CN113315566B - Satellite ground comprehensive test system - Google Patents
Satellite ground comprehensive test system Download PDFInfo
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- CN113315566B CN113315566B CN202110540643.5A CN202110540643A CN113315566B CN 113315566 B CN113315566 B CN 113315566B CN 202110540643 A CN202110540643 A CN 202110540643A CN 113315566 B CN113315566 B CN 113315566B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0876—Aspects of the degree of configuration automation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a satellite ground comprehensive test system, which comprises a plurality of test devices and a telemetering monitoring terminal, wherein: in the testing process, the remote monitoring terminal sends a remote control command, and the satellite completes corresponding operation according to the remote control command under the support of the testing equipment; the payload data and the telemetry data acquired by satellite telemetry are also transmitted to the telemetry monitoring terminal under the support of the test equipment; the telemetry monitoring terminal receives and monitors payload data and telemetry data; the remote monitoring terminal comprises a plurality of configuration modules, and the plurality of configuration modules are used for automatically configuring a plurality of test devices respectively so as to realize the full coverage of test items; a plurality of configuration modules of the telemetry monitoring terminal respectively carry out automatic configuration on a plurality of test devices so as to expand on other ground test systems.
Description
Technical Field
The invention relates to the technical field of aerospace, in particular to a satellite ground comprehensive test system.
Background
The satellite high-speed data transmission system is mainly responsible for the transmission of payload data between the satellite and the ground station. Because the satellite high-speed data transmission system is the only way for exchanging data between the orbiting satellite and the ground, the satellite high-speed data transmission system must have high reliability, and therefore, before the satellite is launched, the satellite high-speed data transmission system needs to be strictly tested by a ground test system, the test indexes of the satellite high-speed data transmission system are various, and the test process is complex, so that ground test equipment is required to meet the differentiated test requirements. In addition, with the improvement of the satellite data processing capacity of the remote sensing satellite, the effective data volume of the load is greatly increased, and the satellite is required to carry out multi-channel and high-speed downlink data transmission. In order to verify the correctness of the transmission of the high-speed data stream on the satellite, a downlink data stream transmission test is required.
The ground test equipment comprises test equipment and a test computer (comprising a test terminal, a remote control terminal and a test server), and the test equipment is connected with the test computer through an Ethernet switch. In the testing process, the remote control terminal sends a remote control command, and the satellite completes corresponding operation according to the remote control command under the support of the testing equipment. The data collected by satellite telemetry is also transmitted to the test terminal with the support of the test equipment, and the test terminal receives and monitors the telemetry data. And the test server completes the operations of processing, forwarding, storing and the like of test data in the electrical measurement process.
According to wired and wireless test conditions of the satellite-borne high-speed data transmission system, states of the ground comprehensive test system are different. Under the wired state, the satellite equipment and the ground test equipment can be positioned in a test room with a short distance, so that the ground test equipment can be directly operated without remotely controlling the ground test equipment. And in a wireless state, the positions of the ground equipment and the satellite equipment are changed. To improve testing efficiency, dynamic configuration of the test system is required.
In order to meet the requirements of commercial satellite mass production and parallel testing, an integrated ground comprehensive testing system needs to be designed. The traditional ground test equipment for the data transmission system can only meet the basic test requirement of the data transmission system, and can only carry out single-channel test, most of the ground test equipment is purchased from abroad, the cost is high, the technical service is not timely, and due to the reasons of technical protection and the like, the local modification of the functions is difficult to carry out to meet the differentiated test requirement, so that the test efficiency is not high, and the development of the commercial satellite industry is restricted due to the high test cost.
Disclosure of Invention
The invention aims to provide a satellite ground comprehensive test system to solve the problem of low ground comprehensive test efficiency of the existing satellite data transmission.
In order to solve the above technical problem, the present invention provides a satellite ground integrated test system, which includes a plurality of test devices and a remote monitoring terminal, wherein:
in the testing process, the remote monitoring terminal sends a remote control command, and the satellite completes corresponding operation according to the remote control command under the support of the testing equipment;
the payload data and the telemetry data acquired by satellite telemetry are also transmitted to the telemetry monitoring terminal under the support of the test equipment;
the telemetry monitoring terminal receives and monitors payload data and telemetry data;
the remote monitoring terminal comprises a plurality of configuration modules, and the plurality of configuration modules are used for automatically configuring a plurality of test devices respectively so as to realize the full coverage of test items;
a plurality of configuration modules of the telemetry monitoring terminal respectively carry out automatic configuration on a plurality of test devices so as to expand on other ground test systems.
