Chapter 1007 Air Force Data Link
??Zhang Weiyong understood the meaning of Chang Haonan''s words almost immediately:
“You mean, we need a practice series satellite... uh... preferably a satellite group?”
“That’s right.”
?Chang Haonan finally fully unfolded the map of Yan State and revealed the "dagger" in it.
Immediately afterwards, he also emphasized one sentence:
“And, I need to be in the driver’s seat.”
Hearing this unabashed idea, Zhang Weiyong almost subconsciously held his breath and opened his eyes slightly.
You must know that the "practical" scientific exploration and technology test satellites are a specialized series.
Specially launched for a certain item or type of technical testing.
?For example, Shijian-1 demonstrates satellite long-term in-orbit technology.
The Practice-2 Group verified the satellite''s independent power supply and temperature control technology, telemetry tracking capabilities, and ionospheric environmental composition.
?Shijian-4 verifies the space radiation environment...
Obviously, they are all basic research closely related to the application of aerospace technology.
However, from the launch of Shijian-1 as a backup satellite for Dongfanghong-1 in 1971 to 2002, China has only launched a total of 5 batches of 7 Shijian series satellites in 31 years.
Hence, trivial projects will definitely not get this kind of treatment.
At most I’ll give you a lift—
Not only are you not involved in the R&D and operation management of the satellite itself, but even the control of the satellite equipment you install is in the hands of others.
Just sharing the data with you.
This is obviously completely unacceptable for most projects.
?Hence, even such ruthless work as the ocean surveillance system first took advantage of the launch of Haiyang-1 to have the opportunity to go to space for technical verification.
?Later on, the supporting role became the protagonist, and the Ocean Bureau was pushed to the sidelines. That was another story...
In any case, Zhang Weiyong, as the satellite chief engineer of the aerospace system, has never dared to have the idea of ??"testing the water with a practical satellite for a certain project."
And Chang Haonan, an "outsider" to the aviation system, actually opened his mouth to such a big job...
It’s actually a bit…
?Zhang Weiyong originally thought that newborn calves are not afraid of tigers.
But after careful consideration, I found that the manager Chang in front of me was only young, but he had a lot of work experience.
??He is a hard-core person who is 26 years old but has 6 years of work experience.
Thinking about it again, I found that although the other party’s idea seemed wild, it was not unworkable.
Compared to a relatively narrow application field such as ocean surveillance, communication technology can be said to be one of the cornerstones of modern human civilization.
And relay communications are as important as air, water and bread in today''s global network era.
For a moment, Zhang Weiyong also had some ideas.
As a human being, there is no difference between having no dreams and being a salted fish.
?However, if he said such a thing, it would definitely not count.
?Even Luan Wenjie couldn''t do anything.
“Mr. Chang, this matter still needs to be considered in the long term...”
Zhang Weiyong immediately became serious and suggested based on his understanding of this system over the years:
“To become a practical verification star, the technology application must first be broad enough, and the other is operability...”
“Application is not a problem…”
Chang Haonan said almost without thinking:
“Network coding technology solves the shortcomings of insufficient bandwidth and long delay in traditional communications...At present, almost all communication methods are troubled by these two problems.”
“Not only inter-satellite links, but also terrestrial wired networks, radio equipment, data links, industrial sensors, underwater acoustic communications...anyway, they can all be used.”
"Of course, network coding technology requires relay nodes to have encoding and decoding functions in addition to forwarding, so the size and cost of the equipment must be much higher than now. For civilian networks where bandwidth restrictions are not serious and stability is not a concern, Generally speaking, the cost-efficiency ratio may be relatively low..."
? Packet loss while playing games, lagging while watching movies... Although it is also very annoying, if the cost of solving the problem is to spend ten times the price to buy a router and pay the Internet fee, it may not be very popular with users.
“So, the entire technology is basically for commercial and military use…”
Zhang Weiyong had already taken out a notebook from somewhere, and while recording it, he concluded:
“But it’s enough. Although the civilian network is large in scale, the market is actually limited..."
