"Director Lu, see if such a calculation is feasible!" In the early morning, the entire Zhongyuan Electronic Radar Institute has not completely woken up from yesterday's sleep, but it is located in the basic theory research room on the east side of the main building of the research institute, but it has already been flickering and unusually busy; since it was determined that there were serious defects in the basic mathematical calculation methods of the artillery radar in terms of signal and image processing, the Zhongyuan Electronic Radar Institute set up a special research team.

Liu Haotian, Tan Bin, and others, who were far away in Beijing, also attached great importance to it, and for this reason they specially summoned mathematical experts from major universities and academies in Beijing to conduct research and exploration, but even so, half a month has passed, and there is still no progress in the new mathematical calculation method for signal processing, and they are facing this last fierce obstacle on the road to the development of artillery radar.

The members of the development team were not discouraged and not discouraged, but devoted themselves to the research of selflessness, because they knew that discouragement at this time means failure, and now retreating is equivalent to abandoning the previous efforts.

Because of this, the signal calculation method research group that gathers the elites of the entire Central Plains Electronic Radar Institute can be described as very busy these days, and it is common for them to go out early and return late, and there are even more people who stay up all night to make the office their home, and Lu Jiadong, who is the deputy head of the entire artillery radar development leading group, naturally participates in it and puts forward many constructive opinions and ideas.

Although Lu Jiadong's words are not very many, as long as he speaks, he will always make everyone feel a sense of empowerment, so in the eyes of everyone in the research team, Lu Jiadong is not so much a leader in an important position, but a technical genius with a deep foundation, at this time Song Xiaoxu pinched the nasal bone in the middle of his eyelids, and handed Lu Jiadong the proof process of a new set of mathematical ideas proposed by Lu Jiadong yesterday.

Lu Jiadong took it into his hand, rubbed his somewhat stiff cheeks, and then flipped through a few pages. A pair of brows couldn't help frowning a few times, then nodded slightly, then pointed to the draft of the calculation in his hand, and said to Zhong Xiaomo, who was immersed in consulting information next to him:

"Chief Master Zhong. Xiao Song's calculation method, take a look!"

Listening to Lu Jiadong's question, Zhong Xiaomo couldn't help but raise her head, looked at the neatly written calculation draft of Song Xiaoxu in Lu Jiadong's hand, took it, flipped through a few pages, and the bright gaze in the slightly reddish eyes trembled slightly. But then it fell silent:

"This algorithm is indeed a bit new, but in general, it is also old wine in new bottles, and nothing has changed!"

As soon as Zhong Xiaomo's voice fell, Lu Jiadong was a little noncommittal, this is a set of mathematical concepts summarized by him according to the application theories of several radar signal processing in later generations, although because the time is a little long ago and Lu Jiadong only swept through the internal materials of later generations to see some introductions, he does not remember the specific mathematical derivation of these radars in signal processing very clearly.

But the general direction is still vaguely known, so Lu Jiadong feels that even if this method is flawed, those methods are still more advanced than at this time, because of this. After listening to Zhong Xiaomo's words, he couldn't help but ponder for a moment, but then he picked up the calculation draft again:

"Although the essence of this algorithm has not changed, is the idea worth learning from?"

"That's what I mean!" After Lu Jiadong finished speaking, Song Xiaoxu took over the conversation: "I think we are still bound by the original algorithm, and Mr. Lu's method just opens up a new way of thinking for us, as the so-called stone of the mountain can attack jade, teacher, look"

Song Xiaoxu said as he spoke, picking up paper and pen and writing a lot of mathematical symbols and calculation formulas on it, while Lu Jiadong and Zhong Xiaomo, who were sitting next to him, also expressed their opinions and ideas from time to time. In this way, the three of you once again had a heated technical discussion on the issue of artillery radar signal processing algorithms.

Since it was determined that there were serious deficiencies in the signal processing of artillery radars, discussions like this have been played out in this basic theoretical laboratory many times, but over time. The research work of the whole algorithm is like a stagnant, without the slightest progress, in the face of such a situation, Lu Jiadong said in his heart that he is not in a hurry, but that is impossible!

However, no matter how anxious Lu Jiadong was in their hearts, their minds knew very well that the new mathematical calculation method could not be achieved overnight. Innovation can only be made on the basis of corresponding experience, and because of this, although Lu Jiadong and his anxiety are overflowing, they have to be patient, carefully search for the information at hand, and recall the methods of future generations, in order to find the solution they dreamed of.