Optionally, in the satellite ground integrated test system, the satellite ground integrated test system is connected with the satellite data transmission system in a wired or wireless manner, and the test device is connected with the telemetry monitoring terminal through an ethernet switch.
Optionally, in the satellite ground integrated test system, according to different test project requirements, different test device configuration software is used, and parameters of each hardware device are configured at the same terminal, so that ground is subjected to dynamic system connection and test, and the test efficiency is improved.
Optionally, in the satellite ground integrated test system, the multiple test devices include a baseband processor, a down converter, a power meter, a spectrum analyzer, and a real-time signal analyzer, where:
the down converter is used for down-converting an X frequency band signal to an intermediate frequency, outputting an intermediate frequency signal and sending the intermediate frequency signal to the baseband processor;
the baseband processor is used for carrying out receiving test, demodulation test, simulation high-code-rate scientific test, remote sensing and telemetering application data development, and carrying out demodulation, decoding, descrambling, bit synchronization and frame synchronization on received intermediate-frequency signals by receiving and processing high-speed data signals;
the real-time signal analyzer is used for demodulating data in real time and displaying the error vector amplitude, the amplitude imbalance degree and the phase noise of the signal so as to detect the quality of the radio-frequency signal;
the power meter has the functions of automatically correcting the standard, correcting the temperature and correcting the bandwidth, and is used for testing the power loss of the radio frequency connection equipment and measuring the output power of a power device;
the frequency spectrograph detects the state of the frequency spectrum signal in real time and displays the signal frequency spectrum.
Optionally, in the satellite ground integrated test system, the telemetry monitor terminal includes a baseband processor configuration module, a frequency converter configuration module, a telemetry monitor module, a spectrum configuration module, a real-time signal analysis configuration module, a power meter configuration module, and an IO plug-in, where:
the baseband processor configuration module remotely calls a modulation and coding strategy configuration interface to configure the demodulation mode, the decoding mode and the storage mode of the baseband processor;
the frequency converter configuration module configures frequency points and attenuation information of the down converter;
the telemetry monitoring module is used for receiving and monitoring telemetry data;
the frequency spectrum configuration module calls a configuration interface of the frequency spectrograph through the IO plug-in unit and sets the frequency spectrum of the frequency spectrograph;
the real-time signal analysis configuration module is used for configuring parameters of the real-time signal analyzer;
and the power meter configuration module is used for configuring the parameters of the power meter.
Optionally, in the satellite ground integrated test system, the satellite ground integrated test system further includes a data transmission ground inspection server, the test device is connected to the data transmission ground inspection server through an ethernet switch, and the data transmission ground inspection server completes processing, forwarding and storing operations of payload data;
the data transmission ground inspection server runs ground inspection software and stores data through a disk array, and the ground inspection software is used for analyzing data streams, framing and sub-packaging the data streams and then transmitting the data streams to the remote monitoring terminal.
Optionally, in the satellite ground integrated test system, the baseband processor, the down converter, the power meter, the frequency spectrograph, the real-time signal analyzer, and the data transmission ground inspection server all have independent network ports, and the power meter and the frequency spectrograph both have an operation panel and a software configuration interface.
Optionally, in the satellite ground integrated test system, the satellite ground integrated test system receives an analog signal source from a satellite data transmission system, and further includes a receiving antenna, an oscilloscope, an image data processor, and a ground detection accessory, where:
the ground detection accessory comprises a high-frequency cable, a waveguide coaxial converter, a high-frequency adapter, a power divider, a high-power attenuator, a fixed power attenuator and an adjustable attenuator.
Optionally, in the satellite ground integrated test system,
the satellite ground comprehensive test system performs desktop test and thermal test on a satellite in a wired state, EMC test, mechanical test and satellite-ground butt joint test in a wireless state.
