CN113556146B - Measurement and control transponder and measurement and control response system loaded on controlled satellite - Google Patents

Measurement and control transponder and measurement and control response system loaded on controlled satellite Download PDF

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Publication number
CN113556146B
CN113556146B CN202110830128.0A CN202110830128A CN113556146B CN 113556146 B CN113556146 B CN 113556146B CN 202110830128 A CN202110830128 A CN 202110830128A CN 113556146 B CN113556146 B CN 113556146B
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module
signal
control
processing
remote control
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CN113556146A (en
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齐培军
郇一恒
高恩宇
刁占林
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Beijing MinoSpace Technology Co Ltd
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Beijing MinoSpace Technology Co Ltd
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/59Responders; Transponders
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/185Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851Systems using a satellite or space-based relay
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Abstract

The application provides a survey and control transponder and survey and control response system of loading on controlled satellite, this survey and control transponder includes: the device comprises an uplink receiving channel module, a downlink transmitting channel module, a main control module, an interface module, an open collector module, a clock module and a power supply module; the measurement and control transponder can receive a remote control radio frequency signal in a VHF frequency band from a ground control center forwarded by the satellite-borne antenna, and then responds to the received remote control radio frequency signal to send a telemetering radio frequency signal in a UHF frequency band to the satellite-borne antenna, wherein the telemetering radio frequency signal is a response signal of the measurement and control transponder aiming at the remote control radio frequency signal, and the satellite-borne antenna forwards the received response signal to the ground control center. The measurement and control transponder can meet the measurement and control communication requirements of the micro-nano satellite through the design structure, a satellite-ground link between the controlled satellite and the ground control center is established, and the functions of remote control, remote measurement and the like of the controlled satellite by the ground control center are realized.

Description

Measurement and control transponder and measurement and control response system loaded on controlled satellite
Technical Field
The application relates to the technical field of satellite measurement and control, in particular to a measurement and control transponder and a measurement and control response system which are loaded on a controlled satellite.
Background
The micro-nano satellite generally refers to a satellite with the mass of less than 10 kilograms and with a practical use function. With the continuous development of aerospace technology, micro-nano satellites gradually become one of the research hotspots in the current aerospace field due to the advantages of small size, low power consumption, short research and development period, capability of being networked in a formation manner, capability of completing complex space tasks at lower cost and the like. The measurement and control transponder is used as an important component in a micro/nano satellite control system and is mainly used for establishing a satellite-ground link and realizing the functions of remote control, remote measurement and the like of a ground control center on a micro/nano satellite; because the measurement and control responder bears important responsibility in a micro-nano satellite control system, how to optimize the design structure of the measurement and control responder becomes a technical problem which needs to be solved urgently in the technical field of current satellite measurement and control.
At present, the traditional satellite-borne measurement and control transponder is generally an S/X wave band measurement and control transponder developed according to industrial standards, and the working frequency band of the satellite-borne measurement and control transponder is positioned at an S wave band or an X wave band; the frequency band range corresponding to the S wave band is 2-4 GHz, and the frequency band range corresponding to the X wave band is 8-12 GHz. However, different from a common satellite, the common measurement and control communication frequency band of the micro-nano satellite is a VHF/UHF frequency band, wherein the VHF frequency band is a very high frequency, and the frequency band range corresponding to the VHF frequency band is 30-300 mhz; the UHF band is a very high frequency, and the corresponding frequency band range of the UHF band is 300-3000 MHz. Therefore, the working frequency band of the traditional satellite-borne measurement and control transponder is not suitable for measurement and control communication of the micro-nano satellite, and the measurement and control communication requirements of the micro-nano satellite cannot be met according to the design structure of the traditional satellite-borne measurement and control transponder.
Disclosure of Invention
In view of this, an object of the present application is to provide a measurement and control transponder and a measurement and control transponder system mounted on a controlled satellite, so as to optimize a design structure of the measurement and control transponder, so that the design structure of the measurement and control transponder can meet measurement and control communication requirements of a micro-nano satellite.
In a first aspect, an embodiment of the present application provides a measurement and control transponder loaded on a controlled satellite, where the measurement and control transponder is applied to a measurement and control transponder system; the measurement and control response system is mounted on the controlled satellite, and comprises: the system comprises a measurement and control transponder, a satellite-borne antenna, a satellite-borne computer, a satellite-borne power supply and at least one satellite-borne device; the measurement and control transponder comprises: the device comprises an uplink receiving channel module, a downlink transmitting channel module, a main control module, an interface module, an open collector module, a clock module and a power supply module;
the uplink receiving channel module is used for receiving a remote control radio frequency signal sent by the satellite-borne antenna and performing first signal processing on the remote control radio frequency signal to obtain a remote control digital signal corresponding to the remote control radio frequency signal; and sending the remote control digital signal to the main control module; the communication frequency band to which the remote control radio frequency signal belongs is a Very High Frequency (VHF) frequency band;
the main control module is used for responding to the received remote control digital signal and sending the remote control digital signal to the interface module;
receiving a telemetry signal sent by the interface module, and sending the telemetry signal to the downlink transmitting channel module;
the downlink transmitting channel module is used for responding to the received telemetry signal and carrying out second signal processing on the telemetry signal to obtain a telemetry radio frequency signal corresponding to the telemetry signal; sending the telemetry radio frequency signal to the satellite-borne antenna as a response signal aiming at the remote control radio frequency signal; the communication frequency band to which the telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band; the telemetry radio frequency signal is used for representing the working state of the controlled satellite;
the interface module is used for responding to the received remote control digital signal and sending the remote control digital signal to the satellite-borne computer;
receiving the telemetry signal fed back by the spaceborne computer, and sending the telemetry signal to the main control module;
the collector open-circuit module is used for responding to a control signal sent by the main control module and sending a control instruction corresponding to the control signal to the at least one satellite-borne device according to the control signal; wherein the control signal comprises at least: a power-on control signal and a power-off control signal;
the clock module is configured to send a reference clock signal to the uplink receiving channel module, the main control module, and the downlink transmitting channel module respectively;
the power supply module is used for receiving a voltage signal output by the satellite-borne power supply and supplying power to the uplink receiving channel module, the downlink transmitting channel module, the main control module, the interface module, the collector open-circuit module and the clock module by using the voltage signal.
