Measurement, control and data transmission integrated relay satellite ground station system based on Q / V frequency band

Abstract

The invention provides a measurement and control data transmission integrated relay satellite ground station system based on a Q / V frequency band, and relates to the technical field of relay satellite communication. Comprising a monitoring system, a measurement and control baseband, a measurement and control intermediate frequency matrix, a remote control up-converter, a data transmission data storage and distribution system, a data transmission baseband, a data transmission intermediate frequency matrix, an uplink data transmission up-converter, an input combination network, a V frequency band power amplifier, an integrated Q / V antenna, a Q frequency band low noise amplifier, a Q frequency band distribution network, a telemetering down-converter and a downlink data transmission down-converter. Wherein the monitoring system monitors and controls each device in the ground station system, and forwards measurement and control data between the superior control center and the measurement and control baseband; the data transmission data storage and distribution system is used for storing uplink and downlink data transmission data and forwarding the uplink and downlink data transmission data between the user center and the data transmission baseband; the integrated Q / V antenna comprises a Q-frequency-band feed element and a V-frequency-band feed element, signals are transmitted through the V-frequency-band feed element, and the signals are received through the Q-frequency-band feed element.

Description

Technical Field

[0001] This disclosure relates to the field of relay satellite communication technology, specifically to a relay satellite ground station system based on the Q / V band that integrates telemetry, tracking, and command (TT&C) and data transmission. Background Technology

[0002] Relay satellite communication, as an effective space-based telemetry, tracking, and command (TT&C) method, has gradually expanded from military to commercial applications in recent years, especially in the commercial aerospace sector. Ground station systems, as key nodes in relay satellite communication, undertake the TT&C tasks of relay satellites, as well as the ground-based transmission and reception of user relay data.

[0003] Traditional relay satellite ground station systems are built using the Ka band. However, with the scarcity of Ka band resources, the traditional Ka band-based relay satellite ground station system design has many limitations in use and is no longer suitable for commercial applications.

[0004] There is currently no effective technical solution to the problem of limited Ka-band resources in related technologies, which leads to many restrictions on the use of relay satellite ground station systems. Summary of the Invention

[0005] The main purpose of this disclosure is to provide a Q / V band-based integrated telemetry, tracking, and command (TT&C) and data transmission relay satellite ground station system to solve the problem of limited Ka band resources in related technologies, which leads to many restrictions on the use of relay satellite ground station systems.

[0006] To achieve the above objectives, the first aspect of this disclosure provides a Q / V band-based integrated telemetry, measurement and control (TT&C) and data transmission relay satellite ground station system, including a monitoring system, a first TT&C baseband, a TT&C intermediate frequency matrix, a first remote control upconverter, a data transmission data storage and distribution system, a first data transmission baseband, a data transmission intermediate frequency matrix, a first uplink data transmission upconverter, an input combination network, a first V-band power amplifier, and an integrated Q / V antenna; The monitoring system is used to monitor and control various devices within the ground station system, interact with the superior control center, forward remote control data between the superior control center and the first telemetry and control baseband, receive control commands sent by the superior control center, and control the operation of devices within the ground station system according to the control commands. The first measurement and control baseband is connected to the monitoring system and the measurement and control intermediate frequency matrix respectively. It is used to generate remote control intermediate frequency signals based on remote control data and send the remote control intermediate frequency signals to the measurement and control intermediate frequency matrix. The measurement and control intermediate frequency matrix is ​​connected to the first measurement and control baseband and the first remote control up-converter respectively. It is used to configure the correspondence between the remote control intermediate frequency signal output port of the first measurement and control baseband and the input port of the first remote control up-converter, and output the remote control intermediate frequency signal to the first remote control up-converter. The first remote control upconverter is connected to the measurement and control intermediate frequency matrix and the input combination network respectively. It is used to upconvert the remote control intermediate frequency signal to the V-band remote control radio frequency signal. The output frequency is adjustable, and the V-band remote control radio frequency signal is output to the input combination network. The data transmission data storage and distribution system is connected to the first data transmission baseband and is used to interact with the user center, forward uplink data transmission data between the user center and the first data transmission baseband, receive uplink data transmission data sent by the user center, store uplink data transmission data and forward it to the first data transmission baseband. The first data transmission baseband is connected to the data transmission data storage and distribution system and the data transmission intermediate frequency matrix, respectively, and is used to generate at least one uplink data transmission intermediate frequency signal based on the uplink data transmission data. The data transmission intermediate frequency matrix is ​​connected to the first data transmission baseband and the first uplink data transmission up-converter, respectively. It is used to configure the correspondence between at least one uplink data transmission intermediate frequency signal output port of the first data transmission baseband and the input port of the first uplink data transmission up-converter, and to send at least one uplink data transmission intermediate frequency signal to at least one first uplink data transmission up-converter. In this case, multiple uplink data transmission intermediate frequency signals are sent to multiple first uplink data transmission up-converters, and one uplink data transmission intermediate frequency signal corresponds one-to-one with one first uplink data transmission up-converter. The first uplink data transmission upconverter is connected to the data transmission intermediate frequency matrix and the input combination network respectively. It is used to upconvert at least one uplink data transmission intermediate frequency signal to a V-band uplink data transmission radio frequency signal. The output frequency is adjustable, and at least one V-band uplink data transmission radio frequency signal is output to the input combination network. An input combination network is connected to the first remote control up-converter, the first uplink data transmission up-converter, and the first V-band power amplifier, respectively. It is used to configure the correspondence between the output port of the first remote control up-converter, the output port of the first uplink data transmission up-converter, and the input port of the first V-band power amplifier, and to simultaneously output one V-band remote control RF signal and at least one V-band uplink data transmission RF signal to the first V-band power amplifier. The first V-band power amplifier is connected to the input combination network and the integrated Q / V antenna respectively. It is used to perform power amplification processing of broadband multi-carrier signals, amplify the power of one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal, and send them to the integrated Q / V antenna at the same time. An integrated Q / V antenna includes a Q-band feed element and a V-band feed element. The feed element is connected to a first V-band power amplifier. The antenna is used to simultaneously transmit one V-band remote control RF signal and at least one V-band uplink data transmission RF signal after processing by the power amplifier.

[0007] Optionally, the first V-band power amplifier is a multi-carrier shared power amplifier based on feedforward linearization, including a carrier cancellation circuit, an error cancellation circuit, a down-conversion unit, an ADC unit, and a DSP unit. The carrier cancellation circuit is used to phase-shift the first multi-carrier signal according to the first phase-shift control signal of the DSP unit, perform power amplification on the phase-shifted first multi-carrier signal to obtain a second multi-carrier signal containing a first nonlinear component error signal, cancel the carrier signal in the second multi-carrier signal with the first multi-carrier signal to obtain the first nonlinear component error signal, and output the second multi-carrier signal and the first nonlinear component error signal to the error cancellation circuit. The first multi-carrier signal includes one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal. The second multi-carrier signal is 180° out of phase with the first multi-carrier signal. An error cancellation circuit is used to phase-shift the first nonlinear component error signal according to the second phase-shift control signal of the DSP unit, perform power amplification on the phase-shifted first nonlinear component error signal to obtain a second nonlinear component error signal, and cancel the first nonlinear component error signal in the second multicarrier signal through the second nonlinear component error signal to obtain a third multicarrier signal, wherein the second nonlinear component error signal is 180° out of phase with the second multicarrier signal; The downconversion unit is used to perform frequency conversion of the high-frequency sampled signal, converting the first multi-carrier signal, the first nonlinear component error signal and the third multi-carrier signal from the V frequency band to the intermediate frequency, and outputting them to the ADC unit; The ADC unit is used to perform analog-to-digital conversion and sample the signal after it has been converted to an intermediate frequency. The DSP unit is used to perform digital signal processing, detect and feedforward control the sampled signal, and output the first phase-shift control signal and the second phase-shift control signal to the carrier cancellation circuit and the error cancellation circuit, respectively, so as to realize feedforward linearization control.

