Satellite-to-ground data demodulation processing output control method, device and equipment
By determining the working mode in satellite laser communication and using the satellite-ground demodulation processing module and incoherent receiving equipment to process signals, the problem of low ground processing efficiency is solved, and efficient signal demodulation, decoding and output is achieved.
Patent Information
- Application Number
- CN202411794252.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2044-12-09
AI Technical Summary
In the prior art, the efficiency of signal demodulation, decoding and data output is low on the ground processing, making it difficult to effectively process high-speed and high-capacity data in satellite laser communication.
By determining the working mode, including the satellite-ground communication mode and the incoherent laser communication service mode, the satellite-ground demodulating processing module is used to coordinate the aiming, capture, tracking and chain building with the laser communication load, and send downlink signal light to the incoherent receiving device through the laser transmission and reception front-end and optical subsystems, completing the signal power detection, filtering and photoelectric conversion, and outputting the electrical baseband signal to the high-speed digital baseband.
Through data processing methods under different communication modes, the efficiency of ground data processing is significantly improved, ensuring efficient demodulation, decoding and output of signals.
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Figure CN119276360B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of laser ground communication technology, and in particular to a satellite-to-ground data demodulation processing output control method, device and equipment. Background Art
[0002] Satellite laser communication technology is a satellite communication technology that can achieve high speed and long distance based on laser energy. It is currently one of the main communication technologies on board, especially in scenarios such as low-bandwidth long-distance communication, underwater communication, and small drone networks. It has many unique advantages: its communication capacity is large, and laser communication can provide extremely high data transmission rates; it has strong confidentiality, because the laser has a short wavelength and strong directionality, it is not easy to be intercepted, which greatly improves the confidentiality of information transmission.
[0003] During the communication process, since the data source is the laser signal on the satellite, the laser signal has an extremely high transmission rate and carries a large amount of data. There are certain difficulties and problems in ground processing of the converted data.
[0004] Therefore, how to improve the efficiency of signal demodulation, decoding and data output in ground processing has become a technical problem that technical personnel in this field need to solve urgently. Summary of the invention
[0005] The present invention provides a satellite-to-ground data demodulation processing output control method, device and equipment, which are used to solve the defect of low efficiency of signal demodulation, decoding and data output completed on the ground in the prior art.
[0006] In a first aspect, the present invention provides a satellite-to-ground data demodulation processing output control method, characterized by comprising:
[0007] Determining a working mode, wherein the working mode includes a satellite-to-ground communication mode and an incoherent laser communication service mode;
[0008] When the working mode is the satellite-to-ground communication mode, after the satellite-to-ground laser link is aimed, captured, tracked and established in coordination with the laser communication payload through the satellite-to-ground demodulation processing module, satellite-to-ground two-way communication is carried out;
[0009] When the working mode is the incoherent laser communication business mode, the downlink signal light is sent to the incoherent receiving device through the laser transceiver front end and the optical subsystem, and the power detection, filtering and photoelectric conversion of the downlink signal light are completed by the incoherent receiving device and the incoherent detection device, and the electrical baseband signal is output to the high-speed digital baseband.
[0010] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the downlink signal light is sent to the incoherent receiving device through the laser transceiver front end and the optical subsystem, comprising:
[0011] The modulation baseband generates a baseband modulation signal, and the modulator performs on-off keying modulation to obtain the signal light;
[0012] The signal light is amplified by the laser transceiver front end and then output to the optical subsystem;
[0013] The optical subsystem is used to achieve high-precision aiming and tracking of the target satellite, and to send uplink signal light, while receiving downlink signal light from the target satellite and sending it to the laser transceiver front end;
[0014] The downlink signal light is amplified and outputted through the laser transceiver front end and outputted to an incoherent receiving device.
[0015] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the power detection, filtering and photoelectric conversion of the downlink signal light are completed by the incoherent receiving device and the incoherent detection device, and the electrical baseband signal is output to the high-speed digital baseband, including:
[0016] After the downlink 1550nm band laser signal is low-noise amplified by the laser transceiver front end, the downlink incoherent modulated laser signal is automatically adjusted for gain and processed by the incoherent receiving device before entering the incoherent detection device.
