CN115037350B - Dual-band satellite communication analog repeater with automatic gain adjustment - Google Patents
Dual-band satellite communication analog repeater with automatic gain adjustment Download PDFInfo
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- CN115037350B CN115037350B CN202210510172.8A CN202210510172A CN115037350B CN 115037350 B CN115037350 B CN 115037350B CN 202210510172 A CN202210510172 A CN 202210510172A CN 115037350 B CN115037350 B CN 115037350B
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- 238000004891 communication Methods 0.000 title claims abstract description 37
- 238000006243 chemical reaction Methods 0.000 claims abstract description 62
- 238000012545 processing Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 238000013101 initial test Methods 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 6
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 6
- 230000009977 dual effect Effects 0.000 claims description 13
- 238000001914 filtration Methods 0.000 claims description 9
- 230000003321 amplification Effects 0.000 claims description 3
- 230000002238 attenuated effect Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000012549 training Methods 0.000 description 6
- 230000002194 synthesizing effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention discloses a dual-band satellite communication analog repeater with automatic gain adjustment, which comprises: ku conversion unit and Ka conversion unit, each of which includes: the power adjusting module is used for adjusting the received uplink signals; the first frequency conversion module is used for processing the received uplink signals and outputting intermediate frequency signals; the power detection module is used for detecting the power of the intermediate frequency signal; the gain adjusting module is used for processing the intermediate frequency signals and adjusting the gain; the second frequency conversion module converts the regulated intermediate frequency signal into a downlink signal; a beacon module for generating a beacon signal; the synthesis module synthesizes the downlink signals and the beacon signals; the repeater also comprises a control module for processing the received control and inquiry instructions and sending the control and inquiry instructions to a corresponding conversion unit, processing the calibration values obtained by the initial test data and the power values obtained by the power detection module, and sending the obtained parameter signals to the gain adjustment module. The purpose of automatically adjusting the link gain is achieved.
Description
Technical Field
The invention belongs to the technical field of satellite communication, and particularly relates to a dual-band satellite communication analog repeater with automatic gain adjustment.
Background
In the satellite communication field, satellite earth stands in daily equipment maintenance, system testing, signal monitoring, in order to reduce costs and reduce the impact on the lifetime of satellite transponders, analog satellite transponders are often used instead of real satellite transponders.
After the satellite communication equipment distributes the army, on one hand, daily training of the satellite communication equipment is needed, but due to shortage of satellite resources, the army cannot perform high-strength and multi-task communication training work.
Therefore, it is needed to provide a dual-band satellite communication analog repeater with automatic gain adjustment, which solves the technical problems that satellite resources are tense and high-intensity and multi-task communication training work of troops cannot be performed.
Disclosure of Invention
The invention aims to provide a dual-band satellite communication analog repeater with automatic gain adjustment, which is at least used for solving the technical problem that satellite resources are tense and high-strength and multi-task communication training work cannot be carried out by troops.
In order to achieve the above object, the present invention provides a dual-band satellite communication analog repeater with automatic gain adjustment, comprising:
the Ku conversion unit is used for converting an uplink signal received through a receiving antenna of a Ku frequency band and outputting the uplink signal through a transmitting antenna of the Ku frequency band;
the Ka conversion unit is used for converting uplink signals received by the receiving antenna of the Ka frequency band and outputting the uplink signals through the transmitting antenna of the Ka frequency band;
the Ku-conversion unit and the Ka-conversion unit each include:
the power adjusting module is used for adjusting the power of the received uplink signal;
the first frequency conversion module is used for carrying out frequency conversion and filtering treatment on the uplink signal subjected to power adjustment and outputting an intermediate frequency signal;
the power detection module is used for carrying out power detection on the intermediate frequency signal output by the first frequency conversion module and transmitting the acquired power value to the control module;
the gain adjusting module is used for processing the intermediate frequency signal output by the first frequency conversion module, processing the intermediate frequency signal through the control module according to the calibration value acquired by the initial test data and the power value acquired by the power detection module, and adjusting the gain of the intermediate frequency signal according to the parameter signal fed back by the control module;
the second frequency conversion module: converting the intermediate frequency signal after gain adjustment into a downlink signal;
a beacon module for generating a beacon signal;
the synthesis module synthesizes the downlink signal generated by the second frequency conversion module and the beacon signal generated by the beacon module and outputs the synthesized downlink signal through a transmitting antenna;
the repeater further includes:
the control module is connected with the Ku conversion unit and the Ka conversion unit, and is used for processing the received control instruction and the query instruction, sending the control instruction and the query instruction to the corresponding Ku conversion unit and the Ka conversion unit, processing the calibration value acquired by the initial test data and the power value acquired by the power detection module, and sending the parameter signal acquired after the processing to the gain adjustment module.