Optionally, in the satellite ground integrated test system, the satellite ground integrated test system is in different states according to a wired test state or a wireless test state of a satellite data transmission system;
in a wired test state, the satellite data transmission system is directly connected with the high-power attenuator, the satellite equipment and the ground test equipment are positioned in a test room with a short distance, the test equipment is directly operated, and the test equipment is not remotely controlled;
under the wireless test state, the satellite data transmission system is connected with the data transmission antenna, the data transmission antenna is in wireless communication with the receiving antenna, the data transmission antenna is connected with the fixed power attenuator through the directional coupler, the positions of the test equipment and the satellite equipment are changed, and the satellite ground comprehensive test system is dynamically configured to improve the test efficiency.
In the satellite ground comprehensive test system provided by the invention, the telemetering monitoring terminal using a plurality of configuration modules is provided, the plurality of configuration modules are used for automatically configuring a plurality of test devices respectively, so that the test project full coverage is realized, the satellite ground comprehensive test system has better practical value, can be popularized and used in other ground test systems, and has better expansibility and high efficiency. The invention can also use different testing equipment configuration software according to different testing project requirements, and configure the parameters of each hardware equipment at the same terminal, thereby being beneficial to the ground to carry out dynamic system connection and test and further improving the testing efficiency.
Drawings
FIG. 1 is a schematic diagram illustrating a connection status of a ground integrated test system in a wired test status according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a connection status of a comprehensive test system under a wireless test status according to another embodiment of the present invention;
FIG. 3 is a schematic topology diagram of a satellite ground integrated test system according to another embodiment of the present invention;
FIG. 4 is a schematic topology of another embodiment of a telemetry monitor terminal of the present invention;
shown in the figure: 10-a telemetry monitoring terminal; 11-baseband processor configuration module; 12-a frequency converter configuration module; 13-a telemetry monitoring module; 14-a spectrum configuration module; 15-a real-time signal analysis configuration module; 16-a power meter configuration module; 17-IO plug-in; 20-an ethernet switch; 21-a network port; 22-test equipment; 31-a baseband processor; a 32-down converter; 33-a real-time signal analyzer; 34-a spectrometer; 35-a power meter; 41-analog signal source (satellite data transmission system); 42-a receiving antenna; 43-oscilloscope; 44-an image data processor; 45-high frequency cables; 46-power divider; 47-high power attenuator; 48-an adjustable attenuator; 49-fixed power attenuator; 50-a data transmission ground inspection server; 51-ground detection integrated processor; 52-a data reception handler; 53-PC machine; 61-a power supply system; 62-satellite-borne control center; 63-load; 71-a data transmission antenna; 72-directional coupler.
Detailed Description
The satellite ground comprehensive test system provided by the invention is further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.
The invention provides a satellite ground comprehensive test system, which aims to solve the problem of low ground comprehensive test efficiency of the existing satellite data transmission.
In order to realize the above idea, the present invention provides a satellite ground integrated test system, wherein a satellite data transmission system is connected with the ground integrated test system in a wired or wireless manner, the satellite ground integrated test system comprises a plurality of test devices and a telemetering monitoring terminal, the test devices are connected with the telemetering monitoring terminal through an ethernet switch, wherein: in the testing process, the remote monitoring terminal sends a remote control command, and the satellite completes corresponding operation according to the remote control command under the support of the testing equipment; the payload data and the telemetry data acquired by satellite telemetry are also transmitted to the telemetry monitoring terminal under the support of the test equipment, and the telemetry monitoring terminal receives and monitors the payload data and the telemetry data; the telemetry monitoring terminal comprises a baseband processor configuration module, a frequency converter configuration module, a telemetry monitoring module, a frequency spectrum configuration module, a real-time signal analysis configuration module and a power meter configuration module.
According to wired and wireless test conditions of the satellite-borne high-speed data transmission system, states of the ground comprehensive test system are different. The connection state of the ground integrated test system under different test states is shown in fig. 1-2. The satellite carries a power supply system 61, a satellite-borne control center 62 and a load 63, and the satellite data transmission system 41 is connected with the ground integrated test system in a wired or wireless mode.
In the wired state (the satellite data transmission system 41 is directly connected with the high-power attenuator 47), the satellite equipment and the ground test equipment can be located in a test room with a short distance, so that the ground test equipment can be directly operated without being remotely controlled. In a wireless state (the satellite data transmission system 41 is connected with the data transmission antenna 71, the data transmission antenna 71 is in wireless communication with the receiving antenna 42, and is connected with the fixed power attenuator 49 through the directional coupler 72), the positions of the ground equipment and the satellite equipment are changed. To improve testing efficiency, dynamic configuration of the test system is required.
