阅读说明：本技术 软件定义的在轨卫星模