Satellite radio frequency link control equipment capable of being remotely controlled and reconstructed by software

Abstract

The invention provides a satellite radio frequency link control device capable of being remotely controlled and reconfigured by software, which is characterized in that satellite signals are received and transmitted through an X-band measurement and control data transmission integrated ground antenna, an S-band ground left-right-hand transmitting and receiving common antenna, an L-band ground transmitting antenna and a Ka-band measurement and control-data transmission integrated ground transmitting and receiving antenna; through macro parameter loading of satellite radio frequency link control equipment capable of being remotely controlled and reconstructed by software, various radio frequency link relationships are reconstructed with an S measurement and control up-down converter, an X spread spectrum measurement and control up-down converter, a 17GHz-34GHz wide frequency band ka up-down converter, a VPX bus-based comprehensive measurement and control comprehensive baseband and a VPX architecture-based data transmission comprehensive baseband; functional reconstruction of various combinations of links such as S spread spectrum measurement and control, X-band spread spectrum measurement and control, Ka-band spread spectrum measurement and control, Ka-band data transmission, X-band data transmission and the like is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of satellite ground testing, and specifically, to a satellite radio frequency link control device that can be remotely controlled and reconfigured by software. Background Art

[0002] When satellites conduct space-ground radio frequency tests, they often encounter requirements for link control of multi-band complex channels and switching of space-ground test modes. For example, it is necessary to implement 18 radio frequency channel test requirements such as multi-channel S non-coherent spread spectrum measurement and control, multi-channel X non-coherent spread spectrum measurement and control, Ka non-coherent spread spectrum measurement and control, X-to-ground data transmission channel switching and link control, Ka-to-ground data transmission channel switching and link control, and GNSS dual-channel navigation uplink setting. At the same time, it is necessary to monitor and record radio frequency signals for 12 key channels. There are many combinations of radio frequency communication channel modes at the test site and the mode setting process is complex. Therefore, it is necessary to realize remote control network reconfiguration of complex radio frequency channels by designing software instruction chain macro configuration. Currently, there are various configuration methods for realizing network reconfiguration of complex radio frequency links, but there is no networked link control method that can meet the above test requirements at the same time.

[0003] Patent application document CN115686088A discloses a Ka-band multi-system multi-rate measurement and control device, which has two modes of non-coherent measurement and control of the ground and measurement and control data transmission of the ground and works in a time-sharing manner. It includes: a Ka radio frequency transceiver module for receiving and transmitting ground measurement and control signals, and the radio frequency signals include two measurement and control signals of non-coherent spread spectrum system and measurement and control data transmission system; a signal processing module for quickly capturing and tracking ground measurement and control signals, processing channel ranging signals, and modulating and transmitting engineering telemetry; a secondary power supply module for power filtering, voltage conversion, and transponder switch execution. However, this patent cannot completely solve the existing technical problems and cannot meet the requirements of the present invention. Summary of the Invention

[0004] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a satellite radio frequency link control device that can be remotely controlled and reconfigured by software.

[0005] According to the satellite radio frequency link control device that can be remotely controlled and reconfigured by software provided by the present invention, it includes:

[0006] Antenna system: The ground transceiver antennas in the S band, X band, and Ka band are respectively connected to the corresponding circulators; the circulator is used for signal separation and synthesis, sending the received signal to the subsequent processing unit, and sending the transmitted signal to the antenna;

[0007] Signal processing unit: The signals in each frequency band are power-adjusted through a programmable attenuator; the signals are converted to different frequency bands through a frequency converter; the signals are power-distributed or combined through a combiner / divider;

[0008] Control and Monitoring System: The monitoring branch is used to monitor the signal status; the power meter and spectrum analyzer are used to measure the power and frequency characteristics of the signal; the GNSS satellite navigation simulator provides positioning information; the VPX bus integrated measurement and control baseband is responsible for the control and data transmission of the overall system;

[0009] Network and Data Processing: The gigabit test local area network connects the command sending terminal, telemetry analysis and processing database, remote control frame processing workstation, telemetry data analysis workstation, and multi-channel remote sensing data fusion processing workstation to achieve data transmission and processing;

[0010] Switch Matrix: The 2*12 switch matrix is used for signal path selection and switching to ensure that the signal can flow correctly to the required processing unit;

[0011] GPS Receiver and Transmitting Antenna: The GPS receiver receives GPS signals for time synchronization and position information; the GPS transmitting antenna is used to send GPS signals;

[0012] Data Transmission Subsystem: Processes the transmission of digital signals, including signal processing in the Ka band and X band;

[0013] The antenna system, signal processing unit, control and monitoring system, network and data processing, switch matrix, GPS receiver and transmitting antenna, and data transmission subsystem are interconnected and remotely controlled and reconfigured through software to adapt to different mission requirements.

