After hearing Lu Jiadong's words, Song Xiaoxu on the other end of the phone was stunned and immediately rubbed his eyes that were a little red because he stayed up late and said:

“The old-fashioned 515-meter-wave radar?”

"That's right, it's the old-fashioned 515-meter wave radar!" Lu Jiadong's voice was confident and firm, and then he continued to speak in a more intense tone:

"Of course, there are many derivative models of this radar, but I think the most suitable one for improvement now is the 515 B meter wave radar equipped on large-class destroyers. After all, the land-based model 515 meter wave radar is just a two-coordinate radar, and the detection distance of the target is no problem, but the detection accuracy is not satisfactory. When using combat, the altitude measurement radar must be assisted to achieve three-coordinate positioning;

In this way, the structure of the radar marshalling is too large, which is not conducive to maneuvering deployment. What's more, the altitude radar signal beam is not the same as the meter-wave radar, and it cannot realize continuous wave conversion. It cannot detect stealth fighters, nor can it avoid attacks from anti-radiation missiles;

In this regard, the 515 B type equipped by the brigade-level class has been overcome. After all, the space on the ship is small, so it is impossible to integrate the altimeter radar together. It can only use the meter wave radar itself to achieve monitoring and detection of long-range targets. Therefore, this radar has made certain improvements at the beginning of its launch. Although it has not fully realized the three-coordinate detection capability, it is much easier to improve it......"

Lu Jiadong held the phone in his hand and talked freely. He knew the 515 radar very well. However, what others didn't know was that Lu Jiadong was not familiar with the 515 radar. The reason why he could tell the 515 radar was because he was very clear about the birth of another model of meter wave radar, that is, in later generations, he became the main ship standard equipment h/ljq-517 air-to-air alert thunder, that is, the famous 517-meter wave radar!

Speaking of the 517-meter wave radar, its origin can be traced back to the 515-meter wave radar equipped by the brigade-level major missile destroyer. When building the brigade-level major missile destroyer, there was an important combat mission, that is, the brigade-level major destroyer undertakes the air defense radar warning ship and cooperates with the land air defense forces.

The air defense warning range was extended to the sea for hundreds of kilometers, but at that time, China's military electronic level was very backward. In addition, its understanding and use experience of carrier-based radar systems resulted in no high-performance carrier-based radar for its equipment. In desperation, the developers at that time could only make a slight improvement in the land-based 515-meter long-range warning radar and then installed it on a large-class destroyer.

Although this expedient solution solves the task of the brigade-level air defense warning ship, the problem of not adapting to the land and water has never been solved. After all, the land environment is very different from the marine environment, especially the harsh climate and humid salt spray at sea, which has a huge corrosion effect on electronic equipment.

In addition, the 515 radar itself has disadvantages such as poor anti-interference ability, slow reaction speed, and low detection accuracy. Therefore, when the Chinese Navy obtained a more advanced carrier-based radar system, it eliminated all the 515-meter-wave radar without hesitation. This can be seen from the radar systems equipped by many 051 improved models and 052 missile destroyers in the 1990s.

Logically speaking, it is a foregone conclusion that the 515-meter wave radar is completely submerged in historical dust under the impact of the new generation of air defense radars. But as the saying goes, things are unpredictable. Just when the 515-meter wave radar was preparing to pass, China's anti-stealing technology made breakthrough progress. In addition to using atmospheric electromagnetic wave disturbances to locate stealth fighters, another practical way is to use meter wave radar to perform detection and positioning...

The Chinese Navy not only extends the air defense position on land, but also needs to carry out independent air defense operations in the long sea. Because of this, how to fight against the threat of stealth fighters has also become a research topic of the Chinese Navy. When it learned that meter wave radar can detect stealth fighters, naval equipment experts immediately thought of the 515-meter wave radar equipped at the brigade level that year.

Although this radar has many shortcomings, after so many years of equipment and improvements, the overall suitability and maturity are incomparable to other radars. As long as modern electronic technology is slightly improved, it can become a powerful tool to strip away the outer coat of stealth fighter aircraft. Therefore, a 517-meter wave radar based on 515-meter wave radar was born...

Even after being equipped with phased array radars, known as the "Chinese Aegis Shield", a 517-meter-wave radar appeared on the more advanced 052d several years later. At this point, this radar became a standard equipment of the Chinese Navy. The successful counterattack from nearly eliminated old equipment has also become a story that the military system enjoys relish. As a military expert who traveled through time in later generations, Lu Jiadong did not personally participate in the development of the 517 radar, but this story is familiar.

