Chapter 864 Believe me, our satellites are for civilian use!
Of course Chang Haonan didn’t have to write the patent himself.
Anyway, he had already sorted out the core calculation process before.
As for the other parts that need to be inked, most of them are clichés and can be left to the students who are new to the research group to complete.
Wang Jie, who has not left for Shanghai yet, is very suitable.
After all, writing patents is a specialty of the postgraduate stage and must be tasted.
As for Chang Haonan himself...
After deploying the mission, he set off for the Science and Technology Commission.
Since he promised Zhuang Bingchang to fight for a place for his... seed, he would definitely not break his promise.
……
Before setting off, Chang Haonan made a special call to confirm whether Ding Gaoheng was in the office——
Although he still had the authority to scan his face to enter, after all, he had not been to the National Defense Science and Technology Industry for several months. Appointed.
The last time I met Ding Gaoheng, he was invited to his home for dinner just after he sent out the paper proving the Poincaré conjecture.
Coming here this time, I even felt a little like revisiting my old place.
“Director Ding.”
Chang Haonan came to the door of Ding Gaoheng's office, habitually preparing to knock on the open door and then walk in directly.
But as soon as he finished speaking and before he could raise his hand, he saw another person sitting in the room.
So, he stopped.
When outsiders are around, you still have to act more formal.
Ding Gaoheng, who was talking to the man on the sofa, heard a knock on the door and turned his head to see Chang Haonan standing at the door.
"Xiao Chang, come in and sit down."
When the other person heard Ding Gaoheng calling Chang Haonan, he immediately turned back and looked over.
They are still acquaintances.
"Director Luan?"
A moment of surprise flashed in Chang Haonan's eyes.
But then he walked forward and shook hands with the other person:
"Long time no see."
After saying that, he sat on another sofa next to him.
Luan Wenjie, Director of the National Space Administration.
This is indeed such a coincidence——
Although Chang Haonan called Ding Gaoheng just now, he did not explain the specific purpose of his visit.
Nominally speaking, the overall commander of the manned space project is the director of the Commission of Science, Technology and Industry for National Defense, namely Ding Gaoheng.
But this is mainly for the convenience of coordinating the power of the entire military industry system, and the nominal component is relatively large.
So, in order to give Zhuang Bingchang a breeding opportunity, Luan Wenjie would have to go to Luan Wenjie in the end.
It turned out that the rightful owner happened to be there.
However, Chang Haonan did not speak immediately after sitting down.
We are all colleagues under the same system. Now we are not competing for houses or land. We still have to talk about first come, first served.
However, although Chang Haonan did not interrupt the topic, Luan Wenjie took the initiative to look at him.
"Mr. Chang, Director Ding and I just mentioned you."
"Oh?"
Chang Haonan, who was originally going to be in a daze for a while, became interested.
You can't predict the situation between two people, right?
"Mr. Chang, you should know that our country has launched a total of three resource series remote sensing satellites independently and in cooperation with Brazil."
Luan Wenjie did not use doubts tone, so Chang Haonan just nodded slightly.
Of course he knew this. After all, the satellite image that led to a series of topics and projects came from the Ziyu-201 star.
The former immediately continued:
“In the past few years, especially in the six months since the launch of the two Ziyu-2 satellites, space-based remote sensing has helped us solve many problems that were not easy to overcome in the past. Of course, this It also borrowed a lot of light from Mr. Chang. "
Borrowing from Chang Haonan naturally refers to the high-dimensional data dimensionality reduction algorithm he developed.
However, Chang Haonan himself was a little confused.
“Wait a minute, Director Luan.”
He raised his hand and interrupted the other party:
"I have just begun to study the data obtained through data dimensionality reduction. Can this borrow my light?"
Chang Haonan has indeed relied on That algorithm has processed several different data, but the further results, whether it is the desert soilization he conducted himself, or the geological analysis of the permafrost and loess plateau that was previously handed over to other systems for research, have not been produced yet.
Why did you “solve a lot of difficult problems”?
I haven’t exerted my strength yet?
But the way Chang Haonan looked at Luan Wenjie, it was obvious that he wasn't joking.
The interrupted Luan Wenjie and Ding Gaoheng looked at each other and explained with a smile:
"The data that was lowered from the too high dimension still needs to be analyzed by Mr. Chang, but some After reducing the dimensionality of relatively low-dimensional data, we can still dig out a lot of useful content by increasing the sampling density and comparing it with known geographical information. "For example, in July this year, we relied on this data. He predicted in advance a large-scale flash flood and debris flow in Ziyang County, Qin Province, and evacuated people from 12 towns in advance, avoiding at least hundreds of casualties..."
Chang Hao Nan suddenly realized.
High-dimensional data is just a general term.
As Luan Wenjie said, it can still be divided into three, six, and nine grades internally.
