According to the report of the "South China Morning Post", the "Beihang Journal" published an article "An Optimal Resource Allocation Algorithm for Radar Networking System for Stealth Target Tracking" showing that the new technology they have developed can make the F-22 have the same signal strength as ordinary fighters on the radar screen, and the RCS is more than 6 square meters, which is 60,000 times higher than before! The new technology covers about 63,000 square kilometers, an area where the F-22's trajectory will be nowhere to hide, no matter what maneuver it takes.
The new detection technology developed by Continental's technical team can allow the radar to accurately locate the F-22 with a minimum error of 20 meters, which will greatly enhance the interception probability of interceptor fighters and air-to-surface missiles. The air defense system can locate the target in 0.008 seconds and obtain detailed information about the F-22 in 0.02 seconds.
The F-22, which used to be able to launch missiles or glide bombs when approaching a combat zone, is now locked out of the 200-kilometer cordon, and its safety distance advantage is gone. On the modern battlefield, the whole process from finding a target to locking it down is often done in one go, and once the F-22 enters the radar field of vision, it means that it has become the focus of many radars and missile aiming.
We must know that the stealth of a fighter is not optical stealth, but refers to the inability to be detected by radar, so this has a term called radar cross-sectional area. Because radar is currently the main equipment for long-range detection of aircraft. The radar has different detection distances for different aircraft, and it has a great relationship with the aircraft in addition to the radar itself and environmental factors. Airplanes, on the other hand, are complex in shape and vary in size. For comparison, an artificial parameter is established, called the Radar Cross Section (RCS), which can also be referred to as the radar section.
The radar cross-sectional area is generally measured in square meters, which reflects the size of the radar signal characteristics of the target and is proportional to the detection range. For example, a radar can detect a target with a radar cross-section of 5 square meters and a detection range of only 48 kilometers for a target with a radar cross-section of 0.01 square meters.
The stealth effect of stealth aircraft is not all-encompassing. Due to the differences in structure, shape and material in the nose, fuselage, tail and other parts, the radar cross-sectional area in different directions is different. In order to reduce the probability of being discovered and tracked by the enemy, the radar scattering cross-sectional area of the forward and rear of the enemy is minimal. Similarly, stealth aircraft cannot do full-band stealth. At present, the detection and tracking radar is mainly based on L, S, C, X and other bands, so stealth aircraft generally achieve stealth in the above frequency bands.
So the stealth machine can evade the radar, then you only need your radar technology to be strong enough to monitor the stealth machine, which is also the anti-stealth radar. The world's first anti-stealth advanced meter-wave radar is developed by Chinese radar expert Wu Jianqi, who developed a new generation of three-coordinate radar with a new system, as early as 2013, China's meter-wave radar detected the F-22 stealth fighter from Japan to South Korea from 450 kilometers away, and achieved continuous tracking.
In addition to the performance of the radar is strong enough to find stealth fighters, there is also the initiative to expose stealth fighters, for example, the principle of stealth aircraft is to minimize the reflected radar echo, if the radar energy emitted is greatly increased, the radar echo of the stealth aircraft will also increase accordingly, so that it can be distinguished by radar. This is China's original energy anti-stealth radar.
This time, Chinese scientists subversively proposed to amplify the radar signal of the stealth fighter, which is also a way to actively expose the stealth fighter, and you must know that if the radar signal of the F22 is magnified by 60,000 times, then the F22 fighter is no different from the ordinary fighter, so that China's radar system can accurately locate the real-time position of the F-22 with extremely high accuracy. And according to the research data of the Chinese scientist team, only 3 radars are needed to continuously track the F-22 fighter formation, and these radars only need to be strategically deployed on land, islands, ships or air early warning aircraft, which is simply a proper dimensionality reduction strike.
The fact that China has been able to develop such a subversive anti-stealth radar technology also shows that China has long mastered the radar reflection signal characteristics of the F22 and F35.
At present, China is developing a new generation of fighters, which is to realize omnidirectional broadband stealth technology. Different from some stealth technologies of fifth-generation aircraft, omnidirectional broadband stealth technology can greatly reduce the radar cross-sectional area of aircraft in multiple directions such as front, rear, left, right, up, down, VHF, ultra-high frequency, L, S, C, X, Ku and other radar frequency bands, and its stealth technology is more complex and more difficult to implement.
But once it is realized, then it means that Chinese fighters can directly carry out penetrating strikes against the United States and grasp air supremacy.