CN111079303A - General commercial satellite affair simulation system and simulation method - Google Patents
General commercial satellite affair simulation system and simulation method Download PDFInfo
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- CN111079303A CN111079303A CN201911356061.0A CN201911356061A CN111079303A CN 111079303 A CN111079303 A CN 111079303A CN 201911356061 A CN201911356061 A CN 201911356061A CN 111079303 A CN111079303 A CN 111079303A
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Abstract
A universal commercial satellite house keeping simulation system and a simulation method relate to the technical field of space satellite simulation, and are provided for solving the problems that the existing commercial satellite house keeping simulation system has low universality, can not truly reflect a hardware state and can not fully simulate an in-orbit real running state of a satellite in a software simulation process and the like; the development progress of satellite housekeeping and attitude and orbit control software is accelerated; the universality is strong, the method is suitable for developing remote sensing satellites and communication satellites with different models, and the product cost of a project verification piece is saved; the simulation of the parts on the satellite is integrated, and meanwhile, the ground test system is also integrated, so that the working debugging and the use are convenient, and the working efficiency is favorably improved.
Description
Technical Field
The invention relates to the technical field of space satellite simulation, in particular to a universal commercial satellite mission simulation system and a simulation method.
Background
The proportion of commercial aerospace in the aerospace field in China is getting larger and larger, and the demand of the market on aerospace information products is increasing. The commercial satellite is used as an important direction for the development of the future aerospace industry, the launching period is short, the number is large, the types of the satellite are large, the function differentiation is large, and the scheme and the components are different. Meanwhile, in order to save cost and accelerate the development period, the development process from electrical parts, initial samples to positive samples in the traditional aerospace is broken through, and the products are directly produced by the positive sample assembly in one step. The satellite affair software is used as a satellite management center, is embedded software depending on hardware, is designed to determine whether the normal function of the satellite can be realized, plays a key role in the safety and the reliability of the satellite, and is the core component of the satellite. In view of the characteristics of the development of the domestic microsatellite, how to rapidly, efficiently and reliably develop the microsatellite housekeeping software becomes very important. In order to meet the development requirement of the satellite affair software of the microsatellite and promote the technical development of the satellite affair software on the aspects of engineering and theoretical research, the development of a generalized semi-physical simulation platform is imperative.
Currently, simulation systems are characterized as follows:
the satellite is developed for a certain specific type of satellite, and the defect is low in generalization;
software simulation is carried out on a PC, and the defect that the hardware state cannot be truly reflected is overcome;
most products adopt imported devices such as NI to build a hardware platform and are based on labVIEW interface programming, so that the defects that the imported product devices are expensive and are easily subjected to trade sanctions, device supply is influenced, and the in-orbit real running state of the satellite cannot be fully simulated are overcome.
Disclosure of Invention
The invention provides a generalized commercial satellite housekeeping simulation system and a simulation method, aiming at solving the problems that the conventional commercial satellite housekeeping simulation system is low in generalization, cannot truly reflect a hardware state in a software simulation process, cannot fully simulate an in-orbit real running state of a satellite and the like.
A universal commercial satellite affair simulation system comprises a satellite affair simulation computer, a cable switching device, a signal expansion device, a single-machine simulation computer, a program-controlled power supply, a database server, a debugging computer, a main control computer, a data analysis computer and a network switch; the method is characterized in that:
the satellite affair simulation computer is used for communicating with the stand-alone simulation computer, the database server, the debugging computer, the main control computer, the data analysis computer and the network switch to complete the state information acquisition and control of each stand-alone of the whole satellite;
the stand-alone simulation computer performs information interaction with the satellite affair simulation computer through different communication interfaces to simulate the real communication state of each stand-alone on the satellite;
the cable switching device is used for switching interface cables among the satellite affair simulation computer, the stand-alone simulation computer, the debugging computer, the main control computer, the data analysis computer and the program-controlled power supply, and interfaces of the debugging computer and the program-controlled power supply are led in and led out through the cable switching device;
the signal unfolding device is used for unfolding a signal path connecting point of the whole satellite affair simulation system; the realization mode is as follows: a drawer type expansion interface is adopted, and a switch and a test hole are arranged on a contact for debugging and signal measurement;
the program-controlled power supply provides power for the satellite affair simulation computer;
the database server is used for storing various data generated in the testing process and used for testing and checking and analyzing by developers;
the debugging computer is used for developing and debugging housekeeping software;
the main control computer is used as a test computer of the test simulation system and is used for controlling the whole test simulation and acquiring the state by running main control software;
the data analysis computer is used for checking and analyzing test data, generating a report and storing the data;
the network switch is used for connecting the database server, the debugging computer, the main control computer and the data analysis computer with the single-computer simulation computer respectively, and the single-computer simulation computer and the satellite simulation computer perform data information interaction through a bus interface to realize system intercommunication and interconnection.
