At one time, the GPS in the United States was dominant, almost stuck the neck of the whole world. However, with the rise of China's "Beidou" navigation, GPS has lost its advantage, so Lao Mei has to find another way.
Now they are working in the direction of "quantum navigation", and it is said that they have achieved certain results. Could it be that we will return to the situation in which "the old United States and the United States are blind, and the whole world is blind"? What is the mainland's way to deal with it?
GPS doesn't work?
Don't say I don't know, I was shocked, and before I knew it, the satellite navigation system had become so important, and I needed to open the navigation to go to an unfamiliar place, and even to buy a takeaway, I had to determine the delivery distance through navigation.
Even if the lives of ordinary people are inseparable, most of them will become empty shells without national defense projects.
For a long time, the GPS of the United States has been outstanding, and other countries have not thought about overtaking in corners, but Lin Lin has finally calculated that the funds spent on research and development and erection are simply a bottomless pit, and it is better to honestly pay for the use of the United States with that money.
Until the outbreak of the Gulf War in 1991, the United States turned off the GPS signal in the Middle East, and the most powerful air defense system in Iraq's hands was abolished at once.
Xu has tasted the sweetness of the Iraq war in 2003 and the Libyan war in 2011, and turning off GPS is the first step for the United States to start a war.
In 1993, the mainland container ship Yinhe departed from Tianjin Xingang and passed through Shanghai, Hong Kong and other places according to the original plan, heading for the ultimate target Kuwait.
However, the U.S. government claimed that the cargo ship would transport large quantities of important raw materials for the manufacture of chemical weapons to Iran, which was likely to have a negative impact on national security, and they demanded that China stop the ship immediately and be inspected.
In order to force the mainland to bow its head, the United States directly turned off the GPS signal in the area where the Galaxy is located, and under the vast ocean, it is almost impossible to move an inch without satellite navigation, and in order to survive, the mainland can only accept the unreasonable demands of the United States.
In 1996, the United States repeated its old trick and once again turned off the GPS system to the mainland without permission, this time their target was not the mainland freighter, but wanted to interfere with the mainland's missile test mission.
Such a provocation is simply a great shame. In order to get rid of the US GPS blackmail, the mainland united all the forces that could be united, made great efforts in the development of the Beidou satellite navigation system, and finally climbed over one high mountain after another, and completed the deployment project half a year ahead of the original plan.
During the outbreak of the Russian-Ukrainian war, in order to block Sino-Russian cooperation, the United States once again put the shutdown of the GPS system on the negotiating table, and this time the mainland no longer cares, because China already has Beidou in its hands.
A new breakthrough in quantum technology in the United States
After several decades of continuous use, satellite navigation technology has also developed from the United States to other new branches, China's "Beidou", Europe's "Galileo", Russia's "GLONASS" have all run out and the United States GPS to compete for the market.
And the most interesting thing is that with the gradual popularization of satellite navigation technology, its shortcomings have become more and more prominent.
Navigation satellites are generally located in orbits more than 20,000 kilometers above the ground, and because the signal transmission distance is too long, any bunker or building can cause immeasurable weakening of satellite signals, not to mention those high-power electronic warfare equipment.
A random signal jammer, or a concrete house with thick walls, may make the satellite guidance system blind, if it is only supplied to commercial facilities, it is okay, military guidance facilities need a more independent, more anti-jamming navigation system.
As a result, the U.S. Naval Research Laboratory began to turn back, wanting to make up for the shortcomings of satellite navigation by improving the accuracy of inertial navigation.
As early as World War II, German rocket expert von Braun gave birth to a groundbreaking missile navigation system, with the support of inertial navigation, the strike radius of the German army increased geometrically, causing countless civilian casualties.
Since the name has "inertia" in it, its positioning mode must be related to the trajectory of movement.
To put it simply, it is divided into two modules: measurement and calculation, the measurement part mainly relies on a series of sensors such as accelerator, gyroscope, electronic compass, barometer, wind direction, etc., and all the data monitored can be uploaded to the computer in real time to calculate the movement trajectory according to a certain algorithm.
It doesn't matter how it works, we just need to know that it's a stand-alone system.
Inertial navigation is good at everything, the only drawback is that if you want to be as accurate as possible, you have to spend crazy money to make up for the lack of equipment.
In order to make its own navigation system reach the world's peak again, the United States even used quantum technology this time, and the continuous 3D cooling atomic beam interferometer was officially incorporated into the advanced inertial measurement system.
China stands on the third floor
Don't look at the fierce behavior of the United States, what is opening a new era of navigation systems? Quantum navigation technology leads the world? A lot of nonsense is said, in fact, this continuous 3D cooled atomic beam interferometer still belongs to the category of measurement equipment.
An inertial navigation system requires a mess of all sorts of sensors, and the United States has only succeeded in taking a small step.
They use laser cooling and magneto-optical trap technology to reduce the temperature of atoms to absolute zero, and at a few degrees of low temperature, the thermal motion of atoms is extremely weak, which can hardly affect the observation data, so it is possible to observe the motion of atoms more accurately.
"Continuous 3D cooling" is to improve the accuracy of observation, and the "atomic beam interferometer" is used to carry out the observation task, under the interference effect of the quantum mechanical wave function, a beam of cooled atoms will be divided into two branches, and the two branches will move according to different paths, resulting in completely different phase changes.
When the two branches coincide, due to the different phase differences, they will produce interference patterns with each other, and with the interference patterns, their influence on each other can be analyzed.
It is undeniable that this technology does have very significant advantages in real life, its accuracy is high enough, and the noise is small enough, and it can definitely achieve a surprising winning effect when placed on a stealth fighter or stealth submarine.
But it would be an exaggeration to say that the United States is once again leading the world.
As early as December 8, 2017, Continental has successfully developed a prototype of an atomic gyroscope. The space quantum science experiment satellite "Micius", independently developed by the mainland, was successfully launched as early as 2016, and in 2022, it has successfully achieved the barrier-free transmission of 1,200 kilometers of surface quantum states.
In the 75 years since the founding of the People's Republic of China, China has never stopped running, because it has fallen behind, because it has been at a loss, we will never rest on our laurels, keep forging ahead, and keep making breakthroughs, which is the way of China's scientific research.
It is precisely because of this that China has been able to overtake the latecomers again and again in corners, and the quantum navigation system of the United States is indeed very good, but who can say that China does not have more excellent technology? Let's wait and see.