Chapter 452: Big Error
At this point, Liu Haizhong showed off his intelligence: "Also, if you can't calculate, don't calculate! It's 35 yuan! Not 2 yuan! How can there be such a big difference? I see, the second and third children are so stupid, it's up to you! Fortunately, the eldest child follows me, otherwise this family would be ruined!"

As for Liu Haizhong, he truly loves the eldest brother, but when it comes to the second brother, there is not much love left.

His wife is used to being completely suppressed by him, so what else can she do? She just lets it be.

Liu Haizhong turned on the radio while muttering, "This mission in my life is finally halfway completed. Go away, don't disturb me while I'm listening to the radio. From today on, I have to listen carefully to the policy documents from above and remember them well."
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The matter between Xie Jianye and Liu Haizhong should have been settled, but Deputy Director Li came to see Gao Zhendong again.

The reason for my visit this time has nothing to do with the two things mentioned above. They are all trivial matters, the kind that can be thrown away after being mentioned. It would make you seem petty if you keep mentioning them every day.

He came here this time for other serious matters.

"Zhendong, we received a notice from the department that your Third Factory has special circumstances and it is no longer appropriate to share a confidential room with the factory. We are going to build a separate confidential system for you. The department will provide some personnel and equipment, and our factory will also provide some personnel. After all, this is our factory, and we have a better grasp of the internal situation. If you are not familiar with confidential work, problems will arise."

Gao Zhendong felt puzzled, because he didn't find the confidential room inconvenient. Although the factory was not small, it would only take him a few minutes to ride his bike there if there was an emergency.

Defense Work Committee: Nonsense, is that a matter of convenience or inconvenience? Uh… Besides, it is indeed a bit inconvenient, and the leaders are anxious waiting.

But since the department has proposed it, there must be a reason for it. It’s not a bad thing to run less.

"That's great news. The department really cares about our factory's work. All the factory leaders have worked hard to fight for working conditions for us, haha."

Deputy Director Li shook his head: "No, we know what's going on. This has nothing to do with us. You earned it all by yourself. Haha, don't put the blame on me. I came here just to discuss this with you. Do you have any suggestions for the staff in this confidential room?"

Hmm? What do you suggest about this matter? Looking at Lao Li's expression, Gao Zhendong understood a little.

The old guy came here for his nephew, his cheap student.

Gao Zhendong smiled and said, "Your factory can make the arrangements for this matter. We have no objection."

Who can represent the factory here? It’s Lao Li.

Old Li also smiled: "Well, the factory's intention is to mainly select the best from the third branch factory. After all, the comrades in the branch factory are most familiar with the situation. In that case, the factory will issue a list, and you and Old Yan will review it when the time comes."

Only at this time did he mention Director Yan.

In fact, he just made arrangements to put Xiao Li on the list, and Gao Zhendong would definitely not stop him.

However, he is a shrewd man and has his own set of rules for doing things. In his opinion, since Xiao Li calls Gao Zhendong teacher, he cannot arrange Xiao Li's use directly. Whether it is good or bad, he has to greet and discuss it with Gao Zhendong first.

Gao Zhendong nodded: "Okay, you arrange it."

After talking about this matter, Lao Li mentioned another matter.

"By the way, Zhendong, the crystal and furnace of 1761 are almost ready for mass production. Can we take it back for production?"

This "furnace" does not refer to the single crystal furnace that is already in production at the Third Plant, but to the pressurized recrystallization furnace used for mercury cadmium telluride production.

Gao Zhendong smiled and said, "That thing does need to be produced continuously, but generally speaking the output is not much, and the thing is not big either, so it is of no help to the factory in completing the annual production task."

Deputy Director Li had a lot of thoughts: "The output value is not high, but it is of great significance. And when it comes to equipment production, we are definitely better at it."

Is it the output value that I, Lao Li, value? I value this thing because it is special.

Gao Zhendong thought about it and realized that if Institute 1761 wanted to produce this furnace, with the personnel and equipment they had, it would all depend on manual rubbing, which would definitely not be as good as the workers and production equipment of the third factory.

From this perspective, Deputy Director Li’s proposal does make some sense.

"How about this, we take the furnace and leave the subsequent production of crystals to them. Each company gets a share, and we can just take a share of it. At least we have to leave them with a flagship product. They are professional in the production and improvement of crystals. They have cooperated with us several times, and in addition to honors and achievements, we have to leave them something practical. We have other things, so we don't lack this."

Deputy Factory Director Li gave a thumbs up: "Good! Zhendong, you are good in every way, but this is even better, you have a great vision and generosity!"

