Rebirth of the 80s New Farmer

Page 2703

Although Huaguang Communication is called Huaguang Communication in name, almost none of its products have entered the private market.

The personnel stationed here include scientific researchers from the Nanwan Group and the military. They are mainly engaged in the research and development and production of various radars. At the same time, the research and development and production of drones are also carried out here.

The current drones are still within the scope of reconnaissance, mainly individual reconnaissance drones and four-axis small unmanned vehicles.

After Gu Hongzhong left, Shan Renhui was the main person in charge of Huaguang Technology, and he cooperated quite tacitly with the military personnel here.

The security here is quite strict. Even when Wan Feng arrived, he and his entourage also went through half an hour of inspection.

In terms of radar, Wan Feng belongs to the level of seven orifices and six orifices, so it seems that it is useless to come up with any suggestions of his own.

In fact, he is also at the same level in terms of drones, but he has read a lot of news about this in his previous life, and he can't tell the specific reasons, but he can still give valuable suggestions in the general direction.

After seeing the appearance of these small drones, he expressed his suggestion to Shan Renhui and Miao Guoxing, the head of the military's Huaguang Communications.

These suggestions are to develop the research direction towards large-scale surveillance and strike integrated UAVs.

And he also drew some shapes of drones such as rainbow pterosaurs and dark arrows that he knew in the previous life.

Of course, they claim that they are cranky, and they can use it as a reference.

Huaguang Communications has researched a lot of messy radars. Apart from those radars purchased by the military, there are still many models that don't know what to do.

There are many small radar devices in these models, and using them on drones may make something sensational.

But this kind of large UAV relying on radio and inertial navigation is a bit ridiculous, which is related to satellite navigation.

Now the people in China still use GPS, and there is no Beidou. If you use it, you have to use GPS.

It's okay to use GPS for civilian use, but of course you can't use GPS for military drones.

After the GPS problem occurred in a certain strait in the southeast in [-], the Huaguo military took a negative attitude towards GPS and made up their minds to build their own satellite system.

And in [-], it invested [-] million euros to jointly develop Galileo with Europe, but two years later, Chinese people have not been exposed to any core technology.

Miao Guoxing also talked about this issue with Wan Feng.

It was only then that Wan Feng remembered the dog bites in the Galileo navigation system jointly developed by Huaguo and Europe.

"Comrade Miao, can you tell your superiors that we will not get any results in the joint research and development of Galileo with the Europeans, and the Europeans will not let us see the core technology. And the Europeans are procrastinating, It is hopeless to expect them to be successfully developed in [-]."

Europeans and Americans are of the same clan, so if there is any conflict between them, it is also an internal conflict. Asians and Africans are not the same people at all in their eyes. It is strange that they will let you get core technology for such a major matter related to national defense. .

I just want to fool you two money.

Miao Guoxing blinked his eyes for a long time: "Mr. Wan! If we still have some hope to study with them, we can get some technical materials, even if they are marginal. If we don't join forces, I'm afraid we won't get anything."

"You can't rely on others for this thing, you have to rely on yourself. We may not be able to research it ourselves. Didn't we launch a Beidou-[-] a few years ago?"

In [-], Huaguo launched the first satellite in geosynchronous orbit, the Beidou generation.

The first-generation satellite is different from GPS and belongs to active positioning.

The receiver comes with a transmitter to send the signal to the satellite, and the satellite then transfers the signal to the ground station to calculate the user's position and then returns the information to the satellite.

The satellite finally transmits the position to the user.

This positioning method only needs to calculate two unknowns of the plane coordinates, and the elevation is provided by the system database. Only two satellites are needed for positioning, which is simple and practical.

But the positioning accuracy is not high, about 100 meters.

However, active positioning also provides an additional function of the first-generation satellite, that is, the ability to send short messages, which is very useful for situations where general communication methods such as geological disasters and fishery rescue fail.

However, after all, the error of active positioning is too large to be used by the military. If you want to use it for the military, you must use passive positioning. This is the reason why Huaguo and Europe jointly developed the Galileo navigation system.

Chapter 2440 Start of Beidou

Miao Guoxing is a powerful scientist in the military, and his words are very important. If he can respond to the higher authorities, he will be valued by the higher authorities.

"Mr. Wan! You mean to use our Beidou-[-] as the basis to develop our own navigation system?"

Miao Guoxing knew about Wan Feng's relationship with the military, so he kept silent.

"That's what it means. The Europeans just want to cheat our money, and we can't make anything useful with them. Although we haven't obtained core technologies from cooperation with Europe in the past two years, we have also obtained some edge technologies. Combined with these few With our own technology, I believe we will be able to make our own navigation system."

"But it's useless to make it, we don't have our own frequency band."

The resources of frequency are non-renewable resources and are shared by human beings.

But not all frequencies can be used, and the frequency allocated by ITU to satellite navigation is limited.

The GPS system of the United States and the GLONASS satellite navigation system of Russia have already occupied 80% of the golden navigation frequency band.

Only 20.00% of the most peripheral bad frequency bands are left.

Although Huaguo applied for this frequency band [-] days earlier than Galileo in Europe, Europe launched satellites this year and navigation signals next year.

And Hua Guo still has nothing.

The international "Radio Regulations" stipulates the frequency and orbit of satellites as follows:

[-]. First come first served;

[-]. The applicant must use the frequency within seven years;

[-]. If the frequency hits, use it through negotiation.

That is to say, Huaguo applied for NO.17 in April 17. If NO.20.00 Huaguo had no satellites to use these frequency bands in April [-], Galileo applied for it in June [-]. These frequency bands were used before the [-]th, so the remaining [-]% of the frequency bands will not matter to the Chinese people.

And now Europe is already ahead of China, at least they have dedicated satellites to the sky.

If so, Huaguo can only stare with one eye and two eyes.

"Who said there is no frequency band, if we can launch a satellite in a year and a half and even carry out a practical application, the remaining frequency band will be our share."

It is now August 17, and until April [-], NO.[-], there are still... [-] months.

In [-] months, the system must be developed and the satellites will be put into the sky, and the navigation signal will be used once...

Miao Guoxing sighed deeply.

"Difficult!"

"It's hard to do. We can't get the core technology anywhere in Europe. It doesn't rule out that after Galileo's success, the Europeans will use some excuses to kick us out. Don't think that the Europeans can't do it. They are shameless." We have a deep understanding, we must fight hard. Miao Gong! You'd better respond as quickly as possible, we really don't have much time left, we must gather all the elites in this field and we must be in [-] Send the satellite up within a month and use the navigation signal."

"Mr. Wan! This involves various talents and funds..."

"Funding is not a problem. I will pay one billion first. In terms of electronic and computer systems, our Nanwan Group still has some people. We will fully support this project. It is also best to transfer Gu Hongzhong back. With his leadership, I think We can solve the system problem in half a year to a year. The rest is the hardware problem. The most important thing is to solve the problem of the electronic clock. If the military can solve the problem of the electronic clock, I can guarantee that the frequency band will definitely be There is a place for us."

The electronic clock is the core of the navigation system. If Wan Feng remembers correctly, Huaguo has already obtained the electronic clock technology. As for how to get it... Buddha said: It cannot be said.