Wealth

In fact, the stealth fighter technology of the U.S. military is not unbreakable. This is just a top-notch propaganda. In addition, the target of the U.S. stealth fighter has always been small and weak countries, and it has also caused a situation that is one-sided. If they encounter Russia head-on If you do, you know that it is actually difficult for this fighter to be invisible. "A person in charge of the laboratory explained to Fan Wuyao.

"Oh. That's how it is." Fan Wubing nodded and said.

In fact, there is one of the most important anti-stealth radars, which has been identified during World War II and is still in use today. Most of these are VHF and high-frequency long-range air-to-air reconnaissance radars.

Most low detectable devices use technology to prevent the detection of search radars and fire control radars at the centimeter wavelength level. VHF and high frequency radars are radars with wavelengths ranging from decimeters to meters.

“Generally speaking, the radar cross-sectional area of ​​an aircraft increases as the wavelength of the irradiated radar increases. In addition, when the radar wavelength is at the same order of magnitude as the aircraft or a component of the aircraft, the radar wave resonates with the aircraft, thereby expanding the aircraft’s Radar cross-sectional area. Longer wavelengths and resonance phenomena make it possible for VHF and HF radars to detect stealth aircraft. However, due to the lower resolution of the detection angle and range of these two radars, they cannot provide accurate aiming and Fire control information.” The expert in the laboratory showed the schematic diagram on the computer screen, and introduced to Fan Wuyi.

In fact, Fan Wubing knew nothing about this. Although he had learned some general physics before, it was obviously not enough to put it here, but if you need to listen to the experts to explain the principle, you can still listen to it.

After the Gulf War, the Russian Radar Industry Force began to take various measures to digitally improve the VHF and HF radar systems to improve the anti-stealth capabilities of such radars. Now, the resolution and signal processing capabilities of Russia’s old-fashioned radars have been greatly improved. Some newly developed radars such as heart and vehicle-mounted VHF adaptive electronically scanned array radars may have great anti-stealth capabilities, but they are just actual combat. It has not yet been reflected in the country, and no one knows what the country is like.

Some other newly developed conventional radars may also have anti-stealth capabilities, such as Lockheed Martin’s theater high-altitude area air defense radar and Israel’s Turquoise radar system. These systems have a long detection range and high in the high-frequency band. Resolution.

"Another anti-stealth technology is Hongxi, photoelectric systems, including infrared search and tracking and high-magnification optical devices. The airspace detected by these systems is limited and must be guided by other sensors. In addition, the detection effectiveness of infrared photoelectricity Affected by clouds and low luminosity, stealth aircraft can respond to infrared photoelectric equipment reconnaissance through thermal signal management, stealth flight profile and low-detectability technical coatings." The expert explained to Fan Wuyao, "Actually, It was this technology that won the American journalism in Serbia."

Another anti-stealth technology with greater potential is millimeter-wave imaging equipment, which uses radio signals naturally generated by all targets. Millimeter waves can penetrate clouds and low-visibility areas, radar can transmit waveforms, and then receive and process the echo. The Pachi Longbow Hellfire system is a typical millimeter-wave radar. It is said that the Russian Defense Industry Corps has been developing a millimeter-wave air defense missile seeker, and several others. Large countries are also conducting similar studies.

In general, although some technical equipment has strong anti-stealth capabilities, they have some shortcomings that limit the effectiveness of air defense. Traditional radars are vulnerable to electronic warfare and air-to-ground weapons reconnaissance and attacks. Monitoring systems cannot provide tracking information. Infrared The reconnaissance effectiveness of photoelectric and micro-wave systems is relatively limited.

"In contrast, passive radar has strong concealment capabilities, can work in all-weather conditions, can carry out medium-range and long-range reconnaissance activities, and has great potential in reconnaissance, tracking and targeting stealth aircraft. Therefore, it is anti-stealth The most powerful technology in technology." Finally, the experts concluded.

Fan Wubing nodded his head again and again, but he was a little muttered in his heart. He said that this was something that experts discussed, and talking to himself was a bit like a monk. Who knows whether these technologies will work. Can it be used in actual combat?

However, he immediately noticed a problem, "Since the anti-stealth technology has been strengthened, future fighters may have nowhere to hide, so is there a market for research on stealth technology?"

"The issue of President Fan is indeed raised by many people." Experts have expressed appreciation for this issue raised by Fan Wubing. In fact, recently, because of his mouth being shot down, many people think that it is so advanced. All of the stealth fighters were shot down, so what use is there to study stealth technology?

On the contrary, the shot down of Likou over Yugoslavia further demonstrated the importance of stealth technology to the United States.