A universal commercial satellite star simulation method is realized by the following steps:
step one, the main control computer sets parameters of a program control power supply and power-on operation;
developing, debugging and downloading a program to the housekeeping simulation computer by adopting a debugging computer;
thirdly, starting the single machine state engineering parameters by the single machine simulation computer, transmitting the single machine state engineering parameters to the satellite affair simulation computer through a bus, and sending a sailboard expansion signal and a satellite-rocket separation signal through the main control computer;
fourthly, the single-computer simulation computer carries out dynamic simulation;
fifthly, the housekeeping simulation computer collects the information parameters of the single-computer simulation computer for controlling the attitude of the whole satellite and simultaneously issues telemetering data;
and step six, the main control computer and the data analysis computer receive, display and store the telemetering data, and the main control computer starts a test sequence to start a debugging and developing star program.
The invention has the beneficial effects that: aiming at the characteristics of the domestic microsatellite development, the simulation system is mainly used for the rapid development of commercial satellite housekeeping and attitude and orbit control software and semi-physical simulation test.
The simulation system of the invention accelerates the development progress of satellite housekeeping and attitude and orbit control software; the universality is strong, the method is suitable for developing remote sensing satellites and communication satellites with different models, and the product cost of a project verification piece is saved;
the simulation system integrates the simulation of the components on the satellite and also integrates a ground test system, thereby being convenient for work debugging and use and being beneficial to providing the work efficiency.
Drawings
FIG. 1 is a schematic block diagram of a generalized commercial satellite mission simulation system according to the present invention;
FIG. 2 is a functional block diagram of a generalized commercial satellite mission simulation system according to the present invention;
FIG. 3 is a flow chart of a generalized commercial satellite mission simulation method according to the present invention.
Detailed Description
In the first embodiment, the embodiment is described with reference to fig. 1 and 2, and a generalized commercial satellite affair simulation system is provided, which adopts a generalized, modularized and informatization technology to develop a universal star affair computer simulator, a configurable onboard electronics simulation system, a multi-interface flexibly-configured communication interface and an intelligent system test interface, and integrates a set of commercial satellite affair simulation development platform.
The hardware is a semi-physical simulation platform mainly composed of a satellite affair simulation computer and a single-machine simulation computer, and running states on the satellite can be fully and truly simulated. The satellite affair simulation computer simulates a central computer on a satellite, and is responsible for communicating with each single machine of the whole satellite by adopting the same design method as the central computer on the satellite so as to complete the state acquisition and control of each single machine of the whole satellite; the single machine simulation computer simulates each single machine on the satellite, and the single machine simulation computer is respectively communicated with the satellite affair simulation computer through different communication interfaces, so that the real communication state on the satellite is fully simulated.
The system specifically comprises a satellite affair simulation computer, a cable switching device, a signal expansion device, a single-machine simulation computer, a program control power supply, a database server, a debugging computer, a main control computer, a data analysis computer and a network switch;
the satellite affair simulation computer is used for communicating with the stand-alone simulation computer, the database server, the debugging computer, the main control computer, the data analysis computer and the network switch to complete the state information acquisition and control of each stand-alone of the whole satellite;
the stand-alone simulation computer performs information interaction with the satellite affair simulation computer through different communication interfaces to simulate the real communication state of each stand-alone on the satellite;
the cable switching device is used for switching interface cables among the satellite affair simulation computer, the stand-alone simulation computer, the debugging computer, the main control computer, the data analysis computer and the program-controlled power supply, and interfaces of the debugging computer and the program-controlled power supply are led in and led out through the cable switching device;
the signal unfolding device is used for unfolding a signal path connecting point of the whole satellite affair simulation system; the realization mode is as follows: a drawer type expansion interface is adopted, and a switch and a test hole are arranged on a contact for debugging and signal measurement;
the program-controlled power supply provides power for the satellite affair simulation computer;
the database server is used for storing various data generated in the testing process and used for testing and checking and analyzing by developers;
the debugging computer is used for developing and debugging housekeeping software;
the main control computer is used as a test computer of the test simulation system and is used for controlling the whole test simulation and acquiring the state by running main control software;
the data analysis computer is used for checking and analyzing test data, generating a report and storing the data;
the network switch is used for connecting the database server, the debugging computer, the main control computer and the data analysis computer with the single-computer simulation computer respectively, and the single-computer simulation computer and the satellite simulation computer perform data information interaction through a bus interface to realize system intercommunication and interconnection.
