The Military-industrial Scientific Research System of the Academic Master Chapter 893

Chapter 893 No, more advanced

This is a meme that is easy for scientific research dogs to understand.

In addition to being used as a verb to highlight, highlight, and emphasize, there are also some academic journals that require authors to sort out the eye-catching key points in the content of the paper and write them at the beginning of the article, which is also called highlight.

Even if you have never engaged in scientific research, this word is actually the same as the Chinese name "Gaoming", and it is easy to connect it with the mission characteristics of the early warning aircraft.

In short, it fully meets Wang Xiaomo's requirements for “Chinese and English puns”.

Of course, what the name is, after all, is not the point.

For a project with such high new technology content that it is likely to exceed 70%, the most critical thing is to be able to proceed step by step.

Otherwise, it is easy to lose focus and end up in a mess.

Hence, although this is an almost entirely foreign trade-oriented model, it still needs support from higher-level units.

It will be difficult to coordinate the power of other systems even if the two companies of Dianke Group and Aviation Power Group can come up with a certain amount of funds.

Furthermore, the technology of optically controlled phased array radar will definitely ultimately serve China's own national defense construction.

Foreign trade models are just a by-product of the technical verification process and serve as a source of revenue and expenditure, as well as the collection of user data.

Therefore, Chang Haonan and Wang Xiaomo hit it off immediately and compiled a feasibility report as quickly as possible, explaining the application prospects of the idea of controlling microwave signals by optoelectronic signals and optoelectronic components from both theoretical and engineering aspects.

Then they submitted it jointly.

A few days later.

Commission of Science, Technology and Industry for National Defense, in the director's office.

Ding Gaoheng has been staring at the twenty-page report on the table for a while.

That's right, just look.

It is not reading.

Because I haven't turned a page for about twenty minutes.

What's more, he has read this report over and over again no less than ten times since he got it.

Except for the parts other than mathematical formulas, it might be an exaggeration to say that I can memorize them backwards and forwards, but if I memorize them straight on, I guess it won't be a big problem.

Before serving as director of the Commission of Science, Technology and Industry for National Defense, Ding Gaoheng had been engaged in the research and development of inertial devices and navigation systems for a long time.

Although it sounds unrelated, this research direction actually involves dealing with other detection systems including radar.

As for the control system and control theory, it can be considered as a specialty.

So, he used to think that he “knew a little bit about radar”.

Today, however, he had doubts about this self-perception—

I seem to...

I don't know much about radar either…

“Comrade Xiaomo, Comrade Haonan.”

Ding Gaoheng sat up straight, looked away from the report on the table, and looked at the two people on the sofa on the other side of the office:

“I know that a few years ago, the United States proposed a research and development plan for a next-generation destroyer called DD21. A key part of it is DBR, a dual-band radar.”

“Is our multi-band radar... similar to the American DBR?”

DD21 is actually the later famous DDG1000 Zumwalt class destroyer. It is actually still in the final stage of project bidding.

Anyone with a little discernment can see that there is a high probability that the plan proposed by Boeing and Raytheon will win.

On paper, the various technical and tactical indicators of this new destroyer are quite advanced.

After all, it's 2001—

Even though the United States in this timeline has suffered many additional setbacks in the military, political and economic fields compared to previous lives, few people still doubt its strength in the technological field.

Even the most foresighted person would find it difficult to imagine that the industrial level of the United States would experience an extremely outrageous cliff-like decline after entering the 21st century.

If anyone says at this time, the U.S. military's package of “next-generation equipment plans” ranges from LHX Comanche helicopters, XM2001 Crusader self-propelled artillery, JSF joint strike fighters, to CG(X) cruisers, and then to DD(X) destroyers , LCS Littoral Combat Ship... all will end hastily or come to an end, and I'm afraid they will be directly regarded as crazy.

In short, right now, when everyone is developing new equipment, they will still unconsciously benchmark it against similar concepts from the US military.

but…

Chang Haonan is not among them after all.

“The dual-band radar of DD21 actually combines an S-band and an X-band radar on a common information processing back-end device, which is equivalent to using one set of back-ends to control two front-ends at the same time.”

“Our multi-band radar concept uses the same set of hardware from the front-end antenna to the rear-end I/O equipment to realize the collaborative work of two or more bands.”

“So…from a principle perspective, it is much more advanced than DBR.”

This description made Ding Gaoheng's heart beat a little unsatisfactorily.

After all, I am already 70 years old, so I still can't bear to encounter such a big surprise:

“So, should we transmit electromagnetic waves of several different frequency bands at the same time, or should we arrange multiple sets of transmitters/receivers and then flexibly switch to different bands according to needs?”

“This… mainly depends on the specific application scenario.”

Chang Haonan explained:

“Because signals of different frequencies can be separated, it can be technically achieved.”

“It's just that transmitting and receiving signals in multiple bands at the same time will put a lot of pressure on the back-end information processing process, so it is more suitable for platforms that are not sensitive to size and can deploy sufficient computing power, such as large early warning aircraft and fixed radar stations. , radars on large and medium-sized ships.”

“For fighter jets, vehicles, or small and medium-sized ships, their back-end processing capabilities may be limited. They can also only work on the same frequency band at the same time and then switch as needed.”

“In addition, even in the latter case, there is no need to set up multiple transmitters/receivers.”

After Chang Haonan finished explaining, Wang Xiaomo continued to add:

“The radar front end can be made exactly the same as the previous one by using adjustable frequency-selective permeability materials on the radome.”

“For example, I can transmit X-band and C-band signals at the same time. When long-distance detection is required, the radome can selectively pass through the C-band and absorb the X-band. When precise locking is required, the reverse is done.”

Originally, according to Wang Xiaomo's understanding, for fighter jets, field of view should be more important than bandwidth.

Chang Haonan said, however, that the phased array radar of a fighter jet can also be deployed on a rotating base to expand the effective illumination range by changing the angle. However, the ultrlong-range detection capability brought by the C-band is beyond the reach of traditional airborne radar.

However, the size of the fighter jet makes it difficult for it to process wide-band signals at the same time.

It's not even just a limitation of computer power.

Hence the second concept of “selectable frequency”.

“Then...I guess there's nothing to hesitate about.”

Ding Gaoheng said as he closed the report:

“Major special funding needs to be approved by superiors before it can be allocated. However, at the Science and Technology Committee level, we can first allocate part of the funds from this year's advanced technology research and development fund for your use.”

“In addition, if you need to coordinate units in other systems, you can report it directly to me, or to the new deputy director Li Zhongyi, who is currently responsible for liaison work outside the system.”

(End of this chapter)

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