Methods of Response

On the large screen, it showed radar-guided missiles and infrared missiles losing their guidance heads as they approached the alien unidentified flying objects, with the missiles either plunging into the sea or exploding without causing effective damage to the enemy.

On the reconstructed tactical display, the entire sea area was subjected to severe electromagnetic suppression and jamming, communication channels were blocked, and radar systems failed. Several aircraft, representing the Flying Sharks, approached the enemy, and at the moment of contact, one aircraft was damaged, hit by an unexpected attack.

Seeing that the missiles were ineffective and the attacks were unexpected, the Air Force officers frowned. The Air Force also relied on missiles, and these unexpected attacks posed a great threat to fighter jets!

The Army officers weren't much better off. If missiles failed, were they supposed to use anti-aircraft guns?

Subsequently, the dogfighting between two J-15S aircraft and the alien aircraft also proved that even anti-aircraft guns couldn't effectively hit the alien aircraft.

[Can the principle of jamming be figured out?]

It's normal to be caught off guard when encountering an alien civilization for the first time. It's like a master entering the martial arts world for the first time; they often amaze everyone, but once their moves are figured out, they quickly retreat.

Humanity's spears and shields are constantly developing. Although temporarily countered, those present were not worried. As long as the principle was understood, a countermeasure could be found. How to understand the technology used by the aliens would require the science and technology departments and technical personnel.

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

Everyone present turned their gaze to the officer mentioned by the lieutenant general. Song Xizhu wasn't nervous. She walked onto the stage with the compiled documents in her hand, saluted the people on stage and the dignitaries seated below, and inserted a USB drive into the laptop.

As the laptop read the data from the USB drive, the old academician leaned towards Academician Zhou and whispered, "I was wondering where this little girl had been lately. She actually went onto a warship?"

Academician Zhou replied in a low voice, "Don't ask what you shouldn't. It's a classified project!"

As they spoke, the USB drive finished reading, and organized high-definition images were projected onto the screen, along with accompanying pilot combat voice recordings.

"Hello, Comrades, Leaders, and Commanders!

I will now proceed with the explanation. During this contact with the aliens, the first system to fail was our radar system. Through post-incident analysis and restoration of radar data, it was discovered that the alien civilization's aircraft were themselves a source of interference, with the interference intensity inversely proportional to their distance."

While speaking, she demonstrated the process of a radar-guided missile attacking the enemy on the big screen. Initially, the missile's guidance head could capture the target, but as the distance decreased, the interference intensity increased, making it impossible for the guidance head to capture accurate echoes. Ultimately, it entered inertial navigation and plunged into the sea.

"Both our PL-12 and the US military's AIM-120C failed. The Carl Vinson Carrier Strike Group also suffered such a setback, causing missiles and close-in weapon systems to become ineffective."

Radar failure was not good news. In military technology, radar is the most crucial means of detection, bar none. Whether it's optoelectronic detectors or EODAS systems, their detection range cannot compare to radar, which can detect hundreds of kilometers (different frequency bands).

This would significantly suppress the early warning range, leading to faster contact with the enemy, less reaction time, and greater danger.

"Regarding infrared guidance heads, based on the voice recordings of pilots Zhang Peng and Liu Jun, and the battlefield video footage collected on-site, the aliens possess the ability to shift spectral signatures. It's like using decoy flares to lure away incoming infrared missiles, and even optoelectronic targeting can be deceived."

After speaking, Song Xizhu played the voices of Zhang Peng and Liu Jun and then showed the video recording of the infrared missiles being lured away by "optical decoys" on the big screen, giving everyone present a clear understanding.

Small discussions erupted again on the scene, especially from the technical departments and the troops. Many leaders felt the situation was tricky. These two tactics had effectively blunted humanity's spears, and it was only blunted, not broken.

At this moment, someone seated on the stage asked their question: [Comrade Song Xizhu, can heat sources also be shifted?]

"Yes, they can. Currently, the technology we use is infrared suppression to reduce infrared signals. However, infrared signals are also a type of light wave, just as electromagnetic waves are light waves."

"The aliens use methods we don't yet understand to shift light waves, creating realistic optical decoys. The electromagnetic clutter from their aircraft, according to our analysis, is likely a side effect."

Song Xizhu then played a video recording of a drone launching a chopped laser encoding, which ultimately entered the Sky Pit like a kaleidoscope.

"Spectral shifting phenomena and electromagnetic interference occurred around the Sky Pit. The chopped laser was shifted, and perhaps the Sky Pit we see is not its true appearance. Based on the data collected so far, their optical technology is superior to ours."

Vision is humanity's primary means of targeting. Some of the alien civilization's technology directly counters human physiological characteristics.

[Are there any solutions?] The commander asked again.

"Commander, this is not my area of expertise, so I cannot provide an authoritative answer. However, I can offer some suggestions regarding radar."

Song Xizhu's specialty was radar, and she could only provide interpretations within her professional scope. Although she had some superficial knowledge of other fields, in front of the distinguished guests below, it would be like showing off one's limited skills.

"The radars currently used on our warships and aircraft are 'optical region' radars, which are suppressed in areas with severe electromagnetic interference. Perhaps we can use longer wavelength centimeter-wave radars. When entering the 'resonance region,' target detection and RCS are irrelevant; it only depends on the target's size."

"The above are all speculations. Whether changing radar wavelengths is effective in areas with severe electromagnetic clutter still needs to be confirmed through practice."

After finishing her professional explanation, Song Xizhu saluted again and walked off the stage to her seat.

Another expert took the stage. After listening to the report and understanding the combat process, they offered their solution.

"If the aliens' technology is only as it is now, the solution is not difficult. Replace the guidance heads with combined guidance, or use only infrared guidance heads, and increase the warhead yield of the missiles."

"After the missiles are launched, they will be guided via data link relay. When severe electromagnetic clutter interferes with the radar guidance head, the system will switch to infrared guidance mode. Judging from the videos of pilots shooting down alien aircraft, the infrared decoys they deploy do not have a very long range. As long as the explosive power is sufficient, it will splash onto the target."

This is similar to sniper grenades. If the US improves shooting accuracy, then East University increases the kill radius. The result is the same anyway.

This section is not included in the main text: Light waves belong to the visible light portion of the electromagnetic spectrum, with a frequency range between 3.9×10^14 and 7.5×10^14 Hertz, corresponding to wavelengths of approximately 400 to 760 nanometers. Infrared rays are located at the outer edge of visible red light, with a wavelength range of approximately 0.76-1000 micrometers. They are all light waves.

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

Ka = πD/λ. When Ka is less than 0.5-20, it enters the resonance region. When the target size is roughly the same as the wavelength, regardless of stealth design, as a conductor, it will become an antenna and affect electromagnetic waves.