In the embodiment, the house-keeping analog computer is used as a core component, and a board card cascade design mode is adopted, so that the house-keeping analog computer can be compatible with processors such as SPARC, ARM, DSP and the like which are commonly used in the aerospace at present; the hardware design of the single-computer simulation computer adopts a Pentium processor plus a hardware communication board card, the processor simulates the running logic of each single computer through software and can flexibly configure the communication mode and channel selection; the design and working mode of the satellite affair simulation computer and the single-machine simulation computer are suitable for simulation of various satellite platforms, and the universality is high.
The satellite affair simulation computer adopts a hardware architecture the same as that of the satellite borne computer, mainly comprises a power supply board, a CPU board and an external IO board card, and adopts an interface the same as that of the satellite borne computer as an external interface. And the house-keeping simulation computer is in data communication with the debugging computer through a debugging serial port or a CAN bus. And developing and verifying the housekeeping software by debugging the computer. The function of the debugging computer is mainly used for developing and verifying the housekeeping software and mainly comprises a commercial PC, a serial port communication card and a CAN bus communication card.
In this embodiment, the cable switching device mainly performs a switching function of an interface cable with a satellite simulation computer, and maintains a one-to-one correspondence relationship with the connection relationship between the cable switching device and the satellite simulation computer as much as possible, and redundant channels of the ground test equipment are also led out from the device for reservation processing. The interface between the debugging computer and the program-controlled power supply is also led in and out through the device. The cable switching device is used for switching interface cables among the satellite affair simulation computer, the stand-alone simulation computer, the debugging computer, the main control computer, the data analysis computer and the program control power supply so as to enable the physical connection relations among the systems to be in one-to-one correspondence, and the interfaces of the debugging computer and the program control power supply are led in and led out through the cable switching device.
In this embodiment, the signal expansion device is used to realize the expansion of the signal path connection point of the whole satellite simulation test platform, and the realization mode adopts a drawer type expansion interface, and the connection point is provided with a switch and a test hole, thereby facilitating the debugging of equipment users and the realization of the signal expansion function.
In this embodiment, the single-computer simulation computer mainly completes the simulation function of the satellite electronics and the dynamic simulation function, and mainly comprises a CPCI case, a main controller, and various functional boards. The CPCI bus test computer runs a real-time operating system VxWorks and a ProConOS running engine.
In this embodiment, the programmable power supply provides +28V and +5.2V power supplies for the housekeeping analog computer, and the output of the programmable power supply can be controlled by two modes: RS422 bus control and relay contact control of a single-machine analog computer.
In this embodiment, the database server is used to store various data generated during the test process, so that the test and development personnel can check and analyze the data. The main control computer is a main testing computer of the testing simulation platform, and the main control software is operated on the main control computer and used for controlling the whole testing simulation. The data analysis computer is mainly used for checking and analyzing test data, generating reports and the like. The method specifically comprises the following steps: the data Server is used for receiving data forwarded in a network, and receiving a telemetering packet forwarded by the star simulator software, dynamics forwarded dynamics data, a master control operation log, power supply information and the like in a subsystem test stage;
and in the whole satellite testing stage, the data forwarding module is used for receiving the data forwarded by the whole satellite network and carrying out packet picking on the received whole satellite data. And decoding, storing and forwarding the received telemetering original code and the received dynamic original code, and forwarding the data to the monitoring terminal.
In this embodiment, the network switch is responsible for connecting various network devices together to implement interworking.
In a second specific embodiment, the present embodiment is described with reference to fig. 3, and the present embodiment is a simulation method of a generalized commercial satellite mission simulation system according to the first specific embodiment, where the specific simulation process includes:
step one, the main control computer sets parameters of a program control power supply and power-on operation; whether the power supply parameters are normal or not is checked, the program control power supply supports multi-power supply and multi-channel configuration, improvement is facilitated, power distribution setting of the power supply, configuration of information such as power supply types, IP addresses, channel numbers and sampling frequencies of power supply and distribution and information such as the number of power supply and distribution are supported through a human-computer interface.