Optionally, the gain adjustment module specifically includes: the power detection module is used for carrying out filtering processing, power amplification and attenuator adjustment on the intermediate frequency signal output by the first frequency conversion module, carrying out calculation processing through the control module according to the calibration value calculated by the initial test data and the power value obtained by the power detection module, and carrying out gain adjustment on the intermediate frequency signal according to the parameter signal fed back by the control module.
Optionally, the control module is configured to process the calibration value obtained by the initial test data and the power value obtained by the power detection module, and send the parameter signal obtained after the processing to the gain adjustment module specifically includes:
and calculating a gain or attenuation value required by the current gain adjusting module according to the calibration value acquired by the initial test data and the power value acquired by the power detecting module, and transmitting a parameter signal of the acquired gain or attenuation value to the gain adjusting module.
Optionally, the repeater further includes:
and the WiFi module is connected with the terminal equipment and is used for receiving the control instruction and the inquiry instruction of the terminal equipment and sending the received instructions to the control module.
Optionally, the WiFi module is electrically connected with the transmitting antenna and the control module, demodulates the downlink signal sent by the transmitting antenna into a digital signal, sends the digital signal to the control module, modulates the digital signal sent by the control module into an uplink signal, and radiates the uplink signal through the WiFi antenna.
Optionally, the repeater further comprises:
and the power supply module is mainly used for processing the power supply input from the outside and transmitting the processed power supply to the transponder.
Optionally, the power supply is a dual power supply.
Optionally, the power adjustment module is mainly configured to adjust power of the received uplink signal, and specifically includes: the higher power signal is attenuated and the lower power signal is amplified.
Optionally, the second frequency conversion module specifically includes:
and performing frequency conversion and filtering processing on the intermediate frequency signal after gain adjustment, and converting the intermediate frequency signal into a downlink signal of the satellite communication equipment.
Optionally, after the combining module combines the downlink signal and the beacon signal and before outputting the downlink signal and the beacon signal through a transmitting antenna, the combining module further includes: the resultant signal is filtered and amplified.
The invention has the beneficial effects that:
according to the invention, by adding the power adjusting module, the frequency conversion module, the power detection module, the gain adjusting module, the synthesizing module and the control module, the calibration value calculated according to the initial test data and the power value detected by the power detection module can be calculated and processed by the control module, the intermediate frequency link gain can be adjusted, the closed loop is realized, the automatic adjustment of the link gain is achieved, the signal-to-noise ratio of the output signal of the analog repeater is finally changed, the free space loss and the rain fall are simulated, and the technical problems that satellite resources are tense and the army cannot develop high-strength and multi-task communication training work are solved.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular descriptions of exemplary embodiments of the invention as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the invention.
Fig. 1 shows a schematic structure of a dual-band satellite communication analog repeater with automatic gain adjustment according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the preferred embodiments of the present invention are described below, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example 1
Fig. 1 shows a schematic structure of a dual-band satellite communication analog repeater with automatic gain adjustment.
As shown in fig. 1, a dual-band satellite communication analog repeater with automatic gain adjustment includes:
the Ku conversion unit is used for converting an uplink signal received through a receiving antenna of a Ku frequency band and outputting the uplink signal through a transmitting antenna of the Ku frequency band;
the Ka conversion unit is used for converting uplink signals received by the receiving antenna of the Ka frequency band and outputting the uplink signals through the transmitting antenna of the Ka frequency band;
the Ku-conversion unit and the Ka-conversion unit each include:
the power detection module is used for carrying out power detection on the intermediate frequency signal output by the first frequency conversion module and transmitting the acquired power value to the control module;
the gain adjusting module is used for processing the intermediate frequency signal output by the first frequency conversion module, processing the intermediate frequency signal through the control module according to the calibration value acquired by the initial test data and the power value acquired by the power detection module, and adjusting the gain of the intermediate frequency signal according to the parameter signal fed back by the control module;
the second frequency conversion module: converting the intermediate frequency signal after gain adjustment into a downlink signal;
a beacon module for generating a beacon signal;
the synthesis module synthesizes the downlink signal generated by the second frequency conversion module and the beacon signal generated by the beacon module and outputs the synthesized downlink signal through a transmitting antenna;
the repeater further includes:
the control module is connected with the Ku conversion unit and the Ka conversion unit, and is used for processing the received control instruction and the query instruction, sending the control instruction and the query instruction to the corresponding Ku conversion unit and the Ka conversion unit, processing the calibration value acquired by the initial test data and the power value acquired by the power detection module, and sending the parameter signal acquired after the processing to the gain adjustment module.