Optionally, the uplink receiving channel module includes: the receiving filter, a first amplifying module, a second amplifying module, a first local oscillator module, a down-conversion module, a first processing module, a second processing module and an uplink input and output cache module, wherein the first amplifying module, the second amplifying module, the first local oscillator module, the down-conversion module, the first processing module, the second processing module and the uplink input and output cache module are integrally distributed on an integrated receiving chip;
the receiving filter is used for receiving the remote control radio frequency signal, filtering the remote control radio frequency signal, and sending the remote control radio frequency signal after filtering as a first remote control radio frequency signal to the first amplifying module;
the first amplification module is used for responding to the received first remote control radio frequency signal, performing low-noise amplification on the first remote control radio frequency signal, and sending the first remote control radio frequency signal subjected to low-noise amplification to the second amplification module as a second remote control radio frequency signal;
the second amplifying module is configured to perform automatic gain control AGC amplification on the second remote control radio frequency signal in response to the received second remote control radio frequency signal, and send the second remote control radio frequency signal amplified by the automatic gain control AGC as a third remote control radio frequency signal to the down-conversion module;
the first local oscillator module is configured to receive a first reference clock signal sent by the clock module, and generate a first local oscillator signal based on the first reference clock signal; sending the generated first local oscillation signal to the down-conversion module;
the down-conversion module is configured to perform down-conversion processing on a mixed signal of the third remote control radio frequency signal and the first local oscillator signal in response to the received third remote control radio frequency signal and the received first local oscillator signal, so as to obtain a fourth remote control radio frequency signal; wherein the frequency band range of the fourth remote control radio frequency signal is located in the frequency band range of the low intermediate frequency signal;
performing quadrature decomposition on the fourth remote control radio frequency signal, and sending an in-phase component of the fourth remote control radio frequency signal to the first processing module;
sending the quadrature component of the fourth remote control radio frequency signal to the second processing module;
the first processing module is configured to, in response to the received in-phase component of the fourth remote control radio frequency signal, sequentially perform low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the in-phase component of the fourth remote control radio frequency signal, and send a result of the decoding and descrambling processing as a first remote control digital signal to the uplink input/output cache module;
the second processing module is configured to, in response to the received quadrature component of the fourth remote control radio frequency signal, sequentially perform low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the quadrature component of the fourth remote control radio frequency signal, and send a result of the decoding and descrambling processing to the uplink input/output cache module as a second remote control digital signal;
the uplink input/output buffer module is configured to perform merging processing on the received first remote control digital signal and the second remote control digital signal, and send a result of the merging processing to the main control module as the remote control digital signal.
Optionally, the downlink transmit channel module includes: the system comprises a downlink input/output cache module, a third processing module, a fourth processing module, a second local oscillator module, an up-conversion module, a band-pass filter, a power amplifier module and an isolator; the downlink input/output buffer module, the third processing module, the fourth processing module, the second local oscillation module and the up-conversion module are integrated and distributed on the integrated transmitting chip;
the downlink input/output buffer module is used for responding to the received telemetry signal and carrying out orthogonal decomposition on the telemetry signal to obtain an in-phase component and an orthogonal component of the telemetry signal;
sending an in-phase component of the telemetry signal to the third processing module as a first telemetry signal;
sending the quadrature component of the telemetry signal as a second telemetry signal to the fourth processing module;
the third processing module is configured to, in response to the received first telemetry signal, sequentially perform framing processing, encoding processing, scrambling processing, and modulation processing on the first telemetry signal, and send a result of the modulation processing as a third telemetry signal to the up-conversion module;
the fourth processing module is configured to, in response to the received second telemetry signal, sequentially perform framing processing, encoding processing, scrambling processing, and modulation processing on the second telemetry signal, and send a result of the modulation processing as a fourth telemetry signal to the up-conversion module;
the second local oscillator module is configured to receive a second reference clock signal sent by the clock module, and generate a second local oscillator signal based on the second reference clock signal; sending the generated second local oscillation signal to the up-conversion module; the up-conversion module is configured to perform up-conversion processing on a mixed signal of the third telemetry signal, the fourth telemetry signal and the second local oscillator signal in response to the received third telemetry signal, the fourth telemetry signal and the second local oscillator signal, and send a result of the up-conversion processing to the band-pass filter as a first telemetry radio frequency signal; the communication frequency band to which the first telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band;
the band-pass filter is used for responding to the received first telemetering radio-frequency signal, performing band-pass filtering processing on the first telemetering radio-frequency signal, and sending a result of the band-pass filtering processing to the power amplification module as a second telemetering radio-frequency signal;
the power amplification module is used for responding to the received second telemetering radio-frequency signal, performing power amplification on the second telemetering radio-frequency signal, and sending a power amplification result serving as a third telemetering radio-frequency signal to the isolator; wherein the third telemetry radio frequency signal has a power of at least 0.5 watts;
the isolator is used for responding to the received third telemetering radio-frequency signal, sending the third telemetering radio-frequency signal to the satellite-borne antenna as the telemetering radio-frequency signal, and preventing the telemetering radio-frequency signal from returning to the power amplifier module in the sending process.
Optionally, the interface module at least includes: RS422 interface circuit and CAN bus circuit;
the RS422 interface circuit is used for responding to the remote control digital signal sent by the main control module and sending the remote control digital signal to the spaceborne computer;
receiving the telemetry signal fed back by the spaceborne computer, and sending the telemetry signal to the main control module;
the CAN bus circuit is used for receiving satellite interaction data sent by the satellite-borne computer and sending the satellite interaction data to the main control module.
Optionally, the clock module at least includes: a temperature compensation crystal oscillator and a clock distribution chip;
the temperature compensation crystal oscillator is used for generating a clock signal corresponding to a standard frequency according to the standard frequency corresponding to the temperature compensation crystal oscillator within a working temperature range corresponding to the temperature compensation crystal oscillator; sending the clock signal to the clock distribution chip; wherein the frequency value of the standard frequency at least comprises: 32 MHz; the difference value of the frequency value of the clock signal and the frequency value of the standard frequency is positioned in the frequency deviation range corresponding to the temperature compensation crystal oscillator;
the clock distribution chip is used for responding to the received clock signals and distributing the clock signals into 3 paths of reference clock signals according to preset clock distribution conditions; and respectively sending the distributed 3 paths of reference clock signals to the uplink receiving channel module, the main control module and the downlink transmitting channel module.
Optionally, the power module includes: the device comprises a current-limiting protection circuit, a relay, a surge suppression circuit, an EMI filter circuit, an acquisition circuit and a voltage converter;
the current-limiting protection circuit is used for receiving a voltage signal output by the satellite-borne power supply, performing current-limiting protection processing on the voltage signal, and sending the voltage signal subjected to current-limiting protection processing to the relay as a first voltage signal;
the relay is used for responding to a switch control instruction sent by the satellite-borne computer and sending the received first voltage signal to the surge suppression circuit under the condition that the switch control instruction is a starting instruction;
the surge suppression circuit is used for responding to the received first voltage signal, performing surge suppression processing on the first voltage signal, and sending the first voltage signal subjected to the surge suppression processing to the EMI filter circuit as a second voltage signal;
the EMI filter circuit is used for responding to the received second voltage signal, performing filtering processing on the second voltage signal, and sending the second voltage signal after filtering processing to the acquisition circuit;
the acquisition circuit is used for responding to the received second voltage signal, acquiring voltage of the second voltage signal according to a preset voltage acquisition range, and sending a voltage acquisition result serving as a third voltage signal to the voltage converter; wherein the voltage value of the third voltage signal is within the voltage acquisition range;
the voltage converter is used for responding to the received third voltage signal, performing voltage conversion processing on the third voltage signal according to a working voltage value corresponding to a module to be powered, and sending the third voltage signal after the voltage conversion processing to the module to be powered as a target voltage signal; wherein, the voltage value of the target voltage signal is the working voltage value, and the module to be powered includes: the uplink receiving channel module, the downlink transmitting channel module, the main control module, the interface module, the collector open-circuit module and the clock module.