[0017] The incoherent detection device completes the photoelectric conversion of the downlink incoherent modulated laser signal, and the photoelectrically converted signal enters the high-speed digital baseband.
[0018] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the high-speed digital baseband includes: an acquisition module, a processing module, a clock module, an output module and a monitoring module;
[0019] The acquisition module, the clock module, the output module and the monitoring module are all connected to the processing module.
[0020] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the acquisition module is used for:
[0021] receiving the photoelectrically converted signal and the reference clock generated by the clock unit;
[0022] The acquisition module is configured by programming in a trade-off between the number of channels and the Nyquist bandwidth.
[0023] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the processing module is used for:
[0024] Demodulate and decode signals;
[0025] The demodulation method supports an on-off keying modulation mode, and a single channel code rate is adjustable between 625Mbps, 1.25Gbps, 2.5Gbps and 5Gbps.
[0026] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, the monitoring module is used for:
[0027] Monitor the parameters related to the establishment of industrial computer software and hardware communication and data transmission;
[0028] Based on the data related parameters, real-time error detection and statistical functions are implemented, and the parameters are reported to the monitoring device in real time through the Gigabit network port.
[0029] According to a satellite-to-ground data demodulation processing output control method provided by the present invention, before outputting the electrical baseband signal to the high-speed digital baseband, the method further includes:
[0030] Initialization of the non-coherent receiver is completed;
[0031] After the initialization, carrier synchronization, bit synchronization and frame synchronization are completed for coherent digital and non-coherent digital, and downlink received data is output.
[0032] In a second aspect, the present invention provides a satellite-to-ground data demodulation processing output control device, comprising:
[0033] A determination module, used to determine an operating mode, wherein the operating mode includes a satellite-to-ground communication mode and an incoherent laser communication service mode;
[0034] A satellite-to-ground communication module, used for carrying out satellite-to-ground bidirectional communication after completing aiming, capturing, tracking and establishing a satellite-to-ground laser link in collaboration with the laser communication payload through the satellite-to-ground demodulation processing module when the working mode is the satellite-to-ground communication mode;
[0035] The incoherent laser communication module is used to send downlink signal light to the incoherent receiving device through the laser transceiver front end and the optical subsystem when the working mode is the incoherent laser communication business mode, and complete the power detection, filtering and photoelectric conversion of the downlink signal light through the incoherent receiving device and the incoherent detection device, and output the electrical baseband signal to the high-speed digital baseband.
[0036] In a third aspect, the present invention further provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the satellite-to-earth data demodulation processing and output control method as described above is implemented.
[0037] In a fourth aspect, the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements any of the satellite-to-earth data demodulation processing and output control methods described above.
[0038] In a fifth aspect, the present invention further provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the satellite-to-ground data demodulation processing and output control method as described above is implemented.
[0039] The present invention provides a satellite-to-ground data demodulation processing output control method, device and equipment. The method comprises: determining a working mode, wherein the working mode comprises a satellite-to-ground communication mode and an incoherent laser communication business mode; when the working mode is the satellite-to-ground communication mode, after aiming, capturing, tracking and establishing a satellite-to-ground laser link are completed in coordination with a satellite-to-ground demodulation processing module and a laser communication payload, satellite-to-ground two-way communication is carried out; when the working mode is the incoherent laser communication business mode, downlink signal light is sent to an incoherent receiving device through a laser transceiver front end and an optical subsystem, power detection, filtering and photoelectric conversion of the downlink signal light are completed through the incoherent receiving device and the incoherent detection device, and an electrical baseband signal is output to a high-speed digital baseband. Different data processing methods under different communication modes are used to ensure data processing efficiency. In the incoherent laser communication business mode, demodulation, decoding and output of the signal are completed, thereby effectively improving the ground data processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0040] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0041] Figure 1 is a flow chart of the satellite-to-ground data demodulation processing output control method provided in this embodiment;
[0042] Figure 2 is a circuit diagram of a high-speed digital baseband provided in this embodiment;
[0043] Figure 3 is a schematic diagram of the processing module provided in this embodiment;
[0044] Figure 4 is a schematic diagram of the composition of the monitoring module provided in this embodiment;
[0045] Figure 5 is a schematic diagram of the working principle of the high-speed baseband provided by this embodiment;
[0046] Figure 6 is a structural schematic diagram of the satellite-to-earth data demodulation processing output control device provided in this embodiment;
[0047] Figure 7 It is a schematic diagram of the structure of the electronic device provided in this embodiment. DETAILED DESCRIPTION
[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0049] Figure 1 It is a flowchart of the satellite-to-earth data demodulation processing output control method provided in this embodiment.
