Chapter 555 Project Level: Top Secret! (Part 2)
Although it can be determined from real-life feedback.
The weather Doppler radar can indeed scan the body trajectory without activating the fire control detection radar.
But everyone knows it.
Rabbits have always been the ultimate stable dogs.
Therefore, Ye Duzheng and Sun Junren did not report the completion of the verification to Li Jue as soon as the J-6 flew overhead.
Instead, wait until the other party returns.
The liaison officer was asked to confirm the information with Qingshui 14 Base again to ensure that everything was correct before going to see Li Jue.
After all, from a probability perspective.
The Baobuqi J-6 has actually discovered the radar scan, but there was a temporary problem with the communication equipment, so there was no reply?
Although the probability is very low.
But the possibility does exist.
".So this is the reason why you made Comrade Bingqiong and I wait in vain for an hour?"
Inside the main factory office.
Looking at Ye Duzheng and Sun Junren with expressions of "I did this on purpose".
Li Jue couldn't help but rubbed his temples with a headache, and finally sighed helplessly:
"Okay, just wait in vain. Anyway, we have to contact Qingshui again."
"Old Sun, now we can be 100% sure that the weather Doppler radar is capable of accurate trajectory detection?"
Sun Junren nodded when he heard this, took out a document from his body, and placed it in front of Li Jue.
Li Jue took advantage of the situation and looked around.
I saw that this document was densely filled with various data, many of which Li Jue had only roughly heard of the terminology.
But it is not difficult to see it as a whole.
This data is divided into left and right columns, which seems to be a pattern of mutual comparison.
So Li Jue raised his head and looked at Sun Junren:
"Old Sun, is this...?"
Seeing this, Sun Junsheng stretched out his thick index finger, made several gestures on the document, and explained:
"Lao Li, this is a comparison between the data we measured and the flight parameters recorded by the J-6's onboard positioning beacon."
"Well, this column is the speed. This column is the angle. This column is the flight altitude."
"According to the comparison results, the measurement accuracy error of meteorological Doppler radar is about 0.63%."
"Although this value is a full 0.5 percentage point higher than the 0.12% of the fire control radar, it is already very gratifying - the error in our previous guess was even as high as 5%."
Hear this.
Li Jue and Qian Bingqiong's faces suddenly showed joy.
True.
In the face of a height difference of 10,000 meters, the error of 0.63% may actually be as high as 60 meters.
But don't forget.
The artillery shell designed by Xu Yun is not simply a free fall, but has a certain direction change tracking function.
The essence of tracking and patrolling the enemy is actually to calibrate the error.
Therefore, in the actual combat stage, the 0.63% error is really not a big problem and can be made up for by tracking methods.
That is to say
That weather Doppler radar can indeed complete a relatively accurate body trajectory scan without activating the fire control detection radar.
This is undoubtedly extremely exciting news.
Not an exaggeration.
Regardless of whether U2 can be shot down this time.
This effect of the weather Doppler radar alone is enough for the rabbits' national defense career - at least in terms of accurate prediction of fighter jet trajectories, there has been great progress.
Think of this.
Li Jue couldn't help but take a deep breath and continued to ask Sun Junren:
"Old Sun, I'm not very familiar with radar, so I have a question I'd like to confirm with you."
"Is there any technical difference between the detection radar we currently have on the J-6 fighter jet and the equipment used on the U2 reconnaissance aircraft?"
"How should I put it? Technical differences definitely exist. After all, China started late, and the barriers to technological blockade are actually placed in front of us."
Sun Junren nodded calmly, but soon changed the subject:
"But this technical difference mainly exists in the accuracy of the equipment, which is usually called the number of decimal points - but the actual impact is definitely greater than the decimal point."
"As for induction recognition, it's hard to say about other instruments. At least the detection radar will not be able to identify it across the sea, but the domestic radar will have no feedback."
"Because the detection radar captures radio waves within the S-band, the signal of this frequency only exists "whether it is present", but not "whether it can be"."
"The radar on the other side of the sea is at most more advanced than us and can in turn lock the specific position of the fire control radar, and then that's it."
If Xu Yun were here at this time, he would definitely give a thumbs up when he heard this.
After all, what Sun Junren said is not only true at the moment, but also applicable in future generations.
no way.
The power of the fire control radar is too high, and the electromagnetic waves emitted cannot be modified.
Not to mention the rabbits of later generations, even Asan and even Ethiopia can detect the fire control signal across the sea.
Therefore, future generations can only play games in terms of guidance. In many cases, fire control radar has even directly become a final warning method to be used openly.
In 2023.
On the contrary, the technical gap between phased array radar and early warning aircraft radar is very large, and the main areas of contention in the information battlefield are also in these two directions.
His eyes returned to reality.
After hearing Sun Junren's explanation.
Li Jue just touched his chin thoughtfully and said clearly:
"That's it."