Optionally, the main control module is further configured to send a first local oscillation control instruction to the uplink receiving channel module, so as to control a local oscillation frequency of the uplink receiving channel module by using the first local oscillation control instruction;
and sending a second local oscillation control instruction to the downlink transmitting channel module so as to control the local oscillation frequency of the downlink transmitting channel module by using the second local oscillation control instruction.
Optionally, the first processing module includes: the device comprises a first low-pass filtering unit, a first analog-to-digital conversion unit, a first demodulation unit and a first decoding and descrambling unit; wherein the first low-pass filtering unit, the first analog-to-digital converting unit, the first demodulating unit and the first decoding and descrambling unit are connected in a serial structure.
Optionally, the second processing module includes: the second low-pass filtering unit, the second analog-to-digital conversion unit, the second demodulation unit and the second decoding and descrambling unit; the second low-pass filtering unit, the second analog-to-digital converting unit, the second demodulating unit and the second decoding and descrambling unit are connected in a serial structure.
Optionally, the third processing module includes: the device comprises a first group of frame units, a first coding unit, a first scrambling unit and a first modulation unit; wherein the first group of frame units, the first encoding unit, the first scrambling unit, and the first modulation unit are connected by a serial structure.
Optionally, the fourth processing module includes: a second group of frame units, a second coding unit, a second scrambling unit and a second modulation unit; wherein the second group of frame units, the second encoding unit, the second scrambling unit, and the second modulation unit are connected by a serial structure.
In a second aspect, an embodiment of the present application provides a measurement and control response system loaded on a controlled satellite, where the measurement and control response system is loaded on the controlled satellite, and the measurement and control response system includes: the system comprises a measurement and control transponder, a satellite-borne antenna, a satellite-borne computer, a satellite-borne power supply and at least one satellite-borne device;
the measurement and control transponder is used for receiving a remote control radio frequency signal sent by the satellite-borne antenna, and performing first signal processing on the remote control radio frequency signal to obtain a remote control digital signal corresponding to the remote control radio frequency signal; sending the remote control digital signal to the satellite borne computer; the communication frequency band to which the remote control radio frequency signal belongs is a Very High Frequency (VHF) frequency band;
receiving a telemetering signal fed back by the spaceborne computer aiming at the remote control digital signal, and carrying out second signal processing on the telemetering signal to obtain a telemetering radio frequency signal corresponding to the telemetering signal; sending the telemetry radio frequency signal to the satellite-borne antenna as a response signal aiming at the remote control radio frequency signal; the communication frequency band to which the telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band;
the on-board computer is used for responding to the received remote control digital signal, generating the remote measuring signal and sending the remote measuring signal to the measurement and control answering machine; wherein the telemetry signal is a signal for characterizing an operating state of the controlled satellite;
the satellite-borne power supply is used for sending a voltage signal to the measurement and control transponder and supplying power to the measurement and control transponder;
the at least one satellite-borne device is used for receiving the control instruction sent by the measurement and control transponder and responding to the received control instruction to execute a target task corresponding to the control instruction; wherein the control instructions at least comprise: a power-on control command and a power-off control command.
The technical scheme provided by the embodiment of the application can have the following beneficial effects:
the application provides a measurement and control transponder loaded on a controlled satellite, wherein the measurement and control transponder is applied to a measurement and control transponder system; the measurement and control response system is mounted on the controlled satellite, and comprises: the system comprises a measurement and control transponder, a satellite-borne antenna, a satellite-borne computer, a satellite-borne power supply and at least one satellite-borne device; the measurement and control transponder comprises: the device comprises an uplink receiving channel module, a downlink transmitting channel module, a main control module, an interface module, an open collector module, a clock module and a power supply module; the measurement and control transponder 1 can receive a remote control radio frequency signal in a VHF frequency band from a ground control center forwarded by the satellite-borne antenna 2, the measurement and control transponder 1 responds to the received remote control radio frequency signal and sends a remote measurement radio frequency signal in a UHF frequency band to the satellite-borne antenna 2, the remote measurement radio frequency signal is a response signal of the measurement and control transponder 1 aiming at the remote control radio frequency signal, and the satellite-borne antenna 2 forwards the received response signal to the ground control center. The measurement and control transponder 1 can meet the measurement and control communication requirements of the micro-nano satellite through the design structure, a satellite-ground link between the controlled satellite and the ground control center is established, and the functions of remote control, remote measurement and the like of the ground control center on the controlled satellite are realized.
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 shows a schematic structural diagram of a measurement and control transponder in a measurement and control response system according to an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a specific structure of an uplink receiving channel module according to an embodiment of the present application;
fig. 3 is a schematic structural diagram illustrating a first processing module according to an embodiment of the present disclosure;
fig. 4 shows a specific structural diagram of a second processing module provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram illustrating a downlink transmit channel module according to an embodiment of the present application;
fig. 6 shows a specific structural diagram of a third processing module provided in an embodiment of the present application;
fig. 7 is a schematic structural diagram illustrating a fourth processing module according to an embodiment of the present disclosure;
fig. 8 shows a specific structural diagram of a power module provided in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, as generally described and illustrated in the figures herein, could be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a measurement and control transponder and a measurement and control transponder system loaded on a controlled satellite, which are described through the following embodiments.
Example one
Fig. 1 shows a schematic structural diagram of a measurement and control transponder in a measurement and control response system according to an embodiment of the present application; as shown in fig. 1, the measurement and control answering machine 1 is applied to a measurement and control answering system, and the measurement and control answering system includes: the system comprises a measurement and control transponder 1, a satellite-borne antenna 2, a satellite-borne computer 3, a satellite-borne power supply 4 and at least one satellite-borne device 5; the system comprises a measurement and control transponder 1, a satellite-borne antenna 2, a UHF antenna and a UHF antenna, wherein the measurement and control transponder 1 receives an uplink remote control signal of the VHF frequency band sent by the satellite-borne antenna 2, responds to the received uplink remote control signal of the VHF frequency band, and sends a downlink remote control signal of the UHF frequency band to the satellite-borne antenna 2, and the downlink remote control signal is a response signal of the measurement and control transponder 1 aiming at the uplink remote control signal; the downlink telemetry signal is also used to characterize the operating state of the controlled satellite.
It should be noted that the measurement and control transponder system is installed on a controlled satellite, and the measurement and control transponder 1 provided in the embodiment of the present application is suitable for a micro/nano satellite whose measurement and control communication frequency band is a VHF/UHF frequency band, so that the controlled satellite in the embodiment of the present application is preferably a micro/nano satellite. However, considering that a common satellite has no special limitation condition on the measurement and control communication frequency band, the measurement and control transponder 1 in the embodiment of the present application is also applicable to common satellites other than the micro-nano satellite, and the present application is not limited to a specific satellite type of the controlled satellite.
