Radar System to Detect F-22 fighter: Development in progress

[Lankan Ranger]

Radar System to Detect F-22 fighter: Development in progress

Omni-directional radar warning system to alert pilots have been locked pursuit of missile systems, this equipment is very useful. In the early-the-horizon air combat, many targets have been hit by a missile when the machine did not know what happened because it did not receive a warning or simply no set of equipment.

If there is omni-directional radar warning and played a role in the target machine to make at least know to avoid, out of action, the measures taken to interfere with, ultra-horizon air combat power will be greatly reduced. Fighting in the development of the Chinese military planes for the F22 when the anti-stealth radar warning system has made significant progress.

It is said that the old U.S. Air Force F-15, F-16 can not lock on the F-22A alarm led to the F-22A simulated aerial combat 144:0, 241:2 results. The U.S. Navy and Air Force rivalry is, F/A-18 will be able to make an effective warning, said to have thus also simulated air combat "kill" of an F-22A. Therefore think that the old U.S. Navy F-22A found a trick to deal with, they claim that EA-18 is entirely possible to eat set F-22.

All U.S. Navy does not go into details about whether or bragging, but their reasoning at least plausible explanation. If a Chinese F-7 able to F-22A locking alarm, although it probably cannot be said that you can reverse the situation, but it can increase the air of uncertainty.

An F-22 containing the bomb was a few, and contains a number of oil is, if the F-22 in order to eliminate an F -7 to Kuangzhui one or two hundred kilometers, fired three, four missiles, then the combat effectiveness of his is being reduced.

In fact, the old America's F-22 is also aware of this truth. His passive receivers Alarm System ALR-94 feature is very powerful, APG-77 radar, stealth can be achieved, that is, to track the F-22 occurred in the possibility of radar detection of its position as one in a million.

This possibility is not without. In this world, no unable to crack the ultimate technology, that does not comply with dialectics. If the F-22A to do this, then he opened up a new era in human history of philosophy, and unfortunately he could not.

F-22A on the expression of such self-contradictory, on the one hand, APG-77 is so advanced RF management is almost impossible to detect on the other hand, ALR-94 radar warning receiver is so powerful, completely may miss any radar detection, this paradox explains everything just are no absolutes.

Judging from the current situation, intercept F-22A's radar signal and make a timely warning, is a national anti-stealth technology development.

Previously, countries could not find out the radar stealth F-22 to do the tricky and radar technology, which has a relationship to the level of development. This is like World War II, if engaged in less than ENIGMA cipher machine, then the password is difficult to decipher German. Now, the countries active phased array radar technology matures, narrowing the gap with the United States, on this basis, is gradually being worked out related to omni-directional radar warning system.

Further, if this radar, the development of omni-directional warning to the United States ALR-94 level, you can combine the optical detection of the F-22 implementation of striking back.

Alarms for the F-22A technology development to what extent, in all countries are confidential, and that the outside world is not easy to detect. Saw the EA-18G the United States itself has such a capacity, a wind gust of France, Europe's EF-2000 from a technical point of view a very strong indicator.

In this regard, the old United States is also a guilty conscience and a variety of models with other countries to confront the exercise, in addition to showing off there thoroughly meaning.

In this respect, China is also more or less said to have made a little progress. Since the bet made four generations of machines, whether talking about the other Jian Shi B, or a few, I think, have the right F-22A radar warning is a fundamental capability.

China Arsenal: Radar system to detect F-22 fighter: development in progress

 

[DV RULES]

