China introduced a new radar with AFAR

Radars with an active phased array antenna (AFAR) are becoming the norm even for relatively inexpensive fighters. According to the defenseworld.net portal, the China Electronics Technology Group Corporation (CETGC) Research Institute presented the new KLJ-7A radar for fighter-bombers FC-1 Xiaolong (JF-17 Thunder).

Radar KLJ-7A.

The CETGC claims that the KLJ-7A has similar characteristics to the radar used in the fifth-generation American fighter F-35. Using the new radar, the JF-17 will be able to detect targets at a distance of up to 170 km and will have a combat advantage over the F-16 C / D and F-15 C / D fighters of the basic versions (not equipped with AFAR radars).

JF-17 Thunder - Sino-Pakistani fighter-bomber

FC-1 Xiaolong, which is in service with the Pakistan Air Force under the name JF-17 Thunder, is a fighter-bomber of Chinese-Pakistani development. The plane made the first flight in the 2003 year and four years later entered the service of the Pakistani army, reports "Warspot"

Comments

[NEXUS]

And we are all waiting for the 20th year of ROFAR ... while the SU-30/35 is still the PFAR ...

[corporal]

Quote: NEXUS

And we are all waiting

But you can already buy from the Chinese like down jackets ... wagons.

[NEXUS]

Quote: Corporal

But you can already buy from the Chinese as down jackets ... wagons.

Yes, we have ZhUK-A and Squirrel ... just our developers are not in a hurry to equip the 35th and 30th AFARs. Apparently they are really waiting for a serial ROFAR.

[ZVO]

Quote: NEXUS

Yes, we have both ZHUK-A and Squirrel ...

We have neither Beetle nor Squirrel.
Not a single combat aircraft is equipped with them.
Do not lie to yourself or to others.

Our words are like the words of a teenager proving to everyone that he has a pension.
It can and will be, in 30 years ...
But now he has only his father's and mother's money.
Is the analogy clearly explained?

[voyaka uh]

By the way, yes. China has built a radar factory. As usual, it’s huge.
The production of modules (elements) is put on stream.
And the price will drop significantly. There are such modules for every AFAR radar
from several hundred to several thousand.
I do not exclude that China will begin to sell modules to everyone.

[venik]

Quote: voyaka uh

I do not exclude that China will begin to sell modules to everyone.

===========
Well, it’s hard to disagree with this ..... Although China itself purchases “microchips” in Russia ...... Yes, yes !!!

[prosto_rgb]

Quote: NEXUS

And we are all waiting for the 20th year of ROFAR ... while the SU-30/35 is still the PFAR ...

Who else on the fingers would explain how ROFAR will surpass AFAR by an order of magnitude

[NEXUS]

Quote: prosto_rgb

Who else on the fingers would explain how ROFAR will surpass AFAR by an order of magnitude

The Radioelectronic Technologies Concern completed the development and manufacture of a test bench for the study and measurement of the characteristics of the radio photon element base, radio photon devices and transmit-receive modules (PPM) and the creation of a mock-up of radio-photon devices ROFAR. The ROFAR project is planned to be completed in 2019 after five stages of development work.

The mock-up of the radiofoton transmitting path (PPM) ROFAR is completely built on the domestic key radiophotonic elements developed during the stage. The layout demonstrates the practical implementation of the principle of photon generation with modulation by an RF signal, as well as effective photovoltaic detection, followed by transmission of powerful nanosecond pulses over a radio path in a wide range of repetition frequencies.

The use of radio-phased phased array antennas (ROFAR) on the ship will reduce the overall dimensions of electronic equipment by 5-7 times. Radio-optical phased antenna arrays will significantly expand the capabilities of modern communications and radars - their resolution will increase tenfold. If a modern locator has a radiation frequency of 10 GHz, 3 cm with a spectrum width of 1-2 GHz, then in ROFAR this frequency can be from 1 Hz to 100 GHz at the same time. In practice, this means that ROFAR can provide a detailed, three-dimensional image of what is happening at a distance of hundreds of kilometers from it. For example, at a distance of 400 km, you can not just see a person, but recognize his face.
The carriers of this technology will be naval platforms, in particular radar stations of ships. In the future, ROFAR technology will be used on submarines of the latest projects.
The ultra-wide bandwidth of the ROFAR signal allows you to get a practically television image in the radar range. The technology of radio photonics, in particular, should open up new opportunities for improving the “smart skin” on Russian helicopters and aircraft of the latest generation.

According to the adviser to the first deputy general director of KRET V.G. Mikheev, ROFAR will allow us to see a plane 500 kilometers away, as if we were standing 50 meters from it at the airport, his portrait in the video range.