?Chang Haonan wanted to correct the other party''s thinking, but after thinking about it, it was only 2002, and it would not affect the things at hand, so he gave up in the end. "Then it''s feasible...it needs to be tested on the ground before going to the star..."
Halfway through his words, he was interrupted by Chang Haonan waving his hand:
“Mr. Zhang, as I said just now, you don’t need to worry about these previous issues.”
"Our group still has a very tight task at hand, which is to approve a new model project in April. After this busy period is over, I will first verify the MRD code combined with network coding on a new model of the Air Force. The engineering feasibility of the technology…”
?The "new model of the Air Force" mentioned by Chang Haonan actually refers to the large-scale early warning aircraft that has been transferred to research and development.
Like the previous life, it was named Air Police 2000.
? It’s just that the carrier aircraft was changed from the IL-76 to the C909 that has been modified for long range, that is, the luggage compartment space is replaced by a fuel tank.
?For the sake of stability and the formation of combat effectiveness as quickly as possible, this model still chooses a relatively traditional active phased array configuration, and the array is designed as a back-to-back C-band/L-band double-sided array.
As for the more radical optically controlled phased array, it will be verified by a small balanced beam antenna that is being carried out simultaneously but mainly for foreign trade.
Wait until the performance is completely stable before considering exporting to domestic sales.
??Although it is an electronically scanned radar, the disc-shaped radome of the Air Police 2000 can still rotate at the fastest speed of 6 revolutions per minute.
It is not for scanning, but for adjusting the angle to make up for the blind spot in the field of view caused by the double-sided array.
In addition to the performance improvements that will naturally come from platform upgrades, Chang Haonan is also preparing to introduce the Air Force data link system to Air Police 2000 for the first time.
Of course, since there are currently not enough communication satellites, aircraft can only use direct transmission in most cases, or rely on ground relay stations to exchange data, and the effective range is relatively short.
Only about a few hundred kilometers.
??But for the Chinese Air Force, whose main combat areas are concentrated around the country and whose mission is mainly active defense, this is still a huge improvement—
??Due to the short development time and relatively hasty service, the previous Air Police 200 can provide reconnaissance and early warning functions, but it can only share data and command through radio voice communication.
In other words, the target discovered by the Air Police 200 is just information of "azimuth xx, distance xx, quantity xx" to the fighter pilot.
Although AESA can update the target situation hundreds of times per second, the commander''s speaking speed is always limited.
Hence the information is still not real-time and accurate enough.
??As for the targets discovered by the Air Police 2000, even if the fighter jet does not turn on the radar due to concealment considerations, or the target is far outside the detection range of the fighter radar, it can still be displayed directly on the multi-function display through the data link.
?In terms of paper data, there may not be much difference whether there is a data link or not.
However, the timeliness and intuitiveness of information have been greatly improved.
Absolute combat power multiplier.
This Air Force data link is almost an excellent opportunity to verify network coding technology.
?Zhang Weiyong, as a professional in satellite development, is not aware of the twists and turns in the early warning aircraft project.
But seeing Chang Haonan''s resolute attitude and obviously having a plan in mind, he decided to follow the other party''s arrangement after hesitating for a moment:
“Then what I should do next…”
"Mr. Zhang, your next task is to carry out some pre-research work from the aspects of space launch and satellite design. In particular, you must prepare all relevant information. After I get the engineering verification data, you can complete the project as soon as possible and transfer it to Officially developed!”
Hearing this request, Zhang Weiyong could not help but frown.
It’s not that he finds the job difficult.
On the contrary, it’s actually too simple…
“Mr. Chang, I will definitely do this kind of thing even if you don’t have to tell me. I just want to ask, is there any more... important work?”
?Seeing him look so calm and relaxed, Chang Haonan smiled.
Obviously, the other party doesn’t know what he means by “as soon as possible”.
“If there is no force majeure interference, I hope to put the satellite into space within two years…”
∣
?Zhang Weiyong almost spit out the water before he could swallow it.
He originally thought that the other party wanted to officially launch the project within two years.
result…
? ? ?
(End of this chapter)