As cautious as usual, the crow did not reach its destination once, but got off at a certain subway entrance of Line 3 and then dragged his suitcase into the subway entrance. Pen % fun % Pavilion www.biquge.info

In the passage, the pedestrians rubbed shoulders, their footsteps were hurried, their expressions were sluggish, and they looked at the time from time to time, and the rush hour of work was also a period of time when there were relatively few people who bowed their heads.

The crow nimbly weaved through the crowd and followed the crowd towards the platform. Young men and women with shoulder bags or briefcases in professional suits, and a coat to keep the focus on the crow. Agents of the military's counterintelligence department divided into two groups and bit the crow.

Outside, on the side of the road, the Iveco command car pulled over, still in a regular place with a temporary parking space, and the engine was idling.

Enron is still responsible for the central dispatch, and soon connected to the monitoring system of the underground transportation network, which can easily call up the real-time picture of a certain monitoring head at a certain station at any time.

Liu Weihong is still on the command vehicle, and as a commander, his position is not on the front line.

Looking at the crows squeezing into the subway in the crowd in the surveillance head, Liu Weihong suddenly thought of a possibility - he was also moving his stronghold.

If you want to run, you will run as early as when Mary is caught. After killing Adong's group of robbers, in fact, he was about to be exposed, and the crow still chose to stay, which shows that he will not leave Jinling easily.

Excluding the possibility of escape, there seems to be only one possibility left - to move to a stronghold, or to a more secluded point of safety.

The question is, why did he transfer?

Could it be that your own tracking team has been exposed?

Seeing Liu Weihong closing his eyes and pondering, he safely controlled the sound of tapping on the keyboard.

If the tracking team isn't exposed, then what's the reason?

Liu Weihong suddenly opened his eyes and asked, "Has the target's activity route in the high school district been recorded?"

An Ran didn't react, but still subconsciously replied: "It's recorded!"

"Open!" Liu Weihong sat up straight, as close to the display as possible.

Enron quickly called up the surveillance video to open it, and at the same time called up a map map automatically drawn by the software according to the traces of the target's movement, including how many times it passed at a certain point, layer by layer, little by little, to form a simple and clear schematic diagram.

From the beginning of entering the high campus, within half an hour, the crow drove past the Aerospace Research Institute three times, and his movement route looked irregular at first glance, but in fact it showed a certain situation, and on the whole, the route was drawn into two partially overlapping figures of 8 and 0.

An Ran saw that Liu Weihong's face gradually soothed, and immediately used the computer to analyze the exercise route, and then quickly reported several data: "Thirteen circles, three eight-figure routes, three times through the Aerospace Research Institute, three times through the National University bus station." ”

Liu Weihong's mind flashed the number on the card of the move-prostitution, 13304875211, and asked, "What is the name of the road at the southeast gate of the National University?"

"Seventy-one Road. ”

"How many 211 schools are there in the high district?"

An Ran's fingers flew and replied, "5." ”

Liu Weihong breathed a sigh of relief, found the photo of the recruitment-prostitution card, pointed to the number on it and said, "It corresponds." The fourth and sixth digits are the shape of the route, and the other digits are based on these two digits in time. ”

An Ran suddenly realized, "They are really willing to work hard!"

Soon, she asked suspiciously, "But what's the point of this, and what does it have to do with 211 universities?"

Liu Weihong said, "There is no connection with 211 universities themselves, but there is a connection with their location. ”

As he spoke, he decisively ordered, "Immediately send a request to the people of the national security to assist in the investigation, follow the route of the crow's movement, and send people to investigate every point they pass through!

An Ran was taken aback, and his face was full of disbelief.

"Joints, you don't have to meet. Liu Weihong said in a deep voice, "The purpose of the joint is to transmit information, if there is a better way to transmit information, it doesn't matter whether you meet or not." ”

An Ran calmed down, and the more he thought about it, the more he realized this truth. The inertia of thinking believes that the joint is equal to meeting, but in fact, the essential meaning of the joint is to transmit information. Since there are safer ways to accomplish this purpose, it is natural to avoid meeting as much as possible.

Basically, she can imagine that the inner line is very likely to scatter the information that needs to be transmitted on several points along the above route, and choose a normal display method to prompt in a secret language that only a crow can understand, or that only a crow can decode.

It's incredible to think about, because it's a huge project that requires a lot of effort and time. It also shows that the spies hiding in the internal system are very cautious!

After these speculations flashed through his mind, Enron also conveyed the order.

Liu Weihong rubbed his nose, finally couldn't hold back, took out a cigarette and lit it, then adjusted the gear of the exhaust system to the highest gear, and said, "One thing is basically certain now, the mole is in the Aerospace Research Institute, maybe a traitor." ”

Speaking of this, Liu Weihong smiled coldly, "These people are going to the enemy identification system." ”

Hearing this, Enron was shocked again -- the identification system of friend or foe is the core of the core.

The C4ISR system, to be precise, is the basic part of the Army's tactical data link system, to use a figurative analogy, the Army's tactical data link system is the Army's own Internet, using this network to link each combat unit to achieve highly flat command and control and reconnaissance intelligence collection.

For example, the instant messaging software used by ordinary people, QQ or WeChat, everyone is equal in communication authority, as long as they are friends, they can exchange information anytime and anywhere, that is, communication. The reason why information spreads so quickly today is precisely because of this flat way of publishing and broadcasting. An incident that happened in the northern region at three o'clock in the morning may be known to the people on Hainan Island in ten minutes.

If the military achieves such an efficient means of communication...... What is the way through which command and control is realized, through communication, the command organ issues orders, and according to the current method of communication, it takes too long to get to the troops carrying out the operation layer by layer. And if the command and control is flattened, the supreme command organ can even directly send orders to a combat team of several people at the lowest level, and at the same time send a copy to the relevant command organ.

The reason why the US Air Force dares to shout the slogan of five minutes to arrive is because they have this highly efficient command and control system. Army combat units call in air support, communicate through the previous data link between the Army and the Air Force, and the decision-making body issues an order, and the fighter aircraft patrolling in the air or the carrier-based aircraft on duty can arrive in any area of the battlefield within five minutes to carry out fire support missions.

Under this efficient strike efficiency, there is a very important problem that needs to be solved, that is, the identification of friend or foe. In the Gulf War, the number of casualties in the US military was much higher than the number of casualties in action, and the reason was that the US military used traditional radar friend or foe identifiers at that time. This kind of recognizer has many shortcomings, such as the difficulty of penetrating the wind and rain on the battlefield, and the difficulty of distinguishing land battlefield targets that are intertwined and approaching each other in the rapidly changing battlefield environment.

It was not until after the war that the introduction of millimeter wave technology solved the biggest problems to a certain extent, and with the development of technology, the reliability of laser irradiation technology was greatly improved on the basis of millimeter wave technology.

As a core component of the Army's tactical data link system, the performance of the new Friend or Foe identification system will definitely not be much worse than that of the US military's active service.

How important is the identification system of friend or foe?

The key is the code, and if the code of the friend or foe identification system is deciphered by the enemy, the most serious consequence is that the over-the-horizon strike will be completely paralyzed, and the troops will suddenly revert to visual combat -- you have to know that the enemy is on the opposite side before you can attack.

One can imagine how serious the consequences will be.

Enron's shock is not difficult to understand. (To be continued.) )