The rejuvenation of a great nation: from educated youth to national treasure scientist

Chapter 154 The World's Most Powerful Airborne Radar [Request for full order! ]

The leader stopped, glanced at Wang Haoran and said, "The most regrettable thing is that there are too few people like you!"

"I think the management model of your Pangu company is very good."

“My suggestion is to promote your good model to all enterprises across the country!”

"By that time, I'm afraid I'll still need your guidance."

Wang Haoran smiled and said, "That's no problem. I think the series of management systems and corporate culture we have developed can be shared with domestic brother companies."

The leader nodded with satisfaction and said, "Well! Ask someone to sort out your entire Pangu company model into a copy that can be promoted and implemented. When the transformation is completed, ask someone to assist and provide training or something!"

"Of course, don't do these chores yourself."

"Haoran! Your work intensity is really high!"

“We need to do both management and scientific research!”

"But I always believe that scientific research is the most important thing for you!"

Wang Haoran bowed and said, "Leader, I can say this, in terms of management, I basically won't interfere in every detail. It's generally easier to manage with a complete system."

"I probably only spend one or two hours a day on management now."

"The rest of the time, I am busy doing scientific research."

"Leader, you have heard about this new thing called computer network in Jusa, which is a series of computers connected to share content and collaborate. I think this is a very good situation."

"Once our computer office automation is fully promoted nationwide, I am thinking about connecting all computers with network cables to achieve networked office work, which will greatly improve work efficiency again."

"Do you think so?"

The leader's eyes lit up and he nodded and said, "I've heard of the Internet."

“It seems like this one just appeared not long ago.”

"Yes! It can be done! Then you can handle this matter."

Nowadays, of course, there is no such thing as the international Internet.

Even the Internet has only just appeared in Jusa.

What Wang Haoran is thinking about now is to be the first to build a large Internet network across the country and realize the first stage of the Internet information age in Longguo.

In this way, Longguo has seized the initiative in computer Internet.

The future development of the world's Internet will be led by the Dragon Country.

Of course, in order to achieve this goal, we must first develop a protocol for Internet information exchange, and it must also be built into the computer.

Before the mass production of Pangu computers, these Internet protocols had already been developed and embedded at the software and hardware levels.

For example, at the computer hardware level, Pangu Computer has added a network protocol processor, which can accelerate the processing and forwarding of network data at the hardware level, thereby improving network performance.

The network protocol processor communicates with the CPU through the PCI bus, receives and sends data packets, and handles related operations of the network protocol.

There is also a special part in the Pangu operating system that responds to the network protocol.

In fact, the current Internet in Jusa is only an internal network at the national defense level.

However, they have indeed developed a series of Internet protocols, and they are currently being used.

……

A few days after Wang Haoran talked with his superiors, Longguo Medical Equipment Corporation was established.

The main task of this company is to develop all-round domestic medical devices for Longguo.

The company's first general manager was Xie Yajun, the former president of Haidian Hospital.

This is considered a promotion for Xie Yajun.

The reason why Xie Yajun was chosen to be the general manager was mainly because he cooperated with Wang Haoran, which stimulated Wang Haoran's enthusiasm for research and invention, and directly led Wang Haoran to develop color ultrasound and ultrasonic lithotripsy.

After Xie Yajun took up his new position, he contacted Wang Haoran as soon as possible.

Because he was very confused and didn't have a clear work plan.

So, he wanted to meet Wang Haoran and ask for some guidance.

When Wang Haoran saw Xie Yijun, he smiled and said, "Congratulations! Dean Xie is now going to become General Manager Xie."

Xie Yijun waved his hand and said, "Hey! Don't mention it. I was just forced to do this."

“There is still a big difference between running a business and running a hospital!”

"I am a little panicked now, afraid that I will not do well and fail to live up to the country's expectations."

Wang Haoran smiled and said, "In fact, running a business is relatively simple. You just need to make a preparatory plan and take care of these aspects..."

Wang Haoran began to impart his experience to Xie Yajun.

His words were concise, but every word was meaningful.

After listening to this, Xie Yajun suddenly felt enlightened.

"Comrade Haoran, listening to your words is worth ten years of reading!"

"Now that you've explained it to me, I know what to do next."

Wang Haoran smiled faintly and said, "We have ready-made booklets on Pangu's rules and regulations. You can take a set back later. After you have thoroughly understood them, you can transform them into your own. That will be enough."

"What I need to remind Mr. Xie is that you must attach great importance to research work!"

"We need to set up a relatively large research institute to develop the equipment and instruments needed by the hospital one by one!"

"If you need my help, just tell me, and I will help you!"

When Xie Yajun heard this, he was immediately overjoyed, because he was actually waiting for Wang Haoran to say this!

"Thank you, Comrade Haoran. I'm afraid I'll have to trouble you in the future."

Xie Yijun left in a hurry.

There is still a lot he needs to do.

So, he couldn't stop for a moment.