[0014] Preferably, the satellite radio frequency link control device has an external shape of a 4U standard rack-mounted chassis, and at the same time has the networked reconfiguration ability of 18 radio frequency communication test links and 12 radio frequency monitoring links. Microwave power measurement and long-term data storage and signal monitoring of radio frequency spectrum are carried out through the 2*12 switch matrix;

[0015] Send the satellite-ground test mode macro configuration instruction chain through the remote command sending terminal, and networked reconfigurable configuration of the satellite and ground system S spread spectrum communication mode, macro configuration networked reconfiguration X spread spectrum measurement and control communication test mode, macro configuration networked reconfiguration Ka spread spectrum measurement and control communication test mode, macro configuration networked reconfiguration X-to-ground data transmission communication link mode, macro configuration networked reconfiguration Ka-to-ground data transmission communication link mode, macro configuration networked reconfiguration L-band navigation link mode, a total of 18 links and combined scenarios of each working mode. Through the instruction chain, link settings and baseband function reconfiguration of the radio frequency test system including the L, S, X, and Ka frequency bands are achieved;

[0016] Set the satellite S spread spectrum communication mode, set the start output, frequency point, and attenuation value of the ground S frequency converter, set the spread spectrum working mode of the VPX integrated measurement and control baseband, and set the link attenuation of the satellite radio frequency link control device that can be remotely controlled and reconfigured by software by sending the satellite-ground task setting instruction chain.

[0017] Preferably, the 18 radio frequency communication test links refer to those that simultaneously have 5 networked reconfiguration configurations for TT&C uplink, including 2 S-band uplink spread-spectrum TT&C links, 2 X-band uplink spread-spectrum TT&C links, and 1 Ka-band uplink spread-spectrum TT&C link; 5 networked reconfiguration configurations for TT&C downlink, including 2 S-band downlink spread-spectrum TT&C link networked reconfiguration configurations, 2 X-band downlink spread-spectrum TT&C links, and 1 Ka-band downlink spread-spectrum TT&C link; 2 L-band navigation uplinks of 1.0 GHz - 2 GHz; 4 X-band logarithmic data transmission downlinks of 7 GHz - 10 GHz and 2 Ka-band earth data transmission downlink networked reconfiguration configurations of 17 GHz - 34 GHz;

[0018] The 12 radio frequency monitoring links include 10 TT&C channel monitoring links, 1 navigation channel monitoring link, and 1 X data transmission channel monitoring link.

[0019] Preferably, the satellite radio frequency link control device capable of software remote control reconfiguration simultaneously has 5 networked reconfiguration configurations for TT&C uplink, including: the first modulator of the VPX bus integrated spread-spectrum baseband divides the non-coherent spread-spectrum modulation signal with the same telecommand information into two paths through the combined power divider in the satellite radio frequency link control device and respectively provides 1 S-band upconverter and 1 X-band upconverter, and then performs radio frequency link power control respectively. The radio frequency signals modulating the telecommand data are sent to 1 S-band spread-spectrum transponder and 1 X-band spread-spectrum transponder simultaneously by the S-band ground left-right hand transceiver shared antenna and the X-band TT&C / data transmission integrated ground antenna;

[0020] The second modulator of the VPX bus integrated spread-spectrum baseband divides the non-coherent spread-spectrum modulation signal with the same telecommand information into three paths through the combined power divider in the satellite radio frequency link control device and respectively provides 1 S-band upconverter, 1 X-band upconverter, and 1 Ka-band upconverter, and then performs radio frequency link power control respectively. The radio frequency signals modulating the telecommand data are sent to 1 S-band spread-spectrum transponder and 1 X-band spread-spectrum transponder simultaneously by the S-band ground left-right hand transceiver shared antenna, the X-band TT&C / data transmission integrated ground antenna, and the Ka-band TT&C / data transmission integrated ground transceiver antenna.

[0021] Preferably, the satellite radio frequency link control device capable of software remote control reconfiguration simultaneously has 5 TT&C downlinks, including: the radio frequency signals respectively received by the S-band ground left-right hand transceiver shared antenna and the X-band TT&C / data transmission integrated ground antenna are frequency-converted by the S-band downconverter of the S frequency band to 70 MHz intermediate frequency processing and by the X-band downconverter of the X frequency band to 720 MHz intermediate frequency processing, and then the intermediate frequency signals in the non-coherent spread-spectrum mode are combined through signal combination and output to the demodulation channel of the VPX bus integrated spread-spectrum baseband, and the S-band spread-spectrum telemetry information and the X-band spread-spectrum telemetry information are parsed and identified through code division multiple access processing.