[0008] Furthermore, the carrier cancellation circuit includes a power divider, a first digital phase shifter, a main amplifier, a first coupler, a first attenuator, a second coupler, and a third coupler; A power divider is used to split an input first multicarrier signal into two identical first multicarrier signals, which are then output to a first digital phase shifter and a second coupler, respectively. The first digital phase shifter is used to shift the phase of the first multi-carrier signal according to the first phase shift control signal of the DSP unit, and output the phase-shifted first multi-carrier signal to the main amplifier. The main amplifier is used to amplify the power of the phase-shifted first multicarrier signal to obtain a second multicarrier signal containing a first nonlinear component error signal, and output the second multicarrier signal to the first coupler. The first coupler is used to split one second multicarrier signal into two identical second multicarrier signals, which are output to the first attenuator and the error cancellation circuit, respectively. The first attenuator is used to adjust the amplitude of the second multicarrier signal to be consistent with the amplitude of the first multicarrier signal; The second coupler is used to extract the first multi-carrier signal and output the first multi-carrier signal to the third coupler and the down-conversion unit respectively. The third coupler is used to cancel the carrier signal in the second multi-carrier signal using the first multi-carrier signal to obtain the first nonlinear component error signal, and output the first nonlinear component error signal to the error cancellation circuit.

[0009] Furthermore, the error cancellation circuit includes a fourth coupler, a second digital phase shifter, a second attenuator, an error amplifier, a fifth coupler, and a sixth coupler; The fourth coupler is used to extract the first nonlinear component error signal and output the first nonlinear component error signal to the second digital phase shifter and the downconversion unit respectively. The second digital phase shifter is used to shift the first nonlinear component error signal according to the second phase shift control signal of the DSP unit to obtain the phase-shifted first nonlinear component error signal. The second attenuator is used to adjust the amplitude of the phase-shifted first nonlinear component error signal to match the amplitude of the second multicarrier signal. An error amplifier is used to amplify the power of the phase-shifted first nonlinear component error signal to obtain the second nonlinear component error signal. The fifth coupler is used to cancel the first nonlinear component error signal in the second multicarrier signal using the second nonlinear component error signal to obtain the third multicarrier signal; The sixth coupler is used to extract the third multi-carrier signal, output the third multi-carrier signal to the down-conversion unit, and output the third multi-carrier signal as an output signal.

[0010] Optionally, the number of first uplink data transmission inverters is 1 to 4, corresponding to 1 to 4 uplink data transmission intermediate frequency signals and 1 to 4 V-band uplink data transmission radio frequency signals.

[0011] Optionally, the relay satellite ground station system also includes a second telemetry and control baseband, a second remote control up-converter, a second data transmission baseband, a second uplink data transmission up-converter, a second V-band power amplifier, and a power amplifier switching switch; The second telemetry and control baseband serves as a backup to the first telemetry and control baseband. The connection relationship of the second telemetry and control baseband is the same as that of the first telemetry and control baseband, thus achieving primary and backup redundancy. The second remote-controlled inverter serves as a backup for the first remote-controlled inverter. The connection relationship of the second remote-controlled inverter is the same as that of the first remote-controlled inverter, thus achieving primary and backup redundancy. The second data transmission baseband serves as a backup for the first data transmission baseband. The connection relationship of the second data transmission baseband is the same as that of the first data transmission baseband, thus achieving primary and backup redundancy. The second uplink data transmission inverter serves as a backup to the first uplink data transmission inverter. The connection relationship of the second uplink data transmission inverter is the same as that of the first uplink data transmission inverter, thus achieving primary and backup redundancy. The number of the second uplink data transmission inverter is at least one. The second V-band power amplifier serves as a backup for the first V-band power amplifier. The connection relationship of the second V-band power amplifier is the same as that of the first V-band power amplifier, thus achieving primary and backup redundancy. The power amplifier switching switch is connected to the first V-band power amplifier, the second V-band power amplifier, and the integrated Q / V antenna, respectively, and is used to configure the correspondence between the output ports of the first V-band power amplifier, the output ports of the second V-band power amplifier, and the input ports of the V-band feed element of the integrated Q / V antenna.

[0012] Optionally, the monitoring system includes internal servers, switches, and terminals; The internal servers, switches, and terminals are all redundant, with primary and backup configurations.

[0013] Optionally, the data transmission data storage and distribution system includes internal servers and switches; The internal servers and switches are all redundant, with primary and backup functionality.

[0014] Optionally, the relay satellite ground station system also includes a first Q-band low-noise amplifier, a Q-band distribution network, a first telemetry downconverter, and a first downlink data transmission downconverter; An integrated Q / V antenna is connected to a first Q-band low-noise amplifier via a Q-band feed element. It is also used to simultaneously receive one Q-band telemetry RF signal and at least one Q-band downlink data transmission RF signal via the Q-band feed element, and simultaneously transmit them to the first Q-band low-noise amplifier. The first Q-band low-noise amplifier is connected to the integrated Q / V antenna and the Q-band allocation network, respectively, and is used to perform low-noise amplification processing of broadband multi-carrier Q-band signals, while simultaneously performing low-noise amplification of one Q-band telemetry RF signal and at least one Q-band downlink data transmission RF signal. The Q-band allocation network is connected to the first Q-band low-noise amplifier, the first telemetry downconverter, and the first downlink data transmission downconverter, respectively. It is used to configure the correspondence between the output port of the first Q-band low-noise amplifier and the input ports of the first telemetry downconverter and the first downlink data transmission downconverter, respectively. It sends one Q-band telemetry RF signal to the first telemetry downconverter and at least one Q-band downlink data transmission RF signal to at least one first downlink data transmission downconverter. The Q-band downlink data transmission RF signal corresponds one-to-one with one first downlink data transmission downconverter. The first telemetry downconverter is connected to the Q-band distribution network and the telemetry and control intermediate frequency matrix, respectively. It is used to downconvert the Q-band telemetry radio frequency signal to the telemetry intermediate frequency signal. The input frequency point is adjustable, and the telemetry intermediate frequency signal is sent to the telemetry and control intermediate frequency matrix. The measurement and control intermediate frequency matrix is ​​also connected to the first telemetry downconverter and is also used to configure the correspondence between the output port of the first telemetry downconverter and the telemetry intermediate frequency signal input port of the first measurement and control baseband, and to send the received telemetry intermediate frequency signal to the first measurement and control baseband. The first measurement and control baseband is also used to process telemetry intermediate frequency signals and send telemetry data to the monitoring system; The monitoring system is also used to forward telemetry data between the upper-level control center and the first telemetry and control baseband, receive telemetry data, and forward telemetry data to the upper-level control center. The first downlink data transmission downconverter is connected to the Q-band allocation network and the data transmission intermediate frequency matrix, respectively. It is used to downconvert at least one Q-band downlink data transmission RF signal to an intermediate frequency signal to obtain at least one downlink data transmission intermediate frequency signal. The input frequency point is adjustable, and at least one downlink data transmission intermediate frequency signal is sent to the data transmission intermediate frequency matrix. The data transmission intermediate frequency matrix is ​​also connected to the first downlink data transmission downconverter and is also used to configure the correspondence between the output port of the first downlink data transmission downconverter and at least one downlink data transmission intermediate frequency signal input port of the first data transmission baseband, and to send downlink data transmission intermediate frequency signals to the first data transmission baseband. The first data transmission baseband is also used to process the downlink data transmission intermediate frequency signal to obtain downlink data transmission data, and send the downlink data transmission data to the data transmission data storage and distribution system; The data transmission data storage and distribution system is also used to forward downlink data transmission data between the user center and the first data transmission baseband, receive downlink data transmission data, store downlink data transmission data, and forward it to the user center.

