Chapter 326: Light Source Radar
After Zhou Ying saw that Liu Lin had no opinion, she replied to Wang Xinyu: "No need, I have come out of the airport now, you can go directly to my hotel!"
"OK, which hotel are you staying in, I'll go with my daughter-in-law!"
"Yang Qin is free now?" Zhou Ying asked strangely, knowing that these two guys will have a wedding tomorrow.
"Sister, you must be free, even if you are not free, you must be free!" Wang Xinyu was afraid that Zhou Ying would misunderstand, so he explained: "Tomorrow is just a banquet, in fact, things have been arranged a long time ago, and now we are waiting for tomorrow to travel lightly, so there is nothing to do now." ”
"Okay, then you can come over together, at the Baiquan Mountain Hotel, send me a message when you arrive!" Zhou Ying sent the address to Wang Xinyu.
"Okay, it's going to be twenty minutes!" After Wang Xinyu finished speaking, he said directly to Yang Qin, who had been sitting next to him and waiting: "Wife, let's go, Sister Ying has arrived, she asked us to go directly to the Baiquan Mountain Hotel to find her!"
"Okay, you go drive, I'll go talk to my parents!" Yang Qin finished speaking and walked to the backyard.
"Okay, hurry up, don't let Sister Ying wait too long, she hasn't eaten yet!" Wang Xinyu turned his head and walked towards the door after looking at Yang Qin's disappeared sight.
“......”
Because Liu Lin and Zhou Ying sat in the back seat, he was a little assistant, so he naturally didn't dare to squeeze, so he could only sit in the passenger seat. See a bunch of messages pop up.
"Where are the people?"
"Why did it shut down?
"It's time to turn it on!"
"What about people?"
"Grandma hurry up and turn it on!!"
“......”
Zhu Yanqing looked at a bunch of messages, his face fell, oh my God, how many messages did this guy send, it's only been an hour: "I was on the plane just now, and I just got off the plane now, what's wrong?"
"My aunt, you're finally on, my brother is dying!"
"What's so urgent?"
Then the phone called!
Zhu Yanqing looked at the incoming call and immediately hung up.
"What's the situation, why don't you answer the phone?" followed by a row of expressions about to hit someone.
"As soon as I got off the plane, the boss and the lady were sitting behind me. Zhu Yanqing rolled her eyes and replied.
"Huh, what's the situation?"
"On a business trip with the boss, you should hurry up and say something, otherwise I won't have time to pay attention to you for a while!" Zhu Yanqing's crackling hands soared.
"My dad discussed with your dad just now, and the time will be arranged on the 22nd, depending on when you come, we will arrange it, and why did you come over, is it convenient to say?" Su Shaohua saw Zhu Yanqing's information, and he didn't detour anymore and went straight to the point.
"I'll ask my boss to get back to you later!" Zhu Yanqing secretly glanced at Liu Lin from the rearview mirror, and when he confirmed that it was convenient, he turned his head to Liu Lin and said, "Boss, Angang replied just now!"
"They said the time was scheduled for the 22nd, depending on when it is convenient for you?"
"Hmm..."Liu Lin hummed, thought about it and said: "After attending my friend's wedding tomorrow, I will rest for another night at night, and fly directly over the morning after tomorrow, I should arrive in Jilin at about nine o'clock, and go directly to the airport!"
"Boss, didn't you say that you were going to Jilin Jiangbei Machinery Manufacturing Co., Ltd. for inspection?" asked Zhu Yanqing.
"Then go to Anshan Iron and Steel first, and then go back to Jilin Jiangbei Machinery Manufacturing Co., Ltd. Liu Lin thought about it and said: "If you go to Jiangbei Machinery Manufacturing Co., Ltd. first, then it is estimated that you will still be running back!"
"Okay, then I'll communicate with Angang!" After Zhu Yanqing confirmed the time, he returned to Su Shaohua: "My boss will fly directly to Jilin the morning after tomorrow!"
"Then which airport are you flying to? I will arrange a car to pick you up when the time comes, girl, you can also get up and come back, and my brother will invite you to a big meal at that time." ”
"I don't know yet, it's a tight schedule, I don't know if there's time. ”
"Then ask your boss which airport you're landing at. ”
"Well, okay, I'll ask!" After Zhu Yanqing responded, he turned his head and reminded Liu Lin: "Boss, which airport will we land at the morning after tomorrow, Angang is not in Jilin Province." ”
"Then find the nearest airport to land. ”
"Okay, then can you land at Anshan Tengyu Airport? In the past, Angang arrived in almost half an hour!" Zhu Yanqing didn't know much about his hometown, so he casually reported the name of the airport.
