F-22 / F-35 5th Generation jets | News & Discussions.

[randomradio]

no they didnt , it just that you have very bad understanding of physics

https://defence.pk/threads/the-rafale-hidden-beauties-and-its-future.422896/page-5#post-8339176
VP of Dassault

Of course we are in areas somewhat confidential, but we can say that the front view signature of a Rafale is the signature of a sparrow.

 

[randomradio]

So all these billions have been wasted all this time in developing 'stealth' aircrafts. All these decades since the end of WW II that we have been able to generate signals of any kind, no one bothered to think of faking clutter signals and making a 'bubble' of these signals.

And YOU, an anonymous handle on an Internet forum figured it all out.

What you said about clutter rejection is -- nonsense.

First, what is 'clutter' is convenient, meaning it changes. For an air defense radar, rain is clutter and rejected. But for a weather radar, any metallic body is clutter and rejected. That means there is no signal that is inherently clutter.

Second, the initial criteria for assessing a signal to see if it is to be rejected or for further processing is amplitude. If a signal is below a threshold, it is rejected.

Third, if a signal passed the amplitude disqualification and is filed away for further processing, its characteristics are analyzed to see if it meets other qualifiers. If it does not meet the radar design's intentions, the signal is considered to be clutter.

This is all generic stuff and will stay true forever. Just the way this is processed has changed far too much since your time.

Second, the initial criteria for assessing a signal to see if it is to be rejected or for further processing is amplitude. If a signal is below a threshold, it is rejected.

Nope. It is no longer rejected. It continues to the 'third' part of your list now. Amplitude is no longer a criteria for immediate rejection. This is the problem, you are way behind the current processes.

All signals undergo processing now. It doesn't matter how small or how big. Even your own radar signals are now processed by the ESM. And this data is compared to the radar data, a library of known signals, and even the data collected from other platforms and their own libraries. This is all done by something you have never seen in operation, the fusion engine. RF, IR, UV and visible light, all are used to create the air picture now.

Computers are now able to process hundreds of thousands of different signals simultaneously. We are now capable of predicting the 'future state' of all the collected signals now. The ESM is now capable of predicting t+1 events accurately.

So it is a combination of amplitude and characteristics that if a signal is to be considered clutter or not. So for you to say this '...in combination with other sensors and radars.' means you do not know what you are talking about. What other sensors and radars ? There is only one radar and it is the one being used. If a body is being illuminated from multiple sources in different directions, the one radar will not know from analyzing the echo signal that this echo signal is a composite of multiple seeking signals.

It's called sensor fusion. 'Other sensors' are sensors that work in other parts of the spectrum.

You see sensor fusion has reached such extremes that all the negative qualities of radars have been negated with the use of other sensors. Data from multiple parts of the spectrum are now available. Even offboard sensors have become available.

You are making shit up as you go along in this debate. You are basically saying that a lower amplitude signal will override a higher amplitude signal. I cannot respond to that.

I never said that. I said an equal amplitude signal will beat another signal of equal amplitude.

Please do not try to put words in my mouth. This is what I said...

And for that you only need to generate an ECM signal with an amplitude that is equal to the radar signal at the time the radar signal reaches the target,

http://mwrf.com/systems/analyzing-active-cancellation-stealth

Active cancellation stealth is believed to be a smart and adaptive technique that produces a artificial radiation field. Such a field has equal amplitudes and same-frequency, but opposite phase from the target’s scattering field. The enemy radar receiver is always located in the synthetic pattern zero, thereby suppressing the target echo signal received by enemy radar and ultimately achieving stealthy aim.

https://defence.pk/threads/the-rafale-hidden-beauties-and-its-future.422896/#post-8171645

For example, if the radar used a long pulse, to distribute energy over time, and increase its discretion, the detection of return with correlators is equivalent to compress the pulse, as if it was short, and with the same energy.

I know from long ago that I cannot win against 'Chinese physics'. Looks like am not to win against 'Indian physics' as well.