[0015] Furthermore, the number of first downlink data transmission downconverters is 1 to 8, corresponding to 1 to 8 channels of Q-band downlink data transmission RF signals and 1 to 8 channels of downlink data transmission IF signals.

[0016] Furthermore, the relay satellite ground station system also includes a second Q-band low-noise amplifier, a second telemetry downconverter, a second downlink data transmission downconverter, and a low-noise amplifier switching switch. The second Q-band low-noise amplifier serves as a backup for the first Q-band low-noise amplifier. The connection relationship of the second Q-band low-noise amplifier is the same as that of the first Q-band low-noise amplifier, thus achieving primary and backup redundancy. The second telemetry down-converter serves as a backup for the first telemetry down-converter. The connection relationship of the second telemetry down-converter is the same as that of the first telemetry down-converter, thus achieving primary and backup redundancy. The second downlink data transmission downconverter serves as a backup for the first downlink data transmission downconverter. The connection relationship of the second downlink data transmission downconverter is the same as that of the first downlink data transmission downconverter, achieving primary and backup redundancy. The number of the second downlink data transmission downconverter is at least one. The low-noise amplifier switching switch is connected to the integrated Q / V antenna and the Q-band low-noise amplifier respectively, and is used to configure the correspondence between the output port of the Q-band feed element of the integrated Q / V antenna and the input ports of the first Q-band low-noise amplifier and the second Q-band low-noise amplifier.

[0017] Furthermore, in the working state, only one of the backup or primary / standby redundant devices is in working state.

[0018] Furthermore, this relay satellite ground station system simultaneously performs uplink remote control, uplink data transmission, downlink telemetry, and downlink data transmission services in the Q / V band. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the architecture of a Q / V band-based telemetry, tracking, and command (TT&C) data transmission integrated relay satellite ground station system provided in this embodiment of the disclosure; Figure 2 This is a schematic diagram of the architecture of a multi-carrier shared power amplifier based on feedforward linearization, provided for an embodiment of this disclosure. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present disclosure, the technical solutions of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present disclosure, and not all embodiments. Based on the embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present disclosure.

[0022] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0023] In this disclosure, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other. This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Relay satellite communication, as an effective space-based telemetry, tracking, and command (TT&C) method, has gradually expanded from military to commercial applications in recent years, especially in the commercial aerospace sector. Ground station systems, as key nodes in relay satellite communication, undertake the TT&C tasks of relay satellites, as well as the ground-based transmission and reception of user relay data.

[0026] Relay satellites are characterized by multiple telemetry and control links and modes, as well as multiple users and high bit rates in data transmission. This results in ground station systems that are multifunctional, multi-carrier, and have high bandwidth, leading to significant design challenges and high costs, making them unsuitable for commercial applications. Furthermore, with the increasing scarcity of Ka-band resources, traditional Ka-band-based relay satellite ground station systems suffer from numerous interference signals and usage limitations, further rendering them unsuitable for commercial use.

[0027] To support the construction of a new generation of commercial relay satellite communication systems, designing and building a new generation of relay satellite ground station systems has become an urgent problem to be solved.

[0028] To address the aforementioned problems, this disclosure provides a Q / V band-based integrated telemetry, tracking, and command (TT&C) and data transmission relay satellite ground station system, such as... Figure 1As shown, the relay satellite ground station system includes a monitoring system, a first telemetry and control baseband, a telemetry and control intermediate frequency matrix, a first remote control upconverter, a data transmission data storage and distribution system, a first data transmission baseband, a data transmission intermediate frequency matrix, a first uplink data transmission upconverter, an input combination network, a first V-band power amplifier, and an integrated Q / V antenna. The monitoring system is used to monitor and control various devices within the ground station system, interact with the superior control center, forward remote control data between the superior control center and the first telemetry and control baseband, receive control commands sent by the superior control center, and control the operation of devices within the ground station system according to the control commands. The first measurement and control baseband is connected to the monitoring system and the measurement and control intermediate frequency matrix respectively. It is used to generate remote control intermediate frequency signals based on remote control data and send the remote control intermediate frequency signals to the measurement and control intermediate frequency matrix. The measurement and control intermediate frequency matrix is ​​connected to the first measurement and control baseband and the first remote control up-converter respectively. It is used to configure the correspondence between the remote control intermediate frequency signal output port of the first measurement and control baseband and the input port of the first remote control up-converter, and output the remote control intermediate frequency signal to the first remote control up-converter. The first remote control upconverter is connected to the measurement and control intermediate frequency matrix and the input combination network respectively. It is used to upconvert the remote control intermediate frequency signal to the V-band remote control radio frequency signal. The output frequency is adjustable, and the V-band remote control radio frequency signal is output to the input combination network. The data transmission data storage and distribution system is connected to the first data transmission baseband and is used to interact with the user center, forward uplink data transmission data between the user center and the first data transmission baseband, receive uplink data transmission data sent by the user center, store uplink data transmission data and forward it to the first data transmission baseband. The first data transmission baseband is connected to the data transmission data storage and distribution system and the data transmission intermediate frequency matrix, respectively, and is used to generate at least one uplink data transmission intermediate frequency signal based on the uplink data transmission data. The data transmission intermediate frequency matrix is ​​connected to the first data transmission baseband and the first uplink data transmission up-converter, respectively. It is used to configure the correspondence between at least one uplink data transmission intermediate frequency signal output port of the first data transmission baseband and the input port of the first uplink data transmission up-converter, and to send at least one uplink data transmission intermediate frequency signal to at least one first uplink data transmission up-converter. In this case, multiple uplink data transmission intermediate frequency signals are sent to multiple first uplink data transmission up-converters, and one uplink data transmission intermediate frequency signal corresponds one-to-one with one first uplink data transmission up-converter. The first uplink data transmission upconverter is connected to the data transmission intermediate frequency matrix and the input combination network respectively. It is used to upconvert at least one uplink data transmission intermediate frequency signal to a V-band uplink data transmission radio frequency signal. The output frequency is adjustable, and at least one V-band uplink data transmission radio frequency signal is output to the input combination network. An input combination network is connected to the first remote control up-converter, the first uplink data transmission up-converter, and the first V-band power amplifier, respectively. It is used to configure the correspondence between the output ports of the first remote control up-converter, the output ports of the first uplink data transmission up-converter, and the input ports of the first V-band power amplifier, and to simultaneously output one V-band remote control RF signal and at least one V-band uplink data transmission RF signal to the first V-band power amplifier. The input combination network can also act as a signal switch to select the simultaneously input one V-band remote control RF signal and at least one V-band uplink data transmission RF signal. The first V-band power amplifier is connected to the input combination network and the integrated Q / V antenna respectively. It is used to perform power amplification processing of broadband multi-carrier signals, amplify the power of one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal, and transmit them to the integrated Q / V antenna simultaneously. In the transmission link, multiple signals can share the first V-band power amplifier, which simplifies the transmission network and ground station system architecture and can reduce implementation costs. An integrated Q / V antenna includes a Q-band feed element and a V-band feed element. The feed element is connected to a first V-band power amplifier. The antenna is used to simultaneously transmit one V-band remote control RF signal and at least one V-band uplink data transmission RF signal after processing by the power amplifier.

