vstars Chapter 309 This is called the first shipbuilding? !
Chapter 309 This is called the first shipbuilding? !
Fishing vessel.
Military shipbuilding plant.
Li Yang officially announced.
"I hereby announce that from today on, we will officially begin the construction of the first coast guard ship of Yuwei Shipyard!"
The words fell.
There was prolonged applause at the scene.
Yu Zhanpeng, who also attended the groundbreaking ceremony, clapped the most enthusiastically, his palms almost turned red.
Construction has finally started!
If you keep thinking about it, there will be a response...
After Li Yang announced the opening ceremony, he waited for the applause to die down, then he spoke with a very serious expression.
"Before we start construction, we need you to sign an agreement!"
Done.
Zhao Hui walked in with dozens of Special Security Agency law enforcement officers, carrying several large bags.
Seeing them wearing the special security uniforms, many technicians looked puzzled.
Li Yang explained.
"From the perspective of their purpose, coast guard ships should be classified as military vessels."
"So, the confidentiality agreement still needs to be signed..."
Everyone understood after hearing this.
Without any hesitation, he signed a confidential document under the guidance of the Special Security Agency.
After everything is ready.
Only then did Li Yang officially enter the construction workshop with a large number of scientific researchers.
"Everyone, for a long time to come, we will be working together to build coast guard ships."
"I hope everyone can work together, shine in their respective positions, and make a contribution to the early completion of the coast guard ship!"
Hearing this, Tang Xinghai replied with a smile.
"Don't worry, Engineer Li. We are here to help you build the coast guard ship with all our strength."
"Now that everything is ready, can I see your design for the Coast Guard ship?"
have to say.
Li Yang did a really good job on the confidentiality agreement.
From the time they arrived at the Yuwei ship until now, they have not even seen the shadow of the coast guard ship design.
Li Yang smiled slightly.
"nature!"
He took the tablet computer from Zhao Hui, inserted the encrypted USB drive into it, and then projected the screen on the computer onto the large white screen in front of him.
"Please look, this is part of the design of the Coast Guard ship..."
The design of the coast guard ship is very large and contains a lot of content, so it is naturally impossible to release it all at once.
What he showed now were the major modules and systems that needed to be conquered first.
The noisy construction workshop suddenly became quiet, and everyone's eyes turned to the big screen.
The same is true for Tang Xinghai.
Even though he was an engineer and technician at the 701 Institute, he was also Yu Qing's student.
But now it is a new construction task, which also needs to be taken seriously and every detail of the design plan needs to be carefully understood.
Provide strong support and assistance for the subsequent construction project.
only……
When he first saw the initial content of the design plan, he didn't think much of it.
This plan is no different from the common design of Longguo Coast Guard ships.
But as he read on, he discovered that something was wrong with some modules of this design plan.
"Hiss... a completely new radar system design?!"
Tang Xinghai's eyes widened and he couldn't help but exclaim.
The other technicians and researchers obviously noticed this as well, and each had a different expression on their face.
But without exception, everyone was shocked.
For a while.
The workshop became noisy again, with exclamations coming one after another.
"Microwave photon radar system? Isn't this thing still in the laboratory research and development test stage?"
"Fuck you! Are you playing such a big game?"
"It seems that the Eagles haven't developed this advanced radar yet? Engineer Li actually used it directly on the coast guard ship?"
"Hiss... Looking at the various details on the plan, it seems to be feasible? Has Engineer Li really mastered this technology?"
"..."
Li Yang was not surprised at all by everyone's reactions and expressions.
after all.
The microwave photon radar system is a brand-new and cutting-edge radar system module for them and even for cutting-edge laboratories and scientific research institutions in other countries.
They didn't jump in surprise, which means they have seen the world and have very good manners.
At this time, Tang Xinghai, after experiencing the initial surprise, was now completely immersed in the analysis and explanation of microwave photon radar.
His eyes were shining, his eyeballs were flickering, and his breathing was rapid.
"Two light waves with the same polarization state are simultaneously incident on a high-frequency light detector. Due to the square-law detection, the two light signals will beat each other and generate a radio frequency signal with a frequency equal to the difference between the two light waves."
“Modulate the baseband signal or intermediate frequency signal onto one of the optical signals.”
"Only when the two beams have high coherence can they produce low phase noise and highly stable signals."
"It is possible to use optical heterodyning to generate microwave and millimeter wave optics?"
For the first time, Tang Xinghai's many years of theoretical knowledge suffered a major impact!
at the same time.
His strong desire for knowledge made him involuntarily look at the next technology, and he completely forgot that he was a doctoral student and a favorite disciple of Master Yu.
He asked Li Yang excitedly and urgently.
"Your design proposal did not elaborate on how to solve the speed bottleneck problem in traditional electronics?"
“And, what are the advantages of photon filters compared to traditional microwave filters?”
"Could you please explain this to me, Mr. Li?"
Li Yang greeted with a smile.
"Of course!"
"Resolving the confusion now will also facilitate the subsequent construction work."
He walked forward to the front of the big curtain, pulled over a blackboard next to it, and picked up a carbon pen.
He pointed to the component disassembly diagram on the big screen, wrote on the blackboard, and explained at the same time.
"To solve the rate bottleneck problem of traditional electronics, microwave and millimeter-wave optical domain processing can be used."
"Microwave and millimeter-wave optical domain processing has the absolute advantages of low loss, high bandwidth, no electromagnetic interference, and high sampling frequency. It is perfect for use in microwave photon radar."
After a pause, he turned to answer another question from Tang Xinghai.
"As for the advantages of photon filters..."
"Here we need to first introduce the principle of microwave photon filters:"
"Everyone should know that the transfer function of a digital filter can be expressed as h(z)=\sum_{k=0}^{m}{b{{z}^{-k}}}/1-\sum_{k=0}^{n}{a{{z}^{-k}}}=y(z)/x(z)."
"Using a non-recursive structure, i.e., = 0 (k = 1,2,3, 0, , ...), it is transformed into h (z) = \sum_{k = }^{m}{b{{z}^{-k}}} = y (z) / x (z)."
"Similarly, using high school knowledge, its linear difference equation is y(n)=\sum_{k=0}^{m}{{{b}_{k}}}x(nk)."
"Therefore, it can be seen that the microwave photon filter is composed of several basic operating units, namely sampling taps, multipliers, adders and unit delay units!"
"This also makes photon filters have advantages over traditional microwave filters, such as reconfigurability, tunability, and resistance to electromagnetic interference!"
Li Yang's explanation made Tang Xinghai suddenly realize.
but.
The other technicians and researchers who were listening attentively looked a little confused.
But the look towards Li Yang changed...
Is this really a newcomer with no shipbuilding experience?
This is called the first shipbuilding?!