If you do not know what I am speaking of, then it is obvious you will easily dismiss it. This is real world physics.

Why did someone of Revellin-Falcoz's repute claim Rafale's RCS is no different from that of a sparrow? That's no different from the F-22.
http://www.assemblee-nationale.fr/connaissance/cv_brevellinfalcoz.pdf

The US is about 20+ years behind the French in EW. They developed the equivalent of the upcoming American Next Generation Jammer back in the 1990s and discarded it because they said it wasn't effective enough. So it's not a surprise that you are considerably behind the times. You probably retired around the time the French were saying technology the US was yet to develop by 2020 is obsolete.

In fact the French did not even bother to perform SEAD when they started conducting missions over Libya. The American SEAD machinery came in half a day after the French started attacking army units, not SAMs and radars, army units. The Americans offered Growler support to the French and that was rejected.

 

[moon_light]

https://defence.pk/threads/the-rafale-hidden-beauties-and-its-future.422896/page-5#post-8339176
VP of Dassault

Oh funny how it came from Picdelamirand-oil too , isnt that also the guy who claimed to be an expert but actually thought the different between AESA and PESA is that the word passive in PESA stand for staying silent and only listening ?
Btw , how is that video any different from Russian video about Plasma stealth ? easy on theory in practical it a whole different thing

Computers are now able to process hundreds of thousands of different signals simultaneously. We are now capable of predicting the 'future state' of all the collected signals now. The ESM is now capable of predicting t+1 events accurately.

only if the signal stayed the same frequency , same PRF , that not the case even with old radar , let alone modern one

Active cancellation stealth is believed to be a smart and adaptive technique that produces a artificial radiation field. Such a field has equal amplitudes and same-frequency, but opposite phase from the target’s scattering field. The enemy radar receiver is always located in the synthetic pattern zero, thereby suppressing the target echo signal received by enemy radar and ultimately achieving stealthy aim.

what you talking about here is basically destructive interference , nothing special , it based on same principal as cross-eye jamming. The problem is to get destructive interferent , your cancelling signal have to be at the same frequency ,out of phase by half a wavelength ,overlap and on the opposite direction with the radar signal. The problem is if adversary radars have frequency hoping or PRF jitters or pulse compression capabilities ( which all modern radar have ) then good luck predict what frequency their signal would be to produce your "cancelling pulse'' , . And how will you even deal with multiple radar at the same time ? ?

 

[randomradio]

Oh funny how it came from Picdelamirand-oil too , isnt that also the guy who claimed to be an expert but actually thought the different between AESA and PESA is that the word passive in PESA stand for staying silent and only listening ?

Nope. Anyway, he was number 4 in Dassault when he quit the place. He's headed nuclear programs and stuff. He's been into submarine detection, ASMP program etc. There is no higher clearance than what he's had.

what you talking about here is basically destructive interference , nothing special , it based on same principal as cross-eye jamming. The problem is to get destructive interferent , your cancelling signal have to be at the same frequency ,out of phase by half a wavelength ,overlap and on the opposite direction with the radar signal. The problem is if adversary radars have frequency hoping or PRF jitters or pulse compression capabilities ( which all modern radar have ) then good luck predict what frequency their signal would be to produce your "cancelling pulse'' , . And how will you even deal with multiple radar at the same time ? ?

Nope. That's not an issue.

The ESM is now capable of predicting t+1 events accurately.

I've asked all these questions two years ago. You can jitter and compress all you want, it won't change things very much.

For example, if the radar used a long pulse, to distribute energy over time, and increase its discretion, the detection of return with correlators is equivalent to compress the pulse, as if it was short, and with the same energy.

 

[That_engineer_guy]

Nope. Anyway, he was number 4 in Dassault when he quit the place. He's headed nuclear programs and stuff. He's been into submarine detection, ASMP program etc. There is no higher clearance than what he's had.