The following describes in detail a specific work flow of the measurement and control transponder 1 in the embodiment of the present application with reference to a specific structure of the measurement and control transponder 1 shown in fig. 1:
in a specific embodiment, as shown in fig. 1, the measurement and control transponder 1 includes: the system comprises an uplink receiving channel module 10, a downlink transmitting channel module 11, a main control module 12, an interface module 13, an open collector module 14, a clock module 15 and a power module 16;
specifically, the uplink receiving channel module 10 receives a remote control radio frequency signal sent by the satellite-borne antenna 2, wherein the remote control radio frequency signal is a radio interrogation signal which is sent by the ground control center through the satellite-borne antenna 2 and is specific to the measurement and control transponder 1, and the remote control radio frequency signal belongs to an analog signal; the communication frequency band of the remote control radio frequency signal is a Very High Frequency (VHF) frequency band, namely the frequency band range of the remote control radio frequency signal is between 30 and 300 MHz;
the uplink receiving channel module 10 responds to the received remote control radio frequency signal, and performs first signal processing on the remote control radio frequency signal to obtain a remote control digital signal corresponding to the remote control radio frequency signal; and sends the remote control digital signal to the main control module 12; wherein, the remote control digital signal belongs to the digital signal;
the main control module 12 receives the remote control digital signal sent by the uplink receiving channel module 10, and sends the remote control digital signal to the interface module 13 in response to the received remote control digital signal;
the interface module 13 receives the remote control digital signal sent by the main control module 12, responds to the received remote control digital signal, and sends the remote control digital signal to the satellite borne computer 3; the on-board computer 3 generates a telemetering signal for the remote control digital signal in response to the received remote control digital signal, and feeds back the generated telemetering signal to the interface module 13; wherein the telemetry signal is a signal for characterizing an operating state of the controlled satellite; the interface module 13 receives the telemetering signal fed back by the spaceborne computer 3 and sends the telemetering signal to the main control module 12;
the main control module 12 receives the telemetry signal fed back by the interface module 13 and sends the telemetry signal to the downlink transmission channel module 11;
the downlink transmitting channel module 11 is used for receiving the telemetering signal sent by the main control module 12, responding to the received telemetering signal, and performing second signal processing on the telemetering signal to obtain a telemetering radio-frequency signal corresponding to the telemetering signal; sending the remote measuring radio frequency signal as a response signal aiming at the remote control radio frequency signal to the satellite-borne antenna 2; the remote measuring radio frequency signal belongs to an analog signal, and the communication frequency band to which the remote measuring radio frequency signal belongs is an ultrahigh frequency (UHF) frequency band; i.e. the frequency band range of the telemetry radio frequency signal is between 300-3000 mhz.
Through the specific working process, the measurement and control transponder 1 can receive the remote control radio frequency signal of the VHF frequency band from the ground control center forwarded by the satellite-borne antenna 2, the measurement and control transponder 1 responds to the received remote control radio frequency signal and sends the remote measurement radio frequency signal of the UHF frequency band to the satellite-borne antenna 2, the remote measurement radio frequency signal is a response signal made by the measurement and control transponder 1 aiming at the remote control radio frequency signal, and the satellite-borne antenna 2 forwards the received response signal to the ground control center. The measurement and control transponder 1 establishes a satellite-ground link between the controlled satellite and the ground control center in such a way, and realizes the functions of remote control, remote measurement and the like of the controlled satellite by the ground control center.
Further, when the measurement and control transponder 1 operates according to the above working process, the main control module 12 may further send a control signal to the open collector module 14, and the open collector module 14 sends a control instruction corresponding to the control signal to at least one satellite borne device 5 in response to the control signal sent by the main control module 12, so as to control the satellite borne device 5 to execute the control instruction; wherein the control signal comprises at least: a power-on control signal and a power-off control signal; that is, the open collector module 14 may at least send a power-on control instruction and a power-off control instruction to the satellite borne equipment 5 to control the on/off of the satellite borne equipment 5; the specific content and type of the control signal and the control command are not limited in this application.
In addition to the above working process, when the measurement and control transponder 1 works, the clock module 15 in the measurement and control transponder 1 may send a reference clock signal to the uplink receiving channel module 10, the main control module 12, and the downlink transmitting channel module 11, respectively; when sending the reference clock signal, the clock module 15 may send the reference clock signal with the same frequency to the uplink receiving channel module 10, the main control module 12, and the downlink transmitting channel module 11, or may send the reference clock signal with different frequencies, in this embodiment of the present application, preferably, the reference clock signal with the same frequency may be sent;
a power module 16 in the measurement and control transponder 1 is respectively connected with the satellite-borne power supply 4 and the satellite-borne computer 3; the satellite-borne power supply 4 outputs a voltage signal to the power supply module 16 to supply power to the power supply module 16; the satellite borne computer 3 is used for sending a control instruction to the power supply module 16 and controlling the on-off of the power supply module 16; the power supply module 16 receives the voltage signal output by the satellite-borne power supply 4, converts the voltage signal into a working voltage required by each module in the measurement and control transponder 1 by using the voltage signal, and supplies power to the uplink receiving channel module 10, the downlink transmitting channel module 11, the main control module 12, the interface module 13, the open collector module 14 and the clock module 15.
1. The following describes in detail a specific work flow of the uplink receiving channel module 10 in the measurement and control transponder 1 with reference to a specific structure of the uplink receiving channel module 10 shown in fig. 2:
as shown in fig. 2, the uplink receiving channel module 10 includes: the receiving filter 100, the first amplifying module 101, the second amplifying module 102, the first local oscillator module 103, the down-conversion module 104, the first processing module 105, the second processing module 106, and the uplink input/output buffer module 107, wherein the first amplifying module 101, the second amplifying module 102, the first local oscillator module 103, the down-conversion module 104, the first processing module 105, the second processing module 106, and the uplink input/output buffer module 107 are integrally distributed on the integrated receiving chip 108; preferably, the PCB card size of the integrated receiving chip 108 is 90mm × 94 mm.
