Chapter 148, Clairing Global Positioning and Navigation System

Here at the Fuyun Group Space Center in Longling Town, Li Fu, who was dressed in a white coat, was leading people to discuss the company's future space development plan at this time.

"Now that we have our own aerospace aircraft, there will be no problem in going back and forth to space in the future, but we are now restricted in many aspects, and the navigation and positioning system used is the Beidou on the national side, and if you want to stay in space, you can only choose to park at the Tiangong space station."

"So I think the next step, the core of our work should be to build our own navigation and positioning system, build our own space station, so that in the future, we will have our own foothold in space, and the further plan is to build our own space station and permanent moon base on the moon, mining resources, and so on."

Li Fu sent the next plan to everyone present through his own virtual machine, and the more the company developed, the more Li Fu felt that he was tied down and difficult to carry out.

Not to mention anything else, just every time an aerospace plane travels to and from space, it must be applied for in advance, maybe now because the policy allows, so the application is easy to pass, if the policy changes in the future, it will be difficult for Fuyun Group to maintain at that time.

In the future, if the company further develops and grows, the scientific experiments and other scientific experiments that need to be carried out will have a greater impact, and then it will be subject to more constraints, which makes Li Fu feel very helpless.

"Maybe I should learn from His Majesty, the Founding Emperor of the Han Science and Technology Empire."

In his mind, such a thought flashed, but soon Li Fu didn't think much about it, and continued to discuss the future space development plan with his subordinates.

"Brother Fu, we should also build space factories, space energy bases, and develop space agriculture between spaces."

Yu Liang also seemed very excited at this time, and he opened his mouth wide.

"Don't think too much about it first, our next step is to get our own GPS system first, and then build a space station for ourselves first."

"The global positioning satellite system is not difficult, we only need to make the satellite, and we can launch it all into space at one time with an aerospace aircraft, and it is not difficult to have a space station technology, but I don't know if the country will allow our private enterprises to have their own space stations."

"In space, you shouldn't have to worry about that, right?"

"Having said that, it's better to apply with the state."

The core of this is also around many things in space if you don't apply to the country, after all, according to the consistent principle, this space belongs to all mankind and does not belong to any country, but everyone is Chinese, and it seems unreasonable not to apply to the above.

……

In the Longling Town Space Center, the huge aerospace plane "Hercules 1" rushed into the sky in an instant with a roar, like an arrow from the string, and came to space a few minutes later.

Its huge belly contains 36 satellites manufactured by the Fuyun Group, and these 36 satellites are used by Li Fu to establish his own global positioning and navigation system.

Generally speaking, to accurately locate the ground through satellites in space, at least 3 satellites are generally required. However, when carrying out pseudorange single-point positioning (absolute positioning), because the pseudorange measurement observation value of each satellite contains the error of receiver clock error, the distance measurement observation value is very inaccurate, and the receiver clock error needs to be added to the calculation of pseudorange single-point positioning as an unknown number plus three unknowns of coordinates, so at least 4 pseudorange observations are required, that is, at least 4 positioning satellites need to be observed at the same time to achieve accurate and real-time positioning.

In order to cover the whole world, the number of satellites required is at least 24, which can ensure that at least 4 satellites can be seen at any time in every part of the world, and the four variables of space three-dimensional coordinates and time can be solved through 4 equations. These 24 satellites are distributed in 6 orbital planes, each orbital plane has 4 satellites, and the receivers of the positioning system are all passive positioning methods (that is, the receivers do not need to send signals).

For example, Uncle Sam's Global Positioning System (GPS) and Polar Bear's GLONASS system both use 24 satellites for global positioning, but Huaxia's Beidou navigation system has 35 satellites, and the difference is caused by the different altitudes of their respective satellites in space.

Uncle Sam and the polar bear developed early, so the good positions were occupied by them, only 24 satellites can be used to achieve global positioning and navigation, and the development of China is even later, there is no good position, all need 35 satellites.

Now Fuyun Group wants to establish its own GPNAV system, and the position is even worse, so after careful research and planning, Fuyun Group Research Institute has built 36 satellites to build its own GPNAV system.

