Chapter 118 Learn about the humanoid radio
study.
It is a distressing thing for many people.
It is a very common phenomenon to encounter difficulties in the learning process, which may be due to a variety of factors, including knowledge difficulty, learning methods, psychological state, environmental influences, etc.
Everyone knows to make progress.
But not everyone can accept the pain of learning for the sake of progress.
The fundamental pain of learning lies in the poor input-output ratio.
When learning new knowledge or skills, we often need to understand and master complex concepts, theories, formulas, languages, etc. These contents may be beyond our current cognitive scope and require a lot of energy to think, figure out, and practice repeatedly.
You may not gain much in the end.
Even Shiraishi, who calls himself a genius and has mastered many technologies including information, cultural relic restoration, art forgery, sculpture, painting, lock picking, and multiple languages, sometimes feels troubled by learning.
But now in the process of teaching Chen Yun.
Shiraishi's worldview collapsed slightly.
Chen Yun, who rarely acted in front of him, showed his strong learning ability.
This gave Shiraishi the illusion that he was actually very good at teaching others.
However, Shiraishi reacted quickly.
It is Chen Yun's strong learning ability, not his strong teaching ability.
Every word Shiraishi said was absolutely unforgettable.
Every knowledge point Shiraishi explains can be understood without having to explain it a second time.
There is no need for Baishi to explain similar principles. Chen Yun himself drew inferences from one example.
Such students can definitely become any teacher's trump card and become a star that the teacher can remember throughout his teaching career.
Teaching continued until five or six in the afternoon.
Shiraishi felt that his rich understanding and knowledge reserve related to signal modulation and demodulation had been emptied by the man in front of him who was thirsty for knowledge.
There really isn't a drop left.
It also taught me a lot about the relevant understanding of baseband signals.
The speed of absorbing knowledge is so fast that I never need to say it a second time.
So much so that Shiraishi felt that he was not a teacher, but a robot who only needed to hold the book and read from the book.
The idea of using some small equipment to entertain and educate people also came to nothing because it was completely unnecessary.
There was no extra tutorial process for what Chen Yun didn't understand.
The only role Baishi can play is to rely on his familiarity and understanding of this knowledge to allocate knowledge in different directions to Chen Yun according to certain stages, allowing Chen Yun to study more scientifically and systematically instead of aimlessly. , no direction, patchwork learning with a hammer in the east and a stick in the west.
And during this afternoon of concentrated study.
In addition to learning signal modulation and demodulation, Chen Yun also learned many common conversion rules for converting pictures, sounds, and text information into baseband signals.
After all, after the passing radio waves were demodulated by him, they only turned into baseband signals, not directly into images, sounds, or text.
He also had to learn how sound wave vibrations, bit sequences in data signals, and pixel value changes in image signals are reflected in baseband signals.
Finally, the pictures, sounds, and text information contained in the numerous radio waves passing through the world can be directly interpreted.
Around 5:30 in the afternoon.
Chen Yun saw that Bai Shi couldn't bear it anymore, so he simply stopped studying for the time being.
Watching Shiraishi teach him, he was in a daze.
Chen Yun patted Bai Shi's shoulder apologetically and said, "Elbow, I will cook myself and make you something delicious."
With that said, Chen Yun hooked Bai Shi's shoulder and walked towards his home.
He asked Shiraishi to sit on the sofa and tease Shirogane.
He rolled up his sleeves and came to the kitchen.
He has quite a lot of experience in making snakes these days, so he just happened to make some tonic snake soup for Shiraishi with some Chinese medicinal materials he bought when buying snakes in the morning.
························
Shiraishi played here for a while after eating snake soup, and went home almost two hours ago .
Afterwards, Chen Yun prepared the snake soup for the next morning according to his short-term plan, and then read a novel for a while.
It was almost nine o'clock in the evening.
Chen Yun started today’s daily training on Transparent World 3.5.
His Transparent World 3.5 contains many aspects of his own inhuman abilities, so he exercises vision, hearing, smell, and mental power.
Among them, the exercise of mental power mainly involves three aspects: sensing biological emotions, psychokinesis, and electromagnetic wave perception.
After completing most of the special training, Chen Yun paused when he was preparing to train on electromagnetic wave perception.
Feel the numerous and chaotic electromagnetic waves circulating around you.