Iam new here but I have been reading Picdelamirand-oil posts for a while, there is no way he worked for Dassault, he is just a guy who happened to read some research papers and know some scientists sounding words and that it, he made some very amateur mistake when he tries to talk technical. Even though i got to admit the guy was quite smart that he always tries to use very convoluted words and talk about advance matter such as TODA and interferometry to make it hard for untrained eye to see that he is basically BS ing. But talk to anyone who know what they talking about for even 2 seconds and he will be busted. Not so surprise that he didn't dare to make account on Keypublishing or F-16 forum, his fraud *** will be exposed so quick it not even funny

Nope. That's not an issue.
I've asked all these questions two years ago. You can jitter and compress all you want, it won't change things very much.
For example, if the radar used a long pulse, to distribute energy over time, and increase its discretion, the detection of return with correlators is equivalent to compress the pulse, as if it was short, and with the same energy

What you just reference doesn't answer moonlight question at all.And it is not physically possible for ESM to predict the future unless the radar have constant characteristics
Btw pulse compression is an ability of radar not ESM, ESM do not compress the pulse because they doesn't transmit. And radar can always used a matched filter to figured out the return from the compressed pulse because it know exactly what frequency that it transmitted, that totally not the case for ESM system

.

 

[randomradio]

Iam new here but I have been reading Picdelamirand-oil posts for a while, there is no way he worked for Dassault, he is just a guy who happened to read some research papers and know some scientists sounding words and that it, he made some very amateur mistake when he tries to talk technical. Even though i got to admit the guy was quite smart that he always tries to use very convoluted words and talk about advance matter such as TODA and interferometry to make it hard for untrained eye to see that he is basically BS ing. But talk to anyone who know what they talking about for even 2 seconds and he will be busted. Not so surprise that he didn't dare to make account on Keypublishing or F-16 forum, his fraud *** will be exposed so quick it not even funny

Dude, his resume is available online, including his real name. He's even posted his pics on forums. On IDF, he's used his actual photo as his avatar, posted pics of his vacation and stuff.

Even Halloweene knows Pic. And everybody knows Halloweene also.

What you just reference doesn't answer moonlight question at all.And it is not physically possible for ESM to predict the future unless the radar have constant characteristics
Btw pulse compression is an ability of radar not ESM, ESM do not compress the pulse because they doesn't transmit. And radar can always used a matched filter to figured out the return from the compressed pulse because it know exactly what frequency that it transmitted, that totally not the case for ESM system
.

The ESM doesn't emit anything. Moonlight claimed jitters and pulse compression can fool ESM.

As for your matched filter analogy, even that's not a problem for the ESM. Basically, ESM receives and processes any signal, including the ones that are obtained from clutter. So it will treat a threat radar signal the same as any other signal. Now you should always remember that radar signals are picked up from far greater distances than the radar's detection range. So it gives time for the ESM to isolate the threat signal from other signals. And the ESM has the ability to differentiate between friendly radar signals and unknown signals, regardless of the platform it is emitted from, ships, Awacs etc, at least in the Rafale's case. This wasn't the case earlier. Offboard sensors can transfer their data over a network too, this includes satellites, so sometimes the threat radar is countered well before the aircraft has reached the battlefield. Which means even the ESM knows the frequency emitted by the threat radar, which is why it creates the same signal, with the same amplitude, but out of phase to cancel it out.

As for prediction algorithms and hardware required, here's one of the devices.
http://www.bzarg.com/p/how-a-kalman-filter-works-in-pictures/

Anyway classic mechanics is going to be irrelevant over the next 5 years.

 

[moon_light]

Dude, his resume is available online, including his real name. He's even posted his pics on forums. On IDF, he's used his actual photo as his avatar, posted pics of his vacation and stuff.
Even Halloweene knows Pic. And everybody knows Halloweene also.

