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, but in practice, this matter must be Take this into consideration, because most TCP protocols have experienced optimization based on some assumptions during the program implementation process. Quite a few of these assumptions 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 timeout 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 speed Start and adjust the congestion window to 1 TCP segment.
But 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 wireless network signal Not good, so the correct 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.
To send the information to the outside world from the aircraft, 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 section the problem is...
As Chang Haonan walked and analyzed, everyone was very surprised. We almost arrived at 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 certainly not as good as those outside. There is not even a projector that can be connected to a computer.
But for Chang Haonan, having a blackboard is enough for most problems.
He took a familiar route to the middle of the house, and on the way he 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 complicated, 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.”
“In the air At the target speed of combat, a piece of information or a piece of information will be useless after a few seconds at most, and for modern phased array radar, the target will not be lost due to the lack of individual points, so the communication subsystem needs to be The purpose is to deliver it to the destination in the shortest possible time. Once the transmission fails or times out, such data will be abandoned directly..."
"..."
"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 actions to terminal combat aircraft. Instructions, this type of data must be 100% transmitted successfully, but in most cases, this type of information is valid 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. The second type of command information is excluded from the functions of the communication subsystem, and the remaining parts are 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, then this is indeed the best choice."
" But in the long run, in future information-based operations, command orders may not necessarily be issued through voice commands.”
This sentence made the surrounding audience stunned:
<. br>“Huh?”
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 limitations, these explorations still exist more on paper and in a small number of experimental troops.
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 in 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 all issued level by level.”
Seeing this, Chang Haonan explained directly:
“For example, the command headquarters The battle objectives are assigned to the early warning aircraft, which then distribute the 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. In this way, the instructions at each level are relatively simple. Of course it can 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 have the early warning aircraft or even higher-level headquarters undertake 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 front-line commanders will have a great burden Reduced, air units can also get rid of the shackles of the organization of aviation regiments or aviation groups and conduct operations in smaller and more flexible waves."
"But this also means that each level needs to convey instructions. The content will become extremely complicated."
At this point, he rotated the blackboard 180° and drew two circles on it:
"For example, let's fight with one group. Under the original command method of the opponent's regiment, it is equivalent to one unit fighting against one unit. All it takes is to give orders to expel, intercept or fire through voice commands. As for how to execute them specifically, that is a matter for the flight commander to worry 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!”
Guo Lin added 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 took a photo He 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 captain of the transportation team’s micro-manipulation joke 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 the commander’s micro-operation and reduce the intermediate levels of command to achieve the maximum efficiency of information transmission.”
小After the small joke, Chang Haonan concluded:
“Due to the ever-changing nature of air combat, it 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 proved that this explanation has a good effect.
Everyone quickly accepted the concept he proposed before and began to think about how to achieve the goal technically.
(End of this chapter)