The Red Era, the Opening University Speech

Chapter 228 He just writes, he doesn't have to memorize

"I agree too. From an educational perspective, this material is almost impeccable," Professor Xie Ding also said.

But he added, "But there are 12 professional books. Isn't that too many?"

"It's okay, it's just 12 books. I'm planning to write two more." Li Mu said with a smile.

It is not so easy to acquire the ability of software development after four or five years of undergraduate study. These 12 books are just an introduction.

Since he was copying anyway, he planned to copy a few more books.

As for too much?
He just needs to write and doesn't have to memorize anything, so what is there to worry about?

……

After the meeting, Li Mu left the Ministry of Culture and Education.

He has already decided on the general direction, so he can just leave the editing work to Huang Kun and the others to discuss.

As for writing 12 books by hand, it is possible but not necessary.

After leaving, he thought about it and asked Guan Jianmin to drive to the Radar Research Institute.

Because the place was in the suburbs, he could see the frozen river through the car window, which made him suddenly want to imitate his superiors and go swimming in winter.

Before he could make a decision, the car quickly stopped in front of the gate of the Radar Research Institute.

After being checked by the guards, I went inside.

He first went to the laboratories of several professors sent by the Semiconductor Research Institute to check the progress.

The semiconductor optimization and upgrade of the range gate circuit, single-sided waiting filter, main beam clutter suppression circuit and detection filter have basically been completed.

The next step is to conduct testing through a computer simulation platform.

However, Li Mu basically did not need to intervene in this part. At this point, their mission to assist in the research at the invitation of the Radar Research Institute had been basically completed.

However, after walking around twice, he found Peng Shilu who was taking a short break in the office and said, "I think the structure of our Doppler radar can be optimized."

"Optimization, how to optimize?" Peng Shilu was about to go to the laboratory when he was pulled down by Li Mu. He was a little confused.

After all, although Li Mu often came over, he basically just took a look and left, and rarely looked for him.

Li Mu said: "Don't you think that the composition of these key parts, the transmitter, receiver, antenna system and frequency tracker, is a little outdated?"

"Backward? How is that possible? Emperor M and Big Brother both do research in this way." Peng Shilu said in surprise.

Although Big Brother withdrew a lot of information, some basic things were still left behind.

The most advanced Doppler radars in the world today all have this structure, so there is no possibility of falling behind.

Li Mu smiled slightly and said:

"I'm not saying we're behind Emperor M and Big Brother, I'm saying we're behind the level of technological development in our country."

"With our current technology, we can upgrade the Doppler radar."

"For example, relying on supercomputers, the composition of these key parts can be optimized and upgraded to radar data acquisition subsystem, radar product generation subsystem and main user interruption subsystem."

After he finished speaking, Peng Shilu stopped lifting the cup to drink water in mid-air, and he didn't even notice that the water accidentally spilled out.

"Is this an idea you have had for a long time?" Peng Shilu said in disbelief.

It even has a name, so it definitely can't be something that was thought up on the spur of the moment.

Li Mu explained:
“It existed a long time ago, but it was not perfect at the time.”

“The existence of computers can simplify and speed up many cumbersome processes.”

"The same is true for the automated guidance system and the Doppler radar."

"Okay, okay, I'll call people over for the meeting!" Peng Shilu was so excited after getting the confirmation that he almost jumped up.

If you are going to do something, do it to the best of your ability. Who likes to follow behind others and eat dust?

As soon as he finished speaking, his men rushed out without caring about the dignity of a director at all.

Li Mu opened his mouth to call out to him, but the man was gone, so he had to give up.

...In fact, he really came up with this idea on the spur of the moment.

Mainly because I just took a stroll and saw that the equipment in the Radar Research Institute was indeed a bit too simple.

He admired the contributions these predecessors made to the scientific research cause of the motherland under such difficult and arduous circumstances, so he could not turn a blind eye.

The performance of radar can be greatly improved by simply making a few components semiconductor, but this is not enough.

……

Not long after, Peng Shilu gathered all members of the Radar Research Institute in the conference room and then returned to the office.