[0022] Preferably, the satellite RF link control device that can be remotely controlled and reconfigured by software receives RF signals respectively received by the S-band ground left-right hand transceiver shared antenna, the X-band TT&C and data transmission integrated ground antenna, and the Ka-band TT&C-data transmission integrated ground transceiver antenna. After being processed by the S frequency converter down-converter and the X down-converter, and the Ka-band frequency conversion of the 17GHz-34GHz wide-band Ka up-down converter to 70MHz intermediate frequency, the intermediate frequency signals in the non-coherent spread spectrum mode are combined through signal combining and output to the demodulation channel of the VPX bus integrated spread spectrum baseband. The S spread spectrum telemetry information, X spread spectrum telemetry information, and Ka spread spectrum telemetry information are analyzed and identified through code division multiple access processing.

[0023] Preferably, the satellite RF link control device that can be remotely controlled and reconfigured by software performs X and Ka band link settings and baseband function reconstruction. By sending the Ka satellite-to-ground mode satellite-ground setting instruction chain through the command terminal network, when setting that the Ka satellite-ground channel is transmitted and the X satellite-ground data transmission channel is not transmitted, the Ka frequency converter is remotely controlled by software to turn on the signal output, and the X frequency converter is turned off to output the signal through the software remote network. The system processes 2 Ka downlink RF signals and analyzes the data.

[0024] Preferably, the 2 Ka downlink signals of the satellite RF link control device that can be remotely controlled and reconfigured by software are split into the Ka down-converter and the Ka down-converter through the link attenuation adjustment and power splitter / combiner of the satellite RF link control device, and then respectively sent to the two demodulators of the VPX data transmission integrated baseband to provide signal input, and are forwarded to the data transmission server through the network for data transmission frame format judgment and payload data analysis; the on-orbit mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through the preparation of the instruction chain and networked reconfigurable control.

[0025] Preferably, the satellite RF link control device that can be remotely controlled and reconfigured by software performs link setting and baseband function reconstruction. The 4 X downlink links select two X downlink signals through the two 1*2 switch matrices of the satellite RF link control device, and are combined with the signals after the two Ka down-conversion processes respectively to provide signal input to the two demodulators of the VPX data transmission integrated baseband, and are forwarded to the data transmission server through the network for data transmission frame format judgment and payload data analysis.

[0026] Preferably, when the satellite RF link control device capable of software remote control and reconstruction sends the X-to-ground mode satellite-ground setting instruction chain through the command terminal network and sets that the Ka satellite-ground channel is not downloaded and the X satellite-ground data transmission downlink channel is downloaded, it controls the Ka frequency converter to close the signal output and the X frequency converter to turn on the signal output through software remote network control. The system can remotely reconfigure and switch any two X downlink RF signals from 4 X downlink channels through software macro configuration and analyze the data; when the Ka channel is not downloaded and the X data transmission downlink channel is downloaded, it controls the X frequency converter to turn on the signal output through software remote network control and controls the Ka frequency converter to close the signal output through software macro configuration and remote reconfiguration. The system optionally processes and analyzes the data of 2 X downlink RF signals; the on-board mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through programming the instruction chain and networked reconfiguration control.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) Through software remote control and reconstruction, the present invention supports multi-band RF link control of S band, X band, Ka band, and L band, can flexibly configure various RF link combinations, and meets complex satellite communication requirements;

[0029] (2) Through the 2*12 switch matrix and VPX bus integrated measurement and control baseband, the networked reconfiguration of 18 RF communication test links and 12 RF monitoring links is realized, and complex RF links can be efficiently managed and controlled;

[0030] (3) Through the remote instruction sending terminal and networked control, the automatic configuration and link setting of the satellite-ground test mode are realized, reducing manual intervention and improving the test efficiency and accuracy;

[0031] (4) The present invention integrates multiple functions such as measurement and control, data transmission, and navigation, and reduces the hardware complexity and system cost by multiplexing RF links and baseband devices.

[0032] (5) It has the functions of 12-channel RF link status monitoring, spectrum recording, power measurement, and threshold overrun alarm, can monitor the system status in real time, and ensure the stability and reliability of the communication link.