[0029] For one V-band remote control RF signal and at least one V-band uplink data transmission RF signal, the power is amplified by the first V-band power amplifier and then radiated through the integrated Q / V antenna. The integrated Q / V antenna can transmit one V-band remote control RF signal and at least one V-band uplink data transmission RF signal after power amplifier processing through the V-band feed element. That is, the uplink remote control signal and the uplink data transmission signal are transmitted simultaneously through the same V-band feed element.

[0030] The relay satellite ground station system provided in this disclosure, compared with the traditional Ka-band-based relay satellite ground station system, achieves frequency band upgrade, is more suitable for commercial applications, and solves the problem of limited use of relay satellite ground station systems caused by the scarcity of Ka-band resources in related technologies.

[0031] In one optional embodiment of this disclosure, the first V-band power amplifier is a multi-carrier shared power amplifier based on feedforward linearization, such as... Figure 2 As shown, it includes a carrier cancellation circuit, an error cancellation circuit, a down-conversion unit, an ADC unit, and a DSP unit; The carrier cancellation circuit is used to phase-shift the first multi-carrier signal according to the first phase-shift control signal of the DSP unit, perform power amplification on the phase-shifted first multi-carrier signal to obtain a second multi-carrier signal containing a first nonlinear component error signal, cancel the carrier signal in the second multi-carrier signal with the first multi-carrier signal to obtain the first nonlinear component error signal, and output the second multi-carrier signal and the first nonlinear component error signal to the error cancellation circuit. The first multi-carrier signal includes one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal. The second multi-carrier signal is 180° out of phase with the first multi-carrier signal. An error cancellation circuit is used to phase-shift the first nonlinear component error signal according to the second phase-shift control signal of the DSP unit, perform power amplification on the phase-shifted first nonlinear component error signal to obtain a second nonlinear component error signal, and cancel the first nonlinear component error signal in the second multicarrier signal through the second nonlinear component error signal to obtain a third multicarrier signal, wherein the second nonlinear component error signal is 180° out of phase with the second multicarrier signal; The downconversion unit is used to perform frequency conversion of the high-frequency sampled signal, converting the first multi-carrier signal, the first nonlinear component error signal, and the third multi-carrier signal from the V-band to the intermediate frequency, and outputting them to the ADC unit; the downconversion unit can be a downconverter, the V-band can be 47~51GHz, and the intermediate frequency can be 1GHz; The ADC unit is used to perform analog-to-digital conversion and sample the signal after frequency conversion to intermediate frequency. The ADC unit can be an analog-to-digital converter, including a core ADC chip, which can be an ADC12DJ3200. The DSP unit performs digital signal processing, detects and feeds forward control of the sampled signal, and outputs a first phase-shift control signal and a second phase-shift control signal to the carrier cancellation circuit and error cancellation circuit, respectively, to achieve feedforward linearization control. The DSP unit can be a digital signal processor, including a core DSP chip, such as a TMS320C6748.

[0032] Specifically, the DSP unit is also used to implement signal sampling, processing and operation. Through the first phase shift control signal and the second phase shift control signal, it controls the first digital phase shifter in the carrier cancellation circuit and the second digital phase shifter in the error cancellation circuit to perform adaptive feedforward control, dynamically control the phase, and improve the linearity of the output signal.

[0033] The multi-carrier shared power amplifier in this embodiment is compatible with low-cost design and transmit linearity requirements. By extracting and eliminating the first nonlinear component error signal generated by the power amplifier, the carrier cancellation circuit and the error cancellation circuit sequentially complete carrier cancellation and error cancellation, ensuring the linearity of the third multi-carrier signal output by the power amplifier and improving signal quality.

[0034] In one optional embodiment of this disclosure, the carrier cancellation circuit includes a power divider, a first digital phase shifter, a main amplifier, a first coupler, a first attenuator, a second coupler, and a third coupler. A power divider is used to split an input first multicarrier signal into two identical first multicarrier signals, which are then output to a first digital phase shifter and a second coupler, respectively. The first digital phase shifter is used to shift the phase of the first multi-carrier signal according to the first phase shift control signal of the DSP unit, and output the phase-shifted first multi-carrier signal to the main amplifier; the model of the first digital phase shifter can be HMC1113LP5E. The main amplifier is used to amplify the phase-shifted first multi-carrier signal to obtain a second multi-carrier signal containing a first nonlinear component error signal, and outputs the second multi-carrier signal to the first coupler; the power of the main amplifier can be designed to be 500W. The first coupler is used to split one second multicarrier signal into two identical second multicarrier signals, which are output to the first attenuator and the error cancellation circuit, respectively. The first attenuator is used to adjust the amplitude of the second multicarrier signal to be consistent with the amplitude of the first multicarrier signal; The second coupler is used to extract the first multi-carrier signal and output the first multi-carrier signal to the third coupler and the down-conversion unit respectively. The third coupler is used to cancel the carrier signal in the second multi-carrier signal using the first multi-carrier signal to obtain the first nonlinear component error signal, and output the first nonlinear component error signal to the error cancellation circuit.

[0035] In one optional embodiment of this disclosure, the error cancellation circuit includes a fourth coupler, a second digital phase shifter, a second attenuator, an error amplifier, a fifth coupler, and a sixth coupler. The fourth coupler is used to extract the first nonlinear component error signal and output the first nonlinear component error signal to the second digital phase shifter and the downconversion unit respectively. The second digital phase shifter is used to shift the first nonlinear component error signal according to the second phase shift control signal of the DSP unit to obtain the phase-shifted first nonlinear component error signal; the model of the second digital phase shifter can be HMC1113LP5E. The second attenuator is used to adjust the amplitude of the phase-shifted first nonlinear component error signal to match the amplitude of the second multicarrier signal. An error amplifier is used to amplify the power of the phase-shifted first nonlinear component error signal to obtain the second nonlinear component error signal. The power of the error amplifier can be designed to be 20% of that of the main amplifier. For example, if the main amplifier is designed to have a power of 500W, the error amplifier is designed to have a power of 100W. The fifth coupler is used to cancel the first nonlinear component error signal in the second multicarrier signal using the second nonlinear component error signal to obtain the third multicarrier signal; The sixth coupler is used to extract the third multi-carrier signal, output the third multi-carrier signal to the down-conversion unit, and output the third multi-carrier signal as an output signal.

[0036] The following is combined Figure 2 The working principle of the multi-carrier shared power amplifier provided in the embodiments of this disclosure will be explained.

[0037] Figure 2 In this process, the multi-carrier signal enters two paths, upper and lower, through a power divider. The upper branch undergoes signal power amplification via a first digital phase shifter and a main amplifier. Simultaneously, the multi-carrier signal generates nonlinear components such as intermodulation as it passes through the power amplifier. The signal then passes through a first coupler C1 and a first attenuator, before coupling with the lower branch signal via a third coupler C3. By controlling the first digital phase shifter and the main amplifier, the signals in the upper and lower branches are inverted by 180°. Adjusting the first attenuator ensures that the amplitudes of the upper and lower branch signals are consistent, thus achieving mutual cancellation of the carrier signals at the third coupler C3, retaining only the nonlinear error signal.

[0038] The nonlinear error signal then undergoes phase shifting and amplification via a second digital phase shifter, a second attenuator, and an error amplifier. It is then coupled to the upper branch signal via the fifth coupler C5. By controlling the second digital phase shifter and the error amplifier, the nonlinear error signals of the upper and lower branches are inverted by 180°. The amplitude of the nonlinear error signals in the upper and lower branches is then adjusted by the second attenuator to ensure they are identical, thus achieving mutual cancellation of the nonlinear error signals at the fifth coupler C5.