"Yes. ”
"Okay!" Zhu Yanqing turned around and sent a message to Su Shaohua: "Landing directly at Teng Boiling Airport the morning after tomorrow!"
"Okay, then we'll arrange to pick you up, by the way, how many of you?"
"Me, my boss and my boss, there are only three of us, by the way, and a few bodyguards. ”
"Okay, I got it. ”
"Do you know what time it will arrive?"
"It's not decided yet, wait until the morning after tomorrow, I'll send me a message when I board the plane!" Zhu Yanqing thought about it.
"You can too. ”
"Now that the time has been set, what is the purpose of your coming?
"Didn't I tell you in the afternoon?" Zhu Yanqing blinked and asked in a strange tone.
"Remove the word "Mo!" Su Shaohua sent three expressions of contempt in a row.
"Forehead......" Zhu Yanqing was obviously unconvinced: "I obviously said it yesterday, you must have forgotten it, and you want to put the pot on my head, no way!"
Zhu Yanqing won't say that he forgot to say it in the afternoon.
Girls can sometimes have the right to be unreasonable.
"Okay, okay, you said okay, then trouble Miss Zhu again!" Su Shaohua didn't bother to bother with this girl who grew up watching him grow up, because he knew too well, if he talked about it again, it is estimated that this girl could talk to herself for an hour without panting.
It's better to admit it first, it's important to get down to business.
"My boss wants Angang to produce a batch of materials, Brother Shaohua, you must seize the opportunity this time!" Zhu Yanqing solemnly explained.
"Let's help produce a batch of materials?" Su Shaohua looked at the message sent by Zhu Yanqing, frowned, thought for a while and asked, "Can you elaborate on it?"
"I don't know about this, I don't understand the technical stuff. ”
"Okay, then I know, then we'll talk when you get there!"
"OK!" Zhu Yanqing took a look, and after saying what should be explained, he put away his phone.
“......”
Beijing AC Research Center!
In a conference room, there were dozens of young and old, young and old, wearing glasses, those who did not wear, those with gray hair, and those with green sideburns!
And sitting in the first seat is the big boss, and the third boss!
"Everyone is together, let's start Cao Lao!" said a white-haired old man about 60 years old wearing a navy blue military uniform with two bars on his shoulders!
"Okay, then I'll give you a good message to the chiefs and colleagues!" A nearly seventy-year-old man dressed in dark blue and wearing a pair of reading glasses stood up from the front row!
"Hello everyone, many of me may know me, but it is also possible that they don't know me, so let me introduce myself to you, my name is Cao Gan, and I will explain to you our AC Research Institute, the latest design of the light source radar!"
"Is that Mr. Cao?" Some of the younger researchers in the audience looked at the nearly seventy-year-old man curiously, with respect and reverence in their eyes.
"I've only heard of legends before, but today I've seen a real person!" a researcher looked at Cao Gan with longing eyes.
"Yes, I finally saw it today, I used to worship Cao Lao!"
Cao Gan held a laser rod in his hand, walked to the podium, pointed to the big screen behind him and said: "I will first explain to you the working understanding of the light source radar, so that everyone has a number in their hearts!"
"Light source radar, the meaning of which is that this kind of radar has no radiation source, it is to borrow the existing radio waves in space, reflected to the target to form an echo to detect the target. ”
"Without a transmitter, the light waves that reflect the target are with the help of radio waves already in space, which is called a radiation source other than radar, and this radar is called light source radar, also known as radiator-free radar. ”
Cao Gan paused for a moment when he said this, and looked at the audience, so that everyone could digest what he just said!
"Everyone, please look at the screen!" Cao Gan directly used the laser rod in his hand to slide the large screen behind him: "Since the radar itself does not radiate radio waves, this leads to changes in radar positioning methods, information processing and other related issues. ”
"From the radar itself, it is a non-radiation source, in fact it is active, and this source is an external radiation source. ”
Speaking of this, Cao Gan stopped, turned off the laser rod in his heart, turned around and continued: "In addition, this radar is a stealth radar, and the radar's nemesis anti-radiation missile is to track the radar radiation wave and attack it. ”
"Passive radar does not radiate radio waves into space, which will make the anti-radiation missile unable to find the location of the radar, so passive radar is a stealth radar in the real sense, and there is no need to use stealth materials and reduce the scattering, reflection and diffraction waves of the radar device. ”
"This is based on the fact that it works using opportunistic sources or synergistic sources, which correlate a direct wave from a radiation source with a reflected wave from a moving target, with the known receiving and transmitting locations as the two focal points of the elliptical plane, forming an ellipse. ”
"By using multiple radiation sources and multiple receivers, we can determine the intersection of multiple ellipsoids with each other, and determine the direction of the target, and finally obtain the target position information. ”
"What I just said above is the working principle of the light source radar, and I will tell you about his general performance later!" Cao Gan had already turned off the screen.