Specifically, the receiving filter 100 receives a remote control radio frequency signal sent by the satellite antenna 2, performs filtering processing on the remote control radio frequency signal, and sends the remote control radio frequency signal after the filtering processing to the first amplification module 101 as a first remote control radio frequency signal; wherein, preferably, the receiving frequency of the receiving filter 100 is between 137 and 160 mhz;
the first amplification module 101 is used for responding to the received first remote control radio frequency signal, performing low-noise amplification on the first remote control radio frequency signal, and sending the first remote control radio frequency signal subjected to low-noise amplification to the second amplification module 102 as a second remote control radio frequency signal;
the second amplifying module 102, in response to the received second remote control radio frequency signal, performs automatic gain control AGC amplification on the second remote control radio frequency signal, and sends the second remote control radio frequency signal amplified by the automatic gain control AGC as a third remote control radio frequency signal to the down-conversion module 104;
the first local oscillation module 103 receives a first reference clock signal sent by the clock module 15, and generates a first local oscillation signal based on the first reference clock signal; sending the generated first local oscillation signal to a down-conversion module 104; wherein, the first reference clock signal is a reference clock signal sent by the clock module 15 to the uplink receiving channel module 10;
a down-conversion module 104, configured to perform down-conversion processing on a mixed signal of the third remote control radio frequency signal and the first local oscillator signal in response to the received third remote control radio frequency signal and the first local oscillator signal, so as to obtain a fourth remote control radio frequency signal; wherein the frequency band range of the fourth remote control radio frequency signal is located in the frequency band range of the low intermediate frequency signal; specifically, the frequency band range of the low-if signal is: 30-3000 khz;
a down-conversion module 104, which performs quadrature decomposition on the fourth remote control radio frequency signal, divides the quadrature-decomposed in-phase component and quadrature component into two paths, and specifically sends the in-phase component of the fourth remote control radio frequency signal to a first processing module 105; sending the quadrature component of the fourth remote control rf signal to a second processing module 106;
the first processing module, in response to the received in-phase component of the fourth remote control radio frequency signal, sequentially performs low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the in-phase component of the fourth remote control radio frequency signal, and sends a result of the decoding and descrambling processing to the uplink input/output buffer module 107 as a first remote control digital signal;
the second processing module, in response to the received quadrature component of the fourth remote control radio frequency signal, sequentially performs low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the quadrature component of the fourth remote control radio frequency signal, and sends a result of the decoding and descrambling processing to the uplink input and output buffer module 107 as a second remote control digital signal;
the uplink input/output buffer module 107 performs merging processing on the received first remote control digital signal and the second remote control digital signal, and sends a result of the merging processing to the main control module 12 as the remote control digital signal.
Preferably, fig. 3 shows a schematic structural diagram of the first processing module 105, as shown in fig. 3: a first processing module 105 comprising: a first low-pass filtering unit 1050, a first analog-to-digital converting unit 1051, a first demodulating unit 1052 and a first decoding and descrambling unit 1053; the first low-pass filtering unit 1050, the first analog-to-digital converting unit 1051, the first demodulating unit 1052 and the first decoding and descrambling unit 1053 are connected in a serial structure;
a first low-pass filtering unit 1050, configured to perform low-pass filtering on an in-phase component of the fourth remote control radio frequency signal, and send a result of the low-pass filtering to the first analog-to-digital converting unit 1051;
a first analog-to-digital conversion unit 1051, configured to perform analog-to-digital conversion on the received low-pass filtering result, and send the analog-to-digital conversion result to the first demodulation unit 1052;
a first demodulation unit 1052, configured to perform demodulation processing on a received analog-to-digital conversion processing result, and send the demodulation processing result to the first decoding and descrambling unit 1053;
a first decoding and descrambling unit 1053, configured to perform decoding and descrambling processing on the received demodulation processing result, check the decoding and descrambling processing result, and send the decoding and descrambling processing result that passes the check to the uplink input/output buffer module 107 as a first remote control digital signal.
Preferably, fig. 4 shows a schematic structural diagram of the second processing module 106, as shown in fig. 6: a second processing module 106, comprising: a second low-pass filtering unit 1060, a second analog-to-digital converting unit 1061, a second demodulating unit 1062, and a second decoding and descrambling unit 1063; the second low-pass filtering unit 1060, the second analog-to-digital converting unit 1061, the second demodulating unit 1062, and the second descrambling unit 1063 are connected in series;
it should be noted that the structure and the work flow of the second processing module 106 are the same as those of the first processing module 105, and are not described herein again.
2. The following describes in detail a specific work flow of the downlink transmission channel module 11 in the measurement and control transponder 1, with reference to the specific structure of the downlink transmission channel module 11 shown in fig. 5:
as shown in fig. 5, the downlink transmit channel module 11 includes: a downlink input/output buffer module 110, a third processing module 111, a fourth processing module 112, a second local oscillator module 113, an up-conversion module 114, a band-pass filter 115, a power amplifier module 116, and an isolator 117; the downlink input/output buffer module 110, the third processing module 111, the fourth processing module 112, the second local oscillator module 113, and the up-conversion module 114 are integrated and distributed on the integrated transmitting chip 118; preferably, the PCB board size of the integrated transmitting chip 118 is 90mm × 94 mm.
Specifically, the downlink input/output buffer module 110, in response to the received telemetry signal sent by the main control module 12, performs orthogonal decomposition on the telemetry signal to obtain an in-phase component and an orthogonal component of the telemetry signal; sending the in-phase component of the telemetry signal as a first telemetry signal to a third processing module 111; sending the quadrature component of the telemetry signal as a second telemetry signal to a fourth processing module 112;
the third processing module 111, in response to the received first telemetry signal, sequentially performs framing processing, encoding processing, scrambling processing, and modulation processing on the first telemetry signal, and sends a result of the modulation processing as a third telemetry signal to the up-conversion module 114;
the fourth processing module 112, in response to the received second telemetry signal, sequentially performs framing, encoding, scrambling, and modulating on the second telemetry signal, and sends a result of the modulating as a fourth telemetry signal to the up-conversion module 114;
the second local oscillator module 113 receives a second reference clock signal sent by the clock module 15, and generates a second local oscillator signal based on the second reference clock signal; and send the generated second local oscillator signal to the up-conversion module 114; wherein, the second reference clock signal is the reference clock signal sent by the clock module 15 to the downlink transmit channel module 11;
an up-conversion module 114, configured to perform, in response to the received third telemetry signal, the fourth telemetry signal, and the second local oscillator signal, up-conversion processing on a mixed signal of the third telemetry signal, the fourth telemetry signal, and the second local oscillator signal, and send a result of the up-conversion processing to a band-pass filter 115 as a first telemetry radio frequency signal; the first telemetry radio frequency signal belongs to a communication frequency band which is an ultrahigh frequency (UHF) frequency band; namely, the frequency band range corresponding to the first telemetering radio frequency signal is 300-3000 MHz; the band-pass filter 115 is used for responding to the received first telemetering radio-frequency signal, performing band-pass filtering processing on the first telemetering radio-frequency signal, and sending a result of the band-pass filtering processing to the power amplification module 116 as a second telemetering radio-frequency signal;
the power amplification module 116, which is used for responding to the received second telemetry radio frequency signal, performing power amplification on the second telemetry radio frequency signal, and sending a power amplification result as a third telemetry radio frequency signal to the isolator 117; wherein the third telemetry radio frequency signal has a power of at least 0.5 watts;
the isolator 117 responds to the received third telemetering radio frequency signal, sends the third telemetering radio frequency signal as the telemetering radio frequency signal to the satellite-borne antenna 2, and prevents the telemetering radio frequency signal from returning to the power amplifier module 116 in the sending process, so that self-excitation or damage of the power amplifier module 116 caused by the fact that the telemetering radio frequency signal returns to the power amplifier module 116 is avoided. Preferably, the transmission frequency of the telemetry radio frequency signal is: 400-525 mhz.