[0050] like Figure 1 As shown, the satellite-to-ground data demodulation processing output control method provided by the embodiment of the present invention mainly includes the following steps:
[0051] 101. Determine the working mode, which includes the satellite-to-ground communication mode and the incoherent laser communication business mode.
[0052] In a specific implementation process, different working modes are first determined, and different working modes correspond to different communication methods. The working modes are divided into satellite-to-ground communication mode and incoherent laser communication business mode.
[0053] 102. When the working mode is the satellite-to-ground communication mode, the satellite-to-ground demodulation processing module and the laser communication payload cooperate to complete the aiming, capture, tracking and link establishment of the satellite-to-ground laser link, and then carry out two-way satellite-to-ground communication.
[0054] When the working mode is the satellite-to-ground communication working mode, after the satellite-to-ground demodulation processing module and the laser communication payload cooperate to complete the aiming, capture, tracking and link establishment of the satellite-to-ground laser link, two-way satellite-to-ground communication is carried out, thereby realizing two-way satellite-to-ground communication.
[0055] 103. When the working mode is the incoherent laser communication business mode, the downlink signal light is sent to the incoherent receiving device through the laser transceiver front end and the optical subsystem, and the power detection, filtering and optoelectronic conversion of the downlink signal light are completed by the incoherent receiving device and the incoherent detection device, and the electrical baseband signal is output to the high-speed digital baseband.
[0056] When the working mode is the incoherent laser communication business mode, the modulation baseband generates a baseband modulation signal, and the modulator completes the on-off keying modulation (OOK) to obtain the signal light; the signal light is amplified by the laser transceiver front end and output to the optical subsystem. The optical subsystem completes high-precision aiming and tracking of the target satellite, sends the uplink signal light, and receives the downlink signal light from the target satellite and sends it to the laser transceiver front end; the downlink signal light is amplified and output by the laser transceiver front end and output to the incoherent receiving device. It also includes: completing the initialization of the incoherent receiver; after initialization, completing the carrier synchronization, bit synchronization and frame synchronization of the coherent digital and incoherent digital, and outputting the downlink received data.
[0057] After the laser transceiver front end completes the low-noise amplification of the downlink 1550nm band laser signal, the incoherent receiving device completes the automatic gain adjustment of the downlink incoherent modulated laser signal, and the signal reception and processing, and then enters the incoherent detection device; the incoherent detection device completes the photoelectric conversion of the downlink incoherent modulated laser signal, and the photoelectrically converted signal enters the high-speed digital baseband, thereby completing the demodulation, decoding and data output of the OOK signal.
[0058] Figure 2 It is a circuit diagram of the high-speed digital baseband provided by this embodiment.
[0059] like Figure 2 As shown, the high-speed digital baseband includes: an acquisition module, a processing module, a clock module, an output module and a monitoring module; the acquisition module, the clock module, the output module and the monitoring module are all connected to the processing module.
[0060] The acquisition module is used to receive the signal after photoelectric conversion and the reference clock generated by the clock unit. The sampling accuracy is 12 bits and the sampling rate is up to 10.4GSPS. The acquisition module can also be configured as dual-channel (5.2GSPS), ADC or single-channel (10.4GSPS). The acquisition module is configured by programming in terms of the number of channels and Nyquist bandwidth, making the hardware flexible.
[0061] The collected signal enters the signal processing module. The signal processing module consists of the following block diagram: Figure 3 , used for digital processing functions such as signal demodulation and decoding. The demodulation method supports on-off keying modulation mode, and the single-channel code rate is adjustable between 625Mbps, 1.25Gbps, 2.5Gbps and 5Gbps. LDPC decoding: LDPC7 / 8, CCSDS standard, final demodulation (including decoding) loss: Eb / No deviation from the theoretical value ≤3.5dB (BER=1E-7).
