Radiolocation technology has been widely used as early as World War II. However, it is really close to people's lives, I am afraid it will have to wait until the popularization of smartphones, and even after the emergence of apps such as WeChat mobile navigation.

The invention of the base station positioning function really doesn't know how many dewy mandarin ducks in the same city 419 have been promoted.

Its principle is also very simple, the two base stations draw a circle according to the time of the signal echo, one of the two points where the circle intersects is the position of the mobile phone, and the positioning antenna can be used to accurately obtain the positioning information.

This is a very common positioning application under the condition of mobile networks with abundant base station resources in the future.

Of course, if there is one more base station, the position of the signal can be accurately determined in three-dimensional space.

Therefore, three-base station positioning is a mode that is more suitable for the battlefield.

In particular, the benefits of the base station positioning method are obvious, and if you want to improve the accuracy, you only need to increase the number of base stations.

When computing resources are abundant, the more base stations, the higher the positioning accuracy.

And as long as there are three fixed base stations with known coordinates to provide the initial conditions of the equation, it is easy to add mobile base stations.

The positioning of the mobile base station can be used to improve the positioning accuracy of the signal, maintain a certain network resilience on the battlefield, and adjust the positioning accuracy of a certain area at any time according to the needs of the battlefield.

The accuracy of this base station positioning allows for rapid conversion between 150 meters and 10 meters.

If there are any insurmountable obstacles to this technology, there is really no hardware to it.

A function that can be used by a smart machine in the future is just a matter of the accuracy of the timing of the crystal oscillator.

The temperature-compensated crystal oscillator commonly used in mobile phones in later generations was not a new technology in China in the 80s.

Therefore, after Hu Wenhai gave a positioning formula, the well-known Nanjing 14 Institute in China quickly came up with the finished product.

Speaking of this Nanjing 14 Institute is remarkable, but anyone who has heard its deeds has not given a thumbs up.

It is the birthplace of China's radar industry, and has always been the research frontier of domestic electronic communication analog circuits, radar gratings and other technologies.

It can be said that China's radar has the confidence not to be lost to anyone else in the world today, and the 14 Beijing Institute has definitely made an indispensable contribution, and even made great contributions to the country.

For the 14 institutes, which have a research team like bright stars, it is not too simple to piece together a positioning system without requiring product finalization and functional integration when there is a positioning calculation formula.

Hearing that it was about a large order of $7 billion in the army, the 14 institutes came up with a complete set of base station computing and signal systems without even a week's use.

And when Hu Wenhai had just returned to the imperial capital from Changsha, they had already carried out on-site networking, battlefield assembly, debugging and testing on the Laoshan frontline.

After the Iraqis succumbed to the negotiations and stopped dwelling on price and other issues, the positioning and communication system had already begun to be in public beta.

In China in the 10s, once the whole country was mobilized to do something, the forces that could be mobilized were still quite terrifying.

Whip-shaped antennas were erected on the top of the hill near the three old mountains, and then the original tunnel was expanded, and the belly of the entire mountain was hollowed out and converted into a computer room.

These mountainside computer rooms are filled with the latest product of the Modu Electronic Computer Factory, the DJS-185 small computer.

This fully PDP11/35-compatible 16-bit small form factor computer has 128K RAM, 10M hard disk and floppy disk storage, and supports keyboard input and external displays.

It's about the size of a 24-inch CRT color TV, but it's capable of delivering a 6MHz clock.

This is equivalent to at least half the performance of Apple's Macintosh computer, and a single computer can meet the positioning service of 100 signals at the same time.

However, this is on the premise that there is no promotion of frequency modulation technology, anyway, the electronic warfare technology of Annan Xiaoba on the opposite side is actually very watery, and it is not at the same level as the Iranian tyrants.

Even if he really threw the launch pad of the BP machine to the front line of Laoshan, Annan Xiaoba didn't know what it was at all.

In short, before the Spring Festival in 1985, the Laoshan front line was ready at this time, just waiting for the arrival of the Iraqi delegation.

A Boeing 707-320C landed at Chuncheng Airport, this kind of aircraft is now a treasure in China, and the full number of passenger transport in China is only 10, and generally speaking, it will not fly to Kunming, which has no oil and water routes.

But then again, the Air Force's own transport planes are really out of their hands.

Nowadays, the Trident passenger aircraft used in a large number of domestic civil aviation, this flight record is a little frightening.

So the discussion came and went, but the Air Force still gave up its old face and asked for a Boeing 707 with the Civil Aviation to transport the Iraqi delegation from the imperial capital to the front of the Spring City.

