Chapter 1465

Of course, this simplicity is only in the eyes of Europeans.

In fact, there have been several major discussions on the issue of navigation satellites in China, and even Zhuang Jianye personally promoted one of the major discussions, so as to finally form two paths of international cooperation and independence.

However, due to various reasons, international cooperation still prevails and therefore receives more financial support. On the one hand, many people in China have particularly beautiful illusions about Europe and feel that after the end of the cold war, with the deepening of European integration, especially the official issuance of the euro, Europe will inevitably become another pole to compete with the United States, the only superpower.

As a result, Europe, which has a unified market and a unified currency, is bound to usher in a wave of strong development with the accumulated information since the industrial revolution.

At this time, it is a good choice for China to catch a ride on the rapid development of Europe.

On the other hand, it is also the most important reason that China still needs to rely on imports from developed countries for key components of navigation satellites. For example, the most critical atomic clock, although China has relevant R & D capacity, there are obvious deficiencies.

Either the accuracy is guaranteed, but the overall quality is as high as more than 300 kg; Or a horse whose volume can be controlled below 40kg, but whose timing accuracy is pulling the crotch.

On the premise of ensuring the accuracy, Europe controls the quality of the atomic clock below 20kg, the power consumption is less than 30W, and the service life can reach at least 5 years.

This is simply not too friendly for satellite platforms with limited space and power consumption.

This is not the limit of the European Atomic Clock. The next generation cesium atomic clock being developed by the European precision instrument group in Switzerland can not only control the timing accuracy at 5 parts per billion of the frequency stability and the 24-hour drift rate less than 1 trillion, thus giving the "Galileo" navigation satellite 10 meters of navigation accuracy.

That's all. The key is that the cesium atomic clock developed in Europe has reached the chip level. The overall mass is only 2.2kg and the thickness is less than 25mm.

Thanks to the breakthrough of this cesium atomic clock, the future "Galileo" navigation satellite will completely eliminate the heavy hydrogen atomic clock like the GPS III to be launched by the United States, and instead use rubidium atomic clock and cesium atomic clock to back up each other, so as to achieve the navigation ability with the highest accuracy of less than one meter, so as to become the most advanced navigation system in the world.

Compared with the bright European Atomic Clock, the difference between grass chicken and Phoenix in China is not generally large.

Because of this, even the staunch independents do not oppose foreign cooperation. After all, learning foreign advanced technology is also a hidden attribute of foreign cooperation. Since China is not good enough in some aspects, it is necessary to study with an open mind. As for getting pregnant at a glance, or getting pregnant at a few glances, Or simply devote yourself to racing and pregnancy, it depends on your ability.

However, the idea of relying on external forces to achieve their own development is completely disillusioned, whether it is international cooperation or independence, because the head of the headquarters has made it clear that the cooperation plan with Europe exists in name only.

……

"I won't talk about the specific international politics and geo strategy. I will emphasize three points. First, the money we invested has been wasted; second, we haven't learned anything; third, the ruling of the International Telecommunication Union is very unfavorable to us, so I'm looking for you today to hear whether we can fully mature the navigation satellite by April 2007 Send the satellite to heaven and send out the navigation frequency approved by the International Telecommunication Union? "

The head of the headquarters was as neat as ever, but as soon as this came out, all the people present were surprised. Now it is December 2006, and it is still the 28th. Rounded down is 2007.

Where are the mature next-generation navigation satellites? People in the aerospace industry do not know. How can they complete this task in more than three months?

Even if we take ten thousand steps back, now we have mature navigation satellites in our hands, and space launch is not a children's play. We need to calculate the window period, orbit, fixed angle, and coordinate the measurement and control on the ground and at sea. They are piecemeal. No one or two months can't get down at all, so more than three months is not enough.

However, if the mature navigation satellite is not put into the designated orbit before April 2007 and the navigation signal is transmitted in accordance with the provisions of the International Telecommunication Union, the previously applied navigation frequency band will be completely scrapped. With the urine of Europeans, the difference between the two sides is only a few tenths of an error, and the demodulator can completely cover the domestic frequency, At that time, there will be no chance at home.

Of course, at this time, some people will ask why China has not launched experimental navigation satellites, and why it has not occupied its own frequency; European launched navigation experimental satellites on the line?

Just look at the composition of the presidency of the International Telecommunication Union. There is an American, two French, two British, a German, a Spanish and a black uncle from Gabon, Africa.

Such a combination, as long as you are not blind, you know it is an old double label.

In fact, it is true that four domestic navigation satellites have been launched, but the presidency of the International Telecommunication Union holds that the orbital height of the navigation satellite is not enough and adulterates other communication frequencies to label the domestic navigation satellite as an experimental product, and does not recognize that the applied frequency band has been occupied.

However, the European navigation satellite clearly reads "galileo-1 experimental star". Like the blind, the presidency of the International Telecommunication Union not only praised Europe's contribution to world aerospace, but also acknowledged that the navigation frequency band applied by Europe has officially become a part of Europe.

If this matter is known by the melon eaters, it will certainly cause an uproar, but the people sitting in this multi-functional conference room are not so boring.

I can't help it. All of you here have seen similar things for so many years. It's not a double standard. If you want to cure it, it's very simple to raise the standard so that these guys can't reach the position. At that time, it's not a double standard, but the contrast sprouts.

What's more, the International Telecommunication Union is just an international organization. If it's pleasant, it looks like that. How old is it?

The key now is that the Europeans have taken the lead. Can the domestic side catch up in a short time? As long as the navy can put the strength of dumplings on the navigation satellite and have a flying monkey in a short time, so as to form a navigation satellite network, covering the frequency band and locking it with technical means, this is the key to victory!

But everyone knows the method, but no one dares to speak easily. There is no way. The difficulty in this is already beyond imagination.

But at this time, the head of the headquarters added another sentence, which cooled the already calm hearts of the people present again: "You all know what they want to do when they launch an anti satellite missile with F-15 some time ago. You don't need me to explain more. Therefore, if we can launch a navigation satellite before next April, we'd better do an anti satellite test before that. It's not good to have a shield alone, and let others know that our spear is not bad!"