Because the power device and the signal transmission equipment have specific input power ranges, the inlet power of the down converter 32 is between-10 and-60 dbm, the inlet power of the baseband processor 31 is between-10 and-50 dbm, the inlet power of the frequency spectrograph 34 is required to be less than +30dbm, and the inlet power of radio frequency accessories is mostly less than +30dbm. Therefore, in the wired state and the wireless state, the link condition changes, and the device connection condition inevitably changes. The ground equipment changes position, which brings inconvenience to the test. To improve testing efficiency, dynamic configuration of the test system is required.
< example one >
The present embodiment provides a ground integrated test system for satellite data transmission, wherein the satellite data transmission system is connected with the ground integrated test system in a wired or wireless manner, as shown in fig. 4, the ground integrated test system for satellite data transmission comprises a plurality of test devices 22 and a telemetry monitor terminal 10, the test devices 22 are connected with the telemetry monitor terminal 10 through an ethernet switch 20, wherein: in the testing process, the telemetering and monitoring terminal 10 sends a remote control instruction, and the satellite completes corresponding operation according to the remote control instruction under the support of the testing equipment 22; the payload data and the telemetry data collected by satellite telemetry are also transmitted to the telemetry monitoring terminal 10 under the support of the test equipment 22, and the telemetry monitoring terminal 10 receives and monitors the payload data and the telemetry data; the telemetry monitor terminal 10 includes a baseband processor configuration module 11, a frequency converter configuration module 12, a telemetry monitor module 13, a spectrum configuration module 14, a real-time signal analysis configuration module 15, and a power meter configuration module 16.
As shown in fig. 3, in the terrestrial integrated test system for satellite data transmission, the plurality of test equipments 22 includes a baseband processor 31, a down-converter 32, a power meter 35, a frequency spectrograph 34 and a real-time signal analyzer 33. The structure of the existing ground comprehensive test system based on the satellite-borne high-speed data transmission system is shown in fig. 3, and the present embodiment configures software in the system based on existing hardware. The specific hardware includes that the down converter 32 is configured to down convert an X-band signal to an intermediate frequency, output an intermediate frequency signal, and send the intermediate frequency signal to the baseband processor 31; the baseband processor 31 is used for performing receiving test, demodulation test, simulation high-rate scientific test, remote sensing and telemetering application data development, and demodulating, decoding, descrambling, bit synchronization and frame synchronization on the received intermediate-frequency signal by receiving and processing the high-speed data signal; the real-time signal analyzer 33 is used for demodulating data in real time, and displaying Error Vector Magnitude (EVM), magnitude imbalance and phase noise of the signal so as to detect the quality of the radio frequency signal; the power meter 35 has the functions of automatically correcting the standard, correcting the temperature and correcting the bandwidth, and is used for testing the power loss of the radio frequency connection equipment and measuring the output power of a power device; the frequency spectrograph 34 detects the state of the frequency spectrum signal in real time and displays the signal frequency spectrum.
Specifically, in the ground integrated test system for satellite data transmission, the telemetry monitor terminal 10 further includes an IO plug-in 17, wherein: the baseband processor configuration module 11 remotely calls a modulation and coding policy configuration interface to configure a demodulation mode, a decoding mode, and a storage mode of the baseband processor 31; the frequency converter configuration module 12 configures the frequency point and attenuation information of the down converter 32; the telemetry monitoring module 13 is used for receiving and monitoring telemetry data; the spectrum configuration module 14 calls a configuration interface of the spectrometer 34 through the IO plug-in 17 to set the spectrum of the spectrometer 34; the real-time signal analysis configuration module 15 performs parameter configuration of the real-time signal analyzer 33; the power meter configuration module 16 configures parameters of the power meter 35. In the development stage of satellite data transmission system, a ground integrated test system is required to complete various tests, including: the ground comprehensive test system for satellite data transmission is used for carrying out desktop test and thermal test on a satellite in a wired state, EMC test, mechanical test and satellite-ground butt joint test in a wireless state.