The reason why it has not been mentioned before is that Lu Jiadong is also a perfect person at heart. Although the 517 radar is feasible, its detection capabilities of stealth fighters are not perfect and cannot be compared with professional anti-stealth radars in the phased array system. Therefore, if a phased array system radar can be developed, Lu Jiadong naturally wants to get it done in one step.

But time is a bit urgent now. If I can't catch up with the Iraq bidding, all of it will be in vain. It is precisely because of this that when he received Song Xiaoxu's somewhat pessimistic feasibility report, Lu Jiadong could only settle for the second best, first solve the problem, and then take the path of diligence and improvement, so he proposed the 517 radar plan.........

"As for the improvement, I think it is still necessary to improve the specific performance of the radar, such as detection accuracy, strengthen anti-interference capabilities, and improve data processing capabilities. Of course, the adaptive frequency agility of interference analysis is also indispensable. After all, anti-radiation missiles are an important threat that cannot be ignored. As for the radar system, I think it will not be changed. As long as it can be integrated on a heavy-load truck......"

After listening to Lu Jiadong's narration, Song Xiaoxu was a little surprised at first, but then he felt a burst of ecstasy. His hands holding the microphone were trembling slightly, so that his tone changed a little:

"Use 515 radar to improve and enhance accuracy.............................................................................................................................................................................................................................................................................................................."

After a burst of excitement, Song Xiaoxu couldn't help but blame himself. His annoyed tone accompanied by the sound of "pa~~pa~" slapping his palm on the forehead, which came into Lu Jiadong's ears along the phone line, making Lu Jiadong smile and persuaded softly:

"Why do you want to slap your head? Don't blame it too much. You know, it's not that it can't imagine it, but that you make it overworked and feel drowsy all day long. How can you remember it?"

Lu Jiadong is right, it is not that Song Xiaoxu can't remember it. You should know that the development unit of the 515 radar was the Central Plains Electronic Radar Institute back then. Song Xiaoxu could not be unfamiliar with this. It's just that he was thinking about a more advanced phased array system and ignored other methods. In addition, some people in the authorities were confused. With a little reminder, they would naturally be able to integrate it. However, Lu Jiadong could see it clearly, but Song Xiaoxu didn't think so:

"Mr. Lu, don't polite me. I still have to overcome my old habit of riding a donkey and looking for a donkey. To be honest, if you hadn't kept mentioning the points from the side, the anti-stealing radar would not have reached the present. To be honest, if you were not Mr. Lu, there would be no anti-stealing radar!"

"Okay, okay, stop putting a high hat on me anymore. At best, I'm just a paper talk. Let me say yes. If I really want to do it, I really can't do anything. So the real hero is Xiaoxu and you guys!"

Lu Jiadong said it in his heart. Although he is familiar with the military electronics fields such as radar, it is limited to this. If he is asked to do something, it would be a bit boring to put it on the shelves. The reason why he can explain the relevant principles is just to occupy the identity of a time traveler.

Just talk about the basic principles of equipment that have been mature. As for the real implementation, it depends on military technicians like Song Xiaoxu who have solid skills and rigorous attitudes. However, Lu Jiadong's heartfelt words fell into Song Xiaoxu's ears, which was another refreshing motivation:

"Mr. Lu, you are really...your kindness, I, Song Xiaoxu, remembered in my heart. I am just a military electronics person and I can't say anything, but I will tell you with practical actions that Mr. Lu, you have never seen the wrong person!"

After hearing this, Lu Jiadong was stunned for a moment, and then he realized that Song Xiaoxu had a wrong idea and wanted to explain it immediately, but he stopped him as soon as he spoke. He just smiled helplessly and said:

"I believe you will be the best in this field!"

"Don't worry, Mr. Lu, I will never let your expectations down..."

In this way, the two of them talked for a while and further determined some details of the improvement of the 515-meter-wave radar. Lu Jiadong then put down the phone, and at this moment, the door was suddenly knocked gently. Lu Jiadong immediately opened the door and saw the secretary standing at the door holding a stack of documents, which made Lu Jiadong a little confused and asked:

"You are..."

"Mr. Lu is the test data for the missile test launch you want. The test site has just been sorted out!"

Looking at the information in the secretary's hand, Lu Jiadong remembered that he had returned from abroad and had not even gone to Shencheng Factory. He came here directly for the test launch of the air defense missile, so he nodded:

"I just called Mr. Song and almost forgot about this. How about it? How is our air defense missile performing?"

"This..." The secretary hesitated for a moment, then handed over the information forward, and said without objection: "Mr. Lu, you should read it yourself!"

When Lu Jiadong heard this, he didn't care. He turned the information twice, and his smiling face suddenly froze on his face, and then he said with some anger:

"Why is it less than the success rate of the fourth level? Why don't you report such a big thing..."
Chapter completed!