Information about Tamara anti-stealth radar

Possible Foreign Sources of Stealth and Counter Stealth Technology

While it is not new technology, the development of radar evading stealth as well as counter-stealth technology remain critical elements of future warfare. PRC expert Cao Benyi has stated, “…it is necessary for China to make every effort to develop stealth technology, to develop stealth, and to do what is necessary to enable China’s stealth technology to catch up with the world’s most advanced level of such technology in a short time.” As Cao suggests, the PRC is investing heavily in stealth and counter-stealth technology. At the 1998 Zhuhai Air Show the Chinese company Seek Optics revealed its work on coatings designed to deflect radar energy, and on computer programs for aiding the design of stealthy objects. By using imported supercomputers and commercial “finite element analysis software,” the PRC is believed to be able to calculate the radar reflectivity of shaped objects. There are also reports that China may apply stealth coatings to improve the penetrating capability of combat aircraft like the Xian JH-7 strike fighter. Stealth coatings will also likely be used to improve the capabilities of future land-attack cruise missiles. A 2001 report cited a Pentagon source as estimating the PLA would have a stealthy cruise missile operational in 2003.
The PLA is already demonstrating its ability to apply stealth technology. In 2002 and 2003 the PLA demonstrated its application of stealth principles to naval warship design in three stunning new ships, the No. 168 and No. 170 class air defense destroyers and a new “Type 054”frigate. With very smooth hull sides and an application of radar-absorbent materials, these ships could prove to be nearly as stealthy as Taiwan’s French-made LAFAYETTE-class frigates. In fact, Taiwanese authorities investigating corruption charges surrounding the sale of the French frigates believe that France gave the PRC classified data on the LAFAYETTE frigate to mollify its opposition to the sale. Russia is another potential source for naval stealth technology given the PLA’s relationship with Russia’s naval builders. Russia has experience in building stealthy ships such as the Project 17 Talwar class frigates for India, and in 2003 unveiled its even stealthier Project 20830 destroyer.
The PLA is also applying stealth concepts to combat aircraft. At the 2002 Zhuhai Airshow, a new stealthy advanced air-superiority fighter concept was revealed briefly in a promotional video. Thought to be a product of the Shenyang Aircraft Corporation, this design features a chiseled nose, flat fuselage surfaces and internal weapon carriage in a manner similar to the stealthy U.S. Lockheed-Martin F/A-22A. Another area of possible PRC interest is in “plasma stealth,” which uses a charged ion field in or around an object that absorbs radio frequency energy, such as from radar, creating stealth. Russia developed this technology and apparently was to apply it to both contending Mikoyan Article 1.44 and Sukhoi Su-37 Berkut 5th generation fighters. PRC reports note that Russia is now working on its second generation of plasma stealth technology. The Russians have determined that plasma stealth may be unsuitable for low-altitude platforms, but are developing applications for use on high-speed high-altitude cruise missiles. It is possible that the PLA could obtain this technology as part of new Russian supersonic cruise missiles, reverse engineer it, and apply it to future PLA missiles and combat aircraft.
Due to the critical importance of stealth for future U.S. combat platforms, it is to be expected that China would also devote considerable energy to the development of counter-stealth technology. One area of long-term PLA interest is Metric-Wave radar technology. This radar technology dates back to the 1930s and uses large radio frequency wavelengths, whereas most passive stealth technology is designed to counter far smaller wavelengths of modern radar. At the 1998 Zhuhai show the 23rd Institute of the China Aerospace Co. was marketing their “J-231” metric-wave radar which its claimed had “high anti-stealth” capability. The PLA has several types of Metric-Wave radar and even employs one on its latest No. 170 class destroyer, which will likely carry the PLA Navy’s first high frequency active phased array radar. When combined with modern computers, metric-wave technology has great counter-stealth potential. In fact, at the 2001 Moscow Airshow Russian company marketing such improved metric-wave radar complained bitterly that China had stolen its technology.
The PLA is also known to be interested in bi-static radar, which uses separated transmitter and receiver, and multi-static radar, as a means to defeat stealth. The PLA is also reported to be interested in other novel counter-stealth detectors such as Passive Coherent detection. This technology is able to discern disruptions in broadcast television signals or cell-phone signals to find moving bodies. In the scandal that followed 2002 U.S. accusations of their sale to Iraq, the Ukrainian government confirmed that it had sold its KOLCHUGA passive radar to the PRC. With a radius of action of 600km, the KOLCHUGA is advertised as being able to detect and recognize the PATRIOT missile, F-15, F-16, F-22, MIRAGE-2000, RC-135, E-2 and E-3 AWACS and the F-177 and B-2 stealth bombers. These are all weapon systems that would be used by the U.S. and Taiwan to defend against a PLA attack on Taiwan.

FOREIGN HELP FOR HI-TECH WEAPONS

 

[DV RULES]

Anti-Stealth Sensors to Tackle Chinese and Russian LO Designs Here in Reality

Anti-Stealth Sensors to Tackle Chinese and Russian LO Designs


Posted by David A. Fulghum

With first flight out of the way, the discussion about China’s new J-20 stealth prototype is switching to the aircraft’s mission (fighter or, more likely, long-range strike), sensors (strike missions would require a high-resolution long-range radar) and communications (which would demand high-speed datalinks and sophisticated integration).

Conventional radars have only one-half to one-third of the range of an active, electronically scanned array (AESA) radar. Moreover, the movement of a conventional, mechanically-scanned radar antenna provides a tell-tale glint of radio frequency (RF) reflections to enemy aircraft with advanced radars. Such reflections slash at the effectiveness of a stealth airframe. China is known to be pursuing newer radar technology.

“It’s too early to tell the true status of the Chinese AESA program,” says a Washington-based intelligence official. “We’ve seen lots of press and airshow info on the program, but that doesn’t automatically translate into a robust development or give us an accurate look at where the PRC is as far as fielding one anytime soon.

“Like the [high-performance] engine, it’ll be a challenge to take the step from older radars to one designed for a 5th-Gen fighter,” he says. “Again, though, the J-20 is just the first or second — depending on whom you believe — prototype into a very long development program.”

A two-seat J-10 fighter acted as chase plane for the J-20 during the flight

Photographs show the J-20 flying at shallow angles of attack and with its undercarriage extended. An observer posting minute-by-minute reports of proceedings to the Global Times, apparently from the fence at Avic’s Chengdu facility, said at 12:50:08 local time (04:50:08 GMT) that the aircraft had begun moving, following a second later with “accelerating” and at 12:50:16 “flying”. The landing was reported 18 minutes later.

Two passenger aircraft, one a 737, arrived at the Chengdu facility less than an hour before the J-20’s takeoff, presumably carrying important officials. The Chengdu plant is part of the Avic combat aircraft division, Avic Defense.