The power control function can uniformly schedule the management interface by calling the drive of the power, complete the control of the power by calling corresponding functions and commands in the power drive, and simultaneously monitor the voltage value and the current value of the power in real time;
step two, programming a star affair simulation computer program, and developing, debugging and downloading the program to the star affair simulation computer by adopting a debugging computer; and checking the running state of the software; if the abnormity occurs, the program is programmed again;
thirdly, starting the single-computer state engineering parameters by the single-computer simulation computer, transmitting the single-computer state engineering parameters to the satellite affair simulation computer through a bus, checking the running state, and restarting the satellite affair simulation computer if the running state is abnormal; if the state is normal, sending a sailboard unfolding signal and a satellite-rocket separation signal through a main control computer; checking whether the switching signal is normal or not, and resetting if the switching signal is abnormal; if normal, executing step four;
fourthly, the single-computer simulation computer carries out dynamic simulation;
fifthly, the satellite affair simulation computer collects information parameters (gyro speed information, star sensitive quad tree information, flywheel torque information and the like) of the single-computer simulation computer for controlling the attitude of the whole satellite, simultaneously sends telemetering data to a measurement and control answering machine of the single-computer simulator, and then sends the data to the analysis computer;
and step six, the main control computer and the data analysis computer receive, display and store the telemetering data, and the main control computer starts a test sequence to start a debugging and developing star program. The main control computer sends different test instruction sequences for testing the star affair program running in the star affair simulation computer in real time so as to achieve the purpose of real-time simulation.
In this embodiment, the test process of the stand-alone simulation computer is as follows: the test sequence refers to that the system automatically executes one by one according to the preset time and mode by reading the sequence script which is specified by the user and passes the system verification, and correspondingly displays and records the execution result; and the functions of pause, continuation and stop are supported in the running process.
And a friendly human-computer interaction interface is provided, when a sequence node is executed, the downward execution is continued only after the successful execution of the sequence node is completed, the operation is immediately stopped and quitted if an error sequence occurs, and the operation is also stopped if other parallel sequence scripts exist at the same time.
When the sequence is executed to a sequence node, the sequence node continues to execute downwards only after the sequence node is successfully executed, if an error sequence occurs, the sequence immediately stops exiting the operation, and if other parallel sequence scripts exist at the same time, the script also stops running. The sequence is supported with offset setting before being loaded and executed, the sequence can be appointed to be executed from the appointed sequence number, and the executed instruction displays the executed detailed information in the operation log.
And automatically forming a test report for the test process data, and writing the data in the test sequence running process into the report template according to the mapping relation through a report template predefined in advance by the system to generate the test report.
In this embodiment, the data analysis computer is mainly used for receiving data forwarded in a network, and in a subsystem test stage, the DataServer receives a telemetry packet forwarded by a satellite simulation computer simulator software, dynamics data forwarded by dynamics, a master control operation log, power supply information and the like;
and in the whole satellite testing stage, the data forwarding module is used for receiving the data forwarded by the whole satellite network and carrying out packet picking on the received whole satellite data.
And decoding, storing and forwarding the received telemetering original code and the received dynamic original code, and forwarding the data to the monitoring terminal.
Firstly, a protocol decoding tool; the data protocol configuration tool is one of core functions in the system, and can perform custom configuration modification and later expansion application according to a data transmission protocol of a user. The module is suitable for automatic identification of stream data according to types, and the protocol configuration file generated by the module is the basic input condition for the operation of modules such as data monitoring, data decoding, data storage and the like, so the module is one of important modules in the system.
The data protocol configuration tool is a spacecraft data communication protocol input and output tool developed based on EXCEL. The method is mainly responsible for the input of a communication protocol by a user and the generation of a standard protocol configuration file. The protocol configuration tool is the basis for data modeling and data decoding.
The data protocol configuration tool describes protocol data through an EXCEL format and is also used for decoding; the technology level adopts the bottom layer framework technology, provides a software bottom layer operation framework, UI components and service related components, and also considers compatible support of various databases in the database operation.
