Interstellar laser communication microwave coding method

Abstract

The invention relates to the technical field of laser communication microwave coding, in particular to an interstellar laser communication microwave coding method, which comprises the following steps: acquiring a microwave signal to be transmitted, converting the microwave signal into a digital signal, arranging the acquired digital signal according to a magic square construction rule, generating a magic square code, loading the magic square code onto a laser beam, and transmitting the magic square code to the laser beam. And transmitting the laser beam loaded with the microwave signal to a destination. A mathematical principle of a magic square is utilized, microwave signals to be transmitted are converted into digits, then the digits are arranged in the magic square according to a certain rule, the digits are loaded to light waves through laser beams, transmission of the microwave signals is achieved, the signals are effectively coded and transmitted, the anti-interference capacity of the signals is improved, the microwave signals are loaded to the laser beams, and the transmission efficiency is improved. According to the invention, high-speed and high-bandwidth transmission can be realized, different coding modes can be realized through different magic square construction methods, and the flexibility is very high.

Description

Technical Field

[0001] This invention relates to the field of microwave coding technology for laser communication, and more particularly to a microwave coding method for interplanetary laser communication. Background Technology

[0002] The main principle of microwave encoding in laser communication is to load the microwave signal to be transmitted onto a laser beam, and then use appropriate demodulation techniques at the receiving end to extract the microwave signal loaded onto the laser beam and perform decoding to recover the original microwave signal. In laser communication systems, microwave encoding typically employs various modulation methods, such as amplitude modulation, phase modulation, and frequency modulation. In long-distance interplanetary communication, amplitude modulation usually exhibits better performance.

[0003] Because microwave channels suffer from multipath effects, fading, and interference that affect signal transmission performance, microwave coding currently faces challenges such as uncertainty in channel transmission characteristics, poor anti-interference capabilities, and incompatibility of coding schemes. Summary of the Invention

[0004] The purpose of this invention is to provide a microwave coding method for interplanetary laser communication, which solves the problems of uncertainty in channel transmission characteristics, poor anti-interference, and incompatibility of coding schemes in existing microwave coding methods.

[0005] To achieve the above objectives, the present invention provides a microwave coding method for interplanetary laser communication, comprising the following steps:

[0006] The microwave signal to be transmitted is acquired and converted into a digital signal;

[0007] The collected digital signals are arranged according to the construction rules of magic squares to generate magic square codes;

[0008] Load the magic square code onto the laser beam;

[0009] The laser beam loaded with microwave signals is transmitted to the destination.

[0010] The step of acquiring the microwave signal to be transmitted and converting it into a digital signal also includes:

[0011] The microwave signal to be transmitted is acquired, and the microwave signal is converted into an electrical signal through a microwave receiver;

[0012] The acquired electrical signals are filtered and amplified;

[0013] Convert the amplified and filtered analog signal into a digital signal.

[0014] The step of filtering and amplifying the acquired electrical signal further includes:

[0015] During the filtering and amplification process, the signal quality is monitored in real time. If the signal quality is poor, the parameters of the filter and amplifier are readjusted.

[0016] The process includes arranging the collected digital signals according to the construction rules of a magic square to generate a magic square code. The steps also include:

[0017] Determine the order of the magic square;

[0018] Create a matrix of the same order to store the digital signal to be transmitted;

[0019] According to the construction rules of magic squares, the digital signals to be transmitted are filled into the matrix according to certain rules;

[0020] Based on the boundary conditions of the magic square, the elements at the edge of the matrix are specially processed;

[0021] The filled matrix is ​​scanned in row-major or column-major order to generate a one-dimensional digital signal, i.e., magic square encoding.

[0022] Verify whether the generated magic square encoding conforms to the expected construction rules and transmission requirements.

[0023] The step of determining the order of the magic square further includes:

[0024] The magic squares include third-order, fourth-order, and fifth-order magic squares.

[0025] The step of loading the magic square code onto the laser beam further includes:

[0026] The magic square code is input into the modulator as the modulation signal;

[0027] Under the control of the modulator, certain parameters of the laser beam emitted by the laser change with the magic square code, thereby loading the magic square code onto the laser beam.

[0028] This invention discloses a microwave encoding method for interstellar laser communication. The method involves acquiring the microwave signal to be transmitted and converting it into a digital signal. The acquired digital signal is then arranged according to the construction rules of a magic square to generate a magic square code. This magic square code is loaded onto a laser beam, and the laser beam carrying the microwave signal is transmitted to the destination. Utilizing the mathematical principles of magic squares, the microwave signal to be transmitted is converted into digital data, which is then arranged in a magic square according to certain rules. Next, these digital data are loaded onto a light wave by a laser beam to achieve microwave signal transmission. Due to the mathematical properties of magic squares, they can effectively encode and transmit signals, improving the signal's anti-interference capability. By loading the microwave signal onto a laser beam, high-speed, high-bandwidth transmission can be achieved. Furthermore, different encoding methods can be implemented through different magic square construction methods, providing high flexibility. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0030] Figure 1 This is a flowchart illustrating the steps of the interplanetary laser communication microwave coding method of the present invention.