[0033] (6) The present invention solves the requirements for link control of multi-band complex channels and switching of satellite-ground test modes during satellite in-orbit radio frequency tests, and can support multiple link combinations such as S spread-spectrum TT&C, X-band spread-spectrum TT&C, Ka-band spread-spectrum TT&C, Ka-band data transmission, and X-band data transmission simultaneously; it solves the problems of multiple combined modes of radio frequency communication channels at the test site and complex mode setting processes. By designing a software instruction chain macro configuration method, remote control network reconfiguration of complex radio frequency channels is achieved; it solves the problem of the need to monitor and record radio frequency signals for 12 key channels. Through a 2*12 switch matrix and a VPX bus integrated TT&C baseband, long-term data storage and signal monitoring of radio frequency signals are realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Other features, objects, and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0035] Figure 1 It is a structural block diagram of a multi-band satellite radio frequency link control method that can be remotely controlled and reconfigured by software network. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those of ordinary skill in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0037] Embodiment

[0038] The present invention provides a satellite radio frequency link control device that can be remotely controlled and reconfigured by software. By sending an instruction chain, the on-orbit working mode, channel parameters of the ground radio frequency link control device, switch selection status, operating frequency points and switch states of the frequency converters of each channel, VPX TT&C integrated baseband, VPX data transmission integrated baseband parameters, etc. are synchronously set and loaded in the form of system macro definitions; at the same time, it has the functions of monitoring the status of 12-channel radio frequency links, spectrum recording, power measurement, and threshold overrun alarm.

[0039] Figure 1The invention discloses a multi-band satellite radio frequency link control method capable of software network remote control reconfiguration, including the transmission channel relationship of each satellite-ground link. Satellite signals are received and sent through an X-band measurement and control digital transmission integrated ground antenna 1, an S-band ground left-right rotation transmission and reception shared antenna 2, an L-band ground transmission antenna 3, and a Ka-band measurement and control-digital transmission integrated ground transmission and reception antenna 4. The invention supports software remote control reconfiguration of satellite radio frequency link control equipment 5 macro parameter loading, and reconstructs multiple radio frequency link relationships with an S measurement and control up / down converter 6, an X spread spectrum measurement and control up / down converter 7, a Ka up / down converter 8, an integrated measurement and control integrated baseband 9 based on a VPX bus, and a digital transmission integrated baseband 10 based on a VPX architecture, so as to realize the functional reconstruction of multiple combinations of various links such as S spread spectrum measurement and control, X-band spread spectrum measurement and control, Ka-band spread spectrum measurement and control, Ka-band digital transmission, and X-band digital transmission.

[0040] The present invention designs a link setting instruction chain sent by a remote instruction sending terminal, a networked and reconfigurable configuration satellite and ground system S spread spectrum communication mode, X spread spectrum measurement and control communication test mode, Ka spread spectrum measurement and control communication test mode, X-to-ground data transmission communication link mode, Ka-to-ground data transmission communication link mode, and L-band navigation link mode, a total of 18 links and combination scenarios of various working modes.

[0041] The invention multiplexes the radio frequency uplink and downlink links for Ka-band ground spread spectrum measurement and control and S-band ground measurement and control, and multiplexes the integrated measurement and control baseband uplink modulation and downlink demodulation; designs the radio frequency link for X-band ground data transmission downlink and Ka-band ground data transmission downlink, and multiplexes the VPX data transmission integrated baseband demodulator; designs the radio frequency link and the GNSS receiver to be shared by two radio frequency satellite access channels of the GNSS receiver, and performs the X-band and Ka-band data transmission demodulation and data analysis in time-sharing; designs the link setting instruction chain sent by the remote instruction sending terminal , the networked reconfigurable configuration satellite and ground system S spread spectrum communication mode, X spread spectrum measurement and control communication test mode, Ka spread spectrum measurement and control communication test mode, X-to-ground data transmission communication link mode, Ka-to-ground data transmission communication link mode, L-band navigation link mode, a total of 18 links and combination scenarios of various working modes, by sending the satellite-to-ground task setting command chain (including satellite on-board status setting commands and ground link macro parameter configuration commands), the link setting and baseband function reconstruction of the RF test system including four frequency bands including L, S, X, and Ka are realized.

[0042] The present invention provides a multi-band satellite radio frequency link network control method that can be remotely controlled and reconfigured by software. It has an external shape of a 4U standard rack-mounted chassis. This control method altogether has the network reconfiguration and configuration capabilities for 18 radio frequency communication test links and 12 radio frequency monitoring links simultaneously. The satellite radio frequency link control device that can be remotely controlled and reconfigured by software is designed with 12 monitoring links. Through a 2*12 switch matrix, the channels can be switched to conduct microwave power measurement, long-term data storage of radio frequency spectrum, and signal monitoring.