I couldnt care less if he posted his picture or someone picture online or that he posted pic from his vacation, did he posted him sitting in Rafale cockpit with paper showing his name ? No , did he posted him in an anechoic chamber with a paper showing his name ? No. like engineer guy said he is nothing but a fraud.
And dont even make me started on Halloween, the guys who is so infamous in keypub for coming up with so many so called "pilot story" without any actual evidence to back them up. In IDF people may respect him but in Keypub , he got shut down so quick right after he post anything.

The ESM doesn't emit anything. Moonlight claimed jitters and pulse compression can fool ESM..

I claimed that frequency hopping , and PRF jittering along with pulse compression will make active cancellation pretty useless because you cant really predict something that can literally be programmed to have no pattern, and there is also problem of multiple radars from different direction looking at the rafale at the same time how does active cancellation deal with that then ?

As for your matched filter analogy, even that's not a problem for the ESM. Basically, ESM receives and processes any signal, including the ones that are obtained from clutter. So it will treat a threat radar signal the same as any other signal. Now you should always remember that radar signals are picked up from far greater distances than the radar's detection range. So it gives time for the ESM to isolate the threat signal from other signals.

Yes i know ESM can pick up radar signal from longer distance because reflection to radar have to travel 2 ways. But here is your problem : a radar will always know what frequency and direction that it send it's pulse away so it can use a matched filter that mean much better processing gain , how can your ESM distinguished between let say pulse from ground radar and airborne radar terrain bounce pulse ? not so simple now isnt it

And the ESM has the ability to differentiate between friendly radar signals and unknown signals, regardless of the platform it is emitted from, ships, Awacs etc, a

Threat library is nothing new , even ALR-67 , ASQ-213 have them , point is the system that being observed still need to have a unique characteristics that are recognizable like frequency or PRF or scan pattern , which is not exactly the case for modern radar.

Which means even the ESM knows the frequency emitted by the threat radar,

That will only be the case if the operating frequency of radar constant , it isnt

As for prediction algorithms and hardware required, here's one of the devices.
http://www.bzarg.com/p/how-a-kalman-filter-works-in-pictures/
.

You havent read it careful enough

You can use a Kalman filter in any place where you have uncertain information about some dynamic system, and you can make an educated guess

Kalman filtering, also known as linear quadratic estimation (LQE), is an algorism that uses a series of measurements observed over time, containing statistical noise and other inaccuracies, and produces estimates of unknown variables that tend to be more precise than those based on a single measurement alone

Kalman filter doesnt actually see the future , it make a guesstimate of what will happen based on the information that it have , that work again kinematic events or systems with a fixed pattern characteristics , not again something that can literally be programmed to be completely random like frequency hopping or PRF , and to do active cancellation you need to know exact frequency and phase of the reflection , a simple guesstimate will not do.

 

[randomradio]

@gambit @moon_light @That_engineer_guy

Some new stuff.

http://www.phodir.eu/phodir/file/presentation.pdf

 

[That_engineer_guy]

Some new stuff.

@Radio :No where does it say this new system can see thounsands km aways or look inside aircraft weapons bay or that it doesn't following normal physics

 

[randomradio]

@Radio :No where does it say this new system can see thounsands km aways or look inside aircraft weapons bay or that it doesn't following normal physics

This is a radar system that works using a photonics hardware. It talks about how advanced even classic mechanics systems have become.

There are basically three issues with a quantum radar 'today', meaning the ones that are publicly known, one is a single photon detector in the microwave band, cryogenics and a quantum memory so an idler photon can survive much longer periods of time. But to get to this, first you need a photon-based circuit, a 'photonic' circuit which can talk directly to photons. Right now, the photons excite electrons and we use these electrons to generate data in an 'electronic' circuit.

Just like classic mechanics antennas jumped from mechanical scan to PESA to AESA, photonics based radars will have to go through a similar process. The above radar can be installed with a microwave and optical cavity as a block upgrade, which the Russians are known for doing. Until then it will work as a classic mechanic system and will still deliver extremely high performance, including extremely high resolution images at very long ranges, which current radars cannot.