This kind of aircraft can transport 147 to 219 people at a time, and the Iraqi inspection team plus the escorts of the Air Force, including the military industrial units and scientific research personnel of various ministries and commissions, as well as some people who did not join in the fun, and Hu Wenhai.

In the end, 140 people were really put together to fill the Boeing 707 plane.

In the self-defense counterattack against Annan, after suffering enough from remote control command in the early days of the war, ** delegated the power of war command to the hands of the former commander of Chuncheng.

This Iraqi inspection group is going to inspect the results of informationized operations on the spot, and on the premise of ensuring security, this is the end of the road at most.

The real Laoshan frontline, of course, it is impossible to let a god of wealth get into danger.

Many important leaders of the former command of the Chuncheng Military Region appeared at the airport, and the entire Chuncheng entered a state of martial law, with three steps, one post, and five steps and one sentry on the road.

Although this is already considered a large rear, no one knows if there are Annan spies lurking among the millions of citizens, and it is always good to be careful to sail the ship of ten thousand years.

At this point in time, we are on the eve of China's million-dollar disarmament.

Who will merge the two military regions of Chuncheng and Rongcheng is as vague as hiding in a thick fog.

Although the possibility of the Chuncheng Military Region is greater, the generals of the Military Region and the former commander still regard this actual combat inspection as a major effort to protect the Chuncheng Military Region.

In the early years, the color projection effect of the projector was quite average, and if you want the color projection effect, you must be in the darkroom.

However, as a campaign command center, it is obviously impossible to work in the darkroom, so the display problem of C3I command is put on the table.

Fortunately, this year, Japan's SONY launched a new projector product that applies liquid-cooled refractive projection tube technology, expanding the projection range to a level of 100-inch 3000 lumens.

Now in the senior headquarters of Spring City, there is such a projector that can be used during the day, and a 100-inch screen on the wall.

No, it shouldn't be said to be a curtain, in fact, what is hanging on the wall of the headquarters at this time should be a 100-inch high-scale topographic map of the Laoshan front.

"Mr. Ahmed and my Iraqi friends, please wait a minute, the system is generating a real-time troop deployment map. Let me first tell you about the course of the battle that took place in the Laosan area between our army and the army of Annam. ”

It was a staff officer who spoke in front of Chuncheng, and with the unique proud tone of the Chinese ** people, he first briefly introduced the enemy and friend situation on the Laoshan front line on the topographic map.

After the Battle of Laoshan, that is, from April to May 1984, when the Chinese People's Liberation Army recaptured the Laoshan position, and then from June to July, the recapture campaign launched by the Annan army.

When the staff officer described how Annan's army had been lurking for a day and a night within 500 meters of our forward positions in order to achieve the suddenness of the battle, the Iraqis were already exclaiming again and again that this was impossible.

When they heard that the commander of the squadron had already suspected that someone was lurking at that time, and fired two salvos from two artillery battalions, but the enemy did not react at all, even Ahmet had to euphemistically express his suspicions.

When the Iraqis heard two rounds of fire organized by the squadron, they accurately hit the enemy's hidden battle formation.

Two battalion commanders were killed on the spot, and the soldiers suffered heavy casualties.

However, when the troops that lost their command were not exposed, and there were no light or serious wounded, the entire inspection group suspected that the Chinese side was lying and boasting about the enemy, and the eyes of the People's Liberation Army pointed in front of the city were already full of distrust at this time.

When they heard that the squadron had finally won in the face of such a strong enemy, all the Iraqis had calmed down.

Since it is the Chinese side that is bragging, let's listen to it.

However, immediately afterward, Chuncheng Qianzhi came up with a lot of evidence.

Including photos of the battlefield, newspaper articles from Annan, combat reports of front-line fighters, and messages from the Chinese side at that time...... As the evidence mounted, Iraqis remained unable to speak.

Because they asked themselves if such a situation happened to the Iraqi army, or if the Iranians had the fighting power of the Annan army...... Then you can only pray for the blessing of one Supreme Being.

But in the face of such an enemy, the squadron not only won the victory in the end, but also the casualties were not proportional at all, the squadron was really terrible!

"Mr. Ahmed, Mr. Ahmed?"

A translator surnamed Zhang patted Ahmed and asked a little worriedly, "Are you okay?"

"Oh! I—"

Ahmet swallowed, shook his head in distraction, and said, "It's okay. ”

It's no wonder, the Iraqis have been frightened by the difficulty of the East Asian monster room.

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