[0043] It is designed to send a macro configuration instruction chain for the satellite-ground test mode through a remote instruction sending terminal, including the network reconfigurable satellite and ground system S spread spectrum communication mode, macro configuration network reconfigurable X spread spectrum measurement and control communication test mode, macro configuration network reconfigurable Ka spread spectrum measurement and control communication test mode, macro configuration network reconfigurable X ground data transmission communication link mode, macro configuration network reconfigurable Ka ground data transmission communication link mode, and macro configuration network reconfigurable L-band navigation link mode, totaling 18 links and combined scenarios of various working modes. Through the instruction chain, the link settings and baseband function reconfiguration of the radio frequency test system including four frequency bands of L, S, X, and Ka are realized. By sending a satellite-ground task setting instruction chain (including satellite on-board state setting instructions and ground link macro parameter configuration instructions), the satellite S spread spectrum communication mode, the start output, frequency point, and attenuation value of the ground S frequency converter are set, the spread spectrum working mode of the VPX integrated measurement and control baseband is set, and the link attenuation of the satellite radio frequency link control device that can be remotely controlled and reconfigured by software is set.

[0044] The 18 radio frequency links of the satellite radio frequency link control device that can be remotely controlled and reconfigured by software refer to the network reconfiguration and configuration capabilities of 5 measurement and control uplink links (including 2 S-band uplink spread spectrum measurement and control links, 2 X-band uplink spread spectrum measurement and control links, and 1 Ka-band uplink spread spectrum measurement and control link), 5 measurement and control downlink links (including the network reconfiguration and configuration of 2 S-band downlink spread spectrum measurement and control links, 2 X-band downlink spread spectrum measurement and control links, and 1 Ka-band downlink spread spectrum measurement and control link). It has 2 L-band (1.0 GHz - 2 GHz) navigation uplink links (including GNSS navigation uplink 1 and GNSS navigation uplink 2); it has the network reconfiguration and configuration capabilities of 4 X-band (7 GHz - 10 GHz) data transmission downlink links and 2 Ka-band (17 GHz - 34 GHz) ground data transmission downlink links. The 12 radio frequency monitoring links include 10 measurement and control channel monitoring links, 1 navigation channel monitoring link, and 1 X data transmission channel monitoring link.

[0045] The satellite RF link control device capable of software remote control and reconstruction has 5 TT&C uplink channels at the same time. The first path modulator of the VPX bus integrated spread spectrum baseband divides the non-coherent spread spectrum modulation signal of the same telecommand information into two paths through the combiner and power divider 1 in the satellite RF link control device, and respectively provides one path of S upconverter 1 and one path of X upconverter 1, and then performs RF link power control respectively: for the S link, it is S upconverter 1 -> programmable attenuator 2 -> coupler 2 -> S circulator 1 (programmable attenuator attenuation setting); for the X link, it is X upconverter 1 -> programmable attenuator 1 -> coupler 1 -> X circulator 1 (programmable attenuator attenuation setting). The RF signals modulating the telecommand data are sent to one path of S spread spectrum transponder and one path of X spread spectrum transponder by the S-band ground left and right hand circular polarization shared antenna and the X-band TT&C and data transmission integrated ground antenna at the same time. The second path modulator of the VPX bus integrated spread spectrum baseband divides the non-coherent spread spectrum modulation signal of the same telecommand information into three paths through the combiner and power divider 2 in the satellite RF link control device, and respectively provides one path of S upconverter 1, one path of X upconverter 1 and one path of Ka upconverter 1, and then performs RF link power control respectively (programmable attenuator 9 performs signal strength attenuation control in the range of 0 - 110 dB for the Ka band). The RF signals modulating the telecommand data are sent to one path of S spread spectrum transponder and one path of X spread spectrum transponder by the S-band ground left and right hand circular polarization shared antenna, the X-band TT&C and data transmission integrated ground antenna, and the Ka-band TT&C - data transmission integrated ground transceiver antenna at the same time.

[0046] The satellite RF link control device capable of software remote control and reconstruction has 5 TT&C downlink channels at the same time. The RF signals received by the S-band ground left and right hand circular polarization shared antenna and the X-band TT&C and data transmission integrated ground antenna respectively are frequency-converted to 70 MHz intermediate frequency by the S-band frequency converter downconverter 1 for the S band and to 720 MHz intermediate frequency by the X downconverter 1 for the X band, and then the intermediate frequency signals in the non-coherent spread spectrum mode are combined through signal combination and output to the demodulation channel 1 of the VPX bus integrated spread spectrum baseband. The baseband device analyzes and identifies the S spread spectrum telemetry information and the X spread spectrum telemetry information through code division multiple access processing.