[0039] Figure 2In the process, the second coupler C2, the fourth coupler C4, and the sixth coupler C6 respectively extract the first multi-carrier signal, the first nonlinear component error signal, and the third multi-carrier signal. After extraction by the couplers, the signals are input to the DSP unit for signal detection via the down-conversion unit and the ADC unit. Then, the DSP unit performs feedforward control and finally outputs the first phase-shift control signal and the second phase-shift control signal, which control the first digital phase shifter and the second digital phase shifter respectively. The closed loop completes carrier cancellation and error cancellation, realizing feedforward linearization control.

[0040] In one optional embodiment of this disclosure, the number of first uplink data transmission upconverters is 1 to 4, the corresponding uplink data transmission intermediate frequency signals are 1 to 4, and the V-band uplink data transmission radio frequency signals are 1 to 4. Figure 1 In the system, the number m of the first uplink data transmission upconverters can be 1, 2, 3 or 4. When m=4, the ground station system includes 4 first uplink data transmission upconverters, corresponding to 4 uplink channels, 4 uplink data transmission intermediate frequency signals, and 4 V-band uplink data transmission radio frequency signals.

[0041] In one optional embodiment of this disclosure, the relay satellite ground station system further includes a second telemetry and control baseband, a second remote control up-converter, a second data transmission baseband, a second uplink data transmission up-converter, a second V-band power amplifier, and a power amplifier switching switch. The second telemetry and control baseband serves as a backup to the first telemetry and control baseband. The connection relationship of the second telemetry and control baseband is the same as that of the first telemetry and control baseband, thus achieving primary and backup redundancy. The second remote-controlled inverter serves as a backup for the first remote-controlled inverter. The connection relationship of the second remote-controlled inverter is the same as that of the first remote-controlled inverter, thus achieving primary and backup redundancy. The second data transmission baseband serves as a backup for the first data transmission baseband. The connection relationship of the second data transmission baseband is the same as that of the first data transmission baseband, thus achieving primary and backup redundancy. The second uplink data transmission inverter serves as a backup to the first uplink data transmission inverter. The connection relationship of the second uplink data transmission inverter is the same as that of the first uplink data transmission inverter, thus achieving primary and backup redundancy. The number of the second uplink data transmission inverter is at least one. The second V-band power amplifier serves as a backup to the first V-band power amplifier. The connection relationship of the second V-band power amplifier is the same as that of the first V-band power amplifier, achieving primary and backup redundancy. Both the second V-band power amplifier and the first V-band power amplifier are multi-carrier shared power amplifiers based on feedforward linearization. In the transmission link, when the first V-band power amplifier fails to work properly, multiple signals can share the power amplifier of the second V-band power amplifier, which simplifies the transmission network and ground station system architecture and can reduce implementation costs. The power amplifier switching switch is connected to the first V-band power amplifier, the second V-band power amplifier, and the integrated Q / V antenna, respectively, and is used to configure the correspondence between the output ports of the first V-band power amplifier, the output ports of the second V-band power amplifier, and the input ports of the V-band feed element of the integrated Q / V antenna.

[0042] The telemetry and control baseband, remote control up-converter, data transmission baseband, uplink data transmission up-converter, and V-band power amplifier are all redundant, which can improve data availability and the reliability of the ground station system. When the ground station system is in operation, only one of the two backup devices is in operation. When the main device is working normally, the backup device is not activated. The backup device is only activated when the main device fails to work normally.

[0043] In one optional embodiment of this disclosure, the monitoring system includes an internal server, a switch, and a terminal; The internal servers, switches, and terminals are all redundant, with primary and backup configurations.

[0044] In one optional embodiment of this disclosure, the data transmission data storage and distribution system includes an internal server and a switch; The internal servers and switches are all redundant, with primary and backup functionality.

[0045] Specifically, for the specific devices in the monitoring system and the data transmission, data storage and distribution system, only one of the two backup devices is in working condition. The primary device is working normally, and the backup device is not activated. The backup device is only activated when the primary device fails to work normally.

[0046] In one optional embodiment of this disclosure, the relay satellite ground station system further includes a first Q-band low-noise amplifier, a Q-band allocation network, a first telemetry downconverter, and a first downlink data transmission downconverter; The integrated Q / V antenna is connected to a first Q-band low-noise amplifier via a Q-band feed element. It is also used to simultaneously receive one Q-band telemetry RF signal and at least one Q-band downlink data transmission RF signal via the Q-band feed element, and transmit them to the first Q-band low-noise amplifier simultaneously. The integrated Q / V antenna can simultaneously receive one Q-band telemetry RF signal and at least one Q-band downlink data transmission RF signal via the Q-band feed element, that is, it can simultaneously receive downlink telemetry signals and downlink data transmission signals in the same Q-band, and perform downlink telemetry and downlink data transmission in the same Q-band. The first Q-band low-noise amplifier is connected to both the integrated Q / V antenna and the Q-band allocation network. It performs low-noise amplification processing of broadband multi-carrier Q-band signals and simultaneously amplifies one Q-band telemetry RF signal and at least one Q-band downlink data transmission RF signal. The low-noise amplifier (LNA) is an amplifier with a very low noise figure, which can improve the output signal-to-noise ratio. In the receiving link, multiple signals share the first Q-band low-noise amplifier (LNA), which simplifies the ground station system architecture and reduces implementation costs. The Q-band allocation network is connected to the first Q-band low-noise amplifier, the first telemetry downconverter, and the first downlink data transmission downconverter, respectively. It is used to configure the correspondence between the output port of the first Q-band low-noise amplifier and the input ports of the first telemetry downconverter and the first downlink data transmission downconverter, respectively. It sends one Q-band telemetry RF signal to the first telemetry downconverter and at least one Q-band downlink data transmission RF signal to at least one first downlink data transmission downconverter. The Q-band downlink data transmission RF signal corresponds one-to-one with one first downlink data transmission downconverter. The first telemetry downconverter is connected to the Q-band distribution network and the telemetry and control intermediate frequency matrix, respectively. It is used to downconvert the Q-band telemetry radio frequency signal to the telemetry intermediate frequency signal. The input frequency point is adjustable, and the telemetry intermediate frequency signal is sent to the telemetry and control intermediate frequency matrix. The measurement and control intermediate frequency matrix is ​​also connected to the first telemetry downconverter and is also used to configure the correspondence between the output port of the first telemetry downconverter and the telemetry intermediate frequency signal input port of the first measurement and control baseband, and to send the received telemetry intermediate frequency signal to the first measurement and control baseband. The first measurement and control baseband is also used to process telemetry intermediate frequency signals and send telemetry data to the monitoring system; The monitoring system is also used to forward telemetry data between the upper-level control center and the first telemetry and control baseband, receive telemetry data, and forward telemetry data to the upper-level control center. The first downlink data transmission downconverter is connected to the Q-band allocation network and the data transmission intermediate frequency matrix, respectively. It is used to downconvert at least one Q-band downlink data transmission RF signal to an intermediate frequency signal to obtain at least one downlink data transmission intermediate frequency signal. The input frequency point is adjustable, and at least one downlink data transmission intermediate frequency signal is sent to the data transmission intermediate frequency matrix. The data transmission intermediate frequency matrix is ​​also connected to the first downlink data transmission downconverter and is also used to configure the correspondence between the output port of the first downlink data transmission downconverter and at least one downlink data transmission intermediate frequency signal input port of the first data transmission baseband, and to send downlink data transmission intermediate frequency signals to the first data transmission baseband. The first data transmission baseband is also used to process the downlink data transmission intermediate frequency signal to obtain downlink data transmission data, and send the downlink data transmission data to the data transmission data storage and distribution system; The data transmission data storage and distribution system is also used to forward downlink data transmission data between the user center and the first data transmission baseband, receive downlink data transmission data, store downlink data transmission data, and forward it to the user center.