If you look at the one of the panels in the link, you will notice that you can have this radar work from 400MHz to 50GHz. This isn't an ordinary radar, it's combined all known radars into one single system. You can now have OTH radar performance in a fighter aircraft with this hardware. This radar can be made to work from 1Hz all the way up to terahertz. The presentation talks about signal generation in the terahertz too.

The hardware above is open source data, so how far ahead do you think they are when it comes to confidential aspects of that system? This is the military we are talking about.

 

[randomradio]

@Radio :No where does it say this new system can see thounsands km aways or look inside aircraft weapons bay or that it doesn't following normal physics

http://kret.com/en/news_and_media/press_releases/3654/
Photonics is in fact an analogue of electronics that uses instead of electrons the quanta of the electromagnetic field of the optical frequency - photons. Radiophotonics is part of nanophotonics, which studies the directional interaction of optical waves with nanostructures, while radiophotonics studies the directional interaction of optical waves, modulated by radio frequency in the specialized nanostructures and allows to create radio frequency devices with parameters that are unattainable for traditional electronics, because photons, unlike electrons, do not have stationary or charge mass, which provides for potentially ultra-high performance and unique noise immunity.

In the long term, use of radio-optic phased array antennas (ROFAR) will provide an opportunity to build a network of unique synchronized space-and ground-based radio telescopes, as well as cover the fuselage of airplanes and helicopters with a new "smart" plating.

Far more information here.
http://rbth.com/defence/2016/01/21/...ighter-can-detect-any-stealth-aircraft_561275
“In practice, this means that ROFAR can produce a detailed 3D image of what is happening hundreds of kilometers away,” said Vladimir Mikheyev, advisor to KRET's first deputy CEO. “For example, at 400 kilometers it can not only see a person, but even recognize their face.”

I've only posted parts of the articles.

 

[That_engineer_guy]

This is a radar system that works using a photonics hardware. It talks about how advanced even classic mechanics systems have become.

There are basically three issues with a quantum radar 'today', meaning the ones that are publicly known, one is a single photon detector in the microwave band, cryogenics and a quantum memory so an idler photon can survive much longer periods of time. But to get to this, first you need a photon-based circuit, a 'photonic' circuit which can talk directly to photons. Right now, the photons excite electrons and we use these electrons to generate data in an 'electronic' circuit.

Just like classic mechanics antennas jumped from mechanical scan to PESA to AESA, photonics based radars will have to go through a similar process. The above radar can be installed with a microwave and optical cavity as a block upgrade, which the Russians are known for doing. Until then it will work as a classic mechanic system and will still deliver extremely high performance, including extremely high resolution images at very long ranges, which current radars cannot.

If you look at the one of the panels in the link, you will notice that you can have this radar work from 400MHz to 50GHz. This isn't an ordinary radar, it's combined all known radars into one single system. You can now have OTH radar performance in a fighter aircraft with this hardware. This radar can be made to work from 1Hz all the way up to terahertz. The presentation talks about signal generation in the terahertz too.

The hardware above is open source data, so how far ahead do you think they are when it comes to confidential aspects of that system? This is the military we are talking about.

No where does it say you can have OTH at microwave wavelength or that you can overcome things like directivity and attenuation problem, in fact this "photonic radar" seem to have lower gain than normal radar. The only major advantage that they talk about is wide bandwidth, and that it but various kind of antenna can have wide band width For example horn antenna. I dont want to be rude but i feel like you deeply misunderstood what they said because you don't really understand how radar and electromagnetic behave

Photonics is in fact an analogue of electronics that uses instead of electrons the quanta of the electromagnetic field of the optical frequency - photons. Radiophotonics is part of nanophotonics, which studies the directional interaction of optical waves with nanostructures, while radiophotonics studies the directional interaction of optical waves, modulated by radio frequency in the specialized nanostructures and allows to create radio frequency devices with parameters that are unattainable for traditional electronics, because photons, unlike electrons, do not have stationary or charge mass, which provides for potentially ultra-high performance and unique noise immunity.