[corporal]

Quote: NEXUS

The carriers of this technology will be naval platforms, in particular radar stations of ships

From your link it follows that ROFAR is bulky enough to put it on airplanes, or is the information incomplete?

[NEXUS]

Quote: Corporal

From your link it follows that ROFAR is bulky enough to put it on airplanes, or is the information incomplete?

No ... it will be 5 times smaller than the AFAR ...

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[voyaka uh]

ROFAR is a radar based on the sending of laser pulses
instead of electromagnetic waves.
Roughly speaking: thousands of laser beams are "fired" by pulses into space
and "scan" the object. Comp processes data.
Question: how KRET, which could not create a relatively simple fiber-optic laser
with a couple of dozens of rays, brought to the target, will be able to cope with thousands?
It seems to me - another bluff.

[alean245]

ROFAR is a radar based on the sending of laser pulses
instead of electromagnetic waves.
Roughly speaking: thousands of laser beams are "fired" by pulses into space

Wrong. ROFAR is the same AFAR, only with an optical distribution scheme, i.e., the optical radiation source is modulated by a radio frequency signal, the optical signal modulated by a radio signal is further divided between many optical transmission lines (planar dielectric waveguides, optical fibers or photonic crystal waveguides). The signal from each transmission line is fed after the spectrum is transferred to the radio frequency region and amplified by the radiating element and is radiated into space at the radio frequency.

Question: how KRET, which could not create a relatively simple fiber-optic laser
with a couple of dozens of rays, brought to the target, will be able to cope with thousands?
It seems to me - another bluff.

What needs to be done there, when it seems, according to one aphorism?

[voyaka uh]

"The signal from each transmission line is fed after the spectrum is transferred to the radio frequency region and amplified by the radiating element and radiated into space at the radio frequency." ///

What radio frequency? Centimeter?
If the only difference is that simply the copper wires (in your words) are replaced by optical fibers, then what is the novelty of the matter?

[alean245]

What radio frequency? Centimeter?

Arbitrary UHF, microwave or EHF range.

If the only difference is that simply the copper wires (in your words) are replaced by optical fibers, then what is the novelty of the matter?

Read the Nexus comment carefully

The use of radio-phased phased array antennas (ROFAR) on the ship will reduce the overall dimensions of electronic equipment by 5-7 times. Radio-phased phased array antennas will significantly expand the capabilities of modern communications and radars - their resolution will increase tenfold. If a modern locator has a radiation frequency of 10 GHz, 3 cm with a spectrum width of 1-2 GHz, then in ROFAR this frequency can be from 1 Hz to 100 GHz at the same time. In practice, this means that ROFAR can provide a detailed, three-dimensional image of what is happening at a distance of hundreds of kilometers from it.

And not in my words:

Radio-optical antenna arrays / Voskresensky, D. I.; Grinev, A.Yu. ; Voronin, E.N. Place of publication: Moscow: Radio and Communications Year of publication: 1986

[voyaka uh]

We, in my opinion, are talking about completely different devices:

What is photonic radar technology? Specifically, radio optical phased array antenna aka ROFAR?
I translate:
What is photon radar technology? In particular, the radio optical phased antenna - ROFAR?

Photonic radar is in its rudimentary stages of development. [Jan 22, 2016] They use laser pulses for detection instead of conventional EM waves.
This helps in better tracking of objects especially with the speed calculation of moving objects

"They use laser pulses for detection instead of conventional EM waves."
I translate:
they use laser pulses to detect [objects]
INSTEAD of ordinary electro-magnetic waves.

[alean245]

INSTEAD of ordinary electro-magnetic waves.

There is already an established term for the name of this technology - lidar. Have you ever wondered why the word "radio" is in the abbreviation ROFAR? By the way, what the Americans write about why ROFAR is needed:

NEED OF A PHOTONIC RADAR!
The next generation of radar (radio detection and ranging) systems needs to be based on software-defined radio to adapt to variable environments, with higher carrier frequencies for smaller antennas and broadened bandwidth for increased resolution. Today's digital microwave components (synthesizers and analogue-to-digital converters) suffer from limited bandwidth with high noise at increasing frequencies, so that fully digital radar systems can work up to only a few gigahertz, and noisy analogue up- and downconversions are necessary for higher frequencies. In contrast, photonics provide high precision and ultrawide bandwidth, allowing both the flexible generation of extremely stable radio-frequency signals with arbitrary waveforms up to millimetre waves, and the detection of such signals and their precise direct digitization without downconversion.

So maybe in the sentence

They use laser pulses for detection instead of conventional EM waves. "

I meant the detection of the received radio signals, and not the detection of objects.