[0031] Figure 2 This invention describes the steps of arranging the collected digital signals according to the construction rules of a magic square to generate a magic square code and determining the order of the magic square.

[0032] Figure 3 This is a diagram illustrating the steps of loading magic square codes onto a laser beam according to the present invention. Detailed Implementation

[0033] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0034] Please see Figures 1 to 3 ,in, Figure 1 This is a flowchart illustrating the steps of the interplanetary laser communication microwave coding method of the present invention. Figure 2 This invention describes the steps of arranging the collected digital signals according to the construction rules of a magic square to generate a magic square code and determining the order of the magic square. Figure 3 This is a step diagram illustrating the process of loading magic square coding onto a laser beam according to the present invention. The present invention provides a microwave coding method for interplanetary laser communication, comprising the following steps:

[0035] S100: Acquires the microwave signal to be transmitted and converts it into a digital signal;

[0036] S101: Acquires the microwave signal to be transmitted and converts the microwave signal into an electrical signal through a microwave receiver;

[0037] S102: Filter and amplify the acquired electrical signal;

[0038] S103: Converts the amplified and filtered analog signal into a digital signal.

[0039] Specifically, the process involves acquiring the microwave signal to be transmitted, converting it into an electrical signal using a microwave receiver, filtering and amplifying the acquired electrical signal to eliminate noise and interference and improve the signal-to-noise ratio. Filtering aims to selectively allow signals in certain frequency ranges to pass while blocking signals in other frequency ranges, thus eliminating noise and other interference components. Commonly used filters include low-pass filters, high-pass filters, band-pass filters, and band-stop filters. Filters are typically constructed from passive or active RC circuits, operational amplifiers, digital signal processors (DSPs), or specially designed electronic circuits. Amplification enhances the weak electrical signal to the required amplitude level. During amplification, an appropriate amplification factor needs to be selected to balance the signal amplitude and noise level. Commonly used amplifiers include operational amplifiers (Op-Amp) and vacuum tube amplifiers. The amplified and filtered analog signal is then converted into a digital signal using an analog-to-digital converter (ADC).

[0040] S200: Arrange the acquired digital signals according to the construction rules of the magic square to generate the magic square code; determine the order of the magic square;

[0041] S201: Create a matrix of the same order to store the digital signal to be transmitted;

[0042] S202: According to the construction rules of magic squares, fill the digital signal to be transmitted into the matrix according to a certain rule;

[0043] S203: Based on the boundary conditions of the magic square, perform special processing on the elements at the edge of the matrix;

[0044] S204: Scan the filled matrix in row-major or column-major order to generate a one-dimensional digital signal, i.e., magic square encoding;

[0045] S205: Verify whether the generated magic square encoding conforms to the expected construction rules and transmission requirements.

[0046] Specifically, firstly, the order of the magic square is determined based on application requirements and transmission capacity. The order determines the number of rows and columns of the magic square, and also the encoded length of the signal to be transmitted. Magic squares include 3x3, 4x4, and 5x5 magic squares. A 3x3 magic square is constructed by arranging nine numbers such that the sum of the numbers in each row, each column, and both diagonals equals 15. There are several ways to construct a 3x3 magic square; one simple method is the "nine-number permutation method." A 4x4 magic square is constructed by arranging nine numbers in a row, column, and diagonal such that the sum of the numbers in each row, column, and diagonal equals 15. A magic square is constructed by filling sixteen numbers or symbols into a grid of five rows and five columns, such that the sum of the numbers in each row, each column, and both diagonals is equal. There are several methods for constructing a fourth-order magic square, one simple method being the "four-four diagram method." A fifth-order magic square is constructed by filling twenty-five numbers or symbols into a five-row, five-column grid, such that the sum of the numbers in each row, each column, and both diagonals is equal. There are also several methods for constructing a fifth-order magic square, one simple method being the "five-digit permutation method." A matrix of the same order as the magic square is created to store... Place the digital signal or symbol sequence to be transmitted into the matrix. All elements of the initial matrix can be set to zero or initialized according to specific requirements. Based on the magic square's construction rules, fill the matrix with the digital signal or symbol sequence according to a certain pattern. Different orders and construction methods will have different filling rules. For example, odd-order magic squares can use the "central symmetry method" or "serpentine filling method," while even-order magic squares can use the "four-corner symmetry method," etc. Based on the magic square's boundary conditions, perform special processing on the elements at the matrix edges. For example, specific values ​​or symbols can be used to represent edge elements, or they can be filled according to a specific pattern. Scan the filled matrix in row-major or column-major order to generate a one-dimensional digital signal or symbol sequence. This sequence is the generated magic square code, which can be used for subsequent loading and transmission. Finally, verify whether the generated magic square code meets the expected construction rules and transmission requirements. If errors or problems exist, return to the previous step for adjustments and regenerate the magic square code.