Specifically, the Ku and Ka receiving antennas are used for receiving uplink signals of ground satellite communication equipment and outputting the uplink signals to the power adjusting module at the rear end; the Ku and Ka transmitting antennas are used for radiating downlink signals and beacon signals which are received by the analog transponder and subjected to frequency conversion and other processing, and are used for receiving ground satellite communication equipment.
The beacon module is used for generating a simulated generation beacon signal and can be used for a ground satellite communication device to track a simulated transponder, and the beacon module outputs the signal to a synthesis module at the back end.
Specifically, the power adjustment module is mainly configured to adjust power of a received uplink signal, and specifically includes: the higher power signal is attenuated and the lower power signal is amplified.
Specifically, the power detection module is used for detecting the power of the intermediate frequency signal output by the first frequency conversion module, and the control module is used for measuring and calculating the current signal power according to the front-end gain and the attenuation amount to provide adjustment parameters for the automatic gain adjustment of the rear end.
Optionally, the gain adjustment module specifically includes: the power detection module is used for carrying out filtering processing, power amplification and attenuator adjustment on the intermediate frequency signal output by the first frequency conversion module, carrying out calculation processing on a calibration value calculated according to initial test data and a power value obtained by the power detection module through the control module, and carrying out gain adjustment on the intermediate frequency signal according to a parameter signal fed back by the control module.
It should be noted that, the gain adjusting module is configured to perform filtering processing and adjustment of the power amplifier and attenuator on the intermediate frequency signal, and may perform calculation processing according to the calibration value and the power value detected by the power calculated by the initial test data through the external control module, so as to adjust the intermediate frequency link gain, and output the intermediate frequency link gain to the second frequency conversion module.
The second frequency conversion module specifically comprises:
and performing frequency conversion and filtering processing on the intermediate frequency signal after gain adjustment, and converting the intermediate frequency signal into a downlink signal of the satellite communication equipment.
The synthesizing module synthesizes the downlink signal and the beacon signal and outputs the synthesized downlink signal and the beacon signal through a transmitting antenna, and then the synthesizing module further comprises: the resultant signal is filtered and amplified.
Specifically, the synthesis module synthesizes the downlink signal and the beacon signal generated by the second frequency conversion module, filters and amplifies the signals, and outputs the signals to the corresponding transmitting antenna at the rear end.
According to the invention, by adding the power adjusting module, the frequency conversion module, the power detection module, the gain adjusting module, the synthesizing module and the control module, the calibration value calculated according to the initial test data and the power value obtained by the power detection module can be calculated and processed by the control module, the intermediate frequency link gain can be adjusted, the closed loop is realized, the automatic adjustment of the link gain is achieved, the signal-to-noise ratio of the output signal of the analog repeater is finally changed, the free space loss and the rain fall are simulated, and the technical problems that satellite resources are tense and the army cannot develop high-strength and multi-task communication training work are solved.
Specifically, the WiFi module is electrically connected with the transmitting antenna and the control module respectively, demodulates the downlink signals transmitted by the transmitting antenna into digital signals and transmits the digital signals to the control module, modulates the digital signals transmitted by the control module into uplink signals, and radiates out through the WiFi antenna.
The WIFI module is connected with the terminal equipment and is used for receiving the control instruction and the inquiry instruction of the terminal equipment and sending the received instructions to the control module.
In this embodiment, a mobile phone or a computer device may be used to connect to a wireless WiFi on a Ku/Ka dual band wireless satellite communication analog repeater, and a device browser user is used to log in to perform operation control and status inquiry on the analog repeater, and to turn on a noise loading function and adjust noise output power. The WFI module is added to realize wireless forwarding and remote control of the Ku/Ka analog transponder, so that a control line is not required to be connected, and the installation is convenient.
The Ku-conversion unit and the Ka-conversion unit further include:
and the power supply module is mainly used for processing the power supply input from the outside and transmitting the processed power supply to the transponder.
In the embodiment, the power supply is a dual power supply, the dual power supply can be used for power supply, the power supply can be switched in a self-adaptive way, the power supply can be supplied by an external battery, an external cable is not required to be connected, and the convenient installation and use can be realized; the repeater also comprises a box body, each functional module can be integrated in the box body, and the Ku/Ka dual-band wireless satellite communication analog repeater can be installed on the lifting rod or lifted by adopting an unmanned aerial vehicle when the analog repeater is powered by a battery, so that the problem caused by an external cable is not needed to be worried about.