Looking at Li Mu, who seemed to be sitting on the sofa with his eyes closed in deep thought, but was actually frantically searching for information, he said, "Advisor Li, let's go. Everyone is waiting."

"Okay!" Li Mu slowly opened his eyes and said.

……

Radar Research Institute, inside the conference room.

A group of experts and professors sat in their seats, talking to each other in low voices.

It was not until Li Mu and Peng Shilu appeared at the door that the noisy discussion inside suddenly quieted down.

Everyone's eyes fell on him at the same time, full of passion.

If Li Mu proposed optimizing and upgrading the key structure of the Doppler radar right after he arrived, even with the background of Master Qian Wu, they would not believe it at all.

But now there is a successful precedent of computer simulation platform, and the semiconductorization of components such as range gate circuits and single-sideband filters is about to be completed.

All these things fully proved Li Mu's ability.

It also makes them full of expectations.

……

Li Mu stood on the stage and nodded slightly to Peng Shilu. In just a moment, he had almost organized what he was going to say next.

The latter immediately said: "Everyone, I believe you all know the reason for this meeting. I will not waste any more words. I would like to invite Consultant Li to explain the design structure of the new Doppler radar to us."

As soon as he finished speaking, there was a burst of warm applause from the audience.

After Peng Shilu finished speaking, he immediately handed the microphone to Li Mu and quickly stepped aside.

Li Mu said: "I wouldn't dare say it's a new type, it's just using computers to optimize and upgrade the old structure."

This sentence caused a light laugh from the audience.

After knowing Li Mu for a long time, everyone also knows that he doesn't like to talk too much.

"Consultant Li, please don't be so modest. Just speak up. We all want to hear your ideas," said the deputy director Jiang Nanying with a smile.

Others also spoke up to agree.

Seeing this, Li Mu stopped being polite and said:
"Let me first introduce the key parts after the upgrade, which are the radar data acquisition subsystem, radar product production subsystem and main user terminal subsystem." "The radar data acquisition subsystem is responsible for generating and transmitting radio frequency pulses, receiving the scattered energy of these pulses by the target objects, and forming basic data through digitization."

"The radar product production subsystem is the control center of the radar. It processes the basic digital data collected from the radar data acquisition subsystem, generates various products, and then transmits them to the main user interruption subsystem..."

……

He first introduced the Doppler radar that was later developed and improved, and then elaborated on the possibility of its realization.

The computing power of current supercomputers is sufficient to realize the initial research and development of this topic.

After listening to this, applause broke out in the conference room again.

Peng Shilu said: "Since Consultant Li has such a perfect idea, I think we can give it a try."

"I also think it's feasible. We have underestimated the progress of our country's computer technology before. By taking advantage of supercomputers, the optimization and upgrading of Doppler radar is highly feasible!" Jiang Nanying followed up.

The other experts and professors also spoke up to echo his opinion.

Seeing this, Peng Shilu immediately stood up from his seat and announced:

"Okay, it's decided then. Starting today, we will set up three teams to study the radar data acquisition subsystem, radar product production subsystem, and main user terminal subsystem respectively."

"Comrade Yu Xingguo, Comrade Zhang Haishi, and Comrade Li Huamin will serve as the leaders of the three groups and preside over the research and development matters of each group."

"Comrade Li Mu, as the chief consultant, will guide the research throughout the process. Do you have any objections?"

"No." Everyone nodded without any hesitation, and they were eager to start the research work immediately.

But this is obviously a bit unrealistic.

The research on the three radar subsystems also falls within the scope of software design, and also involves knowledge and applications in multiple fields such as signal and information processing and communication technology.

In order to truly establish the project, we need to send people from the Semiconductor Research Institute to help.

After Li Mu told this to Peng Shilu, the latter pondered for a moment and then said:
"Advisor Li, how about this? Can you let our research team move into the Semiconductor Research Institute to conduct research?"

"As you know, we still only have one Model 01 computer in our institute. Its computing power is far inferior to that of a supercomputer."

"Instead of running back and forth later, why don't we go over there?"

