ps: Thank you Supreme Long Tian for your support and thank you for your evaluation votes in 1989.

It is based on the Canglan civilization where Sima Mulong lived in his previous life and his in-depth understanding of the ability limits of ordinary interstellar civilizations that the planetary defense system designed by Sima Mulong is relatively designed to be extremely lethal to the combat capabilities of those interstellar warships that are potentially hostile to interstellar civilizations.

This kind of targeted design, theoretically speaking, is undoubtedly extremely lethal for those alien visitors who may come to invade, and to a certain extent, it can effectively meet the security needs of all aspects of the earth's civilization, which is undoubtedly a great blessing for the earth's civilization, which can be protected from the impact and interference of foreign civilization forces in the climbing stage of the earth's civilization.

However, this also leads to the fact that if there are really foreign enemies at the level of ordinary interstellar civilizations, it will also doom them to a tragic end.

The planetary defense system of the earth civilization not only avoids the real and attacks the virtual with its own design concept, but also makes the greatest use of the local advantages of the earth civilization itself, and also aims at the essential defects of foreign civilizations to the greatest extent, and more seriously, the starry sky observation system that exists as the core of the defense system also has a huge black technology component, which is much more advanced than the observation technology of outer space from a certain point of view.

In addition, the space of the outer space environment of the earth is vast, and the anti-aircraft radar of the circumplanetary defense system can make use of the advantages of space and local resources as much as possible, which leads to the size of these radar monomers, which is more than ten times larger than the size of the shipborne radar of the spacecraft. In this way, this has more of an observation advantage, and speaking of which, it is really a pit alien that is not negotiable.

If there is really an alien fleet that wants to come over and bully the indigenous civilization, I am sure that they will be beaten and bullied with tears, and regret why they came to this star field by memorization.

Unlike ordinary interstellar warships, which focus on stealth, observation, movement and other directions, it is for a circumplanetary defense system that flies at high speed in a high-altitude orbit. There are only three most important combat indicators, that is, to see far, to fight far, and to fight accurately!

As for stealth capabilities, there are no special requirements for the planetary defense system, because under the premise of pursuing the strategic goal of seeing far and fighting far, the purpose of stealth is naturally achieved, and there is naturally no additional demand for stealth capabilities.

Frankly. If it is really reduced to relying on the stealth ability of the planetary defense system for passive defense, then this defense system is probably not far from being destroyed.

The goal pursued by the planetary defense system is to find the enemy at the distance possible, lock on the enemy, and then carry out targeted targeted elimination of the enemy, killing people hundreds of millions of kilometers away.

With such a combat objective, it is naturally not difficult to understand the requirements of its war function.

It can be said that in this case, the first thing to pursue is the ability to detect the enemy from a distance. Ask to see far.

And in terms of seeing far, it requires the observation ability of the planetary defense system. It is farther than the observation range of the interstellar warships of interstellar civilizations, the observation range is even broader, and the ability to identify, identify, and analyze is even stronger. Only in this way can operational needs be satisfied.

Moreover, it is not enough to see far, it is also necessary to have the corresponding long-range strike capability, and at the same time have the ability to observe ultra-long-range. With ultra-long-range strike capability, the firepower projection capability of the planetary defense system must be very strong, which not only requires that it can be able to carry out targeted fixed-point strikes against the enemy at ultra-long-range gathering, but also requires that the strike intensity must be super strong, only in this way can it effectively destroy local interstellar warships.

However, ultra-long-range firepower strikes, like the needs of warfare within modern planets, are generally not a problem with power, but usually a problem with strike accuracy.

Although most of the cosmic environment is a vacuum environment, and the density of space matter is extremely sparse, even if it is a vacuum environment throughout the whole process, the distance of more than 100 million kilometers will have an incomparably huge impact on the accuracy of firepower delivery.

And the worse fact is that in the cosmic environment, there is not only a vacuum, even if it is only within the range of the solar galaxy, there are a lot of heavyweight factors that can affect the accuracy of firepower delivery, what planetary gravity factors, planetary orbit change factors, interstellar dust, cosmic rays, meteorites, comets, etc., any one that is not taken into account, will cause the deviation or even failure of the firepower projection.

If we want to avoid this unfavorable situation, or even turn the unfavorable elements into favorable elements, confirm all the unfavorable variables in the process of fire projection one by one, model, and carry out huge data analysis, so as to finally form a solution, transform the unfavorable variables into beneficial variables, greatly accelerate the speed of fire projection, and interfere with the enemy's fire reconnaissance, this undoubtedly requires the existence of a huge and incomparable data analysis system, correspondingly, a giant data analysis center built on the ground is also indispensable, and an important link in the planetary defense system。

In this way, after concentrating these several combat elements, a comprehensive combat advantage over interstellar warships and a planetary defense system around the earth can truly achieve the intended goal and defend against strong enemies outside the country.

However, such operational requirements are of course not low in terms of technical requirements, but fortunately, the earth civilization has overcome countless difficulties and finally built various subsystems one by one, and has initially formed a combat force with a certain actual combat capability.

The rest of the project, more is to replenish more combat forces, transport more long-range fire delivery strike weapons into predetermined orbital sites, and build more and larger space factories in the space environment. Stationing more space workers, although these things consume a lot, but it is not difficult for the earth civilization, the test is more about the investment of resources, and the more resources are invested in a short period of time. The more naturally formed combat capability will be, until the established planning requirements are met.