[0047] S300: Loads magic square codes onto the laser beam;

[0048] S301: Input the magic square code into the modulator as the modulation signal;

[0049] S302: Under the control of the modulator, certain parameters of the laser beam emitted by the laser change with the magic square code, thereby loading the magic square code onto the laser beam.

[0050] Specifically, depending on the actual situation, a suitable modulation method is selected to load the magic square code onto the laser beam. Commonly used modulation methods include intensity modulation, phase modulation, frequency modulation, and polarization modulation. The generated magic square code is input into the modulator as a modulation signal. The modulator will adjust certain parameters of the laser beam accordingly based on the changes in the input signal. Under the control of the modulator, certain parameters of the laser beam emitted by the laser (such as intensity, phase, frequency, or polarization state) will change with the changes in the magic square code. This step realizes the loading of the magic square code onto the laser beam.

[0051] S400: Transmits a laser beam loaded with microwave signals to its destination.

[0052] Specifically, the modulated laser beam is transmitted to the destination via optical fiber or other transmission media. During transmission, the stability and quality of the laser beam must be maintained to reduce signal attenuation and distortion. At the receiving end, a photodetector is used to detect the received laser beam and convert it into an electrical signal. Then, the original magic square code is extracted from the electrical signal using appropriate demodulation techniques. During transmission, various factors may affect the signal quality, leading to a decline in signal quality. Therefore, it is necessary to monitor and correct the quality of the transmitted signal to ensure its accuracy and reliability.

[0053] Utilizing the mathematical principles of magic squares, the microwave signal to be transmitted is converted into digital data, which is then arranged in a magic square according to certain rules. Next, these digital data are loaded onto the light wave using a laser beam to achieve microwave signal transmission. Due to the mathematical properties of magic squares, they can effectively encode and transmit signals, improving the signal's anti-interference capability. By loading the microwave signal onto the laser beam, high-speed, high-bandwidth transmission can be achieved. Furthermore, different encoding methods can be implemented through different magic square construction methods, demonstrating high flexibility.

[0054] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A method for microwave encoding of interstellar laser communication, characterized by, The method comprises the following steps: Collecting the microwave signal to be transmitted and converting it into a digital signal; Arranging the collected digital signal according to the construction rules of the magic square to generate a magic square code; Loading the magic square code onto the laser beam; Transmitting the laser beam loaded with the microwave signal to the destination.

2. The method of claim 1, wherein the laser communication with a star is encoded with a microwave. The step of collecting the microwave signal to be transmitted and converting it into a digital signal further comprises: Collecting the microwave signal to be transmitted and converting it into an electrical signal through a microwave receiver; Filtering and amplifying the collected electrical signal; Converting the amplified and filtered analog signal into a digital signal.

3. The method of claim 2, wherein the laser communication with the star is microwave encoded. The step of filtering and amplifying the collected electrical signal further comprises: During the filtering and amplifying process, the signal quality is monitored in real time, and if the signal quality is poor, the parameters of the filter and amplifier are adjusted again.

4. The method of claim 2, wherein the laser communication with the star is microwave encoded. Arranging the collected digital signal according to the construction rules of the magic square to generate a magic square code, the step further comprises: Determining the order of the magic square; Creating a matrix with the same order as the order for storing the digital signal to be transmitted; According to the construction rules of the magic square, fill the digital signal to be transmitted into the matrix according to a certain rule; According to the boundary conditions of the magic square, special processing is performed on the elements at the edge of the matrix; Scanning the filled matrix in row-major or column-major order to generate a one-dimensional digital signal, i.e. a magic square code; Verify whether the generated magic square code meets the expected construction rules and transmission requirements.

5. The method of claim 4, wherein the laser communication with the star is encoded with microwaves. Determining the order of the magic square, the step further comprises: The order of the magic square includes three-order magic square, four-order magic square and five-order magic square.

6. The method of claim 5, wherein the laser communication with the star is encoded with microwaves. Loading the magic square code onto the laser beam, the step further comprises: Inputting the magic square code into the modulator as a modulation signal; Under the control of the modulator, some parameters of the laser beam emitted by the laser change with the change of the magic square code, realizing the loading of the magic square code onto the laser beam.

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