I Have a Little Black Hole

Because the orbit above the earth can be used in many places, but this amount is relative. If you launch some separate satellites into orbit, of course, it is not a big problem, but if you launch a 'satellite' like SpaceX Chain plan' such a high-density networking satellite would be troublesome.

This kind of networking satellite has certain requirements for the distance between satellites and the division of the area that the satellite passes through. It is an important resource.

Then the problem arises. For networked satellite launch plans such as SpaceX's 'Starlink Project', they have so many satellites to be launched. This time must be very long. Thousands of satellites have been launched in a short period of time.

And if their company occupied these orbits in advance, obviously this is the most desperate thing. Without these orbits, their subsequent launch plans will be greatly adjusted or even suspended. This kind of The loss is indeed more than the tens of billions of dollars in space junk disposal business lost by their company!

You must know that in addition to the well-known communication network construction plan like SpaceX's 'Starlink Project', there are several similar communication network satellite launch plans in Europe and the United States and other countries. The amount of funds involved in each of these plans is Started with billions of dollars.

If these related plans are interrupted by the interference of the Infinite Gravity Group, then the loss is not just a matter of money!

Boss, your idea is really possible! And we can do better here in our laboratory. With our current level of communication satellite technology, it is obvious that we do not need to be the same as the 'Starlink Project' of SpaceX. To launch so many communication satellites to form a global high-speed communication network.

I made a simple calculation. Even if we only launch 10,000 of our communication satellites, the high-speed communication network formed by our company is much better than theirs, whether it is signal strength, data transmission speed or other indicators. A lot of.

Anyway, according to your idea, boss, it seems that we don't need to launch so many tens of thousands of satellites, as long as our satellite orbits are just in the center of the orbital nodes they need, so that they can only make large-scale networking if they want to network. adjusted.

Because our company's communication satellites occupy not only one key node, but tens of thousands of such nodes, no matter what they do, they can't avoid our interference.

If the boss wants a better strike effect, we can even add some interference frequency bands in the design of our communication satellites. This kind of thing is still very simple for us.

So even if they want to deploy satellites near our satellite orbits,

Because our satellite signal will seriously interfere with their satellite communication signal.

Anyway, when it's a big deal, we'll say that our company's design has omissions, but at that time, our tens of thousands of satellites are floating in the sky, who can force us to scrap all these satellites! Chen Shuming patted on his boss's flattery and then began to put forward his own optimization suggestions.

He said this, of course, from his confidence in the laboratory technology he managed, and his accurate judgment of the situation.

Don't look at the fact that there are less than 10,000 satellites in working condition in the entire earth's orbit. It seems to be very few for such a vast space of the earth, but the orbital resources that can be used are really very limited. This question will explain how the satellite orbits are distributed.

Because of the existence of Van Allen radiation belts, the distribution of satellite orbits can only be divided according to the distribution areas of these radiation belts.

The so-called Van Allen radiation belts refer to the trapped radiation area around the earth, which is composed of high-energy electrons and protons in the solar wind captured by the earth's magnetic field. There is a vacuum in between.

The first layer has a range of 1,500 to 8,000 kilometers, the second layer has a range of 15,000 to 25,000 kilometers, and the third layer is still under study.

These radiation areas will cause greater damage to the satellite's electronic equipment and are more difficult to protect, so satellites need to avoid these radiation belts.

Satellite orbits are divided into low orbit, medium orbit and high orbit satellites according to the first and second radiation belts. Of course, there is also a long elliptical orbit (special orbit): mainly used to cover the north and south poles, the orbit is about 500 kilometers high at perigee and about 40,000 kilometers high at apogee.

The total number of satellite orbital resources is limited due to the existence of Van Allen radiation belts, orbital height and the need to reserve a certain distance to prevent frequency interference.

And frequency interference is also a problem that must be paid attention to. Taking the geostationary orbit as an example, the entire earth has only one orbit, and everyone wants it.

In general, the longitude between 2 medium-capacity satellites is not less than 2 degrees. If you put one satellite at 2 degrees, you can only put up to 180 satellites in a circle of 360 degrees, and the resources are quite limited.

Of course, this orbit is now far more than 180, and the Infinite Gravity Group is planning to build two large spaceports here in the future. Just think about how crowded it is!

Therefore, in order to solve this problem, it is necessary to adopt certain technical means, and now there are mainly two technical means used.

One is the orbit co-location technology, that is, two or even more than three satellites are placed in the same orbit position, but this technology needs to realize the precise control of the orbit by the ground measurement and control, and break through the orbit position optimization, position guarantee strategy optimization and precise measurement. A series of key technologies, such as rail, are currently only mastered by a few countries in the world, such as Laomei, Huaxia, and Baga.

The other is to let two closely spaced satellites use communication frequencies of different frequency bands, thereby improving the utilization rate of orbits. This is what the ITU's Radio Regulations need to do. It is its responsibility to coordinate frequencies that do not interfere with each other. The meaning of existence, the frequency is not just how you want to use it.

And here is where Chen Shuming wants to do something, not to mention in the geostationary orbit, of course, the satellites in the non-geostationary orbit should also pay attention to avoid the frequency interference between the two satellites.

If they really follow Chen Shuming's suggestion, the satellites they launch will not only be able to occupy key orbital nodes, but at the same time, the signal interference frequency on the satellites can also prevent those satellites that want to approach this orbital position from approaching. What Tian Tang thought was going to be the end!

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