"It seems that this idea still doesn't work!" After the three of them discussed for a while, although Lu Jiadong was very reluctant on his face, he still said the truth in his heart that had been depressed for a long time, and after speaking, Lu Jiadong sat back in his seat, and then picked up the cup in front of him with a thick tea, and drank a few big sips, under the effect of the rich fragrance of the tea, some tired nerves were temporarily relieved.

In fact, Lu Jiadong has a vague impression of a very advanced set of radar signal processing operations in his later life, but I don't know if it's a long time or an impatient mood recently, this vague memory that seems to be within reach seems to be 108,000 miles away, no matter how hard Lu Jiadong tries to think about it, his head is like a pile of paste, and he can't remember it.

"Director Lu, why don't we discuss here first, see that breakfast in the cafeteria is about to start at this time, or let's come back after breakfast and study!" Looking at Lu Jiadong's tired look, Zhong Xiaomo, who was sitting on the side, couldn't help but look at his watch and persuaded sincerely, and as soon as Zhong Xiaomo's voice fell, Song Xiaoxu, who was opposite him, took the conversation:

"Yes, Director Lu, maybe after we finish breakfast, our minds will be opened!" Song Xiaoxu's stomach couldn't help but rumble at the mention of eating breakfast, and his face was even more full of deep yearning:

"A few days ago, there was a new Master Xiaobo in our cafeteria, and his craftsmanship is quite good, especially the big buns.

Song Xiaoxu was talking and suddenly felt that something was wrong, because Lu Jiadong, who was originally sitting firmly in his position, suddenly got up from his seat and looked at him incredulously, but just when Song Xiaoxu wanted to ask what was going on, Lu Jiadong was the first to speak:

"Xiaoxu, say what you just said again!"

"Say it again?" After listening to Lu Jiadong's question, Song Xiaoxu was a little confused, but he still replied 1510:

"I said big buns in the cafeteria"

"It's not this, what is the name of the canteen master you just said?" Before Song Xiaoxu finished speaking, Lu Jiadong couldn't wait to ask, and Song Xiaoxu naturally answered truthfully when he saw this:

"It's new, and it's not clear what his full name is, but everyone calls him Master Xiaobo!"

At this time, Song Xiaoxu was very strange why Lu Jiadong couldn't wait to ask the name of an irrelevant canteen master, Song Xiaoxu felt a little inexplicable, but Lu Jiadong, who was standing next to him, didn't regard this as inexplicable, but couldn't help but light up in front of him, his lips couldn't help but move slightly, and a series of inexplicable and wonderful words blurted out from Lu Jiadong's mouth:

"Xiaobo! wavelet wavelet calculation wavelet analysis wavelet function signal processing" Lu Jiadong said, while putting the pen in his hand on the table and lifting it again, then putting it on the table, and then lifting it again, repeating it several times, Zhong Xiaomo and Song Xiaoxu who were standing next to him saw Lu Jiadong's expression, and their faces couldn't help but flash an incredible look, how could a Xiaobo master make Lu Jiadong look like this?

But before Zhong Xiaomo and Song Xiaoxu could figure out what was going on with Lu Jiadong, they saw Lu Jiadong's pen lifted into the air fall heavily on the table, and then a long-lost smile appeared on his face, and his tired face was replaced by a thick look of excitement:

"How did I come up with such a simple method!"

Zhong Xiaomo and Song Xiaoxu are not low in terms of EQ or IQ, and after hearing Lu Jiadong's words, of course the two understood what they meant, so the two hurriedly stepped forward and asked Lu Jiadong:

"Director Lu, what method do you have in mind?"

"Yes, Director Lu, say it quickly!"

Looking at Zhong Xiaomo and Song Xiaoxu who were anxious in front of him, Lu Jiadong didn't sell it, but said straightforwardly with a faint smile:

"Our previous calculation methods are based on the Fourier transform theory, but we can't overcome the limitations of this theory, in this case, why don't we jump out of this box, start from the small aspects, and establish a more intuitive mathematical system than the Fourier transform, which is the so-called wavelet analysis!"

"Xiaobo analysis?" After listening to Lu Jiadong's words, Zhong Xiaomo and Song Xiaoxu both repeated in unison, and at this time, Lu Jiadong pulled out a few pieces of paper and wrote on them with a pen and said:

"Let's not talk about the limitations of the Fourier transform, if we reverse the principle of the transmitted signal of the radar, we can establish a set of inversion formulas, so as to play an irreplaceable role in signal processing, and the specific approach can be like this and so on."

Zhong Xiaomo and Song Xiaoxu looked at the large number of formulas and numbers written by Lu Jiadong on the papyrus, and their originally calm faces gradually became shocked (to be continued). )