Because other scientists are not reborn, they are groping their way across the river in terms of cruise missiles, and they all consciously or unconsciously like to use existing mature technology, which is a rigorous embodiment even if it is necessary for reality.

The missile navigation technology, which was born from the aircraft navigation system, has matured, and everyone has accumulated rich experience in the use of missiles, especially intercontinental ballistic missiles. Moreover, now the laser gyroscope has begun to be used in the navigation system, and its jingdegree has been improved by several grades compared with the previous inertial navigation system, coupled with television navigation technology, so that cruise missiles and other missiles have an unusually broad development prospect.

It is precisely the development of these technologies that makes it natural for scientists to rejects Guo Zhuocheng's proposal to use the global positioning system in missiles.

The reason why they are not interested in GPS is not because they reject new technologies and technologies, let alone because they are complacent, but after a lot of analysis and demonstration:

The first argument they object to is that GPS is too expensive. Surface GPS navigation only requires a signal receiving chip and related additional circuits installed in the cruise missile. Compared with expensive missiles, this cost is negligible, and it also has an incomparable cost advantage compared with inertial navigation systems and television navigation systems.

However, the signal received by the signal receiving chip is sent by the satellite in the sky, and in order to ensure accurate positioning and reliable operation, even if it is a positioning system in the region, it is necessary to ensure that there are three to four positioning satellite groups in the sky.

The cost of one satellite is hundreds of millions of dollars, and three to four satellites will cost between $10 and $2 billion. And after some time, new satellites will be issued to supplement those satellites whose life has expired.

If cruise missiles navigated by the Global Positioning System (GPS) are to be sold worldwide and used in hot spots around the world, it is necessary to establish a global positioning, which will certainly cost more money. In order to achieve seamless connectivity, 20 to 30 satellites in the sky will be needed to assemble at least $30 to $40 billion!

Even if 10,000 cruise missiles are successfully sold according to the production, the navigation cost of each cruise missile will be three or four million dollars! But the maximum price of cruise missiles will not exceed 600,000 US dollars, how much should this be lost? More than $3 million for every one sold!

Some people may say that China's cruise missiles do not need to be sold, and they are only used by the squadron to fight foreign wars. As long as China's victory in foreign wars can be ensured, tens of billions of dollars are nothing. However, China is not pursuing global interests like the United States and the Soviet Union, and will not wantonly wage war around the world, and if the purpose of launching a global positioning satellite is to wait for a war, it will be a huge waste at all, and the life of the satellite may not be able to wait for the outbreak of a war when it expires.

It's no wonder that scientists are so calculated, because of the limitations of the times, they think very narrowly about the field of use of GPS. They know that in addition to being used for missile navigation, GPS can also be used for power timing, satellite monitoring, global financial timing, seismic detection, etc., but they also know that these cannot generate huge profits and it is difficult to recover huge investments.

They did not consider the huge application of GPS in aircraft navigation, vehicle navigation, ship navigation, communication equipment timing, and so on. It's not that they're not smart, it's that they don't have a basis in reality, and even if they think about it, they ignore it.

Because China does not have a few large ships that need expensive positioning, and most of the ships shuttling in the ocean are foreign ships, it is difficult for people to buy China's navigation system at a high price; There are not many cars on the roads in China that need to be located, and they can't imagine that there will be more cars like locusts in the future, tens of millions, even if they break their heads; As for the planes in the sky, not to mention that most of them are foreign, even if they are made by China itself, they can completely use the habitual navigation system.

In the previous life, the timing system relied on xing's strong communication network, and now there is no need to use the timing function of the global positioning system, because even the program-controlled switch is not mature now.

The computer network is still only a product of the real room, and it is not necessary to get the time from the global positioning system, otherwise the network is likely to be paralyzed due to the difference in time around the world. In the previous life, there was no way to talk about the mobile communication network with strict time requirements, and now no one has even heard of mobile phones.

Without these applications in various fields to share the cost of satellites, it is obviously too expensive to share only by cruise missiles, which is more expensive than imagined.

Not to mention Chinese scientists, there are few people in the world who have a clear understanding of the importance of the GPS, including the Americans and the Soviets who are working on the system. To be able to know that this system is a huge gold pit, maybe only Guo Zhuocheng alone, this is a trillion-dollar market, and the incidental market cannot be counted, it is too big.

The second argument given by Chinese scientists against the use of GPS in cruise missiles is that China is temporarily unable to make an order of magnitude qualitative leap in rubidium atomic clock technology. Even in the United States, which is now the most advanced in the world, the timing system is not satisfactory. If the timing is not accurate, there will be a huge error in the coordinate information calculated by the computer in the cruise missile.

