[Robert A Cook PE]

One way is to use a very high power emitter that slightly changes frequencies constantly.
Then pepper your expected approach rout with (multiple mobile or fixed) receivers. The signal is reflected away from the target but not towards the emitter receiver. Instead, any other receivers each get a tiny part of the signal. Use the outside separate receivers to build uo a path over time.

[spel_grammer_an_punct_polise]

Uh, how did they test it? Does China have a stealth airplane with which to test the radar? ;-)

My BS meter just pegged! LOL

[InterceptPoint]

One way is to use a very high power emitter that slightly changes frequencies constantly. Then pepper your expected approach rout with (multiple mobile or fixed) receivers. The signal is reflected away from the target but not towards the emitter receiver. Instead, any other receivers each get a tiny part of the signal. Use the outside separate receivers to build uo a path over time.

Yes. That would work. You would need some good software and a nice networked system but that shouldn't be a big deal these days.

[PapaBear3625]

If you can locate a stealth plane to within a cubic mile, that means you can vector planes to them, even if you can't get missile lock. And the closer you get, the less stealthy the target is.

A missile with its own active radar that gets close enough, would likely acquire a stealth aircraft.

[Little Ray]

Also, offset receivers can detect stealth aircraft. The stealth configuration deflects the radar waves so that they do not return to the transmitting site. Offset receivers can detect the return...

[GreenHornet]

If they did, they wouldn’t advertise it.

During the Reagan years, one of the ways we forced the Soviet Union to spend themselves into bankruptcy was to "leak" military secrets about non-existent weapon systems and other military capabilities we did not have. The Soviets would then spend huge sums of money trying to duplicate what they thought we had, or come up with effective countermeasures.

[PapaBear3625]

Then pepper your expected approach rout with (multiple mobile or fixed) receivers. The signal is reflected away from the target but not towards the emitter receiver. Instead, any other receivers each get a tiny part of the signal.

The technology already exists. You have passive receivers that look for reflections of cell tower emissions.

[Hulka]

And detection range is the issue, as well.

[BBell]

If they actually did develop this radar it was probably from using stolen technology from us. I don’t know if the Chinese have came up with anything original for a few hundred years now.

[Robert A Cook PE]

Hey!

You have to think like Hillary.

They merely said they “had a radar that could detect stealth aircraft” ... They never said they tested it.

[DCBryan1]

Serbians did it. They locked and fired into space that WASNT showing a radar return IIRC. They did see the F117 and then lost it. Then they fired into an “anomaly” and hit it.

[DiogenesLamp]

If they did, they wouldn’t advertise it.

My thinking exactly.

[Harmless Teddy Bear]

All radar can detect stealth jets. Seeing them is not the problem. The problem is trying to pick out what is stealth jet and what is bird or possibly bat.

[DCBryan1]

All radar can detect stealth jets. Seeing them is not the problem. The problem is trying to pick out what is stealth jet and what is bird or possibly bat.

Yep, and countries with LOTS of cheap computing power are figuring out that most birds/bats/hummingbirds don't fly at 400-700 MPH.

[shotgun]

Since the stealth F-117 had a radar signature of a bumble bee or some other small insect, I would say they used bumble bees or insects...

I think that the B-2 Bomber radar signature is still classified

[IYAS9YAS]

I didn’t tell him until later that we were using the backup optical tracker, because the radar wasn’t seeing anything.

I'll bet the look on the officer's face would have been a hoot.

[IYAS9YAS]

They did see the F117 and then lost it. Then they fired into an “anomaly” and hit it.

With multiple SAMs, IIRC. Not just one. Kind of a shotgun approach.

[Lazamataz]

The Australians beat stealth years ago by simply looking for the turbulence created by the stealth aircraft’s jetwash.

We solved that one by dropping fabric softener sheets every 20 meters.

'Bounce' works best.

[Chode]

yeah, right...

[ganeemead]

A well run country might want to at least investigate this claim before spending quadrillions of dollars on something like the F-35....