[0047] The satellite RF link control device capable of software remote control and reconstruction has the RF signals received by the S-band ground left and right hand circular polarization shared antenna, the X-band TT&C and data transmission integrated ground antenna, and the Ka-band TT&C - data transmission integrated ground transceiver antenna respectively frequency-converted to 70 MHz intermediate frequency by the S-band frequency converter downconverter 2 and the X downconverter 2 and the 17 GHz - 34 GHz wideband Ka up and down converter for the Ka band, and then the intermediate frequency signals in the non-coherent spread spectrum mode are combined through signal combination and output to the demodulation channel 2 of the VPX bus integrated spread spectrum baseband. The baseband device analyzes and identifies the S spread spectrum telemetry information, the X spread spectrum telemetry information, and the Ka spread spectrum telemetry information through code division multiple access processing.

[0048] The satellite RF link control device capable of software remote control and reconstruction performs link settings and baseband function reconstruction for frequency bands such as X and Ka. By sending the Ka satellite-to-ground mode satellite-ground setting instruction chain through the command terminal network, when setting the Ka satellite-ground channel for downlink and the X satellite-ground data transmission channel not for downlink, the Ka frequency converter can be remotely controlled through the software network to turn on the signal output, and the X frequency converter can be controlled to turn off the signal output. The system can normally process 2 Ka downlink RF signals and analyze the data.

[0049] The 2 Ka downlink signals of the satellite RF link control device capable of software remote control and reconstruction are split by the link attenuation adjustment and power splitter / combiner 5 of the satellite RF link control device to the Ka downconverter 3 and the Ka downconverter 4, and then respectively sent to the two demodulators of the VPX data transmission integrated baseband to provide signal input, and are forwarded through the network to the data transmission server for data transmission frame format judgment and payload data analysis; the on-board mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through the compilation of the instruction chain and networked reconfigurable control.

[0050] The satellite RF link control device capable of software remote control and reconstruction performs link settings and baseband function reconstruction. The 4 X downlink channels select two X downlink signals through the two 1*2 switch matrices of the satellite RF link control device, and are combined with the signals after the two Ka downconversion processes respectively to provide signal input to the two demodulators of the VPX data transmission integrated baseband, and are forwarded through the network to the data transmission server for data transmission frame format judgment and payload data analysis.

[0051] The satellite RF link control device capable of software remote control and reconstruction sends the X satellite-to-ground mode satellite-ground setting instruction chain through the command terminal network. When setting the Ka satellite-ground channel not for downlink and the X satellite-ground data transmission downlink channel for downlink, the Ka frequency converter can be remotely controlled through the software network to turn off the signal output, and the X frequency converter can be controlled to turn on the signal output. The system can normally remotely reconfigure and switch any two X downlink RF signals from the 4 X downlink channels through software macro configuration and analyze the data. When the Ka channel is not for downlink and the X data transmission downlink channel is for downlink, the X frequency converter can be remotely controlled through the software network to turn on the signal output, and the Ka frequency converter signal output can be turned off through software macro configuration and remote reconfiguration. The system can normally process and analyze the data of any 2 X downlink RF signals. The on-board mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through the compilation of the instruction chain and networked reconfigurable control.

[0052] Those skilled in the art know that, in addition to implementing the systems, devices, and their respective modules provided by the present invention in the form of pure computer-readable program code, the method steps can be logically programmed to enable the systems, devices, and their respective modules provided by the present invention to be implemented in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers, etc., to achieve the same program. Therefore, the systems, devices, and their respective modules provided by the present invention can be considered as a kind of hardware component, and the modules included therein for implementing various programs can also be regarded as the structures within the hardware component; the modules for implementing various functions can also be regarded as either software programs for implementing the methods or the structures within the hardware component.

[0053] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. Without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. A satellite radio frequency link control device that can be remotely controlled and reconstructed by software, characterized in that Including: Antenna system: The ground transceiver antennas in the S band, X band, and Ka band are respectively connected to the corresponding circulators; the circulators are used for signal separation and synthesis, sending the received signals to the subsequent processing units and sending the transmitted signals to the antennas; Signal processing unit: The signals in each frequency band are power-adjusted through programmable attenuators; the signals are converted to different frequency bands through frequency converters; the signals are power-distributed or combined through a combiner / splitter; Control and monitoring system: The monitoring branch is used to monitor the signal status; the power meter and spectrum analyzer are used to measure the power and frequency characteristics of the signals; the GNSS satellite navigation simulator provides positioning information; the VPX bus integrated measurement and control baseband is responsible for the control and data transmission of the overall system; Network and data processing: The gigabit test local area network connects the command sending terminal, telemetry analysis and processing database, telecommand framing processing workstation, telemetry data analysis workstation, and multi-channel remote sensing data fusion processing workstation to realize data transmission and processing; Switch matrix: The 2*12 switch matrix is used for signal path selection and switching to ensure that the signals can flow correctly to the required processing units; GPS receiver and transmitting antenna: The GPS receiver receives GPS signals for time synchronization and position information; the GPS transmitting antenna is used to send GPS signals; Data transmission subsystem: Processes the transmission of digital signals, including signal processing in the Ka band and X band; The antenna system, signal processing unit, control and monitoring system, network and data processing, switch matrix, GPS receiver and transmitting antenna, and data transmission subsystem are interconnected and remotely controlled and reconfigured through software to adapt to different mission requirements.

