Changkong Fighter

Chapter 35: How to Cope
On the big screen, it was shown that when radar bombs and infrared bombs approached alien unidentified aircraft, their guidance heads failed, the missiles plunged into the sea, or exploded without causing effective damage to the enemy.

On the restored situation map, the entire sea area suffered from severe electromagnetic suppression interference, communication channels were blocked, and radars failed. Several aircraft representing Flying Sharks approached the enemy, and at the moment of contact [140], the aircraft was damaged and hit by the attack without warning.

Seeing that the missiles caused no damage and the attack had no warning, the Air Force officers frowned. The Air Force also relies on missiles, and this kind of attack without warning poses a huge threat to fighter planes!
The army officers are not in a much better situation. If the missiles fail, will they use anti-aircraft guns to attack?
Next, the dogfight between the two J15S and the alien aircraft also proved that anti-aircraft guns could not effectively hit the alien aircraft.

Can you figure out the principle of interference?

It is normal to be caught off guard when encountering an alien civilization for the first time, just like a master who has just entered the martial arts world. He will often amaze everyone, and then once his moves are figured out by others, he will hastily exit.

Humanity's spears and shields are constantly evolving and have been temporarily restrained. People present don't need to worry. As long as they understand the principles, they will have a way to fight against them. However, figuring out the technology used by aliens requires scientists and technicians.

"I'd like to ask Comrade Song Xizhu to explain this point." The naval commander looked at the leaders present and explained, "When she came into contact with the aliens, she was on the 815A reconnaissance ship, testing a certain type of radar. She participated in the entire battle and came into close contact with the alien aircraft."

Everyone present looked at the officer the lieutenant general mentioned. Song Xizhu was not nervous. He walked up to the stage with the documents he had sorted out, saluted the people on the stage and the bigwigs sitting in the seats below, and inserted the USB flash drive into his laptop.

While the laptop was reading the data from the USB drive, the old academician approached Academician Zhou and whispered, "Where has this little girl been lately? Did she really end up on a warship?"

Academician Zhou responded in a low voice: "Don't ask questions you shouldn't ask. This is a confidential project!"

As he spoke, the USB drive was read, and the sorted high-definition pictures were projected onto the screen, along with the pilots' combat voice records.

"Comrades, leaders, and chiefs, hello!

Let me explain. During this contact with aliens, our radar system was the first to fail. Afterward, through analysis and restoration of the radar data, we discovered that the alien aircraft themselves were a source of interference, and the intensity of the interference was inversely proportional to the distance from them.

During the speech, the process of the radar missile attacking the enemy was demonstrated on the big screen. At first, the missile seeker was able to capture the target. However, as the distance got closer, the interference intensity became stronger and stronger. The seeker was unable to capture the accurate echo and eventually entered inertial navigation and plunged into the sea.

"Both our PL-12 and the US military's AIM-120C have failed. The USS Carl Vinson carrier battle group also suffered this loss, resulting in the ineffectiveness of its missiles and close-in weapon systems."

The failure of radar is not good news. Radar is the most important means of detection in military technology, without a doubt. Whether it is a photoelectric detector or an EODAS system, its detection distance is not as good as that of radar that can detect hundreds of kilometers (different bands).

This will significantly suppress the warning range, making contact with the enemy faster, less reaction time, and more dangerous.

"Regarding the infrared seeker, according to the voice recordings of pilots Zhang Peng and Liu Jun and battlefield footage collected on-site, the aliens possess the ability to shift the spectrum, much like using decoy flares to deflect incoming infrared missiles. This also applies to electro-optical search."

After that, Song Xizhu played the voice calls of Zhang Peng and Liu Jun, and then played the video recording of the infrared bullet being hooked away by the "optical bait" on the big screen, so that those present could have a clear understanding.

There were small discussions again at the scene, especially in the technical field and the troops. Many leaders felt it was a difficult situation. These two axes directly made the human spear blunt. Note that it was just blunt.

At this point, someone sitting on the stage asked, "Comrade Song Xizhu, can heat sources also be deflected?" "Yes, the technology we're using currently uses infrared suppression to reduce infrared signals. But infrared signals are also a type of light wave, just like electromagnetic waves."

"Aliens are using methods we don't yet understand to deflect light waves, creating realistic optical decoys. Based on our analysis, we infer that the electromagnetic clutter from aircraft is a side effect."

Song Xizhu played a video recording of a drone launching a chopping laser code, which eventually entered the tiankeng like a kaleidoscope.

"Spectral shifts and electromagnetic interference are occurring around the tiankeng, causing the chopper laser to be deflected. Perhaps the tiankeng we see isn't its true appearance. Based on the data we've collected so far, their optical technology is superior to ours."

Vision is the main means of detection for humans. Some of the technologies of alien civilizations restrain human physiological characteristics.

Is there any way to solve this problem? The leader asked again.

"Commander, this isn't my area of ​​expertise, so I can't give you an authoritative answer. However, I can offer some advice regarding radar."

Song Xizhu's major is radar, and she can only give interpretations within the scope of her own expertise. Although she has some basic knowledge of other majors, she is just showing off her skills in front of these bigwigs in the audience.

"The radars currently used on our warships and aircraft are all 'optical zone' radars. They are suppressed in areas with severe electromagnetic interference. Perhaps we can use meter-wave radars with longer wavelengths. When entering the 'resonance zone', target detection has nothing to do with RCS, but only with target size."

"The above is all speculation. Whether changing the radar wavelength will have any effect in areas with severe electromagnetic clutter requires practical experience to determine."

Soon, after finishing his talk on the knowledge related to his profession, Song Xizhu saluted again, walked off the stage and returned to his seat.

Another professional expert came on stage and gave his own solution after listening to the report and understanding the combat process.

"If the aliens' technology is limited to its current state, the solution is not difficult. Replace the seeker with a combined guidance system, or use only an infrared seeker, and increase the missile warhead's yield."

"After launch, the missile is guided via data link relay. When electromagnetic clutter severely interferes with the radar seeker, the system switches to infrared guidance mode. Judging from the video of the pilot shooting down the alien aircraft, the infrared decoys they cast can't be too far away. As long as the explosion is powerful enough, it will splash into them."

This is just like a sniper grenade. The Americans improve the shooting accuracy, and the University of Tokyo increases the killing range. The result is the same anyway.

　这段不放在正文了：光波属于电磁波谱中的可见光部分，其频率范围在3.9×10至7.5×10赫兹之间，对应的波长约为400至760纳米。红外线位于可见光红光外端，波长范围大约在0.76-1000微米之间，它们都是光波。

　　Radar is divided into three regions: Rayleigh curve, resonance region, and optical region.

　　Ka=π/λ. When Ka is less than 0.5-20, it enters the resonance zone. When the target size is roughly the same as the wavelength, regardless of whether it is a stealth design or not, it will become an antenna as a conductor and have an impact on electromagnetics.

　　
　
(End of this chapter)