Qi Yanliang came out of He Yushen's office building. It was a long walk along the path.
Near a laboratory building, I saw Chu Qian.
Qi Yanliang said: "We met here."
Chu Qian said: "Hello, I work here. Come and sit."
Qi Yanliang said: "There is something I want to tell you. I don't know about the strange rocks in the mining city. Have you heard about it?"
Chu Qian said: "I heard about it, but we have never seen this element. It is also a very precise structure inside, very tiny, and forms a system by itself. As for why such a system can be made, I feel that this is something else. A product of civilization.”
Qi Yanliang said: "Do you know Researcher He? We grew up in Shacheng."
Chu Qian said: "I know him."
Qi Yanliang said: "I have met him, and he mentioned the mapped network to me."
In mathematics, there are commonly used formulas for mapping and transforming different spaces. For example, the Laplace transform is an integral transformation commonly used in engineering mathematics. The Laplace transform is a linear transformation that can convert a function with a real parameter t (t ≥ 0) into a function with a complex parameter s. Laplace transform is widely used in mechanical systems, electrical systems, automatic control systems and other fields.
Z transform can transform time domain signals (i.e., discrete time series) into expressions in the complex frequency domain. Its status in discrete-time signal processing is like the Laplace transform's status in continuous-time signal processing. The Z-transform of discrete-time signals is an important tool for analyzing linear time-invariant discrete-time system problems. It converts the time-domain mathematical model of linear shift (time)-invariant discrete systems, the difference equation, into an algebraic equation in the Z domain, making the discrete system The analysis is also simplified, and system functions can also be used to analyze the time domain characteristics, frequency response and stability of the system.
Chu Qian said: "It uses a mapping network to detect. This is an idea, but the mapping network can also be used to detect other things."
Qi Yanliang said: "What else can it be used to detect?"
Chu Qian said: "The entire Milky Way."
Qi Yanliang said: "This is the Institute of Optics, not the Institute of Astronomy, right? You turned out to be doing spectroscopy of ground objects, right?"
Chu Qian said: "It's quite complicated. We use the spectrum of ground objects for earth observation and the mapping network for the sky. We can also use the Zeeman effect to detect celestial bodies. This is just one of the applications of the mapping network. I don't know much about astronomy. Not much. The basic principle is this. Information from the entire galaxy may be projected to a certain area, and then we establish contact with this area. This area is called a relay pool. It is like a signal base station. That is, with other places in the galaxy To communicate, of course we don’t dare to communicate yet, it’s just for testing and observation.”
A base station is a form of radio station, which refers to a radio transceiver station that transmits information with mobile phone terminals through a communication switching center in a certain radio coverage area. To put it simply, the base station is used to ensure that users’ mobile phones can maintain signals at any time and anywhere in various locations, ensuring calls, sending and receiving information and other needs. The base station sends and receives messages through antennas.
The process of the forward signal is: control signaling, voice call or data service information on the core network side is sent to the base station through the transmission network. The signal is processed by baseband and radio frequency at the base station side, and then sent to the antenna through the radio frequency feeder for transmission. The terminal receives the radio waves emitted by the antenna through the wireless channel, and then demodulates its own signal.
Communication between distant stars is difficult for several reasons: The propagation energy of electromagnetic waves decays with distance. Although the universe is a vacuum, there are substances that scatter and absorb electromagnetic waves. Background radiation causes noise interference. Therefore, radio signals will become garbled or significantly fade after being transmitted over long distances.
One possibility for interstellar communication is gravitational waves, where changes in the curvature of space-time propagate outward at the speed of light in the form of traveling waves. Gravitational wave communication has one of the most natural advantages, which is super penetration and almost no loss. Theoretically, gravitational waves can penetrate all matter without losing any energy, so interstellar communication can be achieved through them. But in fact, black holes and neutron stars can end its spread.
What is now called mapping network communication uses a transit pool. Each transit pool can contain one or more zones depending on the mapped network it is connected to. The area covered can reach thousands of light-years. Controlled by the transit pool controller, the coverage area is usually reduced to avoid interference with adjacent transit pools. The relay module mainly completes functions such as signal processing and resource allocation. The transceiver module is mainly responsible for signal reception and signal conversion. It receives signals from other distant galaxies to the transfer pool, and then converts the signals and transmits them to nearby galaxies.
Qi Yanliang said: "Is the transfer pool you are talking about man-made or naturally formed?"
Chu Qian said: "Even if it was made, it was probably made by other civilizations. We can only try to use it now, and we don't know the specific internal structure and production principles."
Qi Yanliang said: "Did you find any new information through the mapping network?"
Chu Qian said: "The information we received is just a bunch of gibberish, and we don't know whether it is useful information or noise. Maybe we need to find some linguists."
"But I found that some data may have been modified."
Qi Yanliang said: "How did you find out?"
Chu Qian said: "Use the prediction system. The signal we received earlier was continuous, but interrupted for a period of time. We used the prediction system to predict the received code, but it was different from the actual received code. It is equivalent to having a One section was blank. I thought it might have been discovered by other civilizations or by locals. So I cut off part of the information."
Qi Yanliang walked around the laboratory. Working with Chu Qian were young people such as He Xin, Xiang Yu, and Shun Pin.
He Xin is serious about work, relatively strong physically, and has hobbies of climbing and running. Xiangyu is smart and flexible. Strong instantaneous creativity.
Chu Qian said: "This is like a password war. We want to obtain other people's information without exposing our own location and preventing our own information from being obtained."
Qi Yanliang said: "You have researched a lot."
Chu Qian said: "The spectrum of ground objects is the first thing to be studied. Then comes the mapping network. One is to detect the earth, and the other is to detect space. There are also other things, such as photon columns and light speed adjustment media."
Qi Yanliang said: "They are all high-tech. Very high-end."
Chu Qian said, "What's the purpose of your visit this time?"
Qi Yanliang said: "I came to ask He Yushen about making some sensors to detect the condition of the river."
