Chapter 543

These are quite professional knowledge. The specific things are too complex. In short, analog-to-digital conversion is mainly used for digital radar sampling.

For example, the an / awg-9 radar used on the male cat fighter aircraft of the eagle United States was developed too early, with low analog-to-digital conversion capability and low sampling rate, so there were only low repetition frequency and medium repetition frequency. In the early 1980s, high-speed and high-frequency analog-to-digital conversion chips appeared. This is pure nonsense. In the research and development of military aircraft, the chips have always been based on their own production, It is absolutely impossible to import from abroad. What else is there? Because the eagle country refused to export and imposed an arms embargo on the Han country, it obtained it secretly from a third country.

Isn't it nonsense to base the country's military industry on foreign countries? If we only talk about military aircraft, the scale of hundreds of aircraft is not large, but this thing is not only used on military aircraft, but also used as long as it is radar. Like later air defense ships, that phased array radar is hundreds of land chips, and it can also be imported from warehouses in third countries?

The chips of military aircraft have always been independent, but it is just a problem of performance. If such things need to be imported from abroad, they will get stuck at any time, and it will be even more terrible if the chip has a back door or something.

Han's civilian chips may be weak, but in military aircraft chips, they have always been made by themselves. How can they be reliable by relying on foreign countries?

The main developer of military aircraft chips is the 114 Institute in front of us. When we disassembled the advanced radar and used discrete components first, we found that this could not be done. Therefore, we were forced to start working on the chip and produce all kinds of chips.

Now, they are walking hard on this road. Fortunately, now they have Qin Guan.

"In other words, what we lack most now is the chip." Qin Guan said: "if the chip breaks through, there is hope that our pulse Doppler radar will be developed?"

In this era, Han couldn't even get a card reversing radar, but now, what a great progress it will be to cross over to pulse Doppler radar in one step!

Qin Guan was already stimulated when he was in the holy country. Therefore, whether he could get it from abroad or not, in short, his own side should get it out first!

Looking at the history of later generations, electronic systems are better than engines. Later Han countries have overcome the difficulties of active phased array radar, but the engine is still a huge short board.

Now, his side is bad for the chip, so just get the chip out. Now Qin Guan has enough confidence.

The two models exchanged are prototypes, using the technology of the early 1990s. In the early 1990s, the Han country used only 1 micron technology, and its existing production line can be fully satisfied.

Or that, military technology does not require advanced technology, it is necessary to have a variety of anti electromagnetic pulse and other indicators.

As long as you say you lack any chips and name them, you can go to the weapon data cemetery to turn over the model data, and then hand it over to 1109 factory for production. It's that simple.

The hook of this super weapon exchange system is too large.

The current imitation object belongs to the early batch of 11473. Historically, it was developed in the late 1980s. The components used are relatively old and the performance is relatively backward. At that time, the radar was only equivalent to the level of Eagle country in the early 1980s.

In other words, if our own side comes to do it now, it will be at the same starting line as the level of Eagle country in the early 1980s.

Don't exceed too much. It's good to stand on the same starting line now.

Suddenly, Qin Guan remembered something again. No, in addition to these circuits, the development of radar antenna seems to be a difficulty!

Xiong Guo has worked hard for many years, but he can't get this kind of radar. One of the key reasons is that the processing technology required for the flat slot radar antenna is too high, so they can't reach it at all. Therefore, they can't get it for a long time, so they go around and build phased array radar.

Now, if we only make a breakthrough in the circuit, we can't get the radar and radar antenna. It's also a huge difficulty.

"How are you going to solve the problem of radar antenna?" Qin Guan asked.

The question put forward by Qin Guan finally convinced the people present. Qin Guan is definitely an expert. Only an expert can see blood at a glance and put forward the most critical problem at once. Yes, in addition to the circuit, this radar antenna is also a huge difficulty.

How can we solve this difficulty?

"Zhang Gong is responsible for the radar antenna," said Wei Zong, chief designer of fire control radar "She is not in the research institute now. If she wants to process this radar antenna, she must use NC machining and chemical milling to remove cutting burrs. Therefore, she searched all over the country and found that the highest NC machining is the North heavy truck factory, so she went to the North heavy truck factory on business and wanted to go there to ask for assistance in processing."