[0047] This disclosure utilizes the integrated design concept of telemetry, control and data transmission to realize satellite telemetry, control and relay data transmission in the same frequency band, thus achieving integrated telemetry, control and data transmission. Furthermore, by sharing power amplifiers and LNAs, the architecture of the relay satellite ground station system is simplified at the design level, reducing implementation costs.

[0048] In one optional embodiment of this disclosure, the number of first downlink data transmission downconverters is 1 to 8, the corresponding Q-band downlink data transmission RF signals are 1 to 8, and the downlink data transmission intermediate frequency signals are 1 to 8. Figure 1 In the process, the number n of the first downlink data transmission downconverters can be 1, 2, 3, 4, 5, 6, 7 or 8. When m=8, the ground station system includes 8 first downlink data transmission downconverters, corresponding to 8 downlink channels, 8 Q-band downlink data transmission RF signals and 8 downlink data transmission intermediate frequency signals.

[0049] In one optional embodiment of this disclosure, the relay satellite ground station system further includes a second Q-band low-noise amplifier, a second telemetry downconverter, a second downlink data transmission downconverter, and a low-noise amplifier switching switch. The second Q-band low-noise amplifier serves as a backup for the first Q-band low-noise amplifier. The connection relationship of the second Q-band low-noise amplifier is the same as that of the first Q-band low-noise amplifier, thus achieving primary and backup redundancy. The second telemetry down-converter serves as a backup for the first telemetry down-converter. The connection relationship of the second telemetry down-converter is the same as that of the first telemetry down-converter, thus achieving primary and backup redundancy. The second downlink data transmission downconverter serves as a backup for the first downlink data transmission downconverter. The connection relationship of the second downlink data transmission downconverter is the same as that of the first downlink data transmission downconverter, achieving primary and backup redundancy. The number of the second downlink data transmission downconverter is at least one. The low-noise amplifier switching switch is connected to the integrated Q / V antenna and the Q-band low-noise amplifier respectively, and is used to configure the correspondence between the output port of the Q-band feed element of the integrated Q / V antenna and the input ports of the first Q-band low-noise amplifier and the second Q-band low-noise amplifier.

[0050] The Q-band low-noise amplifier, telemetry downconverter, and downlink data transmission downconverter are all redundant, improving data availability and the reliability of the ground station system. When the ground station system is in operation, only one of the two backup devices is active. The backup device is not activated when the primary device is working normally. The backup device is only activated when the primary device fails to work properly.

[0051] In one optional embodiment of this disclosure, in the working state, only one of the backup or primary / backup redundant devices is in the working state.

[0052] In one optional embodiment of this disclosure, the ground station system simultaneously performs uplink remote control, uplink data transmission, downlink telemetry, and downlink data transmission services in the Q / V band. When m=4 and n=8, the Q / V band relay satellite ground station system can simultaneously perform one 1Mbps uplink remote control, one 1Mbps downlink telemetry, four 40Mbps uplink data transmissions, and eight 300Mbps downlink data transmissions; it can simultaneously perform uplink and downlink in the same frequency band, supporting relay satellite telemetry and control and relay data transmission ground transceiver tasks, and realizing integrated telemetry, control, and data transmission.

[0053] The following is combined Figure 1 The parameters in the Q / V band relay satellite ground station system are explained to illustrate the technical solution of this disclosure. It should be noted that the specific values ​​of each parameter are provided as specific embodiments to facilitate understanding of the technical solution of this disclosure and do not constitute a limitation of this disclosure.

[0054] Figure 1 The Q / V band relay satellite ground station system shown can simultaneously achieve 1 channel of 1Mbps uplink remote control, 1 channel of 1Mbps downlink telemetry, 4 channels of 40Mbps uplink data transmission, and 8 channels of 300Mbps downlink data transmission when m=4 and n=8.

[0055] In ground station systems, EIRP (Effective Isotropic Radiated Power) is a measure of the optimal power that a specific transmitter antenna can radiate. It represents the power when the antenna radiates uniformly in all directions under ideal conditions. The G / T value is an important parameter for evaluating antenna performance, representing the ratio of antenna gain to system noise temperature, usually expressed in dB / k. The larger the G / T value, the better the performance of the ground station receiving system. Third-order intermodulation refers to the nonlinear distortion that may occur in an amplifier when there are two signals with similar frequencies at the input. In this embodiment, the ground station system's EIRP is designed to be no less than 90 dBW, the G / T value no less than 44 dB / k, and the third-order intermodulation no greater than 30 dBc. The system implements a primary / backup redundancy design, with power amplifiers, LNAs, up-converters, down-converters, telemetry and control baseband, and data transmission baseband all having primary / backup redundancy. Key equipment includes: One integrated Q / V antenna supports Q-band signal reception from 37 to 42 GHz and V-band signal transmission from 47 to 51 GHz, with an antenna gain of not less than 70 dB; Two V-band power amplifiers serve as backups for each other; each amplifier has a power of 500W, with a 3dB backoff capability, and supports amplification of broadband multi-carrier signals from 47 to 51GHz. It also supports power amplification of one remote control uplink signal and four data transmission uplink signals. Two Q-band LNAs serve as backups for each other; the noise figure of a single LNA is no greater than 2dB, and it supports low-noise amplification of Q-band signals from 37 to 42 GHz, as well as low-noise amplification of one telemetry downlink signal and eight data transmission downlink signals. Input the combined network to complete the input signal configuration of the power amplifier; Two remote-controlled upconverters serve as backups for each other; a single remote-controlled upconverter supports upconverting a 70MHz intermediate frequency signal to a 47~51GHz remote-controlled radio frequency signal, and the output frequency is adjustable. Two telemetry downconverters serve as backups for each other; a single telemetry downconverter supports downconverting 37~42GHz telemetry RF signals to 70MHz intermediate frequency signals, and the input frequency is adjustable. Five uplink data transmission upconverters are used, with four in use and one on standby; each uplink data transmission upconverter supports upconverting a 1.2GHz intermediate frequency signal to a 47~51GHz uplink data transmission radio frequency signal, and the output frequency is adjustable. Nine downlink data transmission downconverters are used, with eight in operation and one on standby. Each telemetry downconverter supports downconverting 37~42GHz downlink data transmission RF signals to 70MHz intermediate frequency signals, and the input frequency is adjustable. The intermediate frequency matrix for measurement and control completes the input signal configuration for the measurement and control frequency converter; The data transmission intermediate frequency matrix completes the input signal configuration of the data transmission frequency converter; Two telemetry and control basebands are used as primary and backup for each other; each telemetry and control baseband can support signal processing for one remote control signal and one telemetry signal. Two data transmission basebands are used as primary and backup for each other; a single data transmission baseband can support signal processing for 4 uplink and 8 downlink signals. The monitoring system has redundant internal servers, switches, and terminals to control ground station system equipment and exchange information with higher-level equipment. The data transmission data storage and distribution system has redundant internal servers and switches to complete the reception, storage, forwarding of uplink and downlink data transmission and information interaction with the user center.