In addition, in the ground integrated test system for satellite data transmission, the ground integrated test system for satellite data transmission further comprises a data transmission ground inspection server, the test equipment 22 is connected with the data transmission ground inspection server through an ethernet switch 20, the data transmission ground inspection server 50 comprises a ground inspection integrated processor (decryption machine) 51 and a data receiving processor 52, and the operations of processing, forwarding and storing the payload data are completed; the data transmission ground inspection server runs ground inspection software and stores data through a disk array, and the ground inspection software is used for analyzing data streams, framing and packetizing the data streams and then transmitting the data streams to the telemetering monitoring terminal 10. In the ground integrated test system for satellite data transmission, the baseband processor 31, the down converter 32, the power meter 35, the spectrum analyzer 34, the real-time signal analyzer 33 and the data transmission ground detection server all have independent network ports 21, and the power meter 35 and the spectrum analyzer 34 both have an operation panel and a software configuration interface.
Further, in the ground integrated test system for satellite data transmission, the ground integrated test system for satellite data transmission receives an analog signal source from a satellite data transmission system 41, and further includes a receiving antenna 42, an oscilloscope 43, an image data processor 44 and a ground inspection accessory, wherein: the ground detection accessory comprises a high-frequency cable 45, a waveguide coaxial converter, a high-frequency adapter, a power divider 46, a high-power attenuator 47, a fixed power attenuator 49 and an adjustable attenuator 48.
Aiming at the design of a satellite multi-channel, high-power and high-speed data transmission system, the embodiment provides a novel automatic dynamic test system, and the configuration of corresponding software is carried out on a test terminal, so that the effective functional performance test can be carried out on the satellite high-power and high-speed data transmission system under different test conditions and different test scenes.
In summary, the above embodiments have described in detail different configurations of the ground integrated test system for satellite data transmission, and it is understood that the present invention includes, but is not limited to, the configurations listed in the above embodiments, and any modifications made on the configurations provided in the above embodiments are within the scope of the present invention. One skilled in the art can take the content of the above embodiments to take the inverse three.
< example two >
The embodiment provides a ground comprehensive test method for satellite data transmission, which comprises the following steps: the satellite data transmission system 41 is connected with the ground integrated test system in a wired or wireless way, and a plurality of test devices 22 are connected with the telemetering and monitoring terminal 10 through the Ethernet switch 20; in the testing process, the baseband processor configuration module 11, the frequency converter configuration module 12, the telemetry monitoring module 13, the frequency spectrum configuration module 14, the real-time signal analysis configuration module 15 and the power meter configuration module 16 in the telemetry monitoring terminal 10 send various remote control instructions to configure corresponding testing equipment, and under the support of the testing equipment 22, a satellite completes corresponding operations according to different remote control instructions, and transmits and analyzes payload data; payload data and telemetry data collected by satellite telemetry are also transmitted to the telemetry monitor terminal 10 with the support of the test equipment 22, and the telemetry monitor terminal 10 receives and monitors the payload data and telemetry data.
Specifically, the satellite high-speed data ground integrated test system receives an analog signal source, and includes a receiving antenna 42, an oscilloscope 43, a down converter 32, a baseband processor (HDR) 31, an ethernet switch 20, a data transmission ground inspection server 50, a PC 53 (including the telemetry monitor terminal 10), a real-time signal analyzer 33, a spectrum analyzer 34, a power meter 35, ground inspection accessories (including a high-frequency cable 45, a waveguide coaxial converter, a high-frequency adapter, a power divider 46, a high-power attenuator 47, a fixed power attenuator 49, and an adjustable attenuator 48), and the like.
An X-band downconverter 32 performs downconversion of X-band signals to an intermediate frequency. The digital controlled oscillator is used for generating carrier frequency signals and receiving radio frequency signals, the carrier frequency signals are mixed with the received radio frequency signals, then the radio frequency signals are output through the low-pass filter, and finally intermediate frequency signals are output and sent to HDR and other subsequent baseband processing equipment. The operation panel can manually set the radio frequency input value and the attenuation value, and the device is provided with an independent network port.
The X baseband processor (HDR) 31 is mainly used for ground comprehensive testing of a satellite high-speed data transmission system and mainly completes receiving, demodulation testing, simulation high-code-rate science, remote sensing and remote measuring application data development. The receiving and processing of high-speed data signals are realized through the device, and demodulation, decoding, descrambling, bit synchronization and frame synchronization are realized on downlink input intermediate frequency signals, so that the device is one of main component devices of a ground detection system, and the device is provided with an independent network port.