Then he turned his head and looked at Liu Youcheng, director of the chemical laboratory aside:
"Old Liu, how is the brain secretion of the donkey you experimented with?"
"It's the apical secretion of donkeys."
Liu Youcheng first corrected Li Jue's statement error, and then also took out a handwritten report and explained:
"According to our experimental results, the donkey's apical secretion will indeed form a gel-like substance after leaving it with benzoquinoline for half an hour."
"This kind of glue is somewhat similar to the syrup used by sugar blowers, but the binding degree is higher than that of syrup, and even stronger than glue."
"The colloid can then be processed by casting to form a rubber-like translucent film."
"Although this membrane is very thin, it has excellent ductility and fully meets the requirements of the airship capsule."
At this time, Liu Youcheng had been informed of the relevant details of the development of the airship, so when the colloid material produced by apical secretion was introduced, his resistance was far less strong than it was at the beginning.
Then Li Jue looked at Liu Youcheng again and felt that this old acquaintance's face seemed a little strange, so he continued:
"Old Liu, did you encounter something else in your experiment? Something doesn't seem right about your face?"
"If you have any questions, you can feedback them. The more detailed your introduction is now, the clearer the organization will be able to grasp the overall situation."
Unexpectedly, when Liu Youcheng heard this, he quickly waved his hand and said a little awkwardly:
"No, no, no, Director Li, you misunderstood."
"We didn't find anything unusual during the entire experiment. It was mainly because I had an idea."
Say it.
Liu Youcheng looked around the scene, then continued to speak after careful consideration:
"Didn't I say it before? After processing, the colloidal substance will form a very thin but very elastic translucent film."
"I personally feel that this kind of membrane is very suitable for use as a condom for couples, but I feel that it is not appropriate to talk about it in this situation, so."
Li Jue, Qian Bingqiong and others were startled when they heard this, and then burst into laughter after they recovered.
He thought Liu Youcheng had some technical difficulties, but unexpectedly he actually thought of that aspect
Of course.
The situation mentioned by Liu Youcheng can indeed be reported together. The current demand for condoms in China is actually quite large - after all, there are no entertainment options these days.
Most couples start to tuck and tuck together slowly at night, and spend the spring night warm under the hibiscus tent.
Think of this.
Li Jue suddenly realized another thing:
If that's true
Then the importance of these native donkeys is very high.
To know.
Currently, the country is planning or has already introduced some exotic donkey breeds, and it will take about ten years to select a high-quality donkey breed for official introduction.
But if only local donkeys can provide that apical secretion.
Then some protective measures must be taken.
However, the planning of this kind of thing was not within Li Jue's scope, so the idea only briefly passed through his mind and then quickly dissipated.
"."
Then Li Jue took a deep breath and turned to look at Qian Bingqiong:
"Comrade Bingqiong, that is to say, the preliminary feasibility verification we mentioned before only leaves the ultra-wideband proximity fuze technology"
Dong Dong Dong——
Li Jue didn't finish his words.
There was a knock on the door outside the office.
Then there was the report from Li Jue’s assistant Zhou Cai:
"Director, Engineer Luo from the radar team is downstairs and said he has something to report. Is it convenient for him to come up now?"
Li Jue was suddenly startled.
Immediately he looked at Qian Bingqiong again and said quickly:
"Xiao Zhou, please ask Engineer Luo to come up quickly!"
The Engineer Luo mentioned by Zhou Cai is Luo Peilin, a communications expert whose ability and reputation are almost the same as those of Sun Junren.
The comrades who Qian Bingqiong mentioned before, "please ask some comrades to study the theory of ultra-wideband proximity fuze", are referring to Luo Peilin himself - Luo Peilin, Sun Junren and others came from the capital to set up the meteorological Doppler. Radar's 'reinforcements', Qian Bingqiong asking him for help does not exceed his authority.
Less than a minute passed.
Zhou Cai led Luo Peilin into the office.
"Director Li, Comrade Bingqiong, Lao Sun, Director Liu."
After entering the house.
Luo Peilin first said hello to everyone, then quickly came to a few people and said to Li Jue:
"Director, Comrade Bingqiong, we have obtained the analysis results on the theory of ultra-wideband proximity fuze technology."
Li Jue quickly straightened his expression:
"Engineer Luo, please speak quickly."
Luo Peilin took out a palm-sized notebook with pages turned upward, and quickly flipped to a bookmarked page:
"After receiving the notice from Comrade Bingqiong, our center immediately conducted a simulation analysis of the theory proposed by Comrade Han Li."
"We first used equipment to simulate a 6GHz bandwidth and at the same time reduced the signal-to-noise ratio to -15dB. The final 12-meter radiation spectrum density was approximately -44.2dBm/MHz."
"At the same time, this signal model has high multipath resolution. It is not like the current radar receiver that increases the diversity multiplicity to capture enough signals, and there will be no frequency selective fading."