[0062] The processed signal is output to the external recording device through the output module, and the output rate reaches ≥5Gbps without bit error and speed reduction.
[0063] During the entire demodulation and output process, the monitoring module is used to monitor the industrial computer software and hardware communication establishment and data transmission related parameters; based on data related parameters, real-time error detection and statistics functions, the parameters are reported to the monitoring device in real time through the Gigabit Ethernet port. Figure 4 Shown is a schematic diagram of the composition of the monitoring module.
[0064] Figure 5 It is a schematic diagram of the working principle of the high-speed baseband provided in this embodiment.
[0065] like Figure 4 and Figure 5 As shown: the monitoring module includes FPGA-A, FLASH, DDR, Gigabit network port, and other interface circuits. The functions of the monitoring module are as follows: 1. Industrial computer hardware and software communication; 2. Loading signal processing module program; 3. Signal processing process monitoring and reporting.
[0066] Monitoring is divided into remote control and local autonomous control. Remote control uses an integrated monitoring computer and station control gateway to remotely issue monitoring instructions and query circuit status. The laser transceiver front end, incoherent reception, incoherent detection, and high-speed digital baseband all send circuit working status and information to the local area network through RJ45, and the local area network then forwards it to the integrated monitoring computer to query, analyze, and process the equipment status. Local autonomous control directly configures parameters and queries the working status of the equipment through an industrial computer.
[0067] The main monitoring workflow is as follows: first, establish software and hardware communication with the industrial computer / integrated monitoring computer through RJ45, issue work instructions to the monitoring module, and then load the program to the signal processing module. The signal processing module starts to receive signals, demodulate and process, output data, and other tasks. The status and parameter information during the working process are sent to the monitoring module through the FPGA inter-chip LVDS. After DDR caches some parameters, they are reported to the industrial computer / integrated monitoring computer. The working status and processing parameters of the entire circuit can be queried regularly on the corresponding human-computer interaction interface, realizing the circuit status monitoring function and having the circuit parameter caching capability. The monitoring module can receive or send corresponding telemetry and remote control parameters to other devices through the interface chip and output interface.
[0068] The satellite-to-ground data demodulation processing output control method of the present invention has real-time error detection and statistical functions; demodulation (including decoding) loss: Eb / No deviates from the theoretical value ≤3.5dB (BER=1E-7); high output rate, no error and no speed reduction when ≥5Gbps; monitoring function, through the monitoring unit to achieve real-time monitoring of software and hardware communication and data; good system sensitivity, in single-mode optical fiber, the code rate is 0.625Gbps, and the sensitivity is better than -50dBm. The non-storage design is adopted to simplify the main control board, storage board and other related equipment in the single machine, and the received data is directly output by the demodulation board through the optical fiber, and the data transmission protocol is Aurora.
[0069] Figure 6 It is a structural schematic diagram of the satellite-to-earth data demodulation processing and output control device provided in this embodiment.
[0070] like Figure 6 As shown, the present embodiment provides a satellite-to-ground data demodulation processing output control device, comprising:
[0071] A determination module 601 is used to determine a working mode, where the working mode includes a satellite-to-ground communication mode and an incoherent laser communication service mode;
[0072] The satellite-to-ground communication module 602 is used to carry out satellite-to-ground two-way communication after completing the aiming, capturing, tracking and link establishment of the satellite-to-ground laser link through the satellite-to-ground demodulation processing module and the laser communication payload in coordination when the working mode is the satellite-to-ground communication mode;
[0073] The incoherent laser communication module 603 is used to send downlink signal light to the incoherent receiving device through the laser transceiver front end and the optical subsystem when the working mode is the incoherent laser communication business mode, and complete the power detection, filtering and optoelectronic conversion of the downlink signal light through the incoherent receiving device and the incoherent detection device, and output the electrical baseband signal to the high-speed digital baseband.
[0074] Figure 7 It is a schematic diagram of the structure of the electronic device provided in this embodiment.
