CN110501722A - The satellite in orbit simulation system and method for software definition - Google Patents
The satellite in orbit simulation system and method for software definition Download PDFInfo
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- CN110501722A CN110501722A CN201910750003.XA CN201910750003A CN110501722A CN 110501722 A CN110501722 A CN 110501722A CN 201910750003 A CN201910750003 A CN 201910750003A CN 110501722 A CN110501722 A CN 110501722A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/02—Details of the space or ground control segments
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/08—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing integrity information, e.g. health of satellites or quality of ephemeris data
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Abstract
The present invention provides the satellite in orbit simulation system of the software definition in a kind of technical field of satellite ground application system and design methods, comprising: radio layer, intermediate frequency layer, software layer；The software layer can describe the specific business of satellite, and analog satellite internal data flow generates the emulation data of satellite and ground interaction, and communicated by network with the general baseband equipment of the intermediate frequency layer, complete the conversion between satellite business emulation data and intermediate-freuqncy signal；The intermediate frequency layer is responsible for realizing signaling mode simulation, the radio layer is responsible for realizing frequency point, power analog, the hardware simulation of satellite RF signal is realized in the intermediate frequency layer and radio layer cooperation, provides the hardware platform of satellite in orbit radiofrequency signal simulation, and the hardware platform uses General design.The present invention changes the function remodeling for realizing satellite simulator by software definition, improves the reusability and development efficiency of satellite simulator, reduces development cost, has engineering application value well.
Description
Technical field
The present invention relates to the technical fields of satellite ground application system, and in particular, to a kind of the in-orbit of software definition is defended
Star simulator system and method is applied to design of satellites and ground application system functional verification.
Background technique
Satellite engineering is a high risk, high investment, highly complex and high-precision system engineering, and satellite control system
System is the core of satellite platform, directly determines satellite task success or failure, therefore each space flight mechanism all pays much attention to satellite both at home and abroad
The ground simulation of control system verifies work, designs and establishes a variety of satellite control analogue systems, in design of satellites and development
In carried out a large amount of ground simulation and test, to ensure the success rate of satellite in orbit.
Conventional satellite simulator is designed using specialized hardware, can not be reused, be increased development cost, and development effect is reduced
Rate, in addition, the task simulation and Effectiveness Evaluation System of a set of pure software can be built in satellite demand analysis, conceptual design, it is right
Part design and mission performance carry out simulating, verifying, and to support satellite demand analysis, conceptual design, but the system is set using software
Meter, does not access actual physical system, fails to play further engineering value.
It is retrieved through the prior art, Chinese invention patent number is CN200910137349.9, entitled a kind of based on gas
The satellite orbit motion ground simulation system of floating principle, including air floating platform, the gas being placed on air floating platform foot and the gas
The high-pressure air source and center gravitation simulator being connected enough, which includes: the first central axis, vertically
It is installed among the air floating platform；First magnet is horizontally installed on first central axis；Second central axis, is installed vertically on
On the gas foot；Second magnet is horizontally installed on second central axis, and passes through the with the force action line of the first magnet magnetic force
One, the line of the second central axis.Using the method for the system, include the following steps: to open high-pressure air source, it is flat in gas foot and air bearing
One layer of air film is generated between platform to float satellite simulator, certain movement velocity is provided to satellite simulator, by center gravitation mould
Quasi- device provides the centripetal force of satellite simulator circular motion, enables satellite simulator on air floating platform around being fixed on air floating platform
On central axis without frictional rotation.The invention can not also solve the technical problems such as reusability and the development efficiency of satellite simulator.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of satellite in orbit simulator systems of software definition
System and method.