The data transmission ground inspection server runs ground inspection software, large-capacity data are stored through a disk array, the ground inspection software can analyze data streams, the data streams are framed and packetized and then transmitted to a back-end application system, and the device is provided with an independent network port 21.
Due to the fact that the transmission bandwidth of the data transmission radio frequency signal is large, relevant radio frequency indexes such as EVM, amplitude imbalance degree and phase noise are measured by corresponding real-time signal analysis equipment needing large bandwidth. The real-time signal analyzer 33 can realize data real-time demodulation, visually display the signal EVM, the amplitude imbalance degree and the phase noise, directly reflect the quality of the radio-frequency signal, and the equipment has an independent network port.
The power meter 35 can realize a high-precision, wide-range power test. The high-speed data transmission ground test system adopts Agilent N1912A of Agilent company, has automatic standard, temperature and bandwidth correction functions, can test the power loss of radio frequency connection equipment with smaller attenuation, and can accurately measure the output power of a high-power device. The system comprises an independent network port 21, an operation panel and a software configuration interface.
The frequency spectrograph 34 can detect the state of the frequency spectrum signal in real time and display the signal frequency spectrum, and is provided with an independent network port 21, an operation panel and a software configuration interface.
In a conventional data transmission test system, a telemetry data monitoring terminal is used for checking the state of on-satellite equipment, so that only a telemetry monitoring interface is provided. However, the location of the surface equipment is different for each test. Therefore, in the present embodiment, by performing network layout and remote operation, all devices are connected to the same lan through the ethernet switch 20, and each device is operated at a single test terminal, so as to implement dynamic operation test and complete the test with maximum efficiency.
For the above-mentioned integrated ground test system, a dynamic test network needs to be configured, and various remote software is installed in the telemetry data monitoring terminal, and the software configuration is as shown in fig. 4.
As shown in fig. 4, the telemetry data monitoring terminal may configure HDRMCS configuration software, frequency converter configuration software, spectrum monitoring configuration software, power meter configuration software, real-time signal analysis configuration software, telemetry monitoring software, deio plug-in, etc. HDRMCS configuration software HDR Monitor can remotely call an MCS configuration interface to carry out demodulation, decoding and storage configuration on HDR. The frequency converter configuration software can configure frequency points and attenuation information. On the basis of the installation of the De IO plug-in, the frequency spectrum monitoring configuration software can synchronize the equipment configuration interface and correspondingly set the frequency spectrum. The power meter configuration software bench vue can perform power measurement software configuration. The real-time signal analysis configuration software can perform real-time signal analysis configuration. At the telemetering data monitoring terminal, a plurality of hardware devices can be set and operated at the same time, and the test process is accelerated.
In the satellite ground comprehensive test system provided by the invention, the telemetering monitoring terminal 10 using a plurality of configuration modules is provided, and the plurality of configuration modules are used for automatically configuring a plurality of test devices 22 respectively, so that the test project full coverage is realized, the satellite ground comprehensive test system has better practical value, can be popularized and used in other ground test systems, and has better expansibility and high efficiency. The invention can also use different testing equipment 22 to configure software according to different testing project requirements, and configure the parameters of each hardware equipment at the same terminal, thereby being beneficial to the ground to carry out dynamic system connection and testing and further improving the testing efficiency.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
The above description is only for the purpose of describing the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are intended to fall within the scope of the appended claims.
Claims (9)
1. A satellite ground integrated test system, comprising a plurality of test devices and a telemetry monitor terminal, wherein:
in the testing process, the remote monitoring terminal sends a remote control command, and the satellite completes corresponding operation according to the remote control command under the support of the testing equipment;
the payload data and the telemetry data acquired by satellite telemetry are also transmitted to the telemetry monitoring terminal under the support of the test equipment;
the telemetry monitoring terminal receives and monitors payload data and telemetry data;
the remote monitoring terminal comprises a plurality of configuration modules, and the plurality of configuration modules are used for automatically configuring a plurality of test devices respectively so as to realize the full coverage of test items;
a plurality of configuration modules of the telemetering monitoring terminal respectively carry out automatic configuration on a plurality of test devices so as to expand in other ground test systems;
the telemetering monitoring terminal comprises a baseband processor configuration module, a frequency converter configuration module, a telemetering monitoring module, a frequency spectrum configuration module, a real-time signal analysis configuration module, a power meter configuration module and an IO plug-in, wherein:
the baseband processor configuration module remotely calls a modulation and coding strategy configuration interface to configure the demodulation mode, the decoding mode and the storage mode of the baseband processor;
the frequency converter configuration module configures frequency points and attenuation information of a down converter;
the telemetry monitoring module is used for receiving and monitoring telemetry data;
the frequency spectrum configuration module calls a configuration interface of a frequency spectrograph through the IO plug-in unit and sets the frequency spectrum of the frequency spectrograph;
the real-time signal analysis configuration module is used for configuring parameters of the real-time signal analyzer;
and the power meter configuration module is used for configuring the parameters of the power meter.