Preferably, fig. 6 shows a schematic structural diagram of the third processing module 111, and as shown in fig. 6, the third processing module 111 includes: a first group frame unit 1110, a first encoding unit 1111, a first scrambling unit 1112, and a first modulation unit 1113; wherein the first group frame unit 1110, the first coding unit 1111, the first scrambling unit 1112, and the first modulation unit 1113 are connected by a serial structure;
specifically, the first framing unit 1110 is configured to perform framing processing on the received first telemetry signal, and send a result of the framing processing to the first encoding unit 1111;
a first encoding unit 1111, configured to perform encoding processing on a received result of the framing processing, and send the result of the encoding processing to the first scrambling unit 1112;
a first scrambling unit 1112, configured to perform scrambling processing on a received result of the encoding processing, and send the result of the scrambling processing to the first modulating unit 1113;
a first modulation unit 1113, configured to perform modulation processing on the received scrambling processing result, and send the modulation processing result to the up-conversion module 114 as the third telemetry signal.
Preferably, fig. 7 shows a schematic structural diagram of the fourth processing module 112, and as shown in fig. 7, the fourth processing module 112 includes: a second group frame unit 1120, a second coding unit 1121, a second scrambling unit 1122, and a second modulation unit 1123; wherein, the second group frame unit 1120, the second coding unit 1121, the second scrambling unit 1122 and the second modulation unit 1123 are connected in a serial structure;
it should be noted that the structure and the work flow of the fourth processing module 112 are the same as those of the third processing module 111, and are not described herein again.
3. It should be noted that, as an alternative embodiment, in order to reduce the hardware cost of the measurement and control transponder 1, it is preferable to use an ARM (Advanced Risc Machines) module as the main control module 12.
4. As for the interface module 13, preferably, the interface module 13 may include: RS422 interface circuit and CAN bus circuit;
the RS422 interface circuit responds to the remote control digital signal sent by the main control module 12 and sends the remote control digital signal to the spaceborne computer 3; receiving the telemetry signal fed back by the spaceborne computer 3, and sending the telemetry signal to the main control module 12;
and the CAN bus circuit is used for receiving the satellite interaction data sent by the satellite-borne computer 3 and sending the satellite interaction data to the main control module 12.
It should be noted that, the remote control and remote measurement signal transmission between the measurement and control transponder 1 and the spaceborne computer 3 is completed through the RS422 interface circuit; satellite data information interaction between the measurement and control transponder 1 and the satellite-borne computer 3 is completed through a CAN bus receiving circuit; therefore, satellite data information interaction and telemetry signal transmission do not interfere with each other within the interface module 13. Since the RS422 interface circuit and the CAN bus circuit are typical interface circuits in the art, detailed description of specific structural circuits of the RS422 interface circuit and the CAN bus circuit is omitted in this application.
5. As for the Open Collector module 14, as an optional embodiment, the Open Collector module 14 sends a control instruction to the at least one satellite borne device 5 through a 40-channel OC (Open Collector) signal to control a switch of the at least one satellite borne device 5; preferably, the control command sent by the open collector module 14 may be a pulse command corresponding to a negative 160ms pulse.
6. As for the clock module 15, it is preferable that the clock module 15 includes at least: a temperature compensation crystal oscillator and a clock distribution chip;
specifically, the temperature compensation crystal oscillator is configured to generate a clock signal corresponding to a standard frequency according to the standard frequency corresponding to the temperature compensation crystal oscillator within a working temperature range corresponding to the temperature compensation crystal oscillator; and sending the clock signal to the clock distribution chip; wherein the frequency value of the standard frequency at least comprises: 32 MHz; the difference value of the frequency value of the clock signal and the frequency value of the standard frequency is positioned in the frequency deviation range corresponding to the temperature compensation crystal oscillator;
illustratively, a temperature compensated crystal oscillator with a standard frequency of 32 MHz may be used, and when the temperature compensated crystal oscillator is operated in a temperature range of [ -40 °, +85 ° ], the corresponding frequency deviation range of the temperature compensated crystal oscillator is [ -1ppm, +1ppm ]; when the temperature compensation crystal oscillator works in a temperature range of-10 degrees and +60 degrees, the corresponding frequency deviation range of the temperature compensation crystal oscillator is-0.76 ppm and +0.76 ppm; wherein, ppm is the basic unit of the crystal oscillator, and represents the part per million of the frequency deviation of the crystal oscillator from the standard frequency;
the clock distribution chip is used for responding to the received clock signals and distributing the clock signals into 3 paths of reference clock signals according to preset clock distribution conditions; and sends the allocated 3 paths of reference clock signals to the uplink receiving channel module 10, the main control module 12 and the downlink transmitting channel module 13 (refer to fig. 1).
7. The following describes in detail a specific work flow of the power module 16 in the embodiment of the present application with reference to a specific structure of the power module 16 shown in fig. 8:
as shown in fig. 8, the power supply module 16 includes: a current limiting protection circuit 160, a relay 161, a surge suppression circuit 162, an EMI filter circuit 163, a collection circuit 164, and a voltage converter 165;
the current-limiting protection circuit 160 receives a voltage signal output by the satellite-borne power supply 4, performs current-limiting protection processing on the voltage signal, and sends the voltage signal after the current-limiting protection processing to the relay 161 as a first voltage signal;
the relay 161 is configured to respond to a switch control instruction sent by the satellite borne computer 3, and send the received first voltage signal to the surge suppression circuit 162 under the condition that the switch control instruction is a power-on instruction;
a surge suppression circuit 162, which performs surge suppression processing on the first voltage signal in response to the received first voltage signal, and sends the surge-suppressed first voltage signal to the EMI filter circuit 163 as a second voltage signal;
the EMI filter circuit 163, in response to the received second voltage signal, performs filtering processing on the second voltage signal, and sends the second voltage signal after filtering processing to the acquisition circuit 164;
the acquisition circuit 164, in response to the received second voltage signal, performs voltage acquisition on the second voltage signal according to a preset voltage acquisition range, and sends a voltage acquisition result as a third voltage signal to the voltage converter 165; wherein the voltage value of the third voltage signal is within the voltage acquisition range;
the voltage converter 165, in response to the received third voltage signal, performs voltage conversion processing on the third voltage signal according to a working voltage value corresponding to the module to be powered, and sends the third voltage signal after the voltage conversion processing as a target voltage signal to the module to be powered; wherein, the voltage value of the target voltage signal is the working voltage value, and the module to be powered includes: the device comprises an uplink receiving channel module 10, a downlink transmitting channel module 11, a main control module 12, an interface module 13, an open collector module 14 and a clock module 15.
