Chapter 1364 Electromagnetic puzzle
After hearing the conclusion given by the other party, Guo Lin showed a slightly shocked expression.
This time it was definitely not performed.
He originally wanted to make Liao Yongcai feel a little involved so that he could work together in the future, and helping was secondary.
As a result, others really made a big one.
"Someone interferes..."
A few seconds later, Guo Lin, who came to his senses, subconsciously looked at the map of Longyuan Province posted on the wall of the control room:
"But everything around here Is it the Gobi desert, and it is also inland? ”
For him, phase conjugated interference cannot be regarded as a new term.
This technology can omit complex encoding and identification processes and directly generate quasi-real-time interference pulse sequences, so that the power density when the interference pulse sequence returns to the receiver is large enough, thereby disrupting the normal decoding process of the radar system. .
But no matter how much you omit it, you will eventually need a considerable equipment.
And because it is still a forwarding interference in nature, the device must be placed where it can receive the interference target signal.
It is usually some kind of camouflaged fixture, or an airplane.
But the former does not meet the surrounding environmental conditions at all.
As for the second possibility...
It would be a bit likely to say that a stealth plane had come in from the west ten years ago.
Now even F22 can be caught over the East China Sea, it is obviously unnecessary to consider this possibility.
The young engineer next to him quickly proposed a new idea:
"Is it possible that it is through ionosphere reflection..."
The result was that Guo Lin was shaken halfway through the words Shaking his head interrupted:
"Phase conjugation interference has certain requirements for directional accuracy. It was originally used in lasers, which has only gradually expanded in other fields in recent years... The scattering effect of the ionosphere is too great, do you think of those superhorizon radars? The detection capability and error are calculated in units of hundreds of kilometers, and it is barely enough to use it for communication. It is not realistic to achieve accurate interference. "
"Then... has someone penetrated nearby?" >
It was another person who made the assumption, but it was also quickly denied.
Looking at the scene in front of him, Liao Yongcai showed a proud smile.
The ability level of the younger generation of technicians is unquestionable, but people who grew up after the 1980s are usually inexperienced and lack some sensitivity to imaginary enemies.
This means that older people like him still have the energy to play, and they will not be completely eliminated.
"In my experience, it is more likely to be from a satellite."
Liao Yongcai spoke to end the discussion:
"In 1983, I was at Xuanhua Radar When he was serving in the station, he encountered a similar situation..."
Like all those who have been aged, he likes to tell his younger generations about his youth.
But he also knew that it would easily make people feel bored if they were chanting every day regardless of the situation.
And the occasion in front of me is the time to perform.
As sure, including Guo Lin, the dozen people in the entire control room listened very seriously, and no one interrupted.
The so-called Xuanhua radar station is the external statement of the 7010 radar back then.
Liao Yongcai served there for a period of time when he was young. The original plan was to let him, as a two-way backbone of technology and management, come to Maodao to pull up the second strategic early warning radar regiment.
But the sudden policy changes have left everything missing.
No one could have thought that after more than twenty years, the experience he accumulated in the last era would come in handy one day.
After listening to Liao Yongcai's explanation, Guo Lin temporarily agreed with the other party's statement, but was still a little confused: "But if there is a satellite specifically targeting us, will the interference intensity be? It seems a little..."
He glanced at the phase noise spectrum of Array No. 3 again.
"A little too weak?"
Liao Yongcai followed the back part.
"Yes... If our radar had not been completed and was in the debugging state, then such interference would be likely to be filtered out by the system as clutter."
Guo Lin still frowned; "And in fact, even if the interference source cannot be found in the end and continues to be treated as natural background noise, it will be delayed at most three or four days, and several rounds of coherence detection and iterative calibration. Things seem to be completely unworthy of such a big fight.”