[0056] The Q / V band-based integrated telemetry, telemetry, and data transmission relay satellite ground station system disclosed herein achieves integrated telemetry, telemetry, and data transmission, shares a power amplifier and LNA, simplifies the system architecture at the design level, and reduces implementation costs.

[0057] As can be seen from the above description, this disclosure achieves the following technical effects: This disclosure presents a Q / V band-based integrated telemetry, telemetry, and data transmission relay satellite ground station system, which supports relay satellite telemetry, telemetry, and data transmission ground transceiver tasks. By sharing a power amplifier and LNA, the system architecture design is greatly simplified and the implementation cost is reduced. Compared with Ka band-based relay satellite ground station systems in related technologies, it achieves frequency band upgrade, is more suitable for commercial applications, and solves the problem of limited use of relay satellite ground station systems caused by the scarcity of Ka band resources in related technologies. The multi-carrier shared power amplifier in the relay satellite ground station system disclosed herein is compatible with low-cost design and transmission linearity requirements. By extracting and eliminating the nonlinear component error signal generated by the power amplifier, the carrier cancellation circuit and the error cancellation circuit sequentially complete the carrier cancellation and error cancellation, thereby ensuring the linearity of the power amplifier output signal and improving signal quality.

[0058] Although embodiments of the present disclosure have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A ground station system for Q / V-band-based TT&C and data transmission integrated relay satellite, characterized in that, The system comprises: a monitoring system for monitoring and controlling various devices in the ground station system, interacting with the upper control center, forwarding remote control data between the upper control center and the first measurement and control baseband, receiving control instructions sent by the upper control center, and controlling the operation of the devices in the ground station system according to the control instructions; a first measurement and control baseband for generating remote control intermediate frequency signals according to the remote control data and sending the remote control intermediate frequency signals to a measurement and control intermediate frequency matrix; a measurement and control intermediate frequency matrix for configuring the correspondence between the remote control intermediate frequency signal output port of the first measurement and control baseband and the input port of the first remote control upconverter, and outputting the remote control intermediate frequency signals to the first remote control upconverter; a first remote control upconverter for upconverting the remote control intermediate frequency signals to V-band remote control radio frequency signals, adjusting the output frequency, and outputting the V-band remote control radio frequency signals to an input combination network; a data transmission data storage and distribution system for data interaction with the user center, forwarding uplink data transmission data between the user center and the first data transmission baseband, receiving uplink data transmission data sent by the user center, storing the uplink data transmission data and forwarding it to the first data transmission baseband; a first data transmission baseband for generating at least one uplink data transmission intermediate frequency signal according to the uplink data transmission data; a data transmission intermediate frequency matrix for configuring the correspondence between the at least one uplink data transmission intermediate frequency signal output port of the first data transmission baseband and the input port of the first uplink data transmission upconverter, and sending the at least one uplink data transmission intermediate frequency signal to at least one first uplink data transmission upconverter, multiple uplink data transmission intermediate frequency signals to multiple first uplink data transmission upconverters, one uplink data transmission intermediate frequency signal to one first uplink data transmission upconverter; a first uplink data transmission upconverter for upconverting the at least one uplink data transmission intermediate frequency signal to V-band uplink data transmission radio frequency signals, adjusting the output frequency, and outputting at least one V-band uplink data transmission radio frequency signal to the input combination network; an input combination network for configuring the correspondence between the output port of the first remote control upconverter, the output port of the first uplink data transmission upconverter and the input port of the first V-band power amplifier, and simultaneously outputting one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal to the first V-band power amplifier; a first V-band power amplifier for performing power amplification processing of wideband multi-carrier signals, power amplifying the one V-band remote control radio frequency signal and the at least one V-band uplink data transmission radio frequency signal, and simultaneously sending them to an integrated Q / V antenna; an integrated Q / V antenna comprising Q-band feed elements and V-band feed elements for simultaneously transmitting the one V-band remote control radio frequency signal and the at least one V-band uplink data transmission radio frequency signal after power amplification through the V-band feed elements.

2. The system of claim 1, wherein, The first V-band power amplifier is a multi-carrier common power amplifier based on feedforward linearization, comprising a carrier cancellation circuit, an error cancellation circuit, a downconversion unit, an ADC unit and a DSP unit. The carrier cancellation circuit is configured to perform phase shift on the first multi-carrier signal according to the first phase shift control signal of the DSP unit, perform power amplification on the phase-shifted first multi-carrier signal, obtain a second multi-carrier signal containing a first non-linear component error signal, cancel the carrier signal in the second multi-carrier signal by the first multi-carrier signal, obtain the first non-linear component error signal, and output the second multi-carrier signal and the first non-linear component error signal to the error cancellation circuit, wherein the first multi-carrier signal comprises one V-band remote control radio frequency signal and at least one V-band uplink data transmission radio frequency signal, and the second multi-carrier signal is 180° out of phase with the first multi-carrier signal; The error cancellation circuit is configured to perform phase shift on the first non-linear component error signal according to the second phase shift control signal of the DSP unit, perform power amplification on the phase-shifted first non-linear component error signal, obtain a second non-linear component error signal, cancel the first non-linear component error signal in the second multi-carrier signal by the second non-linear component error signal, and obtain a third multi-carrier signal, wherein the second non-linear component error signal is 180° out of phase with the second multi-carrier signal; The frequency down-conversion unit is configured to perform frequency conversion on the high-frequency sampling signal, convert the first multi-carrier signal, the first non-linear component error signal and the third multi-carrier signal from the V-band to the intermediate frequency respectively, and output to the ADC unit; The ADC unit is configured to perform analog-to-digital conversion and sample the signals converted to the intermediate frequency; The DSP unit is configured to perform digital signal processing, detect and feed forward control on the sampled signals, and output the first phase shift control signal and the second phase shift control signal to the carrier cancellation circuit and the error cancellation circuit respectively to realize feed forward linearization control.

3. The system of claim 2, wherein the ground station is configured to transmit the data to the relay satellite via a first beam and to receive the data from the relay satellite via a second beam. The carrier cancellation circuit comprises a power divider, a first digital phase shifter, a main amplifier, a first coupler, a first attenuator, a second coupler and a third coupler; ​ The power divider is configured to divide one input first multi-carrier signal into two identical first multi-carrier signals, and output the two first multi-carrier signals to the first digital phase shifter and the second coupler respectively; The first digital phase shifter is configured to perform phase shift on the first multi-carrier signal according to the first phase shift control signal of the DSP unit, and output the phase-shifted first multi-carrier signal to the main amplifier; The main amplifier is configured to perform power amplification on the phase-shifted first multi-carrier signal, obtain a second multi-carrier signal containing a first non-linear component error signal, and output the second multi-carrier signal to the first coupler; The first coupler is configured to divide one second multi-carrier signal into two identical second multi-carrier signals, and output the two second multi-carrier signals to the first attenuator and the error cancellation circuit respectively; The first attenuator is configured to adjust the amplitude of the second multi-carrier signal to be consistent with the amplitude of the first multi-carrier signal; The second coupler is configured to extract the first multi-carrier signal, and output the first multi-carrier signal to the third coupler and the frequency down-conversion unit respectively; The third coupler is configured to cancel the carrier signal in the second multi-carrier signal by using the first multi-carrier signal to obtain a first non-linear component error signal, and output the first non-linear component error signal to the error cancellation circuit.