Example two
Referring to the schematic structural diagram of the measurement and control response system shown in fig. 1, as shown in fig. 1, the measurement and control response system is mounted on the controlled satellite, and the measurement and control response system includes: the system comprises a measurement and control transponder 1, a satellite-borne antenna 2, a satellite-borne computer 3, a satellite-borne power supply 4 and at least one satellite-borne device 5;
the system comprises a measurement and control transponder 1, a satellite antenna 2 and a signal processing module, wherein the measurement and control transponder is used for receiving a remote control radio frequency signal sent by the satellite antenna 2 and carrying out first signal processing on the remote control radio frequency signal to obtain a remote control digital signal corresponding to the remote control radio frequency signal; and sends the remote control digital signal to the satellite borne computer 3; the communication frequency band to which the remote control radio frequency signal belongs is a Very High Frequency (VHF) frequency band;
receiving a telemetering signal fed back by the spaceborne computer 3 aiming at the remote control digital signal, and carrying out second signal processing on the telemetering signal to obtain a telemetering radio frequency signal corresponding to the telemetering signal; sending the remote measuring radio frequency signal as a response signal aiming at the remote control radio frequency signal to a satellite-borne antenna 2; the communication frequency band to which the telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band; the telemetry radio frequency signal is used for representing the working state of the controlled satellite;
the on-board computer 3 is used for responding to the received remote control digital signal, generating the remote measuring signal and sending the remote measuring signal to the measurement and control answering machine 1; wherein the telemetry signal is a signal for characterizing an operating state of the controlled satellite;
the satellite-borne power supply 4 is used for sending a voltage signal to the measurement and control transponder 1 and supplying power to the measurement and control transponder 1;
the satellite-borne equipment 5 is used for receiving a control instruction sent by the measurement and control transponder 1 and responding to the received control instruction to execute a target task corresponding to the control instruction; wherein the control instructions at least comprise: a power-on control command and a power-off control command.
It should be noted that the specific structure of the measurement and control transponder 1 is the same as that described in the first embodiment, and is not described herein again.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus once an item is defined in one figure, it need not be further defined and explained in subsequent figures, and moreover, the terms "first", "second", "third", etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the present disclosure, which should be construed in light of the above teachings. Are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (8)

1. A measurement and control transponder loaded on a controlled satellite is characterized in that the measurement and control transponder is applied to a measurement and control transponder system; the measurement and control response system is mounted on the controlled satellite, and comprises: the system comprises a measurement and control transponder, a satellite-borne antenna, a satellite-borne computer, a satellite-borne power supply and at least one satellite-borne device; the measurement and control transponder comprises: the device comprises an uplink receiving channel module, a downlink transmitting channel module, a main control module, an interface module, an open collector module, a clock module and a power supply module;
the uplink receiving channel module is used for receiving a remote control radio frequency signal sent by the satellite-borne antenna and performing first signal processing on the remote control radio frequency signal to obtain a remote control digital signal corresponding to the remote control radio frequency signal; and sending the remote control digital signal to the main control module; the communication frequency band to which the remote control radio frequency signal belongs is a Very High Frequency (VHF) frequency band;
the main control module is used for responding to the received remote control digital signal and sending the remote control digital signal to the interface module; receiving the telemetry signal sent by the interface module, and sending the telemetry signal to the downlink transmitting channel module;
the downlink transmitting channel module is used for responding to the received telemetry signal and carrying out second signal processing on the telemetry signal to obtain a telemetry radio frequency signal corresponding to the telemetry signal; sending the telemetry radio frequency signal to the satellite-borne antenna as a response signal aiming at the remote control radio frequency signal; the communication frequency band to which the telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band; the telemetry radio frequency signal is used for representing the working state of the controlled satellite;
the interface module is used for responding to the received remote control digital signal and sending the remote control digital signal to the satellite-borne computer;
receiving the telemetry signal fed back by the spaceborne computer, and sending the telemetry signal to the main control module;
the collector open-circuit module is used for responding to a control signal sent by the main control module and sending a control instruction corresponding to the control signal to the at least one satellite-borne device according to the control signal; wherein the control signal comprises at least: a power-on control signal and a power-off control signal;
the clock module is configured to send a reference clock signal to the uplink receiving channel module, the main control module, and the downlink transmitting channel module respectively;
the power supply module is used for receiving a voltage signal output by the satellite-borne power supply and supplying power to the uplink receiving channel module, the downlink transmitting channel module, the main control module, the interface module, the collector open-circuit module and the clock module by using the voltage signal;
the uplink receiving channel module comprises: the receiving filter, a first amplifying module, a second amplifying module, a first local oscillator module, a down-conversion module, a first processing module, a second processing module and an uplink input and output cache module, wherein the first amplifying module, the second amplifying module, the first local oscillator module, the down-conversion module, the first processing module, the second processing module and the uplink input and output cache module are integrally distributed on an integrated receiving chip;
the receiving filter is used for receiving the remote control radio frequency signal, filtering the remote control radio frequency signal, and sending the remote control radio frequency signal after filtering as a first remote control radio frequency signal to the first amplifying module;
the first amplification module is used for responding to the received first remote control radio frequency signal, performing low-noise amplification on the first remote control radio frequency signal, and sending the first remote control radio frequency signal subjected to low-noise amplification to the second amplification module as a second remote control radio frequency signal;
the second amplifying module is configured to perform automatic gain control AGC amplification on the second remote control radio frequency signal in response to the received second remote control radio frequency signal, and send the second remote control radio frequency signal amplified by the automatic gain control AGC as a third remote control radio frequency signal to the down-conversion module;
the first local oscillator module is configured to receive a first reference clock signal sent by the clock module, and generate a first local oscillator signal based on the first reference clock signal; sending the generated first local oscillation signal to the down-conversion module;
the down-conversion module is configured to perform down-conversion processing on a mixed signal of the third remote control radio frequency signal and the first local oscillator signal in response to the received third remote control radio frequency signal and the received first local oscillator signal, so as to obtain a fourth remote control radio frequency signal;
performing quadrature decomposition on the fourth remote control radio frequency signal, and sending an in-phase component of the fourth remote control radio frequency signal to the first processing module;
sending the quadrature component of the fourth remote control radio frequency signal to the second processing module;
the first processing module is configured to, in response to the received in-phase component of the fourth remote control radio frequency signal, sequentially perform low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the in-phase component of the fourth remote control radio frequency signal, and send a result of the decoding and descrambling processing to the uplink input/output cache module as a first remote control digital signal;
the second processing module is configured to, in response to the received quadrature component of the fourth remote control radio frequency signal, sequentially perform low-pass filtering processing, analog-to-digital conversion processing, demodulation processing, and decoding and descrambling processing on the quadrature component of the fourth remote control radio frequency signal, and send a result of the decoding and descrambling processing to the uplink input/output cache module as a second remote control digital signal;
the uplink input/output buffer module is configured to perform merging processing on the received first remote control digital signal and the received second remote control digital signal, and send a result of the merging processing to the main control module as the remote control digital signal;
the downlink transmitting channel module comprises: the system comprises a downlink input/output cache module, a third processing module, a fourth processing module, a second local oscillator module, an up-conversion module, a band-pass filter, a power amplifier module and an isolator; the downlink input/output cache module, the third processing module, the fourth processing module, the second local oscillator module and the up-conversion module are integrated and distributed on an integrated transmitting chip;
the downlink input/output buffer module is used for responding to the received telemetry signal and carrying out quadrature decomposition on the telemetry signal to obtain an in-phase component and a quadrature component of the telemetry signal;
sending an in-phase component of the telemetry signal to the third processing module as a first telemetry signal;
transmitting the quadrature component of the telemetry signal as a second telemetry signal to the fourth processing module;
the third processing module is configured to, in response to the received first telemetry signal, sequentially perform framing processing, encoding processing, scrambling processing, and modulation processing on the first telemetry signal, and send a result of the modulation processing as a third telemetry signal to the up-conversion module;
the fourth processing module is configured to, in response to the received second telemetry signal, sequentially perform framing, encoding, scrambling, and modulating on the second telemetry signal, and send a result of the modulating as a fourth telemetry signal to the up-conversion module;
the second local oscillator module is configured to receive a second reference clock signal sent by the clock module, and generate a second local oscillator signal based on the second reference clock signal; sending the generated second local oscillation signal to the up-conversion module; the up-conversion module is configured to perform up-conversion processing on a mixed signal of the third telemetry signal, the fourth telemetry signal and the second local oscillator signal in response to the received third telemetry signal, the fourth telemetry signal and the second local oscillator signal, and send a result of the up-conversion processing to the band-pass filter as a first telemetry radio frequency signal; the communication frequency band to which the first telemetering radio-frequency signal belongs is an ultrahigh frequency (UHF) frequency band;
the band-pass filter is used for responding to the received first telemetering radio-frequency signal, performing band-pass filtering processing on the first telemetering radio-frequency signal, and sending a result of the band-pass filtering processing to the power amplification module as a second telemetering radio-frequency signal;
the power amplification module is used for responding to the received second telemetering radio-frequency signal, performing power amplification on the second telemetering radio-frequency signal, and sending a power amplification result serving as a third telemetering radio-frequency signal to the isolator; wherein the third telemetry radio frequency signal has a power of at least 0.5 watts;
the isolator is used for responding to the received third telemetering radio-frequency signal, sending the third telemetering radio-frequency signal to the satellite-borne antenna as the telemetering radio-frequency signal, and preventing the telemetering radio-frequency signal from returning to the power amplifier module in the sending process.