[0075] like Figure 7As shown, the electronic device may include: a processor 710, a communication interface 720, a memory 730 and a communication bus 740, wherein the processor 710, the communication interface 720 and the memory 730 communicate with each other through the communication bus 740. The processor 710 may call the logic instructions in the memory 730 to execute the satellite-to-ground data demodulation processing output control method, which includes: determining the working mode, the working mode includes the satellite-to-ground communication mode and the incoherent laser communication business mode; when the working mode is the satellite-to-ground communication mode, after the satellite-to-ground laser link is aimed, captured, tracked and established in coordination with the laser communication payload through the satellite-to-ground demodulation processing module, the satellite-to-ground two-way communication is carried out; when the working mode is the incoherent laser communication business mode, the downlink signal light is sent to the incoherent receiving device through the laser transceiver front end and the optical subsystem, the power detection, filtering and photoelectric conversion of the downlink signal light are completed by the incoherent receiving device and the incoherent detection device, and the electrical baseband signal is output to the high-speed digital baseband.
[0076] In addition, the logic instructions in the above-mentioned memory 730 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on this understanding, the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.
[0077] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the satellite-to-ground data demodulation processing output control method provided by the above methods, and the method includes: determining a working mode, wherein the working mode includes a satellite-to-ground communication mode and an incoherent laser communication business mode; when the working mode is the satellite-to-ground communication mode, after the satellite-to-ground laser link is aimed, captured, tracked and established in coordination with the laser communication payload through the satellite-to-ground demodulation processing module, satellite-to-ground two-way communication is carried out; when the working mode is the incoherent laser communication business mode, downlink signal light is sent to an incoherent receiving device through a laser transceiver front end and an optical subsystem, and the power detection, filtering and photoelectric conversion of the downlink signal light are jointly completed by the incoherent receiving device and the incoherent detection device, and an electrical baseband signal is output to a high-speed digital baseband.
[0078] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the satellite-to-ground data demodulation processing output control method provided by the above-mentioned methods, the method comprising: determining a working mode, the working mode comprising a satellite-to-ground communication mode and an incoherent laser communication service mode; when the working mode is the satellite-to-ground communication mode, after aiming, capturing, tracking and establishing a satellite-to-ground laser link are completed in coordination with the satellite-to-ground demodulation processing module and the laser communication payload, satellite-to-ground two-way communication is carried out; when the working mode is the incoherent laser communication service mode, downlink signal light is sent to an incoherent receiving device through a laser transceiver front end and an optical subsystem, and power detection, filtering and photoelectric conversion of the downlink signal light are completed jointly by the incoherent receiving device and the incoherent detection device, and an electrical baseband signal is output to a high-speed digital baseband.
[0079] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.
[0080] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.
[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A satellite-to-ground data demodulation processing output control method, characterized in that: include: Determining a working mode, wherein the working mode includes a satellite-to-ground communication mode and an incoherent laser communication service mode; When the working mode is the satellite-to-ground communication mode, after the satellite-to-ground laser link is aimed, captured, tracked and established in coordination with the laser communication payload through the satellite-to-ground demodulation processing module, satellite-to-ground two-way communication is carried out; When the working mode is the incoherent laser communication service mode, the downlink signal light is sent to the incoherent receiving device through the laser transceiver front end and the optical subsystem, and the power detection, filtering and photoelectric conversion of the downlink signal light are completed by the incoherent receiving device and the incoherent detection device, and the electrical baseband signal is output to the high-speed digital baseband; The sending of downlink signal light to the incoherent receiving device through the laser transceiver front end and the optical subsystem includes: modulating the baseband to generate a baseband modulation signal, and completing on-off keying modulation by the modulator to obtain signal light; amplifying the signal light by the laser transceiver front end and outputting it to the optical subsystem; completing high-precision aiming and tracking of the target satellite by the optical subsystem, and sending uplink signal light, while receiving downlink signal light from the target satellite and sending it to the laser transceiver front end; completing amplification and output of the downlink signal light by the laser transceiver front end, and outputting it to the incoherent receiving device; The incoherent receiving device and the incoherent detection device jointly complete the power detection, filtering and photoelectric conversion of the downlink signal light, and output the electrical baseband signal to the high-speed digital baseband, including: after the laser transceiver front end completes the low-noise amplification of the downlink 1550nm band laser signal, the incoherent receiving device completes the automatic gain adjustment of the downlink incoherent modulated laser signal, the signal reception and processing, and then enters the incoherent detection device; the incoherent detection device completes the photoelectric conversion of the downlink incoherent modulated laser signal, and the photoelectrically converted signal enters the high-speed digital baseband; The high-speed digital baseband includes: an acquisition module, a processing module, a clock module, an output module and a monitoring module; the acquisition module, the clock module, the output module and the monitoring module are all connected to the processing module; The acquisition module is used to receive the signal after photoelectric conversion and the reference clock generated by the clock unit; the acquisition module is configured by weighing the number of channels and the Nyquist bandwidth in a programming manner.
