Chapter 1043: Informationized Air Combat

As a transmission control protocol spawned by traditional network forms, TCP itself does not care about the specific medium in which IP runs. However, in practice, this matter must be taken into consideration, because most TCP protocols are implemented during the program implementation process. We have all experienced optimization based on some assumptions, many of which are correct on wired networks but not on wireless networks.

Take the simplest transmission timeout as an example.

Once it is determined that packet loss has occurred based on the retransmission timer expiration or repeated ACK signaling, the current TCP protocol considers that network congestion has occurred, and then enables network congestion policies to reduce the transmission rate, such as slow start and adjust the congestion window is 1 TCP segment.

However, the actual situation may be that the data transmission at this time is based on the wireless network. When the ACK signaling cannot be received, it is most likely because the mobile node is switching or the signal of the wireless network is not good. Therefore, correct Instead, the strategy is for the sending node to maintain or speed up the rate.

For military equipment, including early warning aircraft, the network media situation is more complicated.

From the radar to the in-flight command platform, this process is probably a wired transmission distance of about 1-2km.

For the aircraft to send the information to the outside world, it needs to go through a wireless network of 100-200km, or if it is satellite communication, it may be thousands of kilometers.

In this case, if you want to make the right decision, you need to first consider which paragraph the problem is...

As Chang Haonan walked and analyzed, everyone quickly came to a small room next to the assembly workshop.

This place was actually a workers' lounge at first, but currently Haofei Group's final assembly business is almost all concentrated on the J-H-7A next door. This workshop for large aircraft does not have many workers who need to take turns to rest, especially the Air Police 2000 Since entering the site, engineers and technicians have been here almost all day long.

So in the end it was simply changed into a small conference room.

Of course, the conditions are definitely not as good as outside, and there isn't even a projector that can be connected to a computer.

But for Chang Haonan, having a blackboard is enough for most problems.

He took the familiar route to the middle of the house and took a piece of chalk from the table at the door.

Others sat down on chairs in a circle around them.

"Actually, the data that early warning aircraft need to process seems very complex, but it can generally be divided into two categories."

Chang Haonan turned around as he spoke and drew a brace on the blackboard:

"The first is data that has extremely high timeliness requirements but is insensitive to lost data packets. A typical example is the air condition data detected by the radar of early warning aircraft."

"At the target speed of air combat, a piece of information or a piece of information will be useless after a few seconds at most, and for modern phased array radars, the target will not be lost due to the lack of individual points, so communication analysis What the system has to do is to deliver it to the destination in the shortest possible time. Once the transmission fails or times out, it will directly abandon such data..."

"..."

"The other type requires extremely high transmission reliability, but some compromises can be made in terms of timeliness, such as combat intentions from superior units or conveying action instructions to terminal combat aircraft. This type of data must be 100% complete. It can be conveyed successfully, but in most cases, this kind of information is effective for a long time and will not lose its usefulness just because it is delayed for a few seconds..."

Chang Haonan's pen moved like flying, and he quickly wrote several keywords corresponding to these two types of information on the blackboard.

At this time, a voice came from a corner of the room:

"Mr. Chang, the combat instructions you just mentioned should generally be transmitted directly through encrypted radios. As long as the second type of command information is excluded from the functions of the communication subsystem, the remaining parts will be easier to design. "

Chang Haonan happened to have finished writing the last word on the blackboard at this moment and straightened up again:

"If we only look at the present, this is indeed the best option."

"But in the long run, in future information operations, command orders may not necessarily be issued through voice commands."

This sentence made the surrounding audience stunned:

"ah?"

In fact, at this point in time at the beginning of the 21st century, the Chinese military and technical personnel have already begun research and exploration of new combat theories, and have achieved some results.

However, due to hardware and cost constraints, these explorations still exist more on paper and in a few experimental units.

Most of the people sitting in the conference room are ordinary front-line engineers, and it is normal for them to not know enough about these things.

For people of this era, it is relatively easy to understand the matter of "using information flow instead of voice to convey empty information."

But using information flow to convey command orders does seem a bit abstract.

After all, if it is text, the information density is not as good as speech.

Only Guo Lin, who was sitting at the front, lowered his head and pondered, seeming to understand what Chang Haonan meant.

"Our past command orders were issued step by step."

When Chang Haonan saw this, he explained directly:

"For example, the command headquarters issues large battle targets to the early warning aircraft, and the early warning aircraft then issues air situation information and campaign arrangements to each fleet. Finally, the frontline commander at the regiment or group level arranges specific orders for each combat unit, so that each The level instructions themselves are relatively simple and can naturally be transmitted by voice.”

"However, even if the information itself can be transmitted within a few seconds, it takes a process for the human brain to understand and process the information, especially for grassroots commanders who are themselves in the middle of a battle."

"So, a better way is to let the early warning aircraft or even higher-level headquarters take on part of the low-level decision-making and information processing, and then directly convey the command information to the combat units. In this way, not only the burden on the front-line commanders is greatly reduced, but also the burden on the airborne commanders is greatly reduced. Units can also get rid of the organizational constraints of aviation regiments or aviation groups and conduct operations in smaller and more flexible waves.”

“But it also means that the instructions that need to be conveyed at each level will become extremely complex.”

Having said this, he rotated the blackboard next to him 180° and drew two circles on it:

"For example, if one of our regiments fights against one of the opponent's regiments, under the original command method, this is equivalent to one unit fighting against one unit. Just give the order to expel, intercept or fire through voice commands. As for how to implement it specifically, That’s what the flight commander is worried about.”

Then, many small triangle symbols were drawn in the circle:

"But now, we need to directly command 24 aircraft to fight against the enemy's 24 aircraft, then..."

Chang Haonan looked again at the people sitting around the conference room.

"The complexity of the instructions will become hundreds of times greater than before!"

Guo Lin picked up the words just right:

"So the command information and air situation information need to be sent to each combat aircraft in the form of a data link."

"That's right."

Chang Haonan put down the chalk and patted the dust on his hands:

"Micro-management has two sides. If it is done well, the weak will defeat the strong with a magic touch. If it is not done well..."

He did not continue.

However, a burst of laughter still erupted in the small room——

The transportation team captain’s micro-manipulation meme has been widely circulated even in this era, so everyone knows who he is targeting.

"Information warfare, to a certain extent, is to reduce the difficulty of micro-operation for commanders and reduce the intermediate levels of command to achieve maximum efficiency in the transmission of information."

After the little joke, Chang Haonan concluded:

"And air combat, due to its ever-changing nature, is the occasion where the effect can be most intuitively reflected!"

Although Chang Haonan has never successfully joined the army in his two lifetimes, he was an experienced veteran with many project experiences in his previous life, and he still understands these basic concepts quite well.

If you go to a military academy to give a lecture, you may still have to show your timidity.

It is certainly sufficient for the occasion at hand.

Facts have also proven that this explanation works well.

Everyone quickly accepted the concept he proposed before and began to think about how to achieve the goal technically.