A kind of satellite in orbit simulation system of the software definition provided according to the present invention, comprising: radio layer, intermediate frequency layer,
Software layer；
The software layer can describe the specific business of satellite, including integrated electronics emulation module, navigation information emulate mould
Block, energy emulation module, thermal control emulation module, mechanism simulation module, attitude control emulation module, rail control emulation module, load emulation
Module and number pass emulation module；
The intermediate frequency layer is responsible for realizing signaling mode simulation, is passed general baseband equipment by observing and controlling, number and is formed, realization telemetering,
Remote control and number crossing frequency signal imitation；
The radio layer is responsible for realizing navigation signal reception, frequency point and power analog；
Remote-control data that the software layer is sent by the observing and controlling synthetical baseband that network receives the intermediate frequency layer, the radio frequency
The navigation data that the multimode navigation receiver of layer is sent responds telecommand and navigation information, according to simulation model analog satellite
Internal data flow generates telemetering, the number biography emulation data of satellite and ground interaction, and comprehensive by the general observing and controlling of network and the intermediate frequency layer
Close baseband equipment, high code rate number passes baseband equipment communication, the conversion between completion satellite business emulation data and intermediate-freuqncy signal；
The intermediate frequency layer and radio layer cooperation realize that Satellite TT and number pass the hardware simulation of radiofrequency signal, provide
The hardware platform of rail satellite RF signal imitation, the hardware platform realize remote control and navigation rf signal reception, telemetering and number
Frequency signal imitation is transmitted, the hardware platform uses General design.
In some embodiments, the radio layer includes universal navigation receiver and microwave components, and the universal navigation connects
Receipts machine can cover different system navigation signals using commercial multimode multi-frequency navigation neceiver, the multimode multi-frequency navigation neceiver
It receives.
In some embodiments, the microwave components are broadband converter, wideband power amplifier.
In some embodiments, the intermediate frequency layer is passed general base band and is set using the observing and controlling based on software and radio technique, number
It is standby, support various modulation classifications and coding mode.
In some embodiments, general baseband equipment, the universal navigation receiver of the radio layer of the intermediate frequency layer are logical
The component software for crossing gigabit/10,000,000,000 networks and the software layer interconnects.
In some embodiments, the software layer include energy emulation module, thermal control emulation module, mechanism simulation module,
Attitude control emulation module, rail control emulation module, navigation information emulation module, integrated electronics emulation module.
In some embodiments, the integrated electronics emulation module, the navigation information emulation module pass through gigabit networking
It receives intermediate frequency layer, remote-control data, the navigation information that radio layer is sent, energy emulation module is transferred to by internal bus, thermal control is imitated
True module, mechanism simulation module, attitude control emulation module, each functional module of rail control emulation module, each functional module response are distant
Control instruction, navigation information.
In some embodiments, the energy emulation module, the thermal control emulation module, the integrated electronics emulate mould
Block, the attitude control emulation module are generated over the ground by flexible bus interactive information according to simulation model analog platform business data flow
Telemetry.
In some embodiments, the software layer is integrated with the task simulation and Effectiveness Evaluation System of design of satellites early period,
It can emulate and generate satellite load remotely-sensed data stream, format the remote sensing number that emulation generates over the ground by Data Channel and pass data.
A kind of method of the satellite in orbit simulator of software definition, includes the following steps:
Step 1: being broadband converter, broadband by the general baseband equipment of intermediate frequency layer and the microwave components of radio layer
Power amplifier interconnection finishes, and it is integrated to complete radio layer, intermediate frequency layer radio frequency, wherein the general baseband equipment of intermediate frequency layer, radio layer
Universal navigation receiver interconnected by the component software of gigabit/10,000,000,000 networks and software layer；
Step 2: the general baseband equipment of intermediate frequency layer is configured to intermediate frequency simulation source module, i.e., is converted by ground transceiver mode
For satellite end simulation model；
Step 3: ground remote control signal passes through radio layer frequency conversion, intermediate frequency observing and controlling base band demodulating, is converted to remote-control data, distant
Control data are sent to software layer by gigabit networking；Area navigation signal is sent to the navigation neceiver of radio layer, is navigated
Positioning timing information is sent to software layer by gigabit networking；
Step 4: the comprehensive electric module of software layer, navigation module are sent distant by gigabit networking reception intermediate frequency layer, radio layer
Data, navigation information are controlled, the energy, thermal control, comprehensive electricity, each functional module of attitude control, each functional module are transferred to by internal bus
Respond telecommand, navigation information；
Step 5: the energy of software layer, thermal control, comprehensive electricity, attitude control functional module pass through flexible bus interactive information, foundation emulation
Modeling platform service data flow, generates telemetry over the ground；
Step 6: the task simulation of design of satellites early period and Effectiveness Evaluation System are integrated into the software of satellite simulator
Layer, emulation generate satellite load remotely-sensed data stream, format the remote sensing number that emulation generates over the ground by Data Channel and pass data；
Step 7: the telemetering of software layer generation, remotely-sensed data are set by the base band that gigabit/10,000,000,000 networks are sent to intermediate frequency layer
It is standby, and the modulation parameter of baseband equipment is controlled, software emulation data are converted to required intermediate-freuqncy signal；
Step 8: intermediate-freuqncy signal is sent to the broadband converter of radio layer, configures converter parameter, frequency point needed for generating
Radiofrequency signal forms simulated satellite RF signal using link power adjustment, power combing.