4. The system of claim 2, wherein, The error cancellation circuit comprises a fourth coupler, a second digital phase shifter, a second attenuator, an error amplifier, a fifth coupler and a sixth coupler. The fourth coupler is configured to extract the first non-linear component error signal and output the first non-linear component error signal to the second digital phase shifter and the frequency down-conversion unit respectively. The second digital phase shifter is configured to phase shift the first non-linear component error signal according to a second phase shift control signal of the DSP unit to obtain a phase-shifted first non-linear component error signal. The second attenuator is configured to adjust the amplitude of the phase-shifted first non-linear component error signal to be consistent with the amplitude of the second multi-carrier signal. The error amplifier is configured to perform power amplification on the phase-shifted first non-linear component error signal to obtain a second non-linear component error signal. The fifth coupler is configured to cancel the first non-linear component error signal in the second multi-carrier signal by using the second non-linear component error signal to obtain the third multi-carrier signal. The sixth coupler is configured to extract the third multi-carrier signal and output the third multi-carrier signal to the frequency down-conversion unit and as an output signal.

5. The system of claim 1, wherein, The number of the first uplink data transmission up-converter is 1 to 4, and the corresponding uplink data transmission intermediate frequency signal is 1 to 4, and the V-band uplink data transmission radio frequency signal is 1 to 4.

6. The system of claim 1, wherein, The ground station system further comprises a second measurement and control baseband, a second remote control up-converter, a second data transmission baseband, a second uplink data transmission up-converter, a second V-band power amplifier and a power amplifier switching switch. The second measurement and control baseband is a backup of the first measurement and control baseband, and the connection relationship of the second measurement and control baseband is the same as that of the first measurement and control baseband, realizing main-backup redundancy. The second remote control up-converter is a backup of the first remote control up-converter, and the connection relationship of the second remote control up-converter is the same as that of the first remote control up-converter, realizing main-backup redundancy. The second data transmission baseband is a backup of the first data transmission baseband, and the connection relationship of the second data transmission baseband is the same as that of the first data transmission baseband, realizing main-backup redundancy. The second uplink data transmission up-converter is a backup of the first uplink data transmission up-converter, and the connection relationship of the second uplink data transmission up-converter is the same as that of the first uplink data transmission up-converter, realizing main-backup redundancy, wherein the number of the second uplink data transmission up-converter is at least one. The second V-band power amplifier is a backup of the first V-band power amplifier, and the connection relationship of the second V-band power amplifier is the same as that of the first V-band power amplifier, realizing main-backup redundancy. The power amplifier switching switch is connected to the first V-band power amplifier, the second V-band power amplifier and the integrated Q / V antenna respectively, and is configured to configure the corresponding relationship between the first V-band power amplifier output port, the second V-band power amplifier output port and the integrated Q / V antenna V-band feed input port.

7. The system of claim 1, wherein the ground station is configured to communicate with the relay satellite via a first beam and a second beam. The ground station system further comprises a first Q-band low noise amplifier, a Q-band distribution network, a first telemetry down converter and a first downlink data transmission down converter; The integrated Q / V antenna is connected to the first Q-band low noise amplifier through the Q-band feed element, and is further configured to simultaneously receive one Q-band telemetry radio frequency signal and at least one Q-band downlink data transmission radio frequency signal through the Q-band feed element, and transmit them to the first Q-band low noise amplifier; The first Q-band low noise amplifier is connected to the integrated Q / V antenna and the Q-band distribution network respectively, and is configured to perform low noise amplification processing on wideband multi-carrier Q-band signals, and simultaneously amplify the one Q-band telemetry radio frequency signal and the at least one Q-band downlink data transmission radio frequency signal. The Q-band distribution network is connected to the first Q-band low noise amplifier, the first telemetry down converter and the first downlink data transmission down converter respectively, and is configured to configure a corresponding relationship between an output port of the first Q-band low noise amplifier and an input port of the first telemetry down converter and an input port of the first downlink data transmission down converter, transmit the one Q-band telemetry radio frequency signal to the first telemetry down converter, and simultaneously transmit the at least one Q-band downlink data transmission radio frequency signal to at least one first downlink data transmission down converter, wherein the one Q-band downlink data transmission radio frequency signal corresponds to one first downlink data transmission down converter. The first telemetry down converter is connected to the Q-band distribution network and a measurement and control intermediate frequency matrix respectively, and is configured to down-convert the Q-band telemetry radio frequency signal to a telemetry intermediate frequency signal, and transmit the telemetry intermediate frequency signal to the measurement and control intermediate frequency matrix. The measurement and control intermediate frequency matrix is further connected to the first telemetry down converter, and is further configured to configure a corresponding relationship between an output port of the first telemetry down converter and a telemetry intermediate frequency signal input port of a first measurement and control baseband, and transmit the received telemetry intermediate frequency signal to the first measurement and control baseband. The first measurement and control baseband is further configured to process the telemetry intermediate frequency signal, and transmit telemetry data to the monitoring system. The monitoring system is further configured to forward telemetry data between the upper control center and the first measurement and control baseband, receive the telemetry data, and forward the telemetry data to the upper control center. The first downlink data transmission down converter is connected to the Q-band distribution network and a data transmission intermediate frequency matrix respectively, and is configured to down-convert the at least one Q-band downlink data transmission radio frequency signal to an intermediate frequency signal to obtain at least one downlink data transmission intermediate frequency signal, and transmit the at least one downlink data transmission intermediate frequency signal to the data transmission intermediate frequency matrix. The data transmission intermediate frequency matrix is further connected to the first downlink data transmission down converter, and is further configured to configure a corresponding relationship between an output port of the first downlink data transmission down converter and at least one downlink data transmission intermediate frequency signal input port of a first data transmission baseband, and transmit the downlink data transmission intermediate frequency signal to the first data transmission baseband. The first data transmission baseband is further configured to process the downlink data transmission intermediate frequency signal to obtain downlink data transmission data, and transmit the downlink data transmission data to a data transmission data storage and distribution system. The data transmission data storage and distribution system is further configured to forward downlink data transmission data between the user center and the first data transmission baseband, receive the downlink data transmission data, store the downlink data transmission data and forward the downlink data transmission data to the user center.

8. The system of claim 7, wherein, The number of the first downlink data transmission downconverter is 1 to 8, and the corresponding Q-band downlink data transmission radio frequency signal is 1 to 8, and the downlink data transmission intermediate frequency signal is 1 to 8.

9. The system of claim 7, wherein, The ground station system further comprises a second Q-band low noise amplifier, a second telemetry downconverter, a second downlink data transmission downconverter and a low noise amplifier switching switch. The second Q-band low noise amplifier is a backup of the first Q-band low noise amplifier, and the connection relationship of the second Q-band low noise amplifier is the same as that of the first Q-band low noise amplifier, realizing main-backup redundancy. The second telemetry downconverter is a backup of the first telemetry downconverter, and the connection relationship of the second telemetry downconverter is the same as that of the first telemetry downconverter, realizing main-backup redundancy. The second downlink data transmission downconverter is a backup of the first downlink data transmission downconverter, and the connection relationship of the second downlink data transmission downconverter is the same as that of the first downlink data transmission downconverter, realizing main-backup redundancy, wherein the number of the second downlink data transmission downconverter is at least one. The low noise amplifier switching switch is connected to the integrated Q / V antenna and the Q-band low noise amplifier, respectively, and is configured to configure the corresponding relationship between the Q-band feed element output port of the integrated Q / V antenna and the input port of the first Q-band low noise amplifier and the input port of the second Q-band low noise amplifier.

10. The system of any one of claims 7 to 9, wherein the ground station is configured to transmit the data to the satellite via a first beam and to receive the data from the satellite via a second beam. 10 The ground station system simultaneously performs uplink remote control, uplink data transmission, downlink telemetry and downlink data transmission services in the Q / V band.

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