Super Weapon Swap System

What should the Institute look like?

A large number of people stood in a large room, with a drawing board in front of them, drawing with a variety of drawing tools, stroke by stroke, which is a common appearance in the aircraft research institute.

Every part is drawn on the drawing board and sent to the factory for processing. In fact, this form has long lagged behind.

In the west, it has become popular to use computer-aided drawing. It is easy to modify, and simulation assembly can also be carried out in advance. More importantly, the drawn parts are produced directly by NC machine tools.

However, the level of the Han country is still far from reaching. Although the original development of Flying Leopard used computer graphics, it still had to convert the three-dimensional map into two-dimensional map and send it to the factory for production.

The electronic Institute is not like this. Now, when Qin Guan came to the electronic Institute, he first smelled a smell of rosin in the air.

Yes, it's rosin. This kind of thing is used to make flux. Electronic products need to be welded to the circuit board by soldering tin. When welding, there must be rosin, which is being welded in the first floor of the Electronics Institute and in the laboratories one by one.

To engage in electronic products, we must integrate theory with practice. Drawing on paper alone is not enough. We must reliably make circuits and then carry out functional testing.

"Where's director Ben?" major Yang obviously came here more than once. He walked in with Qin Guan and others and asked casually.

"In the east room on the second floor," said the man, "I'm with Mr. Wei."

Director Ben is the leader of institute 114. He is now an academician of the Chinese Academy of Sciences, while President Wei is the chief designer of the new generation of fire control radar. After sending two advanced radars here, they spent almost half a year here and abandoned their homes.

The party went to the second floor and saw a large room in the east of the second floor. At the door of the room, there was a new sign, 11471 radar research room.

When I walked in, there were some tables on which some books and some testing instruments were placed, and then there was a huge console on which various circuit components could be seen stacked.

At this time, on the huge console, a group of people were surrounding a newly welded circuit board, as if arguing about something.

"No, our data processing ability doesn't pass the test at all. We all use the current transistors. It's not only huge in volume and low in computing power, but also on the plane, the failure rate will be quite high under all kinds of vibration." the speaker is an old man, his hair has turned gray, wearing a thick glasses, who is the director of cardia.

Next to him, a slightly younger middle-aged man expressed different views: "however, the western world is closed to us. If we want to do it ourselves, we can only rely on ourselves. Without a suitable integrated circuit, we can only rely on transistors. Although our module is large, it can also be used."

"What's the use? How much space does this module have to occupy?" director Ben continued to express his opposition: "Lao Wei, I know your idea. We can't do it first, but we can't do it like this!"

"Then we can't give up!"

Qin Guan had heard the debate clearly. Now he walked up quickly and looked at the huge circuit boards on the console, each of which was one square meter in size. There were more than a dozen such circuit boards. Now, they are connected together.

Behind the circuit board, there is a minicomputer, which is outputting waveforms one by one. It seems that they have realized their function, but this volume can't be stuffed into the plane.

Most of the components are transistors, which shows how hard they need to pay to weld them.

"Why are you worried?" Qin Guan asked.

Qin Guan is only in his twenties. He is still a quite young man. When asked, director Ben turned around and looked at him: "who are you?"

"This is president Qin I told you about." at this time, major Yang in the back had already opened his mouth.

Major Yang knew them.

President Qin?

Hearing the name, the director of Ben immediately brightened his eyes. It is said that Qin Guan got the prototype. If Qin Guan could get the chip on it, his side would be much easier. If he had a chip, why would he be so troublesome!

After obtaining the prototype, Institute 114 mobilized the most elite radar team and began the difficult research work.

Director Ben led the team to prepare to break through PD key technologies one by one, starting from basic theory, basic algorithm, test conditions, key components and modules. Unfortunately, limited to the domestic electronic level, they use discrete components to achieve the same function, which is the result now.

"We have studied the two prototypes, all digital circuits, which are completely different from our previous ones. After hard research, we have basically understood the design principle and circuit function of radar, but our own can't do the same level." director Ben said: "Now, we are faced with two major problems, one is an efficient digital analog converter, and the other is a processing system. Now, our converter is such a big one."

Qin Guan was shocked. Originally, Qin Guan thought that so many circuit boards were data processing systems. Who would have thought that they were just a digital to analog converter. This data was processed by the back minicomputer. It was necessary to move these things to the plane. A ton was light.

To improve the performance, we need to use digital technology. However, when the radar wave is transmitted, it must be an analog signal. Therefore, we need to convert between analog and digital in the middle, and this conversion must have sufficient sampling rate and high enough speed.

At the same time, in the back, the radar signal processing is mainly carried out through Fourier transform, which must ensure the high-speed operation ability to allow the radar computer to repeatedly calculate the fast Fourier transform. Now, these principles are available. However, if you want to save the computer, you can't do anything without advanced chips.