Principal Zhou was very happy today because someone sent him a large number of experimental equipment, most of which were second-hand, and a small number were new, and even the factory packaging was not opened. These equipment were missing from Peking University, and it was a timely help. But what puzzled him was that these equipment was indicated to be used and managed by Li Siming.

However, he did not ask questions because the meaning behind the delivery person of these equipment was consciously no longer asking questions or intervening. As long as it was sent in, it was from Peking University. However, Li Siming had to make him pay more attention.

Li Siming was very happy today. Such a large number of equipment can meet his needs. Some equipment is a shortage even abroad. I really admire someone's supernatural powers. The equipment comes with the technical information full of safes and three experts.

These three experts, Lin Zhiwen, Jin Wei, and Xu Qishan, are all over fifty years old and are the first radar experts in New China. When they were notified to come to Peking University for research, they all thought that the other party was a highly respected old scientist. They were ignorant and thought that they were a young man who was still slandering. They felt that they had been deceived.

Li Siming had long thought of this situation: "Three teachers, there must be a lot of doubts now, but it doesn't matter. You came here to help me do research, so I put my mind aside for the time being. Work is our only purpose, except for work and work. I don't want some of you to withdraw easily because I am young. We are engaged in a great cause, providing ammunition to the army and providing food for national defense. This is the responsibility of our scientific and technological workers. So, about me, please evaluate me later."

Li Siming's words made the three feel a little ashamed. Yes, work is the top priority, and it is not certain that this young man is really "ambition is not at the age of age". In 1960, all Soviet experts retreated and stopped the aid contract, which brought great losses and difficulties to the imitation work. After hard work, only those Soviet products with information, prototypes or only prototypes were successfully imitated. From then on, China developed large-scale ultra-long-range tracking radar, large-scale phased array radar and ultra-visual test radar in the field of ballistic missile early warning systems. At the same time, a batch of radars supporting weapons were also designed and developed by themselves, including organic fire control radar, missile guidance radar, bombing aiming radar, Doppler navigation radar, range measurement radar, navigation radar, radio altimeter and bombing radar. Despite this, they felt that the level of Chinese radar was very different from that of developed countries.

Li Siming posted three copies of information. It is better to say that he copied it than his research. His previous life was good at radar, electronic communications, and fire control systems. He just copied some older models of equipment, but he was undoubtedly advanced in this era.

The first is an airborne synthetic aperture radar. This is usually installed on a mobile aerial or space platform. Using the relative motion between the radar and the target, the target echo signal received by the radar at each different position is coherently processed. This is equivalent to installing a "big" radar in the air. In this way, small-aperture antennas can obtain the detection effect of large-aperture antennas and can detect low-altitude aircraft, cruise missiles or vehicles traveling at high speed on the ground. At this time, there will be strong ground clutter entering the receiver from the antenna. Another layer of the airborne downward radar

The main purpose is terrain mapping. The principle is to use the high-speed motion of the radar carrier to produce different Doppler frequency changes on each point on the ground, so that the azimuth resolution is hundreds or even thousands of times higher than the resolution of the real azimuth beam of the antenna. In the original history, it was in 1979 that the airborne synthetic aperture side view radar principle prototype successfully tested the first test flight and won the first batch of high-resolution radar images in my country. Later, in 1980, the synthetic aperture side view radar (SAR) principle test prototype and ground optical imaging equipment won the second prize of the Chinese Academy of Sciences.

The second part is the artillery position reconnaissance and calibration radar. Ground artillery is used to reconnaise the position of enemy artillery firing positions and measure the coordinates of their own blasting points to correct artillery firing. This will play a great role in future border counterattack wars. This part provided by Li Siming is more advanced than existing equipment and can be produced using existing military equipment and materials.

The third part is the solid-state phased array radar system. During this period, there was already a three-coordinate radar with a phased array system in China, and it completed the observation task of outer space targets many times. According to the original history, in July 1979, the fall time and location of the US "Sky Laboratory" was successfully predicted, which was only 4 minutes away from the actual fall time. However, due to the limitations of technology, the solid-state miniaturization has not yet been achieved, and Li Siming did not expect this to appear in a short period of time. Even abroad, this is also a project under study.

The three experts quickly read these three materials and were immediately shocked. These are undoubtedly the things that are most needed in national defense construction at present. Although they are not the most advanced compared to foreign countries, they are definitely more advanced than what they know at present.

"Teacher Li, what do you think we can do, let's listen to you." The three of them said in unison. Although Li Siming is young, his knowledge has already convinced him. The ancients said: Those who are good at it are the first. For these three people who have been extremely enthusiastic about the national defense cause since their studies, it is undoubtedly the thing they most long for to get such opportunities to make achievements after *.

Looking at these three elders with white hair, Li Siming felt that he was really incomparable and that his contribution in his previous life was not bad, but compared with these three in front of him, he was still far behind. These talents can truly be called the backbone of the Republic.

Although there were technical data, it still needed experimental verification. The four of them immediately started to do research, and Li Siming became the general consultant. If the three had any problems, they always liked to ask Li Siming for advice. After a few days, they were all convinced. Teacher Li was not old, but he could be regarded as a major encyclopedia. Various technical problems that seemed difficult to him could be solved quickly in his hands. Now Li Siming became bitter and was chased to ask questions every day, and sometimes he didn't even care about food.

Several people are busy every day, and people on the same floor are wondering what they are studying. No one knows that they are doing military research in the experimental building of Peking University. Li Siming also doubts that Chief Yang is not worried about leaking the secret?

Director Chi seemed to know something, and came to see Principal Zhou every few days, which made Li Siming flattered. However, Li Siming heard their meaning, whether these devices could be borrowed by Peking University. Of course, Li Siming did not object to this. At that time, he was willing to sign an unequal treaty, and the treasures he received were to give Peking University a better research environment in electronics, including radio and microelectronics.

With Li Siming's "original" design, the research progressed very quickly. There was no need to start from a poor and introverted basis like before. With the completion of theoretical verification, the production of the first two radar prototypes began. The three assistants acted separately, went to various military factories, found materials, ran production, and assembled equipment. Li Siming did not participate in these things, but only when he encountered difficulties, he would intervene. He did everything himself, not Li Siming's way of working. He preferred to be the role of general consultant and led a team to solve problems.

Li Siming has been very busy recently, so he didn't have time to eat. When he was sleepy, he slept in the lounge in the laboratory. But what moved him was that Yang Yue came to deliver food every day.

"Eat quickly, why are you in a daze!" Li Siming was still thinking about the experiment just now, and Yang Yue had to remind him.

"Thank you!" Li Siming said to Yang Yue while eating delicious food.

"What are you grateful for? We are friends, are we?" Yang Yue smiled.

"It's just a friend?" Li Siming is brave enough now.

"Then what did you think it was?" Yang Yue was unwilling to lose the initiative.

"What's the relationship? You know, I know, heaven, earth, and know." Li Siming said with a smile.

"What are you studying? It's mysterious and mysterious every day, so I won't let me in. I see that after the end of my research, people will become divine!"

"The highest secret, nothing can be told!" Li Siming said with a smile.

"Hmph, do you think I don't know!" Yang Yue smiled, "You three assistants are all out and running away at the age of age. You are young, why are you embarrassed to be here alone?"

"This is a saying: It's better for those who are capable. Besides, they are more familiar with each other than me!"

"The genius believes in you!"

"Yes, the ghost girl believes in me!" Li Siming defended forcefully.

"I'll strangle you to death!" Yang Yue rushed over and wanted to pinch him, but his strength was too small and he didn't succeed.
Chapter completed!