Chen Yun tried to combine a series of knowledge he learned this afternoon: signal modulation and demodulation, and the information carried in the baseband signal.
Although he has not finished learning these two aspects, after an afternoon of study, he is now relatively proficient.
In a trance.
The regular amplitude, frequency, and phase of the surrounding electromagnetic wave signals took on meaning in his eyes. But not all can be understood.
There are too many rules for signal modulation, and it is difficult to accurately match every electromagnetic wave signal with the correct signal modulation method.
Not to mention the difficult demodulation processes involving more complex mathematical operations and signal processing techniques, such as carrier synchronization, symbol timing recovery, equalization, channel estimation, soft decision decoding, etc.
Many modern signal demodulation methods involve advanced mathematical operations, complex filtering algorithms (such as Kalman filtering, adaptive filtering, etc.), channel estimation, constellation decoding, error correction coding, etc. These algorithms often require iterative calculations, matrix operations, probability theory, mathematical statistics, etc.
Moreover, with Chen Yun's current ability to perceive electromagnetic waves, his perception of characteristics such as amplitude, frequency, and phase is not yet so clear.
Everything still requires deeper exercise.
Therefore, at present, only a negligible part of simple electromagnetic waves has the possibility of deciphering in his eyes.
Thinking.
Chen Yun used the knowledge he had learned to try to demodulate these modulated signals into baseband signals.
It's difficult.
If only the brain is used as the central processor, signal demodulation is a big project.
Even for the most basic AM (amplitude modulation) or FM (frequency modulation) signal, the demodulation process is relatively straightforward, but it is not that simple.
It took more than twenty minutes.
Chen Yuncai deciphered a certain signal into a baseband signal, and then tried to decipher it into images, text, and sounds based on the common rules of how baseband signals carry information.
This took another ten minutes.
After deciphering this signal, Chen Yun's eyes lit up.
A familiar voice rang in my ears at this moment:
[This is FM101.7, Shudi Traffic and Guangdong reminds you: there are thousands of roads, safety comes first! 】
[Next, I present to you Zhou Binglun’s classic song "Daoxiang"]
[If you have too many complaints about this world. If you fall, you won’t dare to move forward. Why? People have to be so fragile and corrupt...]
After being decoded by the brain, a certain electromagnetic wave turns into familiar music echoing in the ears.
Because I am not proficient in deciphering, it still sounds a bit laggy, or quite laggy.
Such a feeling.
It has never happened before.
After the electromagnetic waves are deciphered, a clear imaginary sound is formed and played in the mind.
But in fact, no one was playing the song Daoxiang around.
This strange feeling made Chen Yun feel particularly novel and interesting.
If you say there is any difference between this and imagining Daoxiang directly in your mind.
In fact, there are some.
There is an electromagnetic wave signal that actually carries this song. After deciphering it in my mind, the imaginary sound is clearer than imagining it out of thin air.
The auditory function that is so clear that it can penetrate the world is trying its best to find the source of the sound. However, the auditory function that is so powerful is always at odds with the brain at this moment.
Brain: I really heard it.
Hearing:? ? ?
After thinking about it for a while, Chen Yun came back to his senses with a smile and began to seriously think about the origin of the transformed electromagnetic waves.
But there is no need to think deeply.
This is obviously a...traffic announcement?
Currently, it seems that I can only decipher the simple electromagnetic waves that this radio can receive through frequency modulation.
This really opens up a new world.
But it seems like...
Transformed into a humanoid radio?
This made Chen Yun couldn't help but smile bitterly.
This is not impossible. After he improves his deciphering proficiency, the electromagnetic waves of these traffic broadcasts can be directly deciphered into the information they carry in seconds.
I will really become a radio.
When the time comes...
At least you can listen to music and news anytime and anywhere.
It's a pity that after Chen Yun sensed electromagnetic waves.
It requires operations to analyze amplitude, frequency, and phase, operations to demodulate signals, and operations to convert baseband signals into images, text, and sounds.
All three steps take time.
This made Chen Yun extremely stuck when listening to music using the electromagnetic waves around him.
I want enough fluidity.
It must take a long time to practice, so that the demodulation of various electromagnetic wave signals and the translation of baseband signals can become instinctive operations. It is best to produce results in one second or even less.
besides.
More learning and training are needed to turn other electromagnetic waves into forms that one can understand and decipher, instead of being limited to radio wave signals that can be received by radios.
(End of chapter)