Chapter 1084 Advanced Technology

In fact, the US military's stealth fighter technology is not unbreakable. This is just a kind of propaganda. In addition, the targets of the US military's stealth fighters have always been small and weak countries, which has also created a one-sided situation. If they encounter Russia head-on, they will know that it is actually very difficult for this fighter to be invisible. "A person in charge of the laboratory explained to Fan Wubing.

"Oh. So that's it." Fan Wubing nodded.

In fact, there is an important anti-stealth radar that was invented during World War II and is still in use today. Most of these are very high frequency and high frequency long-range air reconnaissance radars.

The technology used by most low-detectable devices is to prevent being detected by centimeter-wavelength search radars and fire control radars. Very high frequency and high frequency radars are radars with wavelengths of decimeters to meters.

"In general, the radar cross-section 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 part of the aircraft, the radar wave resonates with the aircraft, thereby expanding the radar cross-section of the aircraft. Longer wavelengths and resonance phenomena make it possible for very high frequency and high frequency radars to detect stealth aircraft. However, due to the low resolution of reconnaissance angle and distance of these two radars, they cannot provide accurate aiming and fire control information. "The laboratory expert showed the schematic diagram on the computer screen and introduced it to Fan Wubing.

In fact, Fan Wubing also had a partial understanding of this. Although he had learned some general physics before, it was obviously not enough to put it here. However, he was still able to listen to the experts explain the principle.

After the Gulf War, the Russian radar industry 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 radars have been greatly improved. Some newly developed radars, such as the Xinjia vehicle-mounted VHF adaptive electronic scanning array radar, may have great anti-stealth capabilities, but they have not yet been reflected in actual combat, and no one knows how the country is.

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

"Another anti-stealth technology is the red sunset, optoelectronic system, including infrared search and tracking and high-magnification optical equipment. The airspace detected by these systems is limited and must be guided by other sensors. In addition. The detection effectiveness of infrared optoelectronics is greatly affected by clouds and low light. Stealth aircraft can deal with the reconnaissance of infrared optoelectronic equipment through heat signature management, stealth flight profiles and low-detectability technology coatings. "In fact, the technology used to defeat the Americans in Serbia was used," the expert explained to Fan Wubing. "

Another anti-stealth technology with great potential is millimeter wave imaging equipment, which uses the radio signals naturally emitted by all targets. Millimeter waves can penetrate clouds and low-visibility areas.

The radar can transmit waveforms and then receive and process echoes. The Patch Longbow Hellfire system is a typical millimeter wave radar. It is said that the Russian defense industry forces are already developing millimeter wave air defense missile seekers, and several other major countries are also conducting similar research.

In general, although some technical equipment has strong anti-stealth capabilities, some of their defects limit the effectiveness of air defense. Traditional radars are vulnerable to electronic warfare and air-to-ground weapon reconnaissance and attacks, and monitoring systems cannot provide tracking information, while infrared optoelectronics and micrometer wave systems have limited reconnaissance effectiveness.

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

Fan Wubing nodded repeatedly, but he was a little bit grumbling in his heart, thinking that these things are all issues discussed by experts, and bragging to himself is a bit like deceiving people. Who knows whether these technologies can work and can be used in actual combat?

But he immediately noticed a problem, "Since anti-stealth technology has been strengthened, future fighters may be invisible, so is there still a market for research on stealth technology?"

"Mr. Fan, this question has indeed been raised by many people." The expert was somewhat appreciative of the question raised by Fan Wubing. In fact, recently, because of the shooting down of the Kou, many people thought that since such an advanced stealth fighter was shot down, what was the use of studying stealth technology?

On the contrary, the shooting down of the Kou over Yugoslavia showed the importance of stealth technology to the United States.

The United States regards stealth technology as a technology with the highest priority, such as purchasing new stealth fighters or improving stealth fighters. In short, stealth technology has become the core means for the United States to seize air supremacy.

"As stealth systems become more and more common, the emerging technologies of non-stealth systems are increasingly being applied to newly developed military aircraft and ground combat systems. Countries around the world have invested heavily in the research and development of stealth technology. Funds. Since the U.S. Air Force will retire all its fighter jets in a few years, the U.S. Air Force is currently short of stealth combat aircraft. "The expert explained to Fan Wubing, "The U.S. Air Force currently has twenty stealth fighter aircraft and nearly 2 bombers. Two hundred Blade fighters, and the Joint Strike Fighter is expected to be equipped with the army in ten years. According to the plan, the United States will purchase more than 2,400 Joint Strike Fighter, with a delivery cycle of thirty years. At the same time, Russia and China. Countries such as China, India, and Japan are all developing stealth fighters. All in all, countries have great demand for stealth technology and the technology is constantly developing.

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

When he said this, the experts suddenly stopped talking. It is probably because everyone has not adapted to this system change and has to deal with some top-notch military technologies. China has habitually chosen to digest and absorb itself, and has never considered commercializing advanced technology and then selling it to foreigners.

Seeing that everyone seemed to have doubts on their faces, Fan Wubing laughed and said, "Our country does not engage in hegemony, nor does it bully small countries. This country lacks a practical combat atmosphere to test new weapons. We can only rely on the military." The side's repeated attacks are obviously ineffective and will ultimately lead to an overall decline in military technology, and the gap between the United States and Russia is getting wider and wider. Therefore, selling arms is an inevitable path for us to take in the future. Road. Don’t Americans fight all day long just to maintain their military advantage and make money by selling some arms?”

After listening to Fan Wubing's words, everyone thought that this was the case. However, even if the company develops advanced stealth technology or anti-stealth technology, it will still need opportunities to be used in actual combat. It can be finalized and put into use. The market takes even more time.

I just don’t know, after the product is marketed, can it really be sold abroad for actual use as Fan Wubing said? If this goal can be achieved, making money will come second. First, everyone can see what the actual results are and make corresponding changes.

The technological progress of war weapons is indeed inseparable from actual combat testing. This is also a practical situation.

Fan Wubing then visited a series of laboratories and learned about the progress of stealth technology.

Simply put, stealth is achieved through a set of techniques that make a platform difficult to detect and attack. In general, it requires reducing the aircraft's active and passive signatures. Active signals are all visible signals emitted by the invisible platform, while passive signals are all visible signals emitted by the invisible platform under external illumination. Low interception probability technology is generally used to reduce active signals, and low detectability technology is generally used to reduce passive signals.

If the aircraft can be detected by infrared sensors at a distance of twenty kilometers, then efforts to make the aircraft invisible at five miles are in vain, and designers focus more on reducing the signals 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 away from the aircraft. Improving the shape of the fuselage is mainly for traditional radars. The receiver and transmitter of traditional radars are configured together. It has poor effect on separate radars. Radar absorbing materials absorb radar energy and reduce the intensity of radar echoes. Strength to enhance the stealth power of the fuselage.

The current technology in the research laboratory is mainly to retransmit radar energy or ionize the boundary air around the aircraft fuselage, so that the stealth aircraft can actively cancel the radar echo, but this is indeed relatively difficult.

Fan Wubing was quite emotional after the visit, but the skins and other things he obtained on the Kursk did not appear in the research of Southeast Heavy Industry. According to Minister Zhang of the General Armament Department, This matter is of great importance, and strategic nuclear submarines are the capital 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 Industry do it, and even provided many existing technologies. The success of the research provided them with reference, and they were optimistic about the success of these technical studies.

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

If I want to make some achievements in this area, it seems that I still have a lot of work to do, but now it seems that I have taken a gratifying step.