Compared with prior art, the present invention have it is following the utility model has the advantages that
1, the present invention changes the function remodeling for realizing satellite simulator by software definition, improves the weight of satellite simulator
With property and development efficiency, development cost is reduced, there is engineering application value well.
2, the hardware of satellite simulator of the present invention uses General design, it is only necessary to change device parameter and can meet satellite and penetrate
The simulation of frequency interface requires.
3, the present invention uses hierarchical design, general intermediate frequency, RF hardware platform is devised, to satellite simulator software layer
Provide the interface of standard open, the task simulation and Effectiveness Evaluation System of design of satellites early period can be used as a software function mould
Block is integrated in the software layer of satellite simulator, so that task simulation and Effectiveness Evaluation System be made to be changed into a prototype system, uses
In satellite ground application system closed loop verifying and satellite overall plan design physical verification, further play task simulation with
The efficiency of Effectiveness Evaluation System.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the satellite in orbit Simulator design schematic diagram of software definition.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
Embodiment 1:
The present invention provides a kind of satellite in orbit simulation systems of software definition, comprising: radio layer, intermediate frequency layer, software
Layer；
The specific business of satellite is described in the software layer, and analog satellite internal data flow generates the imitative of satellite and ground interaction
True data, and communicated by network with the general baseband equipment of the intermediate frequency layer, it completes satellite business emulation data and intermediate frequency is believed
Conversion between number；
The intermediate frequency layer be responsible for realize signaling mode simulation, the radio layer be responsible for realize frequency point, power analog, it is described in
Frequency layer and radio layer cooperation realize that the hardware simulation of satellite RF signal, the intermediate frequency layer cooperate with offer with the radio layer
The hardware platform of satellite in orbit radiofrequency signal simulation, the hardware platform use General design.
Satellite simulator uses hierarchical design, including software layer, intermediate frequency layer and radio layer, the hardware of simulator (intermediate frequency layer,
Radio layer equipment) use General design, it is only necessary to and the simulation requirement of satellite RF interface, simulator can be met by changing device parameter
Hardware provides the interface of standard open to software layer, and software layer is used to describe the specific business of satellite, number inside analog satellite
According to stream, the emulation data of satellite and ground interaction are generated, the hardware generalization of simulator only need to can be fast by the change that software layer defines
Speed reconstruct satellite simulator, realizes the analog equivalent of different satellites.
The radio layer includes universal navigation receiver and microwave components, and the universal navigation receiver is using commercial multimode
Multifrequency navigation neceiver covers the reception of Glonass, GPS and Beidou difference system navigation signal
The microwave components are broadband converter, wideband power amplifier.The microwave components of radio layer application are width
Frequency band, i.e. radio layer can be adapted to frequency conversion, the power adjustment requirements of each frequency band signals of satellite by using broadband design, it is only necessary to more
Changing equipment parameters can be completed conversion between satellite RF signal and medium standard frequency signal.
The intermediate frequency layer passes general baseband equipment using the observing and controlling based on software and radio technique, number, supports various modulation
Standard and coding mode.Satellite TT can be covered, number passes and modulation /demodulation, the encoding and decoding demand of relay system various types of signal
The general baseband equipment of intermediate frequency layer, the universal navigation receiver of radio layer pass through gigabit/10,000,000,000 networks and software layer
Component software interconnection.
