Regarding Xu Yang's question, Chang Haonan couldn't figure out the mystery for a while.

The L005S electronic jamming device, which is similar to the principle of this thing, is quite compact, and can even be hung on the wingtips of the Su-27, and the level of the United States in the field of integrated circuits is obviously much higher than that of the big brother in the north, and it seems that there is no need to come up with such a stupid and coarse design.

But this kind of problem involving engineering practice, relying on brainstorming alone has absolutely no future.

You still have to come up with a prototype to do experiments.

And don't look at Chang Haonan and Xu Yang It took half an hour to analyze the hardware structure, but in fact, even if this job only relies on 14 institutes, it will only take a few more weeks to complete.

In order to truly reproduce the electromagnetic interference function of this pod, a series of problems such as software design and functional debugging need to be solved.

Fortunately, with such a reference, the flow from circuit principle to circuit design should be easy to follow.

"So ...... next"

Guo Lin subconsciously turned his head to look at Chang Haonan next to him.

"Next, we will first test the part of the wreckage that is not completely damaged, and then design a thing with the same function according to our analysis to see if we can completely restore the effect of the American pod......"

Chang Haonan arranged the next tasks in an orderly manner.

After improving his management skills to lv2, he has gradually become accustomed to leading a team of 10-20 people, so he is quite handy at this time:

"Because we have no way to analyze and decode the software part of this device, the algorithm design of the FPGA can only be done by ourselves, but Researcher Xu should be very good at this aspect."

Xu Yang, who had been suppressed by Chang Haonan for a whole day, finally found what he was good at, and readily agreed:

"No problem, digital signal processing should mainly involve distributed algorithms (DA), and if the performance of our components, especially DPRAM, is not enough, I can also allocate a DA implementation structure to multiple independent N-order parallel DA lookup tables to reduce the size of the table and save some hardware resources."

"It would be nice if we could."

If others were so big-governed, Chang Haonan might have to worry a little more, but Xu Yang's foundation in algorithm theory is still credible.

The efficiency of the two thighs far exceeded Guo Lin's previous expectations, and he was almost impatient to start the next step of the research plan, so he rubbed his hands excitedly:

"Then we'll get to work after dinner?"

"You don't have to be in such a hurry......

Chang Haonan looked at Guo Lin, who looked like he was full of fighting spirit, and said with a smile:

"It's okay to follow the usual rhythm, let's not rush any time now, and it's only right to maintain long-term efficient work."

"Oh yes......"

Guo Lin scratched his head:

"And you two just rushed over, and we haven't picked up the wind yet, so we let you start work."

Laughter erupted in the not-so-spacious conference room.

Anyway, after deciding on the next schedule, everyone changed into civilian clothes and prepared to go upstairs to eat.

"Chang Gong, Researcher Xu, although the roast duck in Beijing is very famous, this duck is also unique in our Jinling eating method, you must try it."

When he was about to walk out of the door of the building, Guo Lin, who was in a good mood, said to the two people who followed him.

Chang Haonan is no longer surprised that he is regarded as a person from the capital, as for Xu Yang...... Judging by the accent, she should really be a native of the capital.

"Okay."

When facing the vast majority of people, the latter's communication method still highlights a concise and to the point.

Chang Haonan, who was next to him, did not answer, but just looked back at the building behind him in a daze.

"Speaking of which, your R&D building actually has two underground floors?"

Although Guo Lin didn't know why Chang Haonan suddenly asked this, he still replied truthfully:

"That's right, but the ventilation of the underground part is not very good, and it is rarely used in normal times, and it is precisely for this reason that the institute decided to put this pod there, so as not to be hit by people who don't know the inside story."

Theoretically, anyone who can enter a building should have a sufficient level of secrecy, but it's always right to be careful.

For all the others in the know, this can only be regarded as a trivial arrangement.

But in Chang Haonan's heart, it is different.

Put a high-tech gadget seized from the Americans in the basement.

There were so many elements of this incident that it was hard for him not to think of a rumor that had been widely circulated in his previous life.

A rumor related to the Balkans and the F117.

Although judging from the content of the later decryption, this statement was completely made out of nothing, the incident that occurred near the turn of the century can definitely be called one of the eternal regrets of the vast number of Chinese people in the previous life.

"Speaking of which, have you ever studied other aspects of jamming equipment before the 14th Institute of the Electrical Science Department, such as...... Interfering with satellite navigation signals or something? ”

After thinking for a while, Chang Haonan finally found a less out-of-the-box problem as an entry point.

"Our main direction is radar, so there will be more research on anti-jamming."

Guo Lin, who didn't know anything about the inside story, just thought that the other party was chatting casually, and immediately shook his head:

"That being said, in fact, at present, in our country, whether it is interference or anti-interference, the main research is passive factors, such as environmental clutter, active interference and anti-interference means before basically only theoretical pre-research, and now this is the first time to implement a real project."

"Do you think that the design idea of the jamming pod can also be used to interfere with satellite transmission?"

"Oh, that's not it."

Chang Haonan pretended to be nonchalant and replied:

"Frequency-shift jamming is aimed at the coherent accumulation technology used in the process of PD radar signal processing, which is of little use for jamming satellite navigation signals, and can only be used to simulate the Doppler frequency shift characteristics of the received signal at most, which is not a core technology."

"I just looked at the pod and wondered if we could install a similar portable jamming device in our equipment or in a critical location that needed to protect against satellite-guided weapons...... Eh, repeating the mistakes of the Iraqi army in 91? ”

At this time, the Chinese people's understanding of modern warfare basically came from the Gulf War, or strictly speaking, from all kinds of legends about the Gulf War.

"If Dr. Chang is just going to interfere with GPS civilian receivers, then there is actually no technical difficulty, because the signal characteristics are all public, as long as you simulate a navigation signal with the same characteristics but stronger power."

This time it was Xu Yang who answered the phone:

"But the source code of military GPS is kept secret, and more and more accurate signal recognition technology will be used, so I am afraid we need more sophisticated control theories and algorithms."

Obviously, this is not a direction that will see immediate results.

But fortunately, Chang Haonan still has time.

It's about a little over two years.

"Of course I know this, but now that the radar jamming pod project is over, GPS jamming can be used as a future research direction."

(End of chapter)