<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Dave Majumdar"data-reactid =" 18 ">Dave Majumdar

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Security, "data-reactid =" 19 ">Security,

We explain the technology behind the idea.

RIP F-22 and F-35: How could Russia or China shoot down American stealth fighters?

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Once China or Russia has succeeded in establishing a long-wave IRST network, high-speed data links, as well as computers and algorithms for multi-ship sensor fusion, the capacity of US fighters fifth generation to operate independently will diminish."data-reactid =" 22 ">Once China or Russia has succeeded in establishing a long-wave IRST network, high-speed data links, as well as computers and algorithms for multi-ship sensor fusion, the capacity of US fighters fifth generation to operate independently will diminish.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "With Boeing and the US Navy Explaining in detail how a combination of long-wave infrared research and tracking coupled with a high-speed multi-ship data network and advanced sensor fusion algorithms can generate a weapon quality record on an enemy stealth fighter, opponents are more than a matter of time as Russia and China are developing similar capabilities. "data-reactid =" 23 "> Boeing and the US Navy Explaining in detail how a combination of long-wave infrared research and tracking coupled with a high-speed multi-ship data network and advanced sensor fusion algorithms can generate a weapon quality record on an enemy stealth fighter, opponents are more than a matter of time as Russia and China are developing similar capabilities.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "(This first appeared last year.)"data-reactid =" 24 ">(This first appeared last year.)

In Moscow and Beijing, most of the elements necessary for the development and use of counter-stealth technologies similar to those demonstrated by the US Navy and Boeing during the exercise of the 2017 fleet aboard a pair of F / A-18E / F-modified Super Hornets, combining the powerful DTP-N processor, the TTNT-based high-speed IP data network and the research and tracking module long-block infrared (IRST). The US Navy will deploy its new anti-stealth capabilities in the years to come when the Block III Super Hornet comes into service in 2022. Because the Russians and Chinese possess the individual elements of all the technologies required to replicate the US Navy capabilities, it is only a matter of time before Moscow and Beijing begin deploying similar counter-stealth capabilities.

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<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The Russians – as a research scientist at the Center for naval analysis Michael Kofman noted "that his fighter jets were equipped with infrared search and tracking sensors for decades. Even the older versions of Mikoyan MiG-29 Fulcrum and Sukhoi Su-27 Flanker were equipped with an IRST system. The Russians continued to use as the Sukhoi Su-30SM and the Su-35S with the latest and most modern IRST technology, although the the detection ranges are unimpressive. Even the future Su-57 PAK-FA integrates the 101KS-V infrared research and monitoring system. "Like all Russian planes, a huge IRST pod has been on the front end for 30 years," said Kofman. "Data-reactid =" 29 "> The Russians – as noted researcher Michael Kofman of the Center for Naval Analyzes – have been conducting an infrared search of sensors aboard their fighter jets for decades, even Older versions of the Mikoyan MiG-29 Fulcrum and Sukhoi Su-27 Flanker were equipped with an IRST system. The Russians continued to line up modern fighters such as the Sukhoi Su-30SM. and Su-35S with the latest and most modern IRST technology even though the the detection ranges are unimpressive. Even the future Su-57 PAK-FA integrates the 101KS-V infrared research and monitoring system. "Like all Russian planes, a giant IRST had been at the front for 30 years," said Kofman.

However, the infrared wavelength used by Russian systems is not clear, but it is likely that it uses the average infrared. Most military airborne infrared sensors tend to use medium wavelengths because of the good compromise between range and resolution capability. Long wave infrared was generally less common because, even though this part of the spectrum offers excellent range capability and the ability to capture extremely cold objects, these sensors have traditionally been limited by poor resolution and small footprint. However, the advantage is that a good long-wave infrared sensor will be sensitive enough to capture the heat generated by the disruption of the airflow and the friction of the skin of a plane traveling in the atmosphere.

<p class = "canvas-atom-canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The long-wave infrared (LWIR) is for a long time For the Ministry of Defense, the types of detectors in development that have reacted in the IR (LWIR) band 8-12 μm long are the most directly sensitive.The LWIR band is a very popular band of operation because it most signals for a given temperature difference between an object and its background (for example, when imaging terrestrial objects), wrote David Schmieder and James Teague at the Defense Systems Information Analysis Center. "Unfortunately, this band is also one of the hardest to use for detectors because long-wave photons have lower energy than short-wavelength photons. So, detect LWIR photons, it is also detect other low energy products, such as latent heat generated by latent heat and its associated noise. "" Data-reactid = "31"> The Long Wave Infrared (LWIR) has long been a holy grail for the Department of Defense. "The sensitivity could be provided directly by developing detectors that have reacted in the 8-12 μm long IR (LWIR) band.The LWIR band is a very popular operating band because it provides the largest difference signal of temperature between an object and its background (for example, during the imaging of terrestrial objects), wrote David Schmieder and James Teague at the Defense Systems Information Analysis Center. "Unfortunately, this band is also one of the hardest to use for detectors because long-wave photons have lower energy than short-wavelength photons. So, to detect LWIR photons, it is also detect other low energy products, such as latent heat generated by latent heat and associated noise. "