The software layer is integrated with the task simulation and Effectiveness Evaluation System of design of satellites early period, can emulate generation satellite
Load remotely-sensed data stream formats the remotely-sensed data of emulation generation over the ground by Data Channel.Task can be made imitative by software layer
Very it is changed into a prototype system with Effectiveness Evaluation System, closed loop verifying and satellite entirety side for satellite ground application system
The physical verification of case design, further plays the efficiency of task simulation and Effectiveness Evaluation System.
The software layer includes energy emulation module, thermal control emulation module, mechanism simulation module, attitude control emulation module, rail
Control emulation module, navigation information emulation module, integrated electronics emulation module.
The integrated electronics emulation module, the navigation information emulation module receive intermediate frequency layer, radio frequency by gigabit networking
Remote-control data, the navigation information that layer is sent, are transferred to energy emulation module, thermal control emulation module, mechanism simulation by internal bus
Module, attitude control emulation module, each functional module of rail control emulation module, each functional module respond telecommand, navigation information.
Energy emulation module, thermal control emulation module, integrated electronics module, the attitude control emulation module of software layer pass through flexible bus
Interactive information generates telemetry over the ground according to simulation model analog platform business data flow.
Embodiment 2:
A kind of method of the satellite in orbit simulator of software definition, using the software definition in the above embodiment of the present invention 1
Satellite in orbit simulation system, include the following steps:
Step 1: by the general baseband equipment of intermediate frequency layer and the broadband converter of radio layer, wideband power amplifier
Interconnection finishes, and it is integrated to complete radio layer, intermediate frequency layer radio frequency, wherein the universal navigation of the general baseband equipment of intermediate frequency layer, radio layer
Receiver is interconnected by the component software of gigabit/10,000,000,000 networks and software layer；
Step 2: the general baseband equipment of intermediate frequency layer is configured to intermediate frequency simulation source module, i.e., is converted by ground transceiver mode
For satellite end simulation model；
Step 3: ground remote control signal passes through radio layer frequency conversion, intermediate frequency observing and controlling base band demodulating, is converted to remote-control data, distant
Control data are sent to software layer by gigabit networking；Area navigation signal is sent to the navigation neceiver of radio layer, is navigated
Positioning timing information is sent to software layer by gigabit networking；
Step 4: the comprehensive electric module of software layer, navigation module are sent distant by gigabit networking reception intermediate frequency layer, radio layer
Data, navigation information are controlled, the energy, thermal control, comprehensive electricity, each functional module of attitude control, each functional module are transferred to by internal bus
Respond telecommand, navigation information；
Step 5: the energy of software layer, thermal control, comprehensive electricity, attitude control functional module pass through flexible bus interactive information, foundation emulation
Modeling platform service data flow, generates telemetry over the ground；
Step 6: the task simulation of design of satellites early period and Effectiveness Evaluation System are integrated into the software of satellite simulator
Layer, emulation generate satellite load remotely-sensed data stream, format the remotely-sensed data for emulating and generating over the ground by Data Channel；
Step 7: the telemetering of software layer generation, remotely-sensed data are set by the base band that gigabit/10,000,000,000 networks are sent to intermediate frequency layer
It is standby, and the modulation parameter of baseband equipment is controlled, software emulation data are converted to required intermediate-freuqncy signal；
Step 8 intermediate-freuqncy signal is sent to the broadband converter of radio layer, configures converter parameter, frequency point needed for generating
Radiofrequency signal forms simulated satellite RF signal using link power adjustment, power combing.
In conclusion the present invention changes the function remodeling for realizing satellite simulator by software definition, satellite mould is improved
The reusability and development efficiency of quasi- device, reduce development cost, have engineering application value well；Satellite simulator of the present invention
Hardware use General design, it is only necessary to change device parameter can meet satellite RF interface simulation require；The present invention uses
Hierarchical design devises general intermediate frequency, RF hardware platform, provides standard open to satellite simulator software layer and connect
Mouthful, the task simulation and Effectiveness Evaluation System of design of satellites early period can be used as a software function module and be integrated in satellite simulator
Software layer be used for satellite ground application system to make task simulation and Effectiveness Evaluation System is changed into a prototype system
Closed loop verifying and satellite overall plan design physical verification, further play task simulation and Effectiveness Evaluation System effect
Energy.
