B21 bomberIt is a new generation of U.S. strategyBombers, with extremely high stealth performance and long-range strike capabilities. Its mission is to play a key role in strategic deterrence and strikes against the Western Pacific. The B21 adopted a penetrating strategy, that is, through stealth flight and surprise strikes, infiltrating enemy lines, rightMilitaryThe target strikes. In a conflict in the Taiwan Strait against China, the B21 may use its stealth flight capability to carry out surprise strikes in China's coastal areas, forming a two-fold situation.
However, to avoid ChinaRadarMonitoring is very difficult. U.S. militaryin designStealth aircrafttime, the use of advancedStealth technologywithAbsorbing materialsto make it inRadarThere are almost no noticeable features on it. But China is also growing anti-oppositionStealth technology, such as anti-stealthRadarand its own stealth fighter J-20. Therefore, countermeasures are being consideredB21 bomberIt is necessary to find practical methods, not just imagination and "evil" methods.
The researchers proposed a target in a ** published by the Western University of TechnologyB21 bombernew approach. WhenB21 bomberWhen some electronic systems are turned off to maintain radio silence, they rely primarily on infrared search and tracking systems for navigation and target identification. However, this system has a major drawback, it can identify the target, but it cannot obtain information such as the specific distance of the target.
In contrast, the Chinese oneJ-20 fightingThe aircraft is equipped with an optoelectronic targeting system, which can accurately know the location of the target and other important information. The electro-optical targeting system is a passive infrared detection method, and its ability to analyze target units is more complex and advanced than simple infrared search. Therefore, when acting at night,J-20 fightingThe machine can be accurately locked by using an optoelectronic targeting systemB21 bomber, and launch air-to-air missiles to strike.
In order to solve the problem that the missile cannot lock onto the stealth target, the researchers proposed to adopt the equipment multi-pulseRocket enginesHypersonic missiles strike at you. This missile has a high speed and long range, and is able to approach quickly after launchB21 bomberand take advantage of its wide back to enlargeRadarscattering area, which makes it easier to be locked by missiles. By launching multiple hypersonic missiles, it is possible to completely encircle and suppressB21 bomber, so that there is nowhere to run.
AlthoughB21 bomberWith advanced onesStealth technologyand long-range strike capabilities, but it faces a number of challenges. On the one hand,Stealth aircraftAlthough the performance is advanced, once it is out of the protection of early warning aircraft, there are still certain deficiencies in the face of the air defense forces of a major country. B21 bomberIt has poor evasion ability in the air, and once it is locked by multiple missiles, it is difficult to escape the fate of being shot down. On the other hand,B21 bomberofStrategic positioningEmbarrassment, although it was developed mainly against China, in the actual war, the United States cannot take much advantage, but may bear a higher cost of war damage.
For China,J-20 fightingMachines face similar challenges. Once out of range of AWACS, the J-20 is just as easy to detect. withB21 bomberThe difference is that the J-20, as a fighter, has higher maneuverability and evasion capabilities, but it still faces the risk of being locked by multiple missiles.
In short, againstStealth aircraftThe countermeasures need to be pragmatic and scientific, not "evil" methods. B21 bomberAlthough it has advanced stealth and long-range strike capabilities, it also faces many challenges and embarrassmentsStrategic positioning。For China, understandB21 bomberofStrategic positioningand technical characteristics, as well as the development of countermeasures to match them, will be of great significance to the maintenance of ***.