The foregoing description of embodiments of the invention has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. A dual band satellite communication analog repeater with automatic gain adjustment, comprising:
the Ku conversion unit is used for converting an uplink signal received through a receiving antenna of a Ku frequency band and outputting the uplink signal through a transmitting antenna of the Ku frequency band;
the Ka conversion unit is used for converting uplink signals received by the receiving antenna of the Ka frequency band and outputting the uplink signals through the transmitting antenna of the Ka frequency band;
the Ku-conversion unit and the Ka-conversion unit each include:
the power adjusting module is used for adjusting the power of the received uplink signal;
the first frequency conversion module is used for carrying out frequency conversion and filtering treatment on the uplink signal subjected to power adjustment and outputting an intermediate frequency signal;
the power detection module is used for carrying out power detection on the intermediate frequency signal output by the first frequency conversion module and transmitting the acquired power value to the control module;
the gain adjusting module is used for processing the intermediate frequency signal output by the first frequency conversion module, processing the intermediate frequency signal through the control module according to the calibration value acquired by the initial test data and the power value acquired by the power detection module, and adjusting the gain of the intermediate frequency signal according to the parameter signal fed back by the control module;
the second frequency conversion module: converting the intermediate frequency signal after gain adjustment into a downlink signal;
a beacon module for generating a beacon signal;
the synthesis module synthesizes the downlink signal generated by the second frequency conversion module and the beacon signal generated by the beacon module and outputs the synthesized downlink signal through a transmitting antenna;
the repeater further includes:
the control module is connected with the Ku conversion unit and the Ka conversion unit, and is used for processing the received control instruction and the query instruction, sending the control instruction and the query instruction to the corresponding Ku conversion unit and the Ka conversion unit, processing the calibration value acquired by the initial test data and the power value acquired by the power detection module, and sending the parameter signal acquired after the processing to the gain adjustment module.
2. The dual band satellite communication analog repeater with gain auto-adjustment according to claim 1, wherein the gain adjustment module specifically comprises: the power detection module is used for carrying out filtering processing, power amplification and attenuator adjustment on the intermediate frequency signal output by the first frequency conversion module, carrying out calculation processing through the control module according to the calibration value calculated by the initial test data and the power value obtained by the power detection module, and carrying out gain adjustment on the intermediate frequency signal according to the parameter signal fed back by the control module.
3. The dual-band satellite communication analog repeater with automatic gain adjustment according to claim 1, wherein the control module is configured to process the calibration value obtained by the initial test data and the power value obtained by the power detection module, and send the parameter signal obtained after the processing to the gain adjustment module specifically includes:
and calculating a gain or attenuation value required by the current gain adjusting module according to the calibration value acquired by the initial test data and the power value acquired by the power detecting module, and transmitting a parameter signal of the acquired gain or attenuation value to the gain adjusting module.
4. The dual band satellite communication analog repeater with automatic gain adjustment according to claim 1, wherein the repeater further comprises:
and the WiFi module is connected with the terminal equipment and is used for receiving the control instruction and the inquiry instruction of the terminal equipment and sending the received instructions to the control module.
5. The dual band satellite communication analog repeater with automatic gain adjustment according to claim 4,
the WiFi module is respectively and electrically connected with the transmitting antenna and the control module, demodulates the downlink signals transmitted by the transmitting antenna into digital signals and transmits the digital signals to the control module, modulates the digital signals transmitted by the control module into uplink signals, and radiates out through the WiFi antenna.
6. The dual band satellite communication analog repeater with automatic gain adjustment according to claim 1, wherein the repeater further comprises:
and the power supply module is mainly used for processing the power supply input from the outside and transmitting the processed power supply to the transponder.
7. The dual band satellite communication analog repeater with automatic gain adjustment according to claim 6, wherein the power source is a dual power source.
8. The dual-band satellite communication analog repeater with automatic gain adjustment according to claim 1, wherein the power adjustment module is mainly configured to adjust the power of the received uplink signal, and specifically comprises: the higher power signal is attenuated and the lower power signal is amplified.
9. The dual band satellite communication analog repeater with automatic gain adjustment according to claim 1, wherein the second frequency conversion module specifically comprises:
and performing frequency conversion and filtering processing on the intermediate frequency signal after gain adjustment, and converting the intermediate frequency signal into a downlink signal of the satellite communication equipment.
10. The dual band satellite communication analog repeater with gain auto-adjustment according to claim 1, wherein the combining module further comprises after combining the downlink signal and the beacon signal and before outputting through the transmitting antenna: the resultant signal is filtered and amplified.
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| CN115037347A (en) * | 2022-05-11 | 2022-09-09 | 中国人民解放军陆军装甲兵学院 | Dual-band satellite communication simulation transponder |
| CN116743241B (en) * | 2023-08-16 | 2023-10-13 | 天津讯联科技有限公司 | Inter-satellite link system implementation method suitable for satellite-surrounding flying formation |
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