One skilled in the art will appreciate that in addition to realizing system provided by the invention in a manner of pure computer readable program code
It, completely can be by the way that method and step be carried out programming in logic come so that provided by the invention other than system, device and its modules
System, device and its modules are declined with logic gate, switch, specific integrated circuit, programmable logic controller (PLC) and insertion
The form of controller etc. realizes identical program.So system provided by the invention, device and its modules may be considered that
It is a kind of hardware component, and the knot that the module for realizing various programs for including in it can also be considered as in hardware component
Structure；It can also will be considered as realizing the module of various functions either the software program of implementation method can be Hardware Subdivision again
Structure in part.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
1. a kind of satellite in orbit simulation system of software definition characterized by comprising radio layer, intermediate frequency layer, software layer；
The software layer can describe the specific business of satellite, including integrated electronics emulation module, navigation information emulation module, energy
Source emulation module, thermal control emulation module, mechanism simulation module, attitude control emulation module, rail control emulation module, load emulation module with
And number passes emulation module；
The intermediate frequency layer is responsible for realizing signaling mode simulation, is passed general baseband equipment by observing and controlling, number and is formed, and realizes telemetering, remote control
With several crossing frequency signal imitations；
The radio layer is responsible for realizing navigation signal reception, frequency point and power analog；
Remote-control data that the software layer is sent by the observing and controlling synthetical baseband that network receives the intermediate frequency layer, the radio layer
The navigation data that multimode navigation receiver is sent responds telecommand and navigation information, according to inside simulation model analog satellite
Data flow, generates telemetering, the number biography emulation data of satellite and ground interaction, and passes through the comprehensive base of the general observing and controlling of network and the intermediate frequency layer
Carrying device, high code rate number pass baseband equipment communication, complete the conversion between satellite business emulation data and intermediate-freuqncy signal；
The intermediate frequency layer and radio layer cooperation realize that Satellite TT and number pass the hardware simulation of radiofrequency signal, provide in-orbit defend
The hardware platform of star radiofrequency signal simulation, the hardware platform realize that remote control is transmitted with navigation rf signal reception, telemetering and number
Frequency signal imitation, the hardware platform use General design.
2. the satellite in orbit simulation system of software definition according to claim 1, which is characterized in that the radio layer packet
Universal navigation receiver and microwave components are included, the universal navigation receiver is described using commercial multimode multi-frequency navigation neceiver
Multimode multi-frequency navigation neceiver can cover the reception of different system navigation signals.
3. the satellite in orbit simulation system of software definition according to claim 2, which is characterized in that the microwave components
For broadband converter, wideband power amplifier.
4. the satellite in orbit simulation system of software definition according to claim 1, which is characterized in that the intermediate frequency layer is adopted
General baseband equipment is passed with the observing and controlling based on software and radio technique, number, supports various modulation classifications and coding mode.
5. the satellite in orbit simulation system of software definition according to claim 1, which is characterized in that the intermediate frequency layer
General baseband equipment, the radio layer universal navigation receiver pass through the software groups of gigabit/10,000,000,000 networks and the software layer
Part interconnection.
6. the satellite in orbit simulation system of software definition according to claim 1, which is characterized in that the software layer packet
It is imitative to include energy emulation module, thermal control emulation module, mechanism simulation module, attitude control emulation module, rail control emulation module, navigation information
True module, integrated electronics emulation module.
7. the satellite in orbit simulation system of software definition according to claim 6, which is characterized in that the integrated electronics
Emulation module, the navigation information emulation module receive intermediate frequency layer, the remote-control data that radio layer is sent, navigation by gigabit networking
Information is transferred to energy emulation module, thermal control emulation module, mechanism simulation module, attitude control emulation module, rail control by internal bus
The each functional module of emulation module, each functional module respond telecommand, navigation information.