"The main technical indicators of light source radar are: long detection distance, high precision, real-time detection of multiple targets (including aircraft and missiles), all-round, all-weather surveillance, can be fixed and fast mobile coexist, can be installed on the ground, aircraft and ships. ”
"Of course, the light source radar cannot accurately control the waveform and emission direction of the external radiation signal, and the target echo signal is subject to strong ground clutter and multipath interference, and there are certain difficulties in the passive radar system to detect weak targets. ”
At present, the methods to suppress these interference methods are to rationally configure the system, optimize the antenna design, the terrain selection of the receiving station and the signal processing method. ”
"What I just said is the shortcomings of the light source radar!" Cao Gan paused for a while, looked at the dozens of people sitting quietly in the audience, and continued: "It is a shortcoming, then there will definitely be a good side!"
"Its advantages are that it has the characteristics of good concealment, strong mobility, low cost, anti-enemy reconnaissance and anti-stealth. ”
"Light source radar has many advantages such as anti-reconnaissance, anti-jamming, anti-stealth aircraft and cruise missiles, anti-anti-radiation missiles, anti-low-altitude penetration, etc., and is an important field of modern radar research. ”
"Light source positioning has a very important position and role in navigation, aviation, aerospace, electronic warfare and other fields. ”
"What I said above is the approximate parameters of the light source radar, everyone here, everyone is the mainstay of our country!"
"Some are big in terms of materials, some are big in processing, and there are big in electronics, let everyone come today, mainly to ask you to help come up with ideas, now the light source radar design is out, we have also tried to produce one, but the finished product is too far worse than our design requirements!"
"The main problem is still in the material, and the processing of the precision problem, because the light source radar is a large radar, plus the accuracy requirements are too high, and now there are still three major problems not solved, the whole project can be said to have stopped!"
"But our No. 2 aircraft carrier has already been installed in the later stage, and we don't have time to study it slowly, so we have today's meeting!"
After Cao Gan finished speaking, he said to the staff on the side: "Xiao Zhang, you send the information to everyone!"
Because the big boss and the third boss were all present, they all listened to Cao Gan's explanation quietly and did not raise any objections.
After more than ten minutes had passed, and the materials had been distributed to everyone, Cao Gan propped his hands on the table in front of him and said, "Chen Gong, your C Institute has always been at the forefront in China in terms of accuracy. ”
"My A-758 accessories can't be processed because of equipment problems, or the processed ones can't meet the technical requirements!"
"NOW THE PARAMETERS WE REQUIRE ARE 857YP FOR REFRACTION, -895BD FOR RECEPTIVITY, AND 0.05MM FOR ACCURACY, I DON'T KNOW IF YOU CAN HELP TACKLE THE PROBLEM!"
After Cao Gan finished speaking, he looked at a middle-aged man in his fifties wearing a gray tunic, with expectant eyes.
CHEN YUAN OF RESEARCH INSTITUTE C STOOD UP, LOOKED AT THE INFORMATION IN HIS HAND, FROWNED AND SAID: "OLD CAO, I TOOK A LOOK JUST NOW, THE SPECIFICATION OF YOUR A-758 ACCESSORIES IS 5600X2350X1500MM, IF YOU WANT TO ACHIEVE AN ACCURACY OF 0.03MM, I'M AFRAID IT WILL BE VERY DIFFICULT!"
"If it's a small accessory, don't say 0.05, even if it's 0.01, I'm sure to help you process it!"
Because the eldest boss and the three bosses were there, Chen Yuan was embarrassed to say no directly, and Xingneng reminded him euphemistically.
"In our C research institute, there has always been a shortcoming in large-scale processing, although we now have a super machining center, which can only add small accessories, and we have also thought about amplifying the super machining center in large-scale aspects, but the effect is very unsatisfactory!"
"I can only say try it here, but I don't dare to pack a ticket to you!" Chen Yuan thought about it after speaking, and then asked: "Old Cao, I don't know if I can split this A758 accessory into several small accessories?"
"No, because there is a very dense circuit diagram inside!" Cao Gan shook his head.
"That's it, after the meeting is over, I will go back to the technical staff of the research institute to communicate, and try my best to process this accessory!" Chen Yuan now regrets coming to this research meeting.
It's a lot of pressure!