What a wonderful person! Quite a few people may habitually use pre-modification such as "that's all you are good at" when praising him, but Lao Li's words are really flawless. Lao Li is satisfied to be able to take over the production of the pressurized recrystallization furnace, and he also understands the principle of sharing the cake together.

After seeing off Old Li, I received a call from the confidential office, "Chief Engineer Gao, please come here quickly, there is an important conversation to be had."

Well, it seems that it is necessary to set up a confidential room in the Third Factory, Gao Zhendong thought while riding his bike.

When I picked up the phone, it was a stranger: "Hello, Mr. Gao, I'm Tao Zhisheng from Jianning Electromagnetic Research Institute."

I don’t know him, but his unit is clear, not just because of his self-introduction, but also because the confidential office will naturally verify it.

For a moment, Gao Zhendong didn't remember any intersection between himself and the Institute of Electromagnetism. Even if it was about electronic countermeasures, he was talking to the Institute of Ships.

The person on the other end was very enthusiastic. After a few greetings, he started talking about the purpose of the call.

"Chief Engineer Gao, I'm calling you this time because I'm asking about a concept you proposed to your comrades in the artillery not long ago, which is about the artillery position detection radar."

Gao Zhendong finally understood and said with a smile: "It was just an idea of ​​mine. You are the experts in radar."

"Mr. Gao, you are too modest. Your suggestion does have a good theoretical basis, is very likely to be realized, and has great technical and tactical significance. Right after that meeting, the leader of the artillery contacted us immediately and asked us to carry out some preliminary research work. He also specifically said that if we have any questions, we can talk to you." The comrade from the Institute of Electromagnetism is very modest.

Gao Zhendong, however, understood his own business. He didn't know much about this thing. He knew the concept and was good at giving advice, but other people were much better than him in terms of technical details.

"Haha, potter, let me be clear first. I just think this thing is feasible in principle. Please give me some advice. As for the professional knowledge, I don't understand it, so I may not be able to explain it in detail."

First lower the other party's psychological expectations, which means using all marketing methods.

Potter smiled and said, "No matter what, as the initiator, Mr. Gao must have something worth learning from. He can think of things that we cannot think of for the time being."

He also felt that Gao Zhendong could not offer any professional opinions in this regard, but perhaps he had some sudden ideas that he had not yet fully expressed.

"Regarding the selection of wavebands, we have no problem. We just need to keep the wavelength small. The shells are small, and only with a small wavelength can we effectively detect and accurately locate. But we have done some preliminary mathematical simulation calculations and found that the error is a bit large. I wonder if Mr. Gao has any advice on this." Anyway, it's always a good idea to ask more questions.

Mr. Tao was still grateful in his heart for the popularity of the DJS series of transistor computers. It was very difficult for them to apply for the right to use computers in the past. At that time, this kind of simulation analysis alone could not be completed within a few days, and it was very time-consuming.

Now that they have their own computers, the entire process of preliminary research, simulation, verification and calculation has been greatly compressed, greatly improving research efficiency.

This simulation is terrible. The error is quite large. Even the simulation error of the ideal state is so large. Then the error will be even greater in actual use. It is simply unusable.

After hearing his words, Gao Zhendong felt relieved. Hey, you should have told me earlier. I don’t know anything about radar, but I know a little bit about math.

Since this is a simulation, the performance issue of the radar can basically be put aside for now, and it is estimated that a certain fixed error can be directly substituted into the calculation.

If there were no radar problem, Gao Zhendong would not be troubled. In his past and present lives, he had the experience of studying and compiling "Principles of Automatic Control". In terms of algorithms, he thought that he was still a little better than Tao Gong and the others in some aspects.

“I see, Potter, can you tell me about your simulation process?”

Mr. Tao did not hesitate at all. The original words that the artillery leader said to him were, "Don't worry about confidentiality. Ask whatever you want to ask. I will provide whatever General Gao wants to know."

"Our comrades in the artillery first found an actual trajectory and weather data with relatively ideal conditions, and then substituted the ideal performance and typical errors of the radar to simulate the error data returned when the radar intercepted the position of the projectile in the trajectory. Using this data, starting from 2 points and going all the way to multiple points, we used the algorithm to perform inversion and compared the error with the actual trajectory."

The idea is very clear, but the amount of calculation is relatively large, fortunately we have a computer.

“What algorithms did you use for the simulation?”

After hearing what Gao Zhendong said, Tao Gong complained in his heart, fortunately I didn't believe your nonsense. Why did you say you didn't understand? The fact that he asked this question at least showed that he was an expert in algorithms and simulations: "We have used parabolic approximation, least squares fitting, and Kalman filtering."

Gao Zhendong said, "Oh, you have tried the fast prediction algorithm and nonlinear filtering."

(End of this chapter)