In the long term, use of radio-optic phased array antennas (ROFAR) will provide an opportunity to build a network of unique synchronized space-and ground-based radio telescopes, as well as cover the fuselage of airplanes and helicopters with a new "smart" plating.

They didn't said it can see through aircraft fuselage, they said it have applications in smart skin ( aka ESA radar in the form of skin like on the TRRS)

Far more information here.
“In practice, this means that ROFAR can produce a detailed 3D image of what is happening hundreds of kilometers away,” said Vladimir Mikheyev, advisor to KRET's first deputy CEO. “For example, at 400 kilometers it can not only see a person, but even recognize their face.”

I've only posted parts of the articles.

I have read this article before, and to be frank with you, it is a propaganda piece that was written by a moron who does not have the slightest idea of how electromagnetic and radar work , give it to any physics professor or radar engineers and they will just laugh at it. It sad how the quality of journalism is so low nowadays

 

[randomradio]

No where does it say you can have OTH at microwave wavelength or that you can overcome things like directivity and attenuation problem, in fact this "photonic radar" seem to have lower gain than normal radar. The only major advantage that they talk about is wide bandwidth, and that it but various kind of antenna can have wide band width For example horn antenna. I dont want to be rude but i feel like you deeply misunderstood what they said because you don't really understand how radar and electromagnetic behave

I think you are just looking at bits and pieces of this system and making the wrong assumptions. Where does it say this radar has a lower gain? Is this your assumption?

You will have to look at the entire system. 20x resolution increase over a modern AESA, significantly higher beam steering and higher reliability, significantly lesser cooling. And we are talking about generating all the way from 1Hz to terahertz within just one system. The Horn antenna can do no such thing.

I dont want to be rude but i feel like you deeply misunderstood what they said because you don't really understand how radar and electromagnetic behave

I know perfectly well how a radar and electromagnetic waves behave. But you are going to have to dump most of your knowledge in classic mechanics and look at quantum mechanics. And this isn't propaganda either, it's official information.

Check this:
http://kret.com/en/news_and_media/press_releases/3654/

while radiophotonics studies the directional interaction of optical waves, modulated by radio frequency in the specialized nanostructures

This quote is from KRET. It's not written by a journalist. And in a quantum radar, you are modulating radio frequency with optical waves. That's how you get the probe beam and idler beam. The probe beam is transmitted and the idler beam stays back in the radar waiting for the probe beam to return. The probe beam is in the microwave frequency and the idler beam is in the optical frequency.

You will have to start brushing up on quantum physics now.

They didn't said it can see through aircraft fuselage, they said it have applications in smart skin ( aka ESA radar in the form of skin like on the TRRS)

So this radar can do facial recognition from 400Km away, but can't do something as simple as looking through the fuselage?

I have read this article before, and to be frank with you, it is a propaganda piece that was written by a moron who does not have the slightest idea of how electromagnetic and radar work , give it to any physics professor or radar engineers and they will just laugh at it. It sad how the quality of journalism is so low nowadays

KRET design and develops radars for the entire Russian armed forces. The information came directly from them.

If the Physics professor knows quantum mechanics, he won't laugh. And radar engineers have no clue because this radar will be the first in the world.

Let me get much better information for you, though. There's better stuff written by KRET themselves.

 

[randomradio]

I have read this article before, and to be frank with you, it is a propaganda piece that was written by a moron who does not have the slightest idea of how electromagnetic and radar work , give it to any physics professor or radar engineers and they will just laugh at it. It sad how the quality of journalism is so low nowadays

I think official websites and interviews are better sources, right?