2. The measurement and control transponder according to claim 1, wherein the interface module comprises at least: RS422 interface circuit and CAN bus circuit;
the RS422 interface circuit is used for responding to the remote control digital signal sent by the main control module and sending the remote control digital signal to the spaceborne computer;
receiving the telemetry signal fed back by the spaceborne computer, and sending the telemetry signal to the main control module;
the CAN bus circuit is used for receiving satellite interaction data sent by the satellite-borne computer and sending the satellite interaction data to the main control module.
3. The measurement and control transponder according to claim 1, wherein the clock module comprises at least: a temperature compensation crystal oscillator and a clock distribution chip;
the temperature compensation crystal oscillator is used for generating a clock signal corresponding to a standard frequency according to the standard frequency corresponding to the temperature compensation crystal oscillator within a working temperature range corresponding to the temperature compensation crystal oscillator; sending the clock signal to the clock distribution chip; wherein the frequency value of the standard frequency at least comprises: 32 MHz; the difference value of the frequency value of the clock signal and the frequency value of the standard frequency is positioned in the frequency deviation range corresponding to the temperature compensation crystal oscillator;
the clock distribution chip is used for responding to the received clock signals and distributing the clock signals into 3 paths of reference clock signals according to preset clock distribution conditions; and respectively sending the distributed 3 paths of reference clock signals to the uplink receiving channel module, the main control module and the downlink transmitting channel module.
4. The measurement and control transponder according to claim 1, wherein the power module comprises: the device comprises a current-limiting protection circuit, a relay, a surge suppression circuit, an EMI filter circuit, an acquisition circuit and a voltage converter;
the current-limiting protection circuit is used for receiving a voltage signal output by the satellite-borne power supply, performing current-limiting protection processing on the voltage signal, and sending the voltage signal subjected to current-limiting protection processing to the relay as a first voltage signal;
the relay is used for responding to a switch control instruction sent by the satellite-borne computer and sending the received first voltage signal to the surge suppression circuit under the condition that the switch control instruction is a starting instruction;
the surge suppression circuit is used for responding to the received first voltage signal, performing surge suppression processing on the first voltage signal, and sending the first voltage signal subjected to the surge suppression processing to the EMI filter circuit as a second voltage signal;
the EMI filter circuit is used for responding to the received second voltage signal, performing filter processing on the second voltage signal, and sending the second voltage signal after the filter processing to the acquisition circuit;
the acquisition circuit is used for responding to the received second voltage signal, carrying out voltage acquisition on the second voltage signal according to a preset voltage acquisition range, and sending a voltage acquisition result as a third voltage signal to the voltage converter; wherein the voltage value of the third voltage signal is within the voltage acquisition range;
the voltage converter is used for responding to the received third voltage signal, performing voltage conversion processing on the third voltage signal according to a working voltage value corresponding to a module to be powered, and sending the third voltage signal after the voltage conversion processing to the module to be powered as a target voltage signal; wherein, the voltage value of the target voltage signal is the working voltage value, and the module to be powered includes: the uplink receiving channel module, the downlink transmitting channel module, the main control module, the interface module, the collector open-circuit module and the clock module.
5. The measurement and control transponder according to claim 1, wherein the main control module is further configured to send a first local oscillation control instruction to the uplink receiving channel module, so as to control a local oscillation frequency of the uplink receiving channel module by using the first local oscillation control instruction;
and sending a second local oscillation control instruction to the downlink transmitting channel module so as to control the local oscillation frequency of the downlink transmitting channel module by using the second local oscillation control instruction.
6. The measurement and control transponder according to claim 2, wherein the first processing module comprises: the device comprises a first low-pass filtering unit, a first analog-to-digital conversion unit, a first demodulation unit and a first decoding and descrambling unit; wherein the first low-pass filtering unit, the first analog-to-digital conversion unit, the first demodulation unit and the first decoding and descrambling unit are connected in a serial structure;
the second processing module comprises: the second low-pass filtering unit, the second analog-to-digital conversion unit, the second demodulation unit and the second decoding and descrambling unit; the second low-pass filtering unit, the second analog-to-digital converting unit, the second demodulating unit and the second decoding and descrambling unit are connected in a serial structure.
7. The measurement and control transponder according to claim 3, wherein the third processing module comprises: the device comprises a first group of frame units, a first coding unit, a first scrambling unit and a first modulation unit; wherein the first group of frame units, the first encoding unit, the first scrambling unit, and the first modulation unit are connected by a serial structure;
the fourth processing module comprises: the second group of frame units, the second coding unit, the second scrambling unit and the second modulation unit; wherein the second group of frame units, the second encoding unit, the second scrambling unit, and the second modulation unit are connected by a serial structure.
8. A measurement and control response system loaded on a controlled satellite, wherein the measurement and control response system is loaded on the controlled satellite, and the measurement and control response system comprises: the measurement and control transponder, the on-board antenna, the on-board computer, the on-board power source, and the at least one on-board device of claim 1;
the on-board computer is used for responding to the received remote control digital signal, generating the remote measuring signal and sending the remote measuring signal to the measurement and control answering machine; wherein the telemetry signal is a signal for characterizing an operating state of the controlled satellite;
the satellite-borne power supply is used for sending a voltage signal to the measurement and control transponder and supplying power to the measurement and control transponder;
the at least one satellite-borne device is used for receiving the control instruction sent by the measurement and control transponder and responding to the received control instruction to execute a target task corresponding to the control instruction; wherein the control instructions at least comprise: a power-on control command and a power-off control command.
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