[voyaka uh]

That is, you think that ordinary centimeters are sent
radio waves, but the reception with laser pulses
(although I don’t understand how) and processing using optical fibers?
How would it just be an improved, more compact AFAR?
This is what KRET does, not lidar. Then I admit that they are not bluffing.

[Genry]

Modern computing technology allows, based on the amplitude-phase information taken from the antenna array, to build a three-dimensional image of objects in the field of view. As in the human eye, but with a mathematical focusing system. And the wavelength determines the resolution of the system. Centimeter waves, for example, will give an appropriate resolution.

[prosto_rgb]

Thank you
Judging by the description, an analogue of a conventional video camera should turn out, but working in the radio range?

[Sergey53]

Chinese hackers do not disdain anything. Because they already have.

[prosto_rgb]

China introduced a new radar with AFAR

What is there to say?
There is nothing to say here.
If someone is suddenly not up to date and the 5th generation fighter they have already taken into service and are riveting a series.

[PalBor]

Quote: prosto_rgb

China introduced a new radar with AFAR

What is there to say?
There is nothing to say here.
If someone is suddenly not up to date and the 5th generation fighter they have already taken into service and are riveting a series.

Is he really the 5th? Or do the Chinese say that?

[prosto_rgb]

Quote: PalBor

Is he really the 5th? Or do the Chinese say that?

Well, not the Indians

[just exp]

Well, the fifth generation can be called a stretch.

[NEXUS]

Quote: prosto_rgb

If someone is suddenly not up to date and the 5th generation fighter they have already taken into service and are riveting a series.

They are the same 5 generation as the MIG-29 of the first assembly. Dviguns have a ridiculous resource and I doubt very much that they provide cruising supersonic without afterburner.

[prosto_rgb]

Quote: NEXUS

Quote: prosto_rgb

If someone is suddenly not up to date and the 5th generation fighter they have already taken into service and are riveting a series.

They are the same 5 generation as the MIG-29 of the first assembly. Dviguns have a ridiculous resource and I doubt very much that they provide cruising supersonic without afterburner.

Yes
but the question is not that, but that it is already series and armed
and such a resource is enough for staff training, even though you cannot envy repairmen
for operations with an equal adversary - it is unlikely that the aircraft will have enough time to fly so much as to dislodge even a meager resource

[kos2910]

Quote: prosto_rgb

What is there to say?

Maybe they put their engines on it?

[prosto_rgb]

Quote: kos2910

Quote: prosto_rgb

What is there to say?

Maybe they put their engines on it?

unequivocal is difficult to say now
The prototypes were both Shenyang WS-10G and Saturn AL-31F-M2
They are going to put Xian WS-15 on the production ones; at the parade dedicated to the 90th anniversary of the PLA, it seems that the J-20 three flew with them.
But previously they planned to buy 100pcs with Saturn AL-31F-M2.

[Isstiqlal]

Now you can buy a JF-17. Desirable 3 dozen. You can hang Turkish SOM to it.

[donavi49]

Well, the plane is not bad. One RD-93 engine. 6 (7 if instead of PTB to put the target load - a bomb, a container) - pylons. Any weapon - from V-V SD missiles to free-falling and guided bombs. Wide support for any external devices (containers). Glass cabin. Great onboard automation. A bunch of all sorts of options (real-time data transfer rate).

And all this for 25 million dollars in the homeless version and 38 million in Block3 (with AFAR and a bunch of improvements).

[voyaka uh]

Genry,
There are no disputes about computing equipment. She knows how to translate signals in 3-D without problems.
We found out whether it is possible with the help of optics - a laser, photons - to obtain information about an object 100 km from us.
Or just using radio waves.
And what is ROFAR - what does it send: radio waves or laser pulses.
And what accepts and how.

[utyutkin]

understand deeply respected Henry in order to understand what rofar is, how it works and why broadband is needed you should have at least a university degree in radiophysics! To be honest, in the West there are practically no specialists of this profile :) so you will not be alone. In general, do not strain too much and most importantly do not forget the classic! - born to crawl will not fly! and don’t even try to understand from the publicakakacii on the Internet what it is. because, as I wrote to you, it just doesn’t shine :) this is firstly and secondly those who write these cacakations themselves do not understand what it is :). so eat kosher matzo and go to bed. :)

[APASUS]

The CETGC claims that the KLJ-7A has similar characteristics to the radar used in the fifth-generation F-35 American fighter.

This phrase in the text looks a little strange. Whom did the Chinese “heat” this time, really the Americans?

[voyaka uh]

Yes. They hacked the F-35 project 10 years ago. What exactly was stolen is unknown. But maybe radar too.

[APASUS]

However, experts

[Tsoy]

Quote: voyaka uh

They hacked the F-35 project another 10 years ago.

Yep According to the most optimistic forecasts, they stole up to 10 TB of information.