After dimensionality reduction, the forms of low-dimensional data are also different.
The only thing in common is that because they have become two/three-dimensional data, they can all be directly recognized by human perception.
Of course, just because 2D and 3D data can be read does not mean that it can be easily understood.
That’s why the data verification mentioned before is needed.
Because Chang Haonan is the developer of the algorithm, and coupled with the openness, the focus of attention is naturally on the data with higher original dimensions.
The amount of information hidden behind these data is greater, but correspondingly, it is more difficult to parse.
But the route chosen by the space agency is the normal route of easy first and then difficult.
So it’s normal to be able to produce some results quickly.
In particular, the risk of geological disasters such as flash floods has obvious characteristics.
If there is an earthquake, it may be more troublesome.
At least the algorithm he is currently developing will definitely not be able to handle it.
Chang Haonan is naturally happy to see this.
After all, the route he set for himself when he was reborn was not just to take out the finished product from Doraemon, but to drive the development of related industries in China.
In the fields of aviation and machinery, he has achieved this goal.
As for aerospace, now is at least a good start.
While Chang Haonan was thinking secretly, Luan Wenjie took a sip of the tea on the table, and then returned to the previous topic:
"In short, through the application of this period of time, the superiors The unit has also intuitively realized the role and urgency of building a space-based remote sensing system, so it has approved a new amount of funds for us."
"Will we launch other remote sensing satellites?"
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Chang Haonan now understood what the other party meant.
“Yes, but this time it is not a resource series.”
Lan Wenjie replied:
“Originally, according to the plan, we would do it between 2002 and 2003. Launching my country’s first marine resources satellite, Haiyang-1A, provides services such as marine biological resource development, marine pollution monitoring, and marine scientific research to the Ministry of Land and Resources and the State Oceanic Administration.”
“But now there are. After receiving this funding, we are ready to accelerate the progress and strive to advance the launch mission to the first half of next year, and no later than the third quarter of next year.”
"Then...what do you need me to do?"
Chang Haonan asked bluntly.
After Luan Wenjie heard this, he no longer cared about what he said:
“The current resource series satellites transmit the original data from the satellite data system, and then our ground station The advantage of processing and obtaining results is that the satellite requirements are relatively low, but data transmission and exchange can only be carried out when the satellite is overhead, and the timeliness is very poor. "
"Of course, the resource series satellites mainly serve the territory of our country. , This is not a big problem, but the Ocean series satellites are mainly targeted at the Pacific region. If we continue to use the old method, it may not meet the requirements.”
"So, we hope to hand over at least part of the data processing process to the onboard computer, which can greatly alleviate the transmission pressure..."
Hearing what the other party said, Chang Haonan immediately curled his lips:
"Director Luan, the development of marine biological resources, as well as marine pollution monitoring and marine scientific research... don't seem to be very timely, right?"
He thought to himself that if Ocean One only had With this function, I dare to eat the satellite.
Sure enough, after hearing his question, Ding Gaoheng, who had been sitting behind the desk without speaking just now, showed a smile and said to Luan Wenjie:
"I just said you can't fool him..."
Then he looked at Chang Haonan and explained:
"In the past few years, we have been working in the Soviet Union's 'legendary' ocean surveillance system Based on the technology, an active radar system for large and medium-sized surface targets has been developed. In addition to the tasks just mentioned by Comrade Wenjie, Haiyang-1 is also responsible for testing the effectiveness of this radar. "
Chang Haonan's eyes widened slightly.
He just guessed that this satellite must have military purposes, otherwise there would be no need to pursue front-end data processing and timeliness.
But playing such a big game is completely unexpected:
“I remember that the legendary system needs to be powered by a space-borne nuclear battery. Our Ocean One...”
“Then Definitely not."
Luan Wenjie shook his head:
"The safety of nuclear batteries is too scary. Fortunately, our radar equipment consumes relatively low power and has not been used for satellites. A data link system that directly communicates with the fleet, so the solar panels are enough to serve..."
"So that's it..."
Chang Haonan has not yet completely recovered from the shock -
The "Legend" ocean surveillance system was the core of the Red Navy's anti-aircraft carrier system in the 1980s. Including active US-A and passive US-P, the target can be positioned individually based on the baseline interference phase comparison method, or dual satellites can be combined for active and passive composite positioning.
Although its positioning accuracy is relatively average, only at the level of 100 meters or even kilometers under different conditions, anti-ship missiles with active radar seekers themselves do not require particularly precise target information.
It seems that in recent years, China has bought a lot of things from the north that were not available in the previous life.
If the ocean surveillance system can be built more than ten years in advance, it will definitely be a huge threat to the US military, which highly relies on the naval fleet for physical deterrence.
Combined with the anti-ship ballistic missiles that he had considered before...
Isn’t this the ultimate weapon?
(End of this chapter)