He thought that if he wanted to achieve some results as soon as possible, in addition to setting up the company, he also had to build a factory and mass-produce color ultrasound machines and ultrasonic lithotripsy machines as soon as possible.

In this way, we can start supplying it in large quantities to hospitals across the country.

……

In the blink of an eye, the Spring Festival of 1980 was over.

Generally speaking, for the Dragon people, the Chinese New Year is over and the Lantern Festival is over.

But for Wang Haoran and others, the fifth day of the Lunar New Year basically marks the end of the Spring Festival holiday.

In fact, Xiao Renming started to return to work in the afternoon of the second day of the Chinese New Year.

He now had to hurry up and develop the Doppler pulse radar.

Xiao Renming is the kind of person who will give his all and work overtime to accomplish any task.

After talking with Wang Haoran, he suddenly realized a lot, so he thought that he must seize the time and strike while the iron is hot.

By the way, after Xiao Renming returned to the laboratory, he did not have an assistant at the moment.

The research assistants of professors and experts are generally their own students.

Some people also ask young teachers to help.

The students had all gone home for the New Year. The young teachers who helped Xiao Renming also had families to support, and it was not easy to celebrate the New Year, so how could they disturb them?

Xiao Renming could only go into the laboratory and work on his own.

At the beginning, he conducted research according to Wang Haoran's ideas, and everything went smoothly.

However, after a few days, he encountered a bottleneck.

When building the antenna, no matter how he tried, the results were not ideal.

Xiao Renming thought, let’s give Haoran a call.

After all, he is my son-in-law and will sincerely help me.

Xiao Renming called Wang Haoran’s office at Pangu Company.

After Wang Haoran received the call, he chatted with his father-in-law for a few words. He smiled and said, "Why not, I'll just go to your laboratory and help you."

The third generation of fighter jets is very important.

The new Doppler radar is also very important. If the radar does not meet the standards, the third-generation aircraft cannot be built well.

Therefore, Wang Haoran must seize the time and make efforts in this regard.

Xiao Renming felt a little embarrassed when he heard this: "Oh, Haoran, how can I feel comfortable with that?"

"You're pretty busy right now, right? Haha!"

Wang Haoran said: "I happen to have nothing to do right now."

"I'm going to help you get the radar fixed as soon as possible."

Wang Haoran went to Xiao Renming's laboratory to help. As we all know, the antenna of the radar is a very important component. If the antenna can't be fixed, the radar will definitely not work.

Antennas are responsible for transmitting and receiving electromagnetic waves.

In order for the radar to accurately detect targets, directional transmission and reception must be achieved.

When the radar is transmitting, it needs to concentrate the energy and radiate it in the direction where it needs to be illuminated.

When receiving, it is necessary to receive only the echo in the detection direction as much as possible, and at the same time distinguish the direction and elevation angle of the target.

Direction and elevation, the measurement of these two coordinates is directly related to the performance of the antenna...

Wang Haoran arrived at Xiao Renming's laboratory and learned about Xiao Renming's research progress.

Wang Haoran soon discovered the difficulties Xiao Renming was facing.

The main problem Xiao Renming is currently facing is the reflection and refraction of electromagnetic waves during the antenna design and testing.

The result is signal attenuation, phase change, and altered propagation path.

Solving this problem requires precise knowledge of the target material's properties and the use of appropriate signal processing techniques to compensate for these effects.

Wang Haoran discussed relevant issues with Xiao Renming, and he mainly used methods to stimulate the other party's thinking.

This made Xiao Renming quickly realize the problem.

Wang Haoran and Xiao Renming started to get busy together.

The development of Doppler pulse radar requires a large amount of supporting materials.

Although Xiao Renming is now a member of the academician and a great scientist, he is still no match for Wang Haoran in mobilizing resources.

With Wang Haoran around, he can quickly mobilize various resources and bring in some necessary people to help.

In addition, Wang Haoran had already thought about what kind of radar to design, so in just over two days, Wang Haoran and Xiao Renming developed the first Doppler pulse radar in China.

This Doppler pulse radar can emit single pulse or multiple pulses.

The designed detection distance can reach 150 kilometers.

After the radar is designed, it must of course be tested.

So, everyone worked together to lift the radar to the roof of the experimental building.

Wang Haoran specifically aimed the radar detection direction towards the Beijing International Airport.

There are large passenger planes taking off and landing there constantly, so it is the best location to test the radar.

The radar was connected to a temporary power source and turned on.

Xiao Renming was still a little nervous. He didn't know what this newly developed radar was like.

The domestically produced airborne radars currently in use are all mechanical radars, with seriously backward technology and a very short scanning distance.

If this Doppler radar can really be successful, it can be regarded as filling a major technological gap.

After all, mechanical radar is currently in a state of obsolescence in other powerful countries in the world.

"The Beijing International Airport is about 40 kilometers away from here."

"If we can detect the aircraft there, this radar will have achieved initial success," said Xiao Renming.