First, about KRET.
http://kret.com/en/about/

http://kret.com/en/news/10246/
Vladimir Mikheev, Advisor to First Deputy CEO, KRET,

– You mentioned radio photonics technology KRET is working on. Could you please elaborate on this technology and its applications?

Right now a new technology revolution is coming. Radio photonics is going to be one of the key drivers. Its significance can be equal to the impact of microelectronics during the 1970s technology transition.

A ROPAA generates a detailed 3D image of an object being hundreds of kilometers away. For instance, at a 400 km range we can not only see a person, but identify his or her face. Whatever jamming may present, we will find a transparency window with no interference, and will see over the horizon.

As you understand, this project will significantly undermine the stealth technology so popular across the pond today.

– What will it be implemented?

The total R&D span is 4.5 years. It’s been a year so far. In three years we will present a prototype to prove the concept. After that we will work on its serial production and integration with the existing and new generation vehicles.

http://kret.com/en/news/10249/

A new technology from KRET will replace ship antennas with a radar

Surface ships and submarines can be equipped with ROPAA radars

Radio optical phased array antennas (ROPAA) make ship electronics 5-7 times smaller. One advanced radar will replace all the antennas currently deployed. KRET is developing such a radar in Russia.

Radio optical phased array antennas greatly expand the capabilities of modern-day communication tools and radars. The resolution will increase by a factor of tens. A modern radar gas a 10 GHz frequency (3 cm wavelength) and a 1…2 GHz bandwidth while a ROPAA radar uses the 1 Hz…100 GHz bandwidth concurrently. It means that a ROPAA radar generates a detailed 3D image of an object being hundreds of kilometers away. For instance, at a 400 km range we can not only see a person, but identify his or her face.

“Navy ships will be equipped with this technology for sure. Their radar stations will be ROPAA radars. Modern warships carry enormous amount of antennas and radars, each operates in a single bandwidth. Just one ROPAA radar can replace them all since it is a broadband antenna. We estimate that the equipment will be 5-7 times smaller“, Vladimir Mikheev, Advisor to First Deputy CEO, KRET, told the media.

He also stated that in the future the ROPAA technology will be used on the newest submarines. “It is quite possible that we can see underwater as well. We are considering the technology’s applications as submarine sonars”, Mr. Mikheev noted.

Let us remind that KRET has already established a radio photonics lab to work on the ROPAA project, ad has launched the lab research.

http://kret.com/en/news/4057/
Igor Nasenkov, First Deputy CEO of KRET

- Tell us, what capabilities do KRET’s latest electronics systems provide to the fifth-generation PAK FA aircraft?

KRET has already discussed the capabilities of the Himalaya electronic warfare system and the strapdown inertial navigation system (SINS) installed on the PAK FA. Now we want to draw attention to a new radar system that has been designed for the PAK FA. This radar works on several levels. It scans not only the forward-facing hemisphere, but also has the capabilities to conduct 360-degree scans, so that the pilot has complete information about his radar environment without having to maneuver to the left, right, or rear to see what else is going on him. This information is automatically projected onto the pilot’s helmet and the interactive window in the cabin.

For example, at certain points, the Himalaya electronic warfare system uses the energy resources of radar for effective defense. All of this ensures that the aircraft can monitor 360-degree space in passive and active modes and provide total protection so that communications, control, and electronic warfare systems cover the entire area.

- How is KRET’s research progressing in the field of radio photons in order to create a radio-optical phased array antenna (ROFAR)? What has been achieved?

Photonic technology greatly expands the possibilities of modern communication and radar, reducing their weight by more than half, and improving resolution tenfold.

KRET has already begun laboratory research on radio photons in an effort to develop ROFAR for its next-generation radar, which will lead to fundamentally new performance characteristics, including the possibility of radar “sight.”

By 2018 KRET should be able to unveil a sample of the full-scale radar.

http://kret.com/en/news/3768/

for example, take ground-based radar. Today, this radar is the size of a multi-story home, but using microwave photonics, the station can be installed on a standard KAMAZ truck. The effectiveness and range of the radar would be exactly the same, namely thousands of kilometers. Several of these mobile and small radar systems can be networked, which will only increase their characteristics.