"Okay, then you apply to the higher-ups, and I'll go back and tell Director Wu to make preparations first." Li Mu thought about it and agreed.

After several months of construction, the new laboratory building in the Semiconductor Research Institute has been completed, and it is completely possible to free up a few laboratories for use by the Radar Research Institute.

Afterwards, he discussed the details of the subsequent joint research with Peng Shilu before going downstairs and leaving.

……

Back to the Semiconductor Research Institute.

He first talked to Wu Youxiang about the joint research with the Radar Research Institute. Li Mu then went to the four software design groups to check the research and development progress of computer-aided software such as CAD and CAM.

No surprise, no surprise.

Even with the guidance he provided, completing these four software designs is still a big project. Steady progress is already a very good situation.

After encouraging the researchers who were working hard, Li Mu went to find Du Fei and others.

……

Thanks to the construction of the new laboratory building, they have now moved to a new laboratory.

When he came in, Du Fei and two other assistant researchers were testing the shielding layer materials of the induction cooker under the guidance of Professor Gu and Professor Mo.

But looking at their serious expressions, they obviously encountered some trouble.

Not long after, Du Fei raised his head and said to Professor Gu and Professor Mo: "No, although the radiation shielding effect is much better, there is still a risk of leakage over time."

"It seems that there are still loopholes in our experiment that we have not considered." Professor Gu and Professor Mo shook their heads slightly.

Du Fei and the other two also reflected on themselves and felt that they had not done well enough.

"It is also possible that there is something wrong with my plan." Li Mu spoke up, interrupting everyone's silence.

At this time, everyone in the room noticed that he had been standing at the door for a while.

Du Fei said: "How could it be that there is something wrong with your plan, Consultant Li!"

"Yes, Consultant Li's plan is detailed and well-reasoned. The reason it fails to meet the requirements is probably because we have omissions," Professor Gu said.

The others also nodded in agreement.

Li Mu smiled helplessly and said, "Okay, okay, let's not talk about this. Let me take a look first."

As he spoke, he walked forward and checked the data of its metal conductive lining.

In the solution he gave, the recommended choices for metal conductive linings were copper and aluminum.

Both of these are widely used electromagnetic shielding materials, have good conductivity, and can effectively reflect high-frequency electromagnetic waves, thereby reducing electromagnetic wave leakage and interference.

In order to reduce costs, Professor Gu and Professor Mo chose to use aluminum as the raw material.

Aluminum has the characteristics of good conductivity and light weight, and is often used in the casing and shielding layers of electronic equipment in later generations.

After staring at the experimental data for a long time, Li Mu roughly understood why the results were not so ideal.

Professor Gu and Professor Mo did carry out the design and experiments completely according to his plan, but with the current level of technology, they could not achieve the results he expected.

Although the metal conductive lining was invented in 61, it was not until the 70s that Emperor M made a breakthrough in technology and completely solved the problem of induction cooker radiation.

Thinking of this, he immediately said: "It is indeed my fault for not considering it carefully. It is quite difficult to make qualified metal conductive linings with this process."

"I'll give you a new process plan."

"This solution has five steps, providing a metal sheet, forming a photoresist layer, etching process, forming a second photoresist layer and a second etching part, and completing a shielding layer."

……

Li Mu did not hide his mistake, but admitted it directly, and then quickly came up with a new plan.

Upon hearing this, Professor Gu, Professor Mo and the others were slightly surprised, but did not think that this issue was a big deal.

In scientific experiments, taking the wrong path is actually the norm. It is a bit strange for someone like Li Mu to never make a mistake.

What's more, this is not a mistake at all. It's just that Li Mu overestimated the current level of technology.

After giving the new industrial process, Li Mu followed everyone to conduct experiments.

Even though there were no major problems throughout the process, he still stayed until the evening before leaving.

In the study, he sat in his seat, reflecting on the mistakes he made today.

Although this little oversight is insignificant, we should still try to avoid it.

We have achieved certain results in foreign exchange earnings, but we still cannot relax.

A large amount of research requires support from high-precision instruments and equipment, which cannot be produced domestically and can only be purchased from abroad.

(End of this chapter)