The United States regards stealth technology as its top priority for development, such as procuring new stealth fighters or making improvements to stealth fighters. In short, stealth technology has become the core means for the United States to seize air supremacy.

"As the stealth system becomes more and more common, the non-stealth system's powerful technology is applied to newly developed military aircraft and ground combat systems. Countries around the world have invested a lot in the research and development of stealth technology. Funding. As the U.S. Air Force will retire all its fighter jets in a few years, there is a shortage of stealth combat aircraft in the U.S. Air Force." Experts explained to Fan Wuyao, "Currently, the U.S. Air Force’s stealth fighters are equipped with 20 2 bombers. Two hundred blade fighters, and the joint strike fighters are expected to be equipped with troops in ten years. According to the plan, the United States will purchase more than 2,400 joint strike fighters with a 30-year lead time. At the same time, Russia and China , India, Japan and other countries are developing stealth fighters. In short, all countries have a great demand for stealth technology and the technology is constantly developing.

After hearing this, Fan Wubing nodded, "Demand is the market, and the market is profit. It seems that our company's future prospects are still very bright. At least we can develop some stealth fighters and sell them to some small countries for some money."

When he said this, the experts stopped talking, probably because everyone has not yet adapted from this system transformation, for some top military technologies. China still habitually chooses self-digestion and self-absorption, never considering the need to commercialize advanced technology before selling it to foreigners.

Seeing that everyone seemed to be suspicious, Fan Wuyao slapped and said, "Our country does not engage in hegemonism, nor does it bully small countries. This lacks an atmosphere of actual combat to test new weapons. Just rely on the military. The fact that Fang fought back and forth by himself was obviously unable to produce results. In the end, it would only lead to an overall decline in military technology, and the gap between the United States and Russia was getting bigger and bigger. Therefore, selling arms in the future is an inevitable way for us to go. Road. Don’t the Americans fight all day to maintain their military superiority and at the same time carry some arms and make money?"

After listening to Fan Wubing’s words, everyone thinks it’s the same, but even if the company develops advanced stealth technology or anti-stealth technology, it will take opportunities to be used in actual combat. It can be finalized and put in The market takes time even more.

I just don’t know, after the product is marketed, can it be sold abroad for actual combat, as Fan Wuyao said? If you can achieve this goal, making money is the second priority. First, everyone can see how effective the actual combat is, or make corresponding changes.

The technological advancement of weapons of war is indeed inseparable from actual combat tests, and this is also a reality.

Fan Wubing then visited a series of laboratories to learn about the progress of stealth technology.

Simply put, invisibility is achieved through a series of technologies, which can make a platform difficult to be discovered and attacked. Generally speaking, it needs to reduce the aircraft's active signal and passive signal characteristics. Active signals are all visible signals scattered by the invisible platform, while passive signals are all visible signals scattered by the invisible platform under external illumination. To reduce active signals, low probability of intercept technology is generally used, and to reduce passive signals, low detectability technology is generally used.

If the aircraft can be detected by infrared sensors at a distance of 20 kilometers, the effort to make the aircraft invisible at five miles will be futile, and designers pay more attention to reducing the signal scattered by the aircraft’s radar and infrared sensors.

Reduce the radar cross-sectional area by improving the shape of the fuselage and using radar absorbing materials. The fuselage can reflect radar signals to make them deviate from the direction of the launcher. The improved shape of the fuselage is mainly for traditional radars. The receivers of traditional radars are configured together with the launcher, which is less effective for receiving and splitting radars ~ www.wuxiamtl.com ~ Radar absorbing materials absorb radar energy and Reduce the intensity of radar echo to enhance the invisibility of the fuselage.

At present, the technology in the research room is mainly in the research cellar by relaying radar energy or ionizing the boundary air around the fuselage, so that the stealth aircraft actively cancels the radar echo, but this is indeed more difficult.

Fan Wubing was still quite emotional after the visit, except that the skin obtained on the Kursk in the previous eye did not appear in the research of Southeast Heavy Industry. According to Zhang from the General Armament Department, This matter is of great importance, and the strategic nuclear submarine is the dry city of the country. Very important.

Therefore, all research work on nuclear submarines is done by the military itself. As for fighter stealth technology and anti-stealth technology, the military just let Southeast Heavy Industries do it, and even provided a lot of existing technologies. The success of the research is for their reference, and they are optimistic about the success of these technical researches.

After Fan Wubing learned the news, he was still a bit regretful. After all, the British and American nuclear submarines were all provided by private arms dealers. This was the gap.

I want to make a difference in this area. It seems that there is still a lot of work to be done, but now it seems that I have taken a gratifying step.