2. The satellite-to-ground data demodulation processing output control method according to claim 1, characterized in that: The processing module is used for: Demodulate and decode signals; The demodulation method supports an on-off keying modulation mode, and a single channel code rate is adjustable between 625Mbps, 1.25Gbps, 2.5Gbps and 5Gbps.
3. The satellite-to-ground data demodulation processing output control method according to claim 1, characterized in that: The monitoring module is used for: Monitor the parameters related to the establishment of industrial computer software and hardware communication and data transmission; Based on the data related parameters, real-time error detection and statistical functions are implemented, and the parameters are reported to the monitoring device in real time through the Gigabit network port.
4. The satellite-to-earth data demodulation processing output control method according to any one of claims 1 to 3, characterized in that: Before outputting the electrical baseband signal to the high-speed digital baseband, the method further comprises: Initialization of the non-coherent receiver is completed; After the initialization, carrier synchronization, bit synchronization and frame synchronization are completed for coherent digital and non-coherent digital, and downlink received data is output.
5. A satellite-to-ground data demodulation processing output control device, characterized in that: include: A determination module, used to determine an operating mode, wherein the operating mode includes a satellite-to-ground communication mode and an incoherent laser communication service mode; A satellite-to-ground communication module, used for carrying out satellite-to-ground bidirectional communication after completing aiming, capturing, tracking and establishing a satellite-to-ground laser link in collaboration with the laser communication payload through the satellite-to-ground demodulation processing module when the working mode is the satellite-to-ground communication mode; An incoherent laser communication module is used for, when the working mode is the incoherent laser communication service mode, sending downlink signal light to an incoherent receiving device through a laser transceiver front end and an optical subsystem, completing power detection, filtering and photoelectric conversion of the downlink signal light through the incoherent receiving device and the incoherent detection device, and outputting an electrical baseband signal to a high-speed digital baseband, and is specifically used for: modulating the baseband to generate a baseband modulation signal, and completing on-off keying modulation by a modulator to obtain signal light; amplifying the signal light through the laser transceiver front end and outputting it to the optical subsystem; completing high-precision aiming and tracking of the target satellite through the optical subsystem, and sending uplink signal light, while receiving downlink signal light from the target satellite and sending it to the laser transceiver front end; The downlink signal light is amplified and outputted through the laser transceiver front end, and outputted to an incoherent receiving device; The incoherent receiving device and the incoherent detection device jointly complete the power detection, filtering and photoelectric conversion of the downlink signal light, and output the electrical baseband signal to the high-speed digital baseband, including: after the laser transceiver front end completes the low-noise amplification of the downlink 1550nm band laser signal, the incoherent receiving device completes the automatic gain adjustment of the downlink incoherent modulated laser signal, the signal reception and processing, and then enters the incoherent detection device; the incoherent detection device completes the photoelectric conversion of the downlink incoherent modulated laser signal, and the photoelectrically converted signal enters the high-speed digital baseband; the high-speed digital baseband includes: an acquisition module, a processing module, a clock module, an output module and a monitoring module; the acquisition module, the clock module, the output module and the monitoring module are all connected to the processing module; the acquisition module is used to: receive the photoelectrically converted signal and the reference clock generated by the clock unit; the acquisition module is configured by weighing the number of channels and the Nyquist bandwidth in a programming manner.
6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the satellite-to-earth data demodulation processing output control method as described in any one of claims 1 to 4 is implemented.
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