8. the satellite in orbit simulation system of software definition according to claim 6, which is characterized in that the energy emulation
Module, the thermal control emulation module, the integrated electronics emulation module, the attitude control emulation module are believed by flexible bus interaction
Breath generates telemetry over the ground according to simulation model analog platform business data flow.
9. the satellite in orbit simulation system of software definition according to claim 1, which is characterized in that the software layer collection
At the task simulation and Effectiveness Evaluation System for having design of satellites early period, it can emulate and generate satellite load remotely-sensed data stream, pass through
Data Channel formats the remote sensing number that emulation generates over the ground and passes data.
10. a kind of method of the satellite in orbit simulator of software definition, which comprises the steps of:
Step 1: being broadband converter, wideband power by the general baseband equipment of intermediate frequency layer and the microwave components of radio layer
Amplifier interconnection finishes, and it is integrated to complete radio layer, intermediate frequency layer radio frequency, wherein the general baseband equipment of intermediate frequency layer, radio layer it is logical
It is interconnected with navigation neceiver by the component software of gigabit/10,000,000,000 networks and software layer；
Step 2: the general baseband equipment of intermediate frequency layer is configured to intermediate frequency simulation source module, i.e., is converted to and is defended by ground transceiver mode
Star end simulation model；
Step 3: ground remote control signal passes through radio layer frequency conversion, intermediate frequency observing and controlling base band demodulating, is converted to remote-control data, is remotely controlled number
Software layer is sent to according to by gigabit networking；Area navigation signal is sent to the navigation neceiver of radio layer, obtains navigator fix
Timing information is sent to software layer by gigabit networking；
Step 4: the remote control number that the comprehensive electric module of software layer, navigation module are sent by gigabit networking reception intermediate frequency layer, radio layer
According to, navigation information, the energy, thermal control, comprehensive electricity, each functional module of attitude control, each functional module response are transferred to by internal bus
Telecommand, navigation information；
Step 5: the energy of software layer, thermal control, comprehensive electricity, attitude control functional module pass through flexible bus interactive information, foundation simulation model
Analog platform business data flow generates telemetry over the ground；
The task simulation of design of satellites early period and Effectiveness Evaluation System: being integrated into the software layer of satellite simulator by step 6, is imitated
It is true to generate satellite load remotely-sensed data stream, the remote sensing number that emulation generates over the ground, which is formatted, by Data Channel passes data；
Step 7: the telemetering of software layer generation, remotely-sensed data are sent to the baseband equipment of intermediate frequency layer by gigabit/10,000,000,000 networks,
And the modulation parameter of baseband equipment is controlled, software emulation data are converted to required intermediate-freuqncy signal；
Step 8: intermediate-freuqncy signal is sent to the broadband converter of radio layer, configures converter parameter, the radio frequency of frequency point needed for generating
Signal forms simulated satellite RF signal using link power adjustment, power combing.
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| CN110865556A (en) * | 2019-12-03 | 2020-03-06 | 中国科学院软件研究所 | Virtual satellite, and test platform and method for software and algorithm based on virtual satellite |
| CN110907965A (en) * | 2019-11-27 | 2020-03-24 | 中国科学院微小卫星创新研究院 | Navigation task processor simulator and implementation method thereof |
| CN112213745A (en) * | 2019-11-27 | 2021-01-12 | 中国科学院微小卫星创新研究院 | Satellite upper note receiving processor simulator based on GPU |
| CN112394373A (en) * | 2021-01-19 | 2021-02-23 | 湖南矩阵电子科技有限公司 | Channel performance test system and method of satellite navigation anti-interference baseband chip |
| CN113835774A (en) * | 2021-08-11 | 2021-12-24 | 中国电子科技集团公司第二十九研究所 | Efficient load software reconstruction method based on satellite-ground self-closed loop |
| CN114625024A (en) * | 2022-01-29 | 2022-06-14 | 北京控制工程研究所 | Component type control system simulation platform and method based on soft bus |
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