2. The satellite earth integrated test system according to claim 1, wherein the satellite earth integrated test system is connected with the satellite data transmission system by wire or wireless, and the test device is connected with the telemetry monitor terminal by an ethernet switch.
3. The satellite ground integrated test system according to claim 1, wherein different test equipment configuration software is used according to different test project requirements, and parameters of each hardware equipment are configured at the same terminal, so that ground is subjected to dynamic system connection and test, and test efficiency is improved.
4. The satellite-terrestrial integrated test system of claim 1, wherein the plurality of test devices comprises a baseband processor, a down converter, a power meter, a spectrometer, and a real-time signal analyzer, wherein:
the down converter is used for down-converting an X frequency band signal to an intermediate frequency, outputting an intermediate frequency signal and sending the intermediate frequency signal to the baseband processor;
the baseband processor is used for carrying out receiving test, demodulation test, simulation high-code-rate scientific test, remote sensing and telemetering application data development, and carrying out demodulation, decoding, descrambling, bit synchronization and frame synchronization on received intermediate-frequency signals by receiving and processing high-speed data signals;
the real-time signal analyzer is used for demodulating data in real time and displaying error vector amplitude, amplitude imbalance and phase noise of the signals so as to detect the quality of the radio-frequency signals;
the power meter has the functions of automatically correcting the standard, correcting the temperature and correcting the bandwidth, and is used for testing the power loss of the radio frequency connection equipment and measuring the output power of a power device;
the frequency spectrograph detects the state of the frequency spectrum signal in real time and displays the signal frequency spectrum.
5. The satellite ground integrated test system of claim 4, further comprising a data transmission ground inspection server, wherein the test equipment is connected with the data transmission ground inspection server through an Ethernet switch, and the data transmission ground inspection server performs processing, forwarding and storing operations of payload data;
the data transmission ground inspection server runs ground inspection software and stores data through a disk array, and the ground inspection software is used for analyzing data streams, framing and sub-packaging the data streams and then transmitting the data streams to the remote monitoring terminal.
6. The satellite-terrestrial integrated test system of claim 5, wherein the baseband processor, the down-converter, the power meter, the spectrometer, the real-time signal analyzer, and the data transmission ground test server each have independent network ports, and wherein the power meter and the spectrometer each have an operating panel and a software configuration interface.
7. The satellite terrestrial integrated test system of claim 1, wherein the satellite terrestrial integrated test system receives an analog signal source from a satellite data transmission system, further comprising a receiving antenna, an oscilloscope, an image data processor, and a ground inspection accessory, wherein:
the ground detection accessory comprises a high-frequency cable, a waveguide coaxial converter, a high-frequency adapter, a power divider, a high-power attenuator, a fixed power attenuator and an adjustable attenuator.
8. The satellite terrestrial integrated test system according to claim 1,
the satellite ground comprehensive test system performs desktop test and thermal test on a satellite in a wired state, EMC test, mechanical test and satellite-ground butt joint test in a wireless state.
9. The satellite ground integrated test system according to claim 1, wherein the satellite ground integrated test system state is made different according to a satellite data transmission system wired test state or a wireless test state;
in a wired test state, the satellite data transmission system is directly connected with the high-power attenuator, the satellite equipment and the ground test equipment are positioned in a test room with a short distance, the test equipment is directly operated, and the test equipment is not remotely controlled;
under the wireless test state, the satellite data transmission system is connected with the data transmission antenna, the data transmission antenna is in wireless communication with the receiving antenna, the data transmission antenna is connected with the fixed power attenuator through the directional coupler, the positions of the test equipment and the satellite equipment are changed, and the satellite ground comprehensive test system is dynamically configured to improve the test efficiency.
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