2. The satellite RF link control device capable of software remote control reconstruction according to claim 1, wherein The satellite radio frequency link control device is in the form of a 4U standard rack-mounted chassis, and at the same time has the network reconfiguration ability of 18 radio frequency communication test links and 12 radio frequency monitoring links, and performs microwave power measurement and long-term radio frequency spectrum data storage and signal monitoring through a 2*12 switch matrix; Send the satellite-ground test mode macro configuration instruction chain through the remote command sending terminal, and network-reconfigurable configuration of the satellite and ground system S spread-spectrum communication mode, macro configuration network-reconfigurable X spread-spectrum measurement and control communication test mode, macro configuration network-reconfigurable Ka spread-spectrum measurement and control communication test mode, macro configuration network-reconfigurable X ground data transmission communication link mode, macro configuration network-reconfigurable Ka ground data transmission communication link mode, macro configuration network-reconfigurable L-band navigation link mode, a total of 18 links and the combined scenarios of each working mode, and realize link setting and baseband function reconstruction of the radio frequency test system including the L, S, X, and Ka frequency bands through the instruction chain; Set the satellite S spread-spectrum communication mode, set the start output, frequency point, and attenuation value of the ground S frequency converter, set the spread-spectrum working mode of the VPX integrated measurement and control baseband, and set the link attenuation of the satellite radio frequency link control device that can be remotely controlled and reconfigured by software by sending the satellite-ground mission setting instruction chain.

3. The satellite RF link control device capable of being remotely reconstructed by software according to claim 1, characterized in that 18 radio frequency communication test links mean that it simultaneously has 5 networked reconfiguration configurations for TT&C uplink, including 2 S-band uplink spread-spectrum TT&C links, 2 X-band uplink spread-spectrum TT&C links, and 1 Ka-band uplink spread-spectrum TT&C link; 5 networked reconfiguration configurations for TT&C downlink, including 2 networked reconfiguration configurations for S-band downlink spread-spectrum TT&C links, 2 X-band downlink spread-spectrum TT&C links, and 1 Ka-band downlink spread-spectrum TT&C link; 2 L-band navigation uplinks of 1.0 GHz - 2 GHz; 4 X-band logarithmic data transmission downlinks of 7 GHz - 10 GHz and 2 networked reconfiguration configurations for Ka-band earth data transmission downlinks of 17 GHz - 34 GHz; 12 radio frequency monitoring links include 10 TT&C channel monitoring links, 1 navigation channel monitoring link, and 1 X data transmission channel monitoring link.

4. The satellite RF link control device capable of software remote control reconstruction according to claim 1, characterized in that, The satellite radio frequency link control device that can be remotely controlled and reconfigured by software simultaneously has 5 networked reconfiguration configurations for TT&C uplink, including: The first modulator of the VPX bus integrated spread-spectrum baseband divides the non-coherent spread-spectrum modulation signal with the same telecommand information into two paths through the combined power divider in the satellite radio frequency link control device, and respectively provides 1 S-band upconverter and 1 X-band upconverter, and then performs radio frequency link power control respectively. The radio frequency signals modulating the telecommand data are sent to 1 S-band spread-spectrum transponder and 1 X-band spread-spectrum transponder simultaneously by the S-band ground left-right hand transceiver shared antenna and the X-band TT&C / data transmission integrated ground antenna; The second modulator of the VPX bus integrated spread-spectrum baseband divides the non-coherent spread-spectrum modulation signal with the same telecommand information into three paths through the combined power divider in the satellite radio frequency link control device, and respectively provides 1 S-band upconverter, 1 X-band upconverter, and 1 Ka-band upconverter, and then performs radio frequency link power control respectively. The radio frequency signals modulating the telecommand data are sent to 1 S-band spread-spectrum transponder and 1 X-band spread-spectrum transponder simultaneously by the S-band ground left-right hand transceiver shared antenna, the X-band TT&C / data transmission integrated ground antenna, and the Ka-band TT&C / data transmission integrated ground transceiver antenna.