After all, the detection range of current domestically produced airborne radars is only a few kilometers at most.

Being able to detect 40 kilometers is definitely a great success.

Wang Haoran smiled and said, "Dad, 40 kilometers is a piece of cake."

As he was speaking, the radar display screen began to sound an alarm.

"Beep, beep, beep -"

Xiao Renming took a look and saw that several targets had been detected on the screen.

Moreover, each target is marked with a clear distance and coordinates (the distance and coordinates are constantly changing).

The nearest target is about 40 kilometers away.

The farthest target is more than 160 kilometers away!

Xiao Renming's heart immediately began to beat wildly.

It worked!
This Doppler pulse radar not only has a maximum detection distance of more than 160 kilometers, but can also lock onto multiple targets at the same time.

This is a groundbreaking achievement for domestic radar!
As long as this radar works stably, it can enable fighter jets to detect the enemy first, attack the enemy first, and ultimately win the battle.

The so-called third-generation aircraft, in addition to significant improvements in maneuverability and other aspects, is actually a major upgrade of the radar and avionics systems.

One of the biggest features of the third-generation aircraft is actually beyond-visual-range combat.

That is to detect, lock on and attack the enemy from tens or even hundreds of kilometers away.

The emergence of third-generation fighter jets has almost led to the disappearance of traditional fighter close-range dogfights in the air.

Because, before you even get close to the enemy, they will shoot you down. In this situation, no matter how brave you are, what else can you do but wait to be killed?
Therefore, when the second-generation aircraft face the third-generation fighters, they are almost lambs to be slaughtered.

Strictly speaking, as long as there are enough missiles on board, a third-generation aircraft can easily defeat even a second-generation aircraft.

This is the great role of Doppler pulse radar in third-generation fighter jets.

As long as there is a good airborne radar, it basically means that the third-generation fighter is about to come out.

This is also the main reason why Xiao Renming's eyes were filled with tears.

This Doppler airborne radar installed on the rooftop worked continuously and steadily, capturing all the planes taking off and landing at the Beijing International Airport one by one.

Of course, at the airport, Xiao Renming’s team also arranged people to keep in touch with the tower control.

This is also to verify whether the radar scans accurately enough.

Team members at the airport tower were also constantly providing feedback.

One thing is certain: every aircraft captured by the radar scan is accurate!
Even their coordinates and distances were calculated by this Doppler radar.

"Haoran, our Doppler pulse radar can be considered a great success!" Xiao Renming said, unable to hide his excitement.

Wang Haoran smiled and nodded, saying, "From the current test data, it's very good!"

"Dad, let's do some other tests."

The success of a radar depends not only on detection but also on anti-interference.

Radar anti-interference is also a big issue.

If you want the radar to have excellent anti-interference capabilities, it also requires sophisticated technical means to achieve it.

In order to make this Doppler radar resistant to interference, Wang Haoran adopted technologies such as collaborative detection of heterogeneous multi-sensors.

He also designed a new configuration of Yagi antenna and adopted advanced data transmission and processing technology.

The implementation of these technical measures can avoid electronic interference to the greatest extent.

The mechanical radar previously used by the Longguo Air Force would even interfere with each other to the point of collapse if several fighter jets using the radar turned on the radar at the same time.

Wang Haoran and Xiao Renming then conducted a variety of tests on the radar.

This radar has a very strong anti-interference capability. Even under strong magnetic interference, it can still work stably without being affected at all.

The test lasted two days in total.

After the test was completed and all the test parameters were recorded, Xiao Renming was extremely excited.

He immediately called Guo Weiyang, the head of the Fourth Ministry of Machine Building, and informed him of the good news.

Guo Weiyang was also very happy when he heard the good news.

The next morning, Guo Weiyang personally led radar experts from the Beijing area to Peking University to review the results of Xiao Renming and Wang Haoran.

The review was carried out extremely quickly.

Because the radar has already been made, it only needs to undergo various tests.

The test results were not generally excellent.

After testing, Longguo’s first Doppler pulse radar has a maximum detection distance of about 170 kilometers.

This is a very good detection range.

You should know that the airborne Doppler radar with the longest detection range in the world is the AN/APG-68. This radar was developed by Grumman and was once widely used on the F-16 series of fighter jets.

This radar was used for decades, and even after the new millennium, it was still the first choice of the Jusa Air Force fighter jets.

The detection range of this radar is actually only 150 kilometers.

In other words: the radar developed by Wang Haoran and Xiao Renming has a detection range that exceeds Jusa's most advanced airborne Doppler radar!

Other aspects of this radar are also quite excellent.

It can be said that it surpasses the AN/APG-68 in many aspects.

It is no exaggeration to say that it is the most advanced Doppler airborne pulse radar in the world!
After the review of the results was over, Guo Weiyang held Xiao Renming's hand tightly and said, "Teacher Xiao, you guys really helped the Air Force a lot this time!"

(End of this chapter)