After all the projects of the Earth's circumplanetary defense system have reached the standard, the security boundary of the Earth's civilization can be regarded as a sufficient guarantee, even if it is a high-end, interstellar civilization combat fleet with the ability to independently produce interstellar warships, if it wants to fight the Earth's civilization within the range of the Earth's firepower, there is no chance of victory.

Just like the radar part of the Earth's circumplanetary defense system, the advantages of the alien warship radar system are the same as the independent functional systems of the circumplanetary defense system that exist based on the home star production system. Their advantage lies in the fact that each independent system component is an independent composition, and its key indicators such as volume and size are only subject to the production and processing of the parent star, as well as the ability to deliver space, and will not be restricted by the size of the spacecraft.

It can be said that in space orbit, as long as you have the ability, you can do it. Even if you want to forge a giant caliber space cannon with a length of kilometers, you can do it casually. And such a giant artillery, even if it is a little backward in technology, the combat capability that can be formed cannot be underestimated, compared with the limited size of the starship, the advantage is not as simple as a little bit.

The advantages of each item add up to the final formation. It is a crushing, overwhelming combat power advantage, which can eat the interstellar battleships of ordinary interstellar civilizations to death.

But then again, if there was no such combat advantage, how would Sima Mulong dare to invest such a huge amount of blood in space orbit. It is simply the construction of various space factories that spare no effort to produce scarce products that are difficult to cast in various terrestrial factories, or extremely expensive to cast.

Although once these space factories are put into operation, they can effectively improve the many shortcomings of the earth's civilization in the production process, and form an upgrade in many fields in all aspects, which can greatly contribute to the growth of the production system of the earth's civilization, and is also conducive to the construction of the planet's defense system.

However, there is one thing to know, that is, the cost of production of these space factories is extremely high, in space, even if you send a gram of garbage, at least it will cost a hundred yuan to launch, plus the strength requirements, protective requirements, quality requirements, sealing performance requirements, and many core equipment requirements inside the space factory, in general, the production cost of each factory here is much more expensive than the same weight of gold...... Some space equipment is made of gold, or even more expensive than gold.

The problem is that there are hundreds of these factories so far, and in the foreseeable future, many more advanced space factories of the same type will be launched one by one and appear in the high-altitude orbit around the earth.

Such a huge investment in many space projects not only means that they will continue to produce all kinds of rare resources, but also means that they themselves are a huge burden, a huge security burden.

In the space age, such a space factory, even though it is not the most important and core national strategic asset, is definitely an important part of the national asset and has extremely great strategic significance and value.

However, these factories are far away from the planetary continent, unsheltered existence on the planetary orbit, this existence itself can be said to be a huge strategic risk, their significance in the interstellar era, just like the developed technological industrial zone on the southeast coast of Dahan in the planetary era, contains a civilization, some of the most valuable strategic asset components, but their location, and let them always be exposed to the risk, it can be said that once an interstellar war breaks out, this strategic asset is simply the core strategic assets that are destroyed one by one by a time, once they are destroyed, even if they cannot completely cut off the industrial production capacity of a civilization, which will also paralyze a significant part.

To be honest, if the Earthlings Organization did not have the backing of the planetary defense system under construction, it would be able to snipe a considerable part of the alien threat, otherwise, it would not have the courage to invest so heavily in space and invest its blood.

Because such a huge national power is invested in this field, once it is destroyed, even if it is organized by the earthlings, it will spit out a mouthful of blood, resulting in a great loss of vitality, and if it is not done well, there will be some chaos inside.

However, Sima Mulong knew that if he wanted to develop an interstellar civilization, this was the only way to go, and any civilization, at the initial stage of stepping into the sea of stars, was extremely fragile, even more dangerous than shrinking into the planet at the beginning, when an indigenous planetary civilization came.

The tentacles of civilization stretching out of the planet are not only expensive, but also extremely fragile, and one will suffer heavy losses if you are not careful.

It is precisely for this reason that Sima Mulong decided to build a huge amount of work and invest in a huge planetary defense system, the existence of this planetary combat system can not only allow the earth civilization to resist the invasion of alien interstellar civilizations, but also protect the civilization assets of the earth civilization in high-altitude orbits beyond the atmosphere.

Even if there is another meteorite disaster that destroys the dinosaurs, with the existence of this combat system, the disaster can be eliminated far away.

However, if the earth's civilization wants to advance by leaps and bounds at the level of civilization and step by step to a new level, it is obviously not enough to just count on such a planetary defense system.

The earth civilization must come out of the moon and Mars, open up the moon base and Mars base, and constantly polish the bones of the earth civilization in the extremely harsh and harsh environment of outer space, so that the earth civilization can completely adapt to the threat of the cosmic environment, and even find more and more planets that can survive in the starry sky of the universe.

At this point, Sima Mulong now also has some eyebrows, the starry sky observation system of the planetary defense system, its observation range is extremely vast, for thousands of light years away planets, can obtain some brief information, some of the closest planets to the solar system, but also can not escape the observation of the observation system, and even earth scientists, now have discovered the existence of several alien civilizations, such a discovery, undoubtedly has laid an incomparably solid foundation for the development and expansion of the earth civilization, but also illuminates the direction of progress。 (To be continued.) )