5. The satellite RF link control device capable of software remote control reconstruction according to claim 1, characterized in that, The satellite radio frequency link control device that can be remotely controlled and reconfigured by software simultaneously has 5 TT&C downlinks, including: The radio frequency signals received by the S-band ground left-right hand transceiver shared antenna and the X-band TT&C / data transmission integrated ground antenna respectively are frequency-converted by the S-band downconverter of the S frequency band to 70 MHz intermediate frequency processing and by the X-band downconverter of the X frequency band to 720 MHz intermediate frequency processing, and then the intermediate frequency signals in the non-coherent spread-spectrum mode are combined through signal combination and output to the demodulation channel of the VPX bus integrated spread-spectrum baseband, and the S-band spread-spectrum telemetry information and X-band spread-spectrum telemetry information are analyzed and identified through code division multiple access processing.

6. The satellite RF link control device capable of being remotely controlled and reconstructed by software according to claim 1, wherein The satellite RF link control device that can be remotely reconfigured by software receives RF signals respectively received by the S-band ground left and right hand circular polarization transceiver shared antenna, the X-band TT&C and data transmission integrated ground antenna, and the Ka-band TT&C-data transmission integrated ground transceiver antenna. After being processed by the S frequency converter downconverter and the X downconverter, and the 17GHz-34GHz wideband Ka up and down converter to convert the Ka band to 70MHz intermediate frequency, the intermediate frequency signals in the non-coherent spread spectrum mode are combined through signal combining and output to the demodulation channel of the VPX bus integrated spread spectrum baseband. The S spread spectrum telemetry information, X spread spectrum telemetry information, and Ka spread spectrum telemetry information are parsed and identified through code division multiple access processing.

7. The satellite RF link control device capable of being remotely controlled and reconstructed by software according to claim 1, wherein The satellite RF link control device that can be remotely reconfigured by software performs X and Ka band link settings and baseband function reconstruction. By sending the Ka ground mode satellite-ground setting instruction chain through the command terminal network, when setting that the Ka satellite-ground channel is downlinked and the X satellite-ground data transmission channel is not downlinked, the Ka frequency converter is remotely controlled to turn on the signal output and the X frequency converter is turned off through software remote network control, and the system processes the 2 Ka downlink RF signals and parses the data.

8. The satellite RF link control device capable of being remotely controlled and reconstructed by software according to claim 1, characterized in that, The 2 Ka downlink signals of the satellite RF link control device that can be remotely reconfigured by software are split by the link attenuation adjustment and power splitter / combiner of the satellite RF link control device to be sent to the Ka downconverters, and then respectively sent to the two demodulators of the VPX data transmission integrated baseband to provide signal input, and are forwarded through the network to the data transmission server for data transmission frame format judgment and payload data parsing; the on-orbit mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through programming the instruction chain and networked reconfigurable control.

9. The satellite radio frequency link control device capable of being remotely controlled and reconstructed by software according to claim 1, characterized in that The satellite RF link control device that can be remotely reconfigured by software performs link setting and baseband function reconstruction. The 4 X downlink signals are selected by the two 1*2 switch matrices of the satellite RF link control device to select two X downlink signals, which are combined with the signals after the two Ka downconversion processes respectively to provide signal input to the two demodulators of the VPX data transmission integrated baseband, and are forwarded through the network to the data transmission server for data transmission frame format judgment and payload data parsing.

10. The satellite radio frequency link control device capable of being remotely controlled and reconstructed by software according to claim 1, characterized in that, The satellite RF link control device that can be remotely reconfigured by software sends the X ground mode satellite-ground setting instruction chain through the command terminal network. When setting that the Ka satellite-ground channel is not downlinked and the X satellite-ground data transmission downlink channel is downlinked, the Ka frequency converter is remotely controlled to turn off the signal output and the X frequency converter is turned on through software remote network control, and the system remotely reconfigurably switches any two X downlink RF signals from the 4 X downlink channels through software macro configuration and parses the data; when the Ka channel is not downlinked and the X data transmission downlink channel is downlinked, the X frequency converter is remotely controlled to turn on the signal output through software remote network control, and the Ka frequency converter signal output is turned off through software macro configuration remote reconfiguration of the system, and the system optionally processes and analyzes the data of 2 X downlink RF signals; the on-orbit mode setting, ground baseband macro parameter loading, switch matrix switching, and frequency converter output state control are all realized through programming the instruction chain and networked reconfigurable control.

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