“Chinese military [sources] are saying that the first test pilot for the new Chinese fighter is Liang Wanjun,” the analyst says. “He has previously test flown the J-7, J-10 and JF-17. Liang has a total of 2,300 flying hours, joined the PLAAF in 1982 and became a test pilot in 1998.

It is unclear whether the J-20 is a prototype or only a technology demonstrator. Either way, it is not the only program for an advanced combat aircraft.

The deputy chief of the air force, He Weirong, said in November 2009 that in 2017-19 China would field a “fourth-generation” fighter, which in China means an aircraft of the F-22’s technology level. He was not referring to the J-20, however, because a month later a prominent news report in English quoted the People’s Liberation Army Air Force (PLAAF) as saying that the 2017-19 fighter would be an improved J-10. It is possible that the 2017-19 fighter is a supercruise version of the J-10 since the Chinese navy has expressed the need for an aircraft that can maintain fuel-efficient, long-distance, supersonic flight, a necessity for keeping enemy forces away from the coast of China.

The Chengdu J-20 design has struck most analysts and observers as familiar and somewhat different that the Lockheed-Martin F-22 and F-35 as well as the Sukhoi T-50.

“The J-20 is reminiscent of the Russian MiG 1.42 both in terms of planform, and also with regard to the rear fuselage configuration,” says Douglas Barrie, senior fellow for military aerospace at London’s International Institute for Strategic Studies. “The most obvious difference is the greater forward fuselage shaping as the basis for low observable characteristics, along with the different engine intake configuration. The MiG program was cancelled by the Russian government around 1997.”

Others note that the planform also has a resemblance to Sweden’s SAAB Viggen.

Another issue that will continue to surround all stealth designs is how long will current stealth designs offer invulnerability as air defenses adopt even larger and more powerful AESA radars. From the early days of AESA development, a key goal was to build a radar that can detect a very small object like a cruise missile at a distance great enough to target and shoot it down or a larger object like a fighter with a very low observable treatment.

Airborne detection of stealth aircraft may have already been accomplished in a series of tests done at Edwards AFB, Calif. in the second half of 2009. Those with insight into the research say Lockheed Martin’s CATbird avionics testbed –a 737 that carries the F-35 joint strike fighter’s entire avionics system — engaged a mixed force of F-22s and F-15s and was able to target the F-22s.

“The F-35 mission systems suite is the most sophisticated and powerful avionics package of any fighter in the world,” said Dan Crowley, Lockheed Martin executive vice president and F-35 program general manager at the time of the tests.

His clue about the fighter’s anti-stealth capability is in a reference to confronting new, sophisticated, foreign aircraft.

“The F-35′s avionics include on-board sensors that will enable pilots to strike fixed or moving ground targets in high-threat environments, day or night, in any weather, while simultaneously targeting and eliminating advanced airborne threats,” Crowley said.

 

[Tayyab1796]

r u saying in near future we might see a stealth-detecting radar i-e billions of dollars spent on stealth tech have gone down the sink hole ... in near future we might be back to conventional fighter jets , stealth is like using steroids in sports ...should be banned

 

[casual]

well, it's going to happen sooner or later. then they'll develop new stealth technology to counter this radar.

 

[Dragon Emperor]

So if China and USA both have radars that can counter stealth, what's gonna happen to the J-20s and F-35s? Back to old school 4th gen style BVRAAM with both sides equally detective of each other and 3rd gen style dogfighting?

 

[siegecrossbow]

I'm going to bet that Gamit is gonna show up before the second page.

 

[gambit]

I'm going to bet that Gamit is gonna show up before the second page.

Sure...But am disappointed. I see plasma stealth, metric wavelength, and bi-static radars. These things have been discussed before. What is new other than the fact that a new person is repeating the same old news?

 

[K^se]

Sure...But am disappointed. I see plasma stealth, metric wavelength, and bi-static radars. These things have been discussed before. What is new other than the fact that a new person is repeating the same old news?

Absolutely nothing, TELL EM GAMBIT..
/thread..

 

[cityhunterhf]

So if China and USA both have radars that can counter stealth, what's gonna happen to the J-20s and F-35s? Back to old school 4th gen style BVRAAM with both sides equally detective of each other and 3rd gen style dogfighting?

Yep, maybe just like what you said.

Then, J-20 mind be much better than F35... Beacuse it will be the show time of J-20's maneuverability.

 

[siegecrossbow]

Bingo I won the bet !!!

 

[gambit]

Bingo I won the bet !!!

Congrats...!!! But I have to say the first article was muddled and confusing. Uncertain if it is the writer's or a translator service's fault.

 

[siegecrossbow]

^^ They used the google translator.

 

[Akasa]

According to a defense exhibition source, China already has a ground based "anti-stealth" radar in service.

This is the second one.

 

[below_freezing]

So what. Not any Chinese, Russian or even American air defense can shoot down a F-22 or a B-2. (Well maybe S-400s...)

It would only be useful for air combat. So until China deploys 300-400 J-20s... big deal.

Ever hear of ground radars feeding data to fighters?