But Liao Yongcai shook his head: "Phase conjugation interference must be intentionally released, but it may not be specifically targeted at us, nor can it be ruled out that it is a test or test... Of course, this is not something I can analyze Part of it needs to be left to more professionals to judge. "
Even he himself has to admit that long-term employment in such a closed radar station has indeed greatly affected his acquisition of new ones The ability to information.
The control room fell into silence again.
Only the buzzing background sound is left, and the sound of dripping sounds between electronic devices.
"Mr. Guo, do you have to report this?" asked the young engineer who first brought the log files.
They had always judged that it was natural background interference, which was a regular part of the radar debugging process. Naturally, the technical team began to try to solve it in one go.
But if it is based on Liao Yongcai's speculation, it involves the issue of overseas forces.
Even if the specific solution is not different, the superior must know that this is the case.
No mistakes, one song, one content, one in 6, one book, one bar, one reading!
"Yes, you have to report it."
Guo Lin nodded:
"You write a report as soon as possible and deliver it to the group headquarters, Academician Chang and others. They also delivered it separately. In the past."
The decision to build a national early warning and missile defense system itself comes from the highest decision-making level and is completely independent of any other project. The military even has plans to establish a new military or service to be responsible for these Strategic support level tasks.
But this radar is only a pre-task in the pre-task. In order to facilitate cooperation with hypersonic weapons as the "spear", it is included in the same execution plan in management.
"Then let's follow..."
"First follow the standard procedures. At least for the moment, this intensity of interference will not make the debugging work unable to be carried out."
Guo Lin said as he unbuttoned the top button of the work clothes to make his breathing smoother:
"But this is really weird... Remember to save the running logs for the past few days. Also, don't be afraid of delaying your hour, leave a few more backup points, so that even if there are any changes in the future, it will be convenient for adjustments..."
…
Due to the delay problem caused by poor communication, Chang Haonan did not receive a report from the Maodao radar station from the correspondent until he returned to the camp of the Mass Effect Range that night.
"Academician Chang and General Manager Guo Lin and Guo personally issued a report, saying that their radar debugging process was disturbed and it is expected that it may delay 3-4 days."
When When he just heard that "the radar debugging process was interfered with", he thought it was caused by his side for a moment.
But this thought was immediately thrown behind.
Their work has been basically in a silent state so far. Only after each group of font-shaped antenna array is arranged will a startup test be conducted, but it is only a set of standard signals, which cannot affect the radar hundreds of kilometers away. equipment.
Take a step back, even if it can have an impact, the test process will only last for a moment without repeating it, and will definitely be filtered out directly.
Thinking of this, Chang Haonan felt relieved and took the message from the other party and read it.
"Side lobe suppression rate decreases..."
"Coherence detection is abnormal, and regular depressions are formed in the 1.14GHz frequency band..."
"Suspect the interference signal comes from the satellite..."
He subconsciously raised his head and looked at the night sky outside the window.
This place is deserted within a radius of hundreds of kilometers and has not been subjected to much atmosphere and optical pollution from human activities. Therefore, when the weather is sunny, you can only see the dazzling star river like the one in the photo with your naked eyes. .
It's just that the weather is frequent recently, so there is only a gray area when you see it.
"Xiao Wu."
He came back to the correspondent again: "Send the abnormal time of the radar signal to the Beijing Aerospace Measurement and Control Center in another name, so that they can provide a copy of the cross-correlation detection between these times and satellite orbits as soon as possible, I'll write you a list of satellites later."
"Yes!"
After watching the other party return to the small room next to him, Wang Hongrang spoke in shock:
< br>"Academician Chang, you are preparing..."
He has worked in the Second Artillery Force for half his life and does not understand radar technology very much, but at least he has learned some basic circuit theories and has seen the guys in the air defense force.
Now someone just looked at the text description in the report and started to assign tasks so confidently, which really challenged his worldview.
"I may have to go to Maodao radar station tomorrow. Director Wang, just continue to do your homework according to today's new plan..."
(End of this chapter)
(The end of this chapter) >