And secondly, data modeling and data modeling processing, wherein the data modeling and data modeling processing are mainly responsible for establishing a corresponding data management model for decoding and source code data to be stored in a database in the data receiving process. Data modeling is the basis for data storage, while data modeling relies on protocol profiles. The data model comprises a source code table, a decoding table and corresponding metadata table information corresponding to each data packet in the protocol. The functions comprise the establishment of a data model corresponding to the project protocol in a database and the difference comparison function of the existing model and the protocol file.
According to the protocol file selected by the user, the data models (source code table information, decoding table information and the like) of the corresponding types and version numbers in the database are obtained and compared with the protocol file selected by the user, and the comparison result (whether the data models with the same name and the same version number exist or not and whether the data packets have differences or not) is displayed on the interface.
Thirdly, data monitoring; the data monitoring component is responsible for receiving and distributing network data and system internal data, and the data classification comprises the following steps: network original code data, master control operation logs and power supply data.
The monitored data can be distributed to an inner decoding component, a storage component, a packaging component and a forwarding component through an observer interface.
The network protocols supported by the data listening component include: UDP, UDPGROUP, TCP.
The data listening component may listen for: network data reception (telemetry, dynamics data, etc.), master control operation log, power data, etc.
Fourthly, data forwarding; the data forwarding tool is responsible for converting the test data and the test information received by the system and then forwarding the test data and the test information to an internal test network, and a network protocol supported by the forwarding component comprises the following steps: UDP, UDPGROUP, TCP. This subassembly is divided into two parts: a data forwarding sub-module and a data packaging sub-module.
And the data forwarding sub-module is used for data forwarding operation and is mainly used for distributing and receiving instructions and data, the system automatically reads data in the test network, loads user configuration information in the memory and forwards the data according to the user configuration, and for a forwarding object, the system can automatically associate to a network target according to a set address and forwards related data. Meanwhile, for the contents forwarded all the times, the system provides a log recording function for later-stage tracing.
Fifthly, data package; and the data packet packaging sub-module is used for forwarding the packet data and realizing packaging operation and forwarding application of the received data points according to the configured packaging protocol. The package service can be automatically started along with the system, package threads are started according to user configuration, and data package operation of the external bus and the internal bus is carried out according to a protocol.
The data package submodule mainly has the following functions:
data package configuration: the configuration of the data unique identification (the unique identity number of the packaged object), the protocol identification ID (the protocol configuration EXCEL file associated with the decoding object and automatically loaded according to the protocol configuration file in the public configuration), the data notification (the packaged data output) and other contents is supported.
Sixthly, decoding data; the data decoding module is responsible for carrying out source code analysis on a related communication protocol configured by a user, in the decoding process of data, an external data packet is received through a UDP (user datagram protocol) or TCP (transmission control protocol) network protocol and is put into a source code queue, a data packet picking thread takes out source code data from the source code queue for picking up packets, a decoding thread takes out data from the decoding data queue and carries out unpacking, classification processing and calculation on the data according to an agreed data communication protocol, and a data packet can be reorganized and generated according to a certain data format and serves as a forwarded data source.
The system defaults to open a decoding thread for each decoding object for data processing, and the number of threads of the decoding object can also be manually configured. The method and the device are used for guaranteeing decoding thread control in the data receiving process, visually showing the data receiving process and the thread health state, and guaranteeing the stability and reliability of data receiving.
In the setting process, the system can set a storage switch, a forwarding mode, a forwarding network address setting, a subscription switch and the like for each decoding object, and organically combine the whole data communication service into a whole.
Seventhly, storing data; the data storage is responsible for storing data generated in the user test process, and the storage types supported by the data storage comprise: oracle, SqlServer, Excel. The data types supported by the data storage include: source code data storage, decoding data storage, master control log storage, master control power supply data storage and test task storage.
The data storage can set the number of threads opened by the storage object and the data submission frequency through flexible configuration so as to adapt to data storage with different frequencies and sizes. The data storage can also set whether the storage object stores the command or not so as to realize that the user controls the storage object at the client.