The space plane soared into the sky, and just a few minutes later it was already in space, and began to orbit the earth, adjusting its altitude and orbit in preparation for the launch of the satellite.

The traditional method of launching satellites is to use launch vehicles, which put satellite launchers into predetermined orbits and then launch them, so that the launch of satellites is generally very limited.

On the one hand, the carrying capacity of the carrier rocket is limited, it is impossible to launch too large a spacecraft, and a Mars can often only launch one satellite, and there are many cases of multiple satellites with one arrow, but the mass of the satellites in these many satellites is very small, some are only a few thousand grams, and they do not have much effect in space at all.

On the other hand, because the fuel of the launch vehicle is limited, it is necessary to put the satellite into the predetermined orbit as soon as possible when launching the satellite, otherwise once there is a deviation, it will be difficult to adjust again, which means that the launch will fail.

Therefore, although the GPS system only needs 20-30 satellites to be realized, there are only Uncle Sam's GPS, the polar bear's GLONASS, China's Beidou navigation system, and Europe's Galileo navigation system.

One of the very important reasons is that because of the large quality of positioning and navigation satellites and the difficulty of sending them into orbit, ordinary countries simply do not have so much strength to complete them.

Huaxia is also because after the emergence of the aerospace aircraft, the Beidou navigation system was quickly established, because it can be very simple to use the aerospace aircraft to launch satellites.

The carrying capacity of the aerospace aircraft is very powerful, all of which are calculated in ampere, dozens of satellites can be easily transported to the sky together, and the most important thing is that the aerospace aircraft can also easily adjust their altitude and orbit, and send the satellites into the predetermined orbit one by one.

"Didi, with an orbital altitude of 23,000 kilometers, began to release the first satellite."

Luo Xiaoyao got the order and gently pressed a button.

Behind the belly of the huge aerospace plane, a huge satellite with a mass of more than 2,000 kilograms was slowly pushed out by the booster, and as soon as it entered space, the solar panels it carried on it soon slowly unfolded, like a pair of wings began to fly around the earth.

Ground Longling Town Space Center, Li Fu and the others looked a little nervous at this time, satellites are not too high-tech, Uncle Sam's high school students have even made satellites and launched them into space, so many scientists in Fuyun Group, it is naturally difficult to make satellites.

"Didi, the first satellite was successfully launched and entered the predetermined orbit, and it is expected that it will pass over our Huaxia sky in 2 minutes."

"Didi, the satellite signal was received, and the signal communication was normal."

Two minutes later, the satellite passed by Huaxia, and the space center successfully received the signal of the satellite, and the satellite could work normally and was successfully launched.

"Haha, although it is the first time to make satellites, we are not very technical enough, but we have aerospace aircraft, and it doesn't matter if we can make satellites bigger."

Li Fu laughed happily at this time, because it was the first time to make a satellite, he had no experience, so the satellite was very bulky, if it weren't for the aerospace plane, if it was launched by a carrier rocket, it would really be scolded to death by aerospace scientists.

Because the mass and volume of the satellite are larger, which means that the requirements for the launch vehicle are higher, the greater the cost of launch, and the higher the possibility of failure.

"Begin to adjust the orbit and altitude in preparation for the launch of the second satellite."

The aerospace aircraft in space constantly adjust to push and satellites, send satellites into the predetermined orbit and altitude, with more and more satellites in space, soon, the space center here began to be able to carry out accurate positioning.

"There are 4 satellites in space, and so far, the space center is located at 115°40'E and 26°20'N."

"Boss, the positioning accuracy of our own clairvoyant navigation system will not be worse than that of the Beidou navigation system."

Chen Bin looked at the data located by the navigation system, and said to Li Fu excitedly.

"Well, okay, how about looking at the high-definition camera on the satellite?"

Li Fu nodded with satisfaction, at this time, on the huge display in the center, a map of the earth was constantly improving, and this map was a map made by the information collected by his company's clairvoyant navigation system.

The clairvoyant navigation satellite is not only used for navigation, because it is large enough, so it also carries an ultra-high-definition camera.

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