Now that everything is from KRET's official website and quotes high ranking people, is it more believable now?

@moon_light @gambit
Translated
http://ria.ru/defense_safety/20151230/1351540463.html

"ROFAR will allow us to see the plane, located 500 kilometers away, as if we are standing 50 meters away from him at the airport, his portrait in the baseband. In addition, if needed, this technology will look in the aircraft itself, to know what kind of people and equipment it contains, as the signal can pass any obstacles, even lead meter wall, "- said Mikheyev told reporters.

 

[That_engineer_guy]

I think you are just looking at bits and pieces of this system and making the wrong assumptions. Where does it say this radar has a lower gain? Is this your assumption?

No it is not my assumption, they did have an example in the paper that you cited, and in that example the gain of the photoelectric system is lower than normal system

You will have to look at the entire system. 20x resolution increase over a modern AESA,

Alright radio, you cant just keep making things up as you feel like it, It is very childlike and exposed your lack of knowledge , there is no such thing as "this system will have 20 times current AESA resolution" , because the resolution of any radar has alot to do with its aperture size and operating frequency, there is no such thing as a uniform AESA or PESA radar resolution. And just because a system is AESA or PESA doesn't mean it will have higher resolution than parabolic antenna.

significantly higher beam steering

Higher beam steering how? when the limit for current beam steering is the speed of the pulse? (aka speed of light)

And we are talking about generating all the way from 1Hz to terahertz within just one system. The Horn antenna can do no such thing.

Dont confuse between the feed and the antenna.

I know perfectly well how a radar and electromagnetic waves behave.

No offense but all the evidence to the contrary

But you are going to have to dump most of your knowledge in classic mechanics and look at quantum mechanics.

Just because you said the word."quantum mechanics " doesn't mean you can by past all physical barrier. Do you actually understand how they work at all?

And this isn't propaganda either, it's official information.

No it isn't. The common theme for propaganda pieces is that they all have a bunch of scientific sounding words thrown together but lack basic understanding of how stuff work


and it didn't talk about "400 km facial recognition

This quote is from Kret. It's not written by a journalist.

Look at the place where they have the" ", and the place where they dont, the 400 km facial recognition is totally a bunch of BS made up by the journalist

And in a quantum radar, you are modulating radio frequency with optical waves. That's how you get the probe beam and idler beam. The probe beam is transmitted and the idler beam stays back in the radar waiting for the probe beam to return. The probe beam is in the microwave frequency and the idler beam is in the optical frequency.

As long as the beam is electromagnetic wave (which optical frequency included) then they will obey normal physics.

You will have to start brushing up on quantum physics now.

My uni degree was in physics. If you think i didn't understand quantum physics then you are badly mistaken

So this radar can do facial recognition from 400Km away, but can't do something as simple as looking through the fuselage?

It is not in any way related to each other. To see through the fuselage you need your beam to penetrate metal, to see object at 400 km you need very high power. To do facial recognition you need narrow beam width ( extremely high frequency or aperture)

KRET design and develops radars for the entire Russian armed forces. The information came directly from them.

I dont care, this is the same as the nonsense about plasma stealth

If the Physics professor knows quantum mechanics, he won't laugh. .

Yes he will, i bet, because of how ridiculous it is

And radar engineers have no clue because this radar will be the first in the world.
.

You would be surprised at how much physics a radar engineer know

I think official websites and interviews are better sources, right?
Now that everything is from KRET's official website and quotes high ranking people, is it more believable now?

No it isn't, not a slightest. It is just very ridiculous to say the least, you know what will make it more believable?, if you can post a link explaine the physics of how can this system do 400 km facial recognition ( and i mean actual explanation like moonlight links, not explanation in the form of oh it is quantum so physics dont apply)