Claims (7)
1. A universal commercial satellite affair simulation system comprises a satellite affair simulation computer, a cable switching device, a signal expansion device, a single-machine simulation computer, a program-controlled power supply, a database server, a debugging computer, a main control computer, a data analysis computer and a network switch; the method is characterized in that:
the satellite affair simulation computer is used for communicating with the stand-alone simulation computer, the database server, the debugging computer, the main control computer, the data analysis computer and the network switch to complete the state information acquisition and control of each stand-alone of the whole satellite;
the stand-alone simulation computer performs information interaction with the satellite affair simulation computer through different communication interfaces to simulate the real communication state of each stand-alone on the satellite;
the cable switching device is used for switching interface cables among the satellite affair simulation computer, the stand-alone simulation computer, the debugging computer, the main control computer, the data analysis computer and the program-controlled power supply, and interfaces of the debugging computer and the program-controlled power supply are led in and led out through the cable switching device;
the signal unfolding device is used for unfolding a signal path connecting point of the whole satellite affair simulation system; the realization mode is as follows: a drawer type expansion interface is adopted, and a switch and a test hole are arranged on a contact for debugging and signal measurement;
the program-controlled power supply provides power for the satellite affair simulation computer;
the database server is used for storing various data generated in the testing process and used for testing and checking and analyzing by developers;
the debugging computer is used for developing and debugging housekeeping software;
the main control computer is used as a test computer of the test simulation system and is used for controlling the whole test simulation and acquiring the state by running main control software;
the data analysis computer is used for checking and analyzing test data, generating a report and storing the data;
the network switch is used for connecting the database server, the debugging computer, the main control computer and the data analysis computer with the single-computer simulation computer respectively, and the single-computer simulation computer and the satellite simulation computer perform data information interaction through a bus interface to realize system intercommunication and interconnection.
2. A generalized commercial satellite mission simulation system according to claim 1, wherein: the program-controlled power supply provides +28V and +5.2V power supplies for the satellite simulation computer, and the output mode of the program-controlled power supply is as follows: controlled by the RS422 bus and by the relay contacts of a stand-alone analog computer.
3. A generalized commercial satellite mission simulation system according to claim 1, wherein: the satellite affair simulation computer adopts the same hardware architecture as the satellite borne computer, and consists of a power supply board, a CPU board and an external IO board card, and an external interface adopts the same interface as the satellite borne computer; and the house-keeping simulation computer is in data communication with the debugging computer through a debugging serial port or a CAN bus.
4. A generalized commercial satellite mission simulation system according to claim 1, wherein: the single-computer simulation computer is composed of a CPCI case, a main controller and various functional board cards, and realizes on-satellite electronics simulation and dynamics simulation.
5. A generalized commercial satellite mission simulation system according to claim 1, wherein: the debugging computer is composed of a commercial PC, a serial port communication card and a CAN bus communication card.
6. The simulation method of the generalized commercial satellite mission simulation system according to claim 1, wherein: the method is realized by the following steps:
step one, the main control computer sets parameters of a program control power supply and power-on operation;
developing, debugging and downloading a program to the housekeeping simulation computer by adopting a debugging computer;
thirdly, starting the single machine state engineering parameters by the single machine simulation computer, transmitting the single machine state engineering parameters to the satellite affair simulation computer through a bus, and sending a sailboard expansion signal and a satellite-rocket separation signal through the main control computer;
fourthly, the single-computer simulation computer carries out dynamic simulation;
fifthly, the housekeeping simulation computer collects the information parameters of the single-computer simulation computer for controlling the attitude of the whole satellite and simultaneously issues telemetering data;
and step six, the main control computer and the data analysis computer receive, display and store the telemetering data, and the main control computer starts a test sequence to start a debugging and developing star program.
7. The simulation method according to claim 6, wherein: the data analysis computer is used for receiving data forwarded in a network, and is used for receiving a telemetering packet forwarded by the satellite affair simulation computer, dynamics simulation data forwarded by the single-computer simulation computer, an operation log of the main control computer and power supply information in a subsystem test stage;
in the whole satellite testing stage, the data forwarding module is used for receiving the data forwarded by the whole satellite network and carrying out packet picking on the received whole satellite data; and decoding, storing and forwarding the received telemetry data and the received kinetic data.
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| CN112925480B (en) * | 2021-03-01 | 2024-03-01 | 中国科学院微小卫星创新研究院 | Method for interacting important information of satellite service computer |
| CN112988121A (en) * | 2021-03-18 | 2021-06-18 | 东方红卫星移动通信有限公司 | High-adaptability spacecraft program design method, spaceborne computer and spacecraft |
| CN114050872A (en) * | 2021-11-26 | 2022-02-15 | 长光卫星技术有限公司 | Satellite-borne multi-beam phased-array antenna beam pointing closed-loop test system |
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