".Stop, stop, stop!"
Looking at Luo Peilin talking eloquently, Li Jue, who felt that he was about to grow a brain, quickly interrupted him:
"Lao Luo, just tell me the final conclusion."
"."
The expression on Luo Peilin's face suddenly froze, and then he looked at Li Jue with a regretful look and sighed:
"Okay. Conclusion"
"That means the theory of ultra-wideband proximity fuze technology is indeed feasible."
As everyone knows.
Shannon proposed the famous Shannon channel capacity formula in 1948.
In an additive Gaussian white noise channel, the upper limit of the system's error-free transmission rate is:
C=B×log2(1+SNR).
Where B is the channel bandwidth and SNR is the signal-to-noise ratio.
Therefore, even in this era, it is not difficult to achieve precise mathematical derivation.
In the later generations of Xu Yunlai.
The concept of ultra-wideband, that is, UWB active proximity fuze technology, has become a very valuable research direction in the military field.
Of course.
The ultra-wideband proximity fuze technology in 2023 is definitely different from Xu Yun’s description. After all, there are no DSP chips in this era—this thing didn’t come out until 1982.
Therefore, Xu Yun made a certain degree of optimization in later theoretical aspects. Anyway, the core is the Shannon channel capacity formula.
At this moment.
Inside the office.
"."
Hearing this result from Luo Peilin.
Even though he was prepared in his heart, Li Jue still couldn't help but clenched his fists.
Just a few minutes ago, he was planning to tell Qian Bingqiong that only one of the three verifications had yet to produce a result.
It didn't take long before Luo Peilin put the preliminary analytical conclusion of ultra-wideband proximity fuze technology in front of him.
That is to say
The three verification links of donkey apical secretion, aircraft trajectory detection, and theoretical analysis of ultra-wideband proximity fuze technology have been completed at this time.
All established!
Think of this.
Li Jue couldn't help but pick up the enamel cup on the table and take a sip of water. After calming down, he said to Qian Bingqiong:
"Comrade Bingqiong, what do you think?"
Qian Bingqiong nodded slightly and understood Li Jue's thoughts:
"Director Li, please report to your family."
After saying that, Qian Bingqiong paused and suddenly thought of something:
"Oh, by the way, one more thing."
Li Jue's original palm had already covered the phone receiver, and he immediately stopped when he heard this:
"What happened?"
"."
Qian Bingqiong was silent for a moment and said to Li Jue:
"Han Li mentioned it to me when we parted before, saying that if we are going to adopt this plan, we hope that the code name of the airship platform can be named according to his idea."
"But we haven't even told you about our project before, so I didn't tell you about it."
Li Jue blinked when he heard this and asked:
"What name?"
Qian Bingqiong first made a gesture in the air with his hands and explained:
"According to the plan designed by Han Li, the airship can only carry up to four missiles or special artillery shells of about two meters."
"At the same time, in order to facilitate the calculation of ballistics and wind resistance, these four shells must be pointed vertically downward, looking like four vertical long swords."
"So he gave this platform a special name, called"
"The Immortal Killing Sword Formation."
"The Immortal Killing Sword Formation?"
An hour later.
Capital Second Machinery Department.
When Liu Bosheng heard Li Jue's report on the phone, he couldn't help but reveal a hint of surprise:
"Isn't this a move from "The Romance of the Gods"?"
Li Jue, who was on the other end of the phone, also smiled, looked up at Qian Bingqiong and said:
"Yes, Comrade Bingqiong and I discussed it. Maybe Han Li heard it from some young workers while chatting."
"Nowadays, there are not many entertainment methods in our base. The young workers usually either sing and play table tennis, or get together and read paper novels."
"It's normal for young people to have some unique ideas."
Liu Bosheng:
"."
He understands the logic, but this code name is indeed a bit strange.
To know.
Rabbits these days are still "conservative" after all, and have not awakened to the Chinese romantic painting style of later generations.
Code names such as Tiangong, Chang'e, and Wukong didn't appear at all.
Today's project codenames are basically numbers.
For example, 596, 640 or something.
That is, the year + month, or the year + the number of projects of the year, or a name like Long March Rockets with obvious struggle and inspiration.
This is the first time that the painting style of Zhuxian Sword Formation is obviously fairy-like.
However, thinking about the attitude of his superiors towards Han Li, Liu Bosheng finally nodded:
"Okay, Lao Li, I will report this situation to the chief and others."
After hanging up the phone.
Liu Bosheng raised his eyebrows and left the office with the documents.
Six hours later.
A telegram was sent back to Li Jue and others:
From now on, the base will immediately set up a special project team, and the capital will once again dispatch some reinforcements for technical support.
The project must develop the required equipment within a maximum period of no more than two months, and then choose the opportunity
Hunting U2!
Project Level
Top secret. Code name
Zhu Xian! !
(End of chapter)