Just after the successful first flight of the U.S. B-21 stealth bomber, the United States and the West began a new round of "touting", believing that the B-21 will form a new generation of "stealth group" with F-22, F-35 and B-2, and become the strongest combat force of the U.S. military to fight China!Some foreign media even believe that it is precisely because of the successful test flight of the US military B-21 that China took the initiative to discuss the topic of "artificial intelligence" and "nuclear **" with the United States. It can be seen from this that the "stealth fighter" unit of the US military, represented by the B-21, has become a "new tool" for the United States and the West to contain China. However, after years of exploration and research, China has also built a multi-means and multi-level "anti-stealth detection network" against various stealth fighters of the US military, which is enough to offset the "so-called superiority" of the US military in this field!
In fact, at the Zhuhai Air Show in 2021, China came up with the revolutionary YLC-8E high-mobility anti-stealth radar. This product, known as the "flagship of China's anti-stealth radar", uses the UHF frequency band and has the ability to accurately detect various stealth fighters at long distances. Because it overcomes the shortcomings of low long-distance detection accuracy and poor anti-jamming ability of meter-wave radar;And it is also the world's first new anti-stealth weapon that combines UHF meter-wave radar technology with active phased array radar, so it can have good long-range detection capabilities for F-22, F-35, B-2 and other world-class stealth fighters. Moreover, by increasing the energy of the radar beam, the detection range and accuracy of long-distance stealth targets can be increased, and theoretically the latest stealth fighter such as the B-21 also has good detection capabilities.
Moreover, at the "2023 World Radar Expo" held in April 2023, in addition to continuing to exhibit the "anti-stealth radar flagship" YLC-8E, China also came up with a YLC-2E S-band multifunctional radar that can be deployed and has anti-stealth capabilities, which is also the first public appearance of this type of radar. YLC-2E adopts advanced technical system, array scale optimization design, through the use of advanced third-generation semiconductor materials to achieve extremely high energy application efficiency, coupled with advanced algorithm support, so that energy anti-stealth has become possible, a variety of technical means to ensure the long-distance effective detection of stealth aircraft. It can be said that it not only has the same "increased energy" ability as the YLC-8E, but also has a high level of intelligence, which can automatically optimize the scheduling of radar detection targets, and can also automatically select countermeasures for external interference.
The huge size of the JY-27A anti-stealth radar is clearly visible on satellite maps.
Of course, in addition to these two "anti-stealth artifacts", we also have a new "half-meter wave anti-stealth radar" JY-27A. Because the beam of this type of radar is between decimeter wave and meter wave, and the method of increasing the radar caliber and transmitting power makes up for the problem of large error of some meter-wave anti-stealth radar, it can have a good detection ability for long-distance small air targets and stealth targets.
In addition, in addition to the above three "famous" anti-stealth radar "big killers", China also has 610B long-range early warning anti-stealth radar, JY-26 long-range three-coordinate anti-air warning radar, JL3D-91B meter-wave three-coordinate radar, REL-4L-band long-range three-coordinate radar and other long-wave anti-stealth radar products with top performance, which can ensure the ability to detect, detect and track the United States F-22, F-35, B-2 and the latest B-21 at a long distance.
And according to foreign media sources, in addition to developing and equipping a variety of "anti-stealth radars", China is also vigorously developing the "infrared search and tracking system (IRST)" in response to the "thermal energy" phenomenon that stealth fighters cannot cover up in flight. In 2015, the well-known FlightGlobal** published an article claiming that China had developed an IRST detection device for the J-20, which can detect the infrared signature of the American B-2 stealth bomber and the F-22 stealth fighter at a distance of 150 and 110 kilometers.
Infrared image of an aircraft taken at a range of 7 km to 37 km.
Generally speaking, the "infrared signature" of stealth fighters generally comes from the heat generated by the friction between the fuselage and the air during flight. After years of development, in August 2022, the South China Morning Post reported on the new ** published in a Chinese scientific research journal, showing that China has developed an "infrared detection system" that can detect civil aircraft up to 285 kilometers away. Compact enough to be mounted on an aircraft or satellite, the infrared detection system has the ability to scan the entire sky in seconds, far more than most similar devices available, and can clearly distinguish the contours, wings, tail and even engine numbers of the target aircraft in the infrared spectral image. It is conceivable that if the J-20 is installed with similar equipment, then with long-range air-to-air missiles it can easily shoot down enemy stealth fighters.
Infrared imaging effect of civil aircraft at different distances in this infrared detection system.
Although this article, published in an open journal, only mentions that we use optical sensors that can detect single-photons accurately and efficiently in this cutting-edge infrared detection equipment, it does not provide any details about this single-photon sensor. However, from the fact that China has already launched the first single-photon detectable "Micius" quantum satellite in 2016, it is speculated that China will not only equip J-20 and other fighters with advanced "infrared search and tracking system (IRST)", but may also lead the United States to be the first to apply "quantum detection networking" to "anti-stealth" detection technology, and integrate it into J-20, so that it has the ability to "discover and destroy before the enemy" against stealth fighters in the United States, including B-21!
It can be said that although the United States still has extremely strong research and development capabilities, it can continue to come up with "strike methods" that can threaten other countries. But China now also has enough ability to develop corresponding equipment or defensive countermeasures, and even surpass the United States in some areas!Therefore, if the United States delusionally thinks that it can "kick open" China's "door" with a fighter with extremely strong stealth capabilities only by relying on a fighter with extremely strong stealth capabilities like the B-21, they may face the "joint strangulation" of China's "multi-level anti-stealth detection network" and the J-20 long-range missile!