klisemfg Chapter 312: Didn’t the fans want Yuwei to build a ship? Here it comes!
Chapter 312: Didn’t the fans want Yuwei to build a ship? Here it comes!
In a flash, a month passed.
During this period.
The construction of the coast guard ship is proceeding in an orderly manner in the confidential workshop of Yuwei Shipbuilding Military Shipbuilding.
In the workshop.
Tang Xinghai, as well as many technical and scientific research personnel, are as usual.
Without Li Yang's invitation, he took the initiative to walk to what they called the "teaching platform".
"Mr. Li's class has started..."
A co-worker made a joke and the whole place suddenly burst into laughter.
Li Yang heard this.
I couldn't help laughing.
After spending some time together, Li Yang became friends with these experienced technicians.
Although with the help of the system, he has already mastered a lot of theoretical knowledge about shipbuilding.
But no matter how rich the theoretical knowledge is, it can only be tested in practice!
and so……
These technicians, who had participated in national-level defense projects, provided him with a lot of valuable practical experience.
And the same.
Li Yang's outstanding talent in shipbuilding, coupled with some high-tech technologies of this coast guard ship.
We also shared a lot of new knowledge and technologies with technicians from the 701 Institute and other research institutes.
Both sides achieve mutual success and learn from each other.
Tang Xinghai saw Li Yang coming over and asked with a familiar smile on his face.
"Engineer Li, are you still going to explain the technology and knowledge related to microwave photon radar today?"
This month's time.
They didn't do much, they were all learning about microwave photon radar and conducting preliminary research and production processes.
Not only did they not know much about this high-tech and cutting-edge new gadget, they were also very unfamiliar with it.
Naturally.
The progress of microwave photon radar is not rapid.
Therefore, before building each new module, Li Yang would explain the relevant knowledge to them carefully and comprehensively.
Li Yang walked to the big screen.
"That's right, today we will explain the relevant knowledge of microwave photon radar!"
He picked up the carbon pen, and a co-worker had already pulled the blackboard next to him.
Li Yang smiled and thanked him.
"What I'm going to talk about today is the microwave photon coherent radar system in microwave photon radar..."
He opened the PPT, then wrote this line on the blackboard with a carbon pen, starting today's teaching mode.
A group of researchers, including Tang Xinghai, immediately put away the smiles on their faces.
With a serious look on his face, he waited for Li Yang to start speaking.
Li Yang pointed at the big screen and said.
"Everyone, please look, this is the circuit diagram of the microwave photon coherent radar system..."
"The mode-locked laser is supplied to the receiving module and the transmitting module. In the transmitting module, the mode-locked laser is divided into two paths. One path is modulated by the 100 MHz carrier pulse generated by DDS, and then the beat frequency is externally inserted through the photodiode to generate a 909 GHz radar pulse, which is sent to the RF front end."
"at the same time……"
He switched the PPT to the next page and replaced the static circuit diagram with an animated demonstration diagram.
"The 100 MHz carrier reference signal generated by the DDS on the other path is modulated, and then the heterodyne beat frequency is passed through the photodiode to generate a 9.9 GHz carrier reference signal, which is sent to the receiving module."
"The echo signal in the receiving module is directly sampled by a Mach-Zehnder modulator and a mode-locked laser. After sampling, it becomes a 100 MHz optical signal..."
"As can be seen from its system working principle diagram, the photonics RF receiver has a digital backend operating in the extremely high frequency band, and the system is reliable and reconfigurable, making the noise and loss of the electronic analog-to-digital sampling part small."
"At the same time, the signals generated by the photonic RF transceiver can be amplitude- and phase-modulated to any waveform, effectively supporting pulse compression technology..."
The lecture lasted for more than half an hour before Li Yang finally finished all the content he wanted to talk about today.
The reason why he spends some time every day teaching this knowledge is mainly to let everyone have an understanding and become more familiar with some of the principles in it to facilitate subsequent construction.
Of course……
After all, the microwave photon radar system is one of the most advanced radar systems, and Li Yang did not mention some of its core technologies.
Personally, these technologies are the absolute core of business.
For the country, this is a national defense secret.
Even if the people present are from national research institutions and even if they have signed confidentiality agreements.
But who can guarantee that they can stick to their original intentions under the absolute temptation of interests?
It's always better to be careful...
After a very enjoyable and fruitful lecture, many people present had a lot of useful knowledge in their notebooks.
Tang Xinghai put away his notebook and expressed his gratitude from the bottom of his heart.
"During this period, Mr. Li has been teaching us tirelessly, which has enabled us to gain a lot and learn a lot of new knowledge and techniques. Thank you, Mr. Li!"
Others also echoed and expressed their gratitude to Li Yang.
Li Yang waved his hand indifferently.
"Your words are very important. We are learning from each other and making progress together."
"I have also learned a lot from you that is not in the textbooks..."
After a few simple polite words, Li Yang asked everyone to start work and continue construction.
time does not wait.
We are all working towards the same goal, so we naturally cannot waste time on these unimportant things.
After leading everyone to start today's work, Li Yang saw that he did not need to worry about the workshop, so he left and came to the production workshop of the sea fishing boat.
Huang Fugui hurried over.
"Mr. Li, why are you here?"
Although the production workshop of the sea fishing boat is right next to the coast guard ship, the workshops on both sides are separated by thick concrete and steel walls.
Not to mention that it is impossible to go straight over, even wanting to clearly hear the sounds from next door is difficult to do.
To get from here to there, you have to go through a specific security gate and undergo a full body check.
The most important thing is to get approval!
Li Yang asked with a warm smile.
"Is everything going smoothly with the construction of the sea fishing boat?"
Huang Fugui nodded.
"all the best!"
"After a week of overtime production, our first batch of sea fishing boats will be ready to roll off the production line in about half a month!"
Sea fishing boats are not like coast guard boats. In terms of specifications, they are hundreds of times smaller than coast guard boats.
In addition, in order to bring the sea fishing boat to the market more quickly, Li Yang also specifically recruited a group of employees.
That’s why Huang Fugui and his team’s production efficiency is so high.
Li Yang nodded slightly, then walked into the production workshop of the sea fishing boat.
Like the workshop on the coast guard ship, it is also a busy scene here.
Everyone performs his or her duties and works hard in his or her respective position.
Seeing Li Yang coming in, they greeted him one after another. Li Yang smiled back at them one by one and signaled them not to bother himself.
After following Huang Fugui to the rear base, Li Yang saw it.
In the huge factory area, dozens of half-finished sea fishing boats are piled up.
These are the first batch that Huang Fugui just mentioned.
Li Yang walked forward to take a look, gave it a quick inspection, and nodded involuntarily, a look of satisfaction on his face.
"good……"
Hear the words.
Huang Fugui's face lit up with joy.
Li Yang continued.
“Since the first batch is about to roll off the production line, it’s time to start promoting this sea fishing boat.”
“I remember that many fans and friends asked me to build a boat?”
"Now the ship they wanted has arrived..."