Everyone knows that electrical signals travel at the speed of light, 300,000 kilometers per second. The signal error is only one millisecond, and the computer calculates that the distance between the missile and the satellite is 300 kilometers away from the actual distance, and the coordinates of the cruise missile converted from this are hundreds of kilometers different from the actual position, which has no application significance at all; The signal error of one microsecond, which may be three hundred meters away from the actual position, is useless unless it is an atomic bomb; Only if the signal error control is within a few nanoseconds, and the difference from the actual position is only a few meters, this is an acceptable result for the missile.

In other words, the rubidium atomic clock must reach the nanosecond level for GPS navigation on cruise missiles to be of practical significance.

For these reasons, people are not so enthusiastic about using GPS to help cruise missile navigation. It's just that Qian Xuesen's personality charm and everyone admired his previous level of knowledge and did not openly oppose it.

However, they are very supportive of the construction of signal transmitters on high ground, and they also hope to use guò to verify or deny the feasibility of satellite navigation.

Qian Xuesen and his group, accompanied by Luo Xi, carefully inspected the scene, and then drove back to the guest house, waiting for news from agents or scouts in Vietnam whether the school was heavily guarded.

I have to say that whether it is in a previous life or in this life, the intelligence force of the squadron in Vietnam is still very good. No, not long after they returned to the guest house, news came: the school was heavily guarded! No one is allowed to approach.

In addition to the information that Guo Zhuocheng and they needed, what made Guo Zhuocheng and them happy was that the intelligence officers also asked people who had worked in the school through guò, and asked about it, and it was simply a three-story cement house built inside, which was requisitioned by the army some time ago. Intelligence officers also provided the relevant coordinates of the house.

The reason why the intelligence came so quickly and in detail was because of the intelligence work on the one hand, and on the other hand, because the task given to them by Guo Shucheng was simple, they did not need to sneak in to understand the specific situation, they only needed to observe from the periphery.

Thinking about the previous life, even the time for the Vietnamese army to launch an attack could be done, and this kind of simple intelligence is naturally not a problem.

With this information, the targets of the cruise missiles were finally determined, that is, the command post of the Vietnamese army stationed at the school, the ammunition depot at Ngoc Long Stream, a communication station, and an artillery position.

After discussions among experts and officers, the distribution of the sixteen cruise missiles was as follows: three at the command post of the Vietnamese army, three at the communications station, four at the ammunition depot at Ngoc Long Kim, and four at artillery positions. The remaining two will be maneuvered, and it will be decided according to the process of sending she. For example, when there is an obvious SHE deviation or a missile that has to self-destruct in the middle of the process, it is being replenished.

It is obviously a bit too much to allocate three cruise missiles to a Vietnamese army command post, after all, there is only one building there, but everyone thinks that it should be, because this goal is the most important, once the other party's senior officer command personnel are really defeated, it will have a great effect on the morale of the Vietnamese army, and can greatly weaken the combat effectiveness of the Vietnamese army.

When the information is received and the target of the attack is confirmed, someone will mention that they will send it immediately, so as not to have many dreams at night, and it would be a pity if the command post of the Vietnamese army was removed.

However, this was rejected by both Qian Xuesen and Guo Zhuocheng: Qian Lao refused because he believed that the night would affect the safety of the soldiers, and it would not be conducive to the observation of the missile's track when flying in China.

Guo Zhuocheng said that if the SHE had been fired at night, perhaps the Vietnamese army would not have been able to organize an effective interception from the time it was issued to the end of the explosion, and it would not have even been discovered at all, and it would not have been possible to detect how the Vietnamese army had blocked the cruise missile during its flight and landing. If no one stops you, it's not a real battle.

With the opinions of the two of them, there were no other objections, and they all agreed to set the time for the next day at half past ten in the morning.

The next morning, after breakfast among the experts and officers, the experts and officers rode to the Fa She's position in high spirits.

When they arrived, Luo Xi had already commanded his subordinates to complete the preparations, just waiting for the experts to come over and inject the parameters of the missile's cruise path.

The experts had already determined the relevant parameters according to the terrain, and with the order of the commander-in-chief Qian Xuesen, the relevant experts immediately rushed to their battle positions and began to input the relevant parameters.

At this time, the generator has already started, the power is transmitted to the equipment, and the lights of the colorful SE are flashing.

Next to each missile rack are two displays showing the correlation number and status. When the experts sat down in front of the screen, two technicians stood next to them to proofread the parameters to prevent input errors.