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Boeing has largely solved the problems related to noise, The clutter and the resolution using new algorithms and the huge processing power of the DTP-N computer boarded the Super Hornet Block III allow to get a sensor sensitive enough to detect in-flight targets to long range, beyond the capabilities of an active electronic scanning network such as the Raytheon AN / APG-79. No long wave infrared sensor is hiding, because the camera can capture the heat generated by the disturbance air molecules or absorbed by the sunlight data-reactid = "32"> Boeing has largely solved the problems of noise, congestion and resolution with the help of new algorithms and enormous processing power. the DTP-N computer boarded the Block III. This results in a sensor sensitive enough to detect airborne targets at long distances, even beyond the capabilities of an active electronic scanning radar such as the Raytheon AN / APG-79. infrared sensor – because the camera can capture the heat generated by the disturbance of air molecules or absorbed by the sunlight by an aircraft skin and emitted as background heat.

The story continues

"If the enemy aircraft that approaches you has a small radar cross section, it still emits a thermal signature," said Bob Kornegay, head of Boeing's capture team for F / A's national programs. 18E / F and EA-18G. . "It helps us as the enemies begin to develop their stealth planes. It helps us to overcome that by moving away from this X band. "

<p class = "canvas-atom web-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "The fact is that Russian and Chinese industries of the Defense have experience in the construction of IRST sensors and should be able to develop a long-wave infrared research and tracking module without much difficulty, while providing Russians and Chinese with access to network capabilities Mikoyan MiG-31 Foxhound is equipped with RK-RLDN and APD-518, the latter being able to coordinate a flight of four jet planes.The new Russian fighters such as the Su-30SM, the Su-35S and the Su-57 also integrate data links … as do their Chinese counterparts. However, the speed and throughput of these data links remains in question, but it is quite certain that Moscow and Beijing can afford to develop broadband and broadband data links. Once the Russians and Chinese have the opportunity to connect two or more long-range jets equipped with IRST via a high-speed link, they will have most of the ingredients necessary to create a fighting ability. against stealth. "Data-reactid =" 38 "> The fact is that the Russian and Chinese defense industries both have experience in the construction of IRST sensors and should be able to develop an infrared research and tracking module. The Russian Mikoyan MiG-31 Foxhound is equipped with the RK-RLDN and APD-518 systems, the last of which can coordinate a flight of four jets.New Russian fighters like the Su-30SM and Su-35S and Su-57 also integrate data links, just like their Chinese counterparts. However, the speed and throughput of these data links remains in question, but it is quite certain that Moscow and Beijing can afford to develop broadband and broadband data links. Once the Russians and Chinese have been able to connect two or more longwave IRST-equipped jets via a high-speed link, they would have most of the ingredients needed to build stealth capability.

This leaves the question to Russia and China of being able to develop advanced sensor fusion algorithms, which is a challenge even for US defense subcontractors. It will take time, but it is likely that both countries will have the ability to develop such software and hardware to make it work. Beijing, which has greater access to external sources of computer technology, will likely be able to develop such an avionics software package first in the short term. However, Russia will probably also be able to develop a similar capacity over time – and possibly access foreign processors from China, if the sanctions are not lifted. Once China or Russia has succeeded in establishing a long-wave IRST network, high-speed data links, as well as computers and algorithms for multi-ship sensor fusion, the capacity of US fighters fifth generation to operate independently will diminish. In fact, the US Air Force anticipated this development – the service noted that its F-22 Raptor would be increasingly challenged by the 2030s by the new capabilities of the enemy.

<p class = "canvas-atom-text-canvas Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "" The timeline associated with the continued production of F -22 the reboot will see new shipments of F-22 from the mid-to-late 2020s, "said the Air Force in a 2017 Congressional report detailing the F-22 restart costs of production. "While the F-22 remains the first air superiority solution to face the current threat, new production deliveries would begin at a point where the capabilities of the F-22 would begin to be tested by increasing threats by 2030 and beyond. . "" Data-reactid = "40"> "According to the schedule associated with the resumption of production of F-22, new deliveries of F-22 will begin between the middle and the end of the 2020s," said L-22. air force in a 2017 report to Congress detailing F-22 restart costs of production. "While the F-22 remains the first air superiority solution to face the current threat, new production deliveries would begin at a point where the capabilities of the F-22 would begin to be tested by increasing threats by 2030 and beyond. . "

Indeed, while engineers might eventually find a way to defeat the long-wave IRST tracking of a stealth aircraft, such technologies would likely have to be incorporated into an aircraft early in the design. It is unlikely that such technologies can be modernized. As a result, current stealth aircraft will become increasingly vulnerable, as predicted by the Pentagon.

<p class = "canvas-atom canvas-text Mb (1.0em) Mb (0) – sm Mt (0.8em) – sm" type = "text" content = "Majumdar is the former editor-in-chief of Defense for the national interest. "data-reactid =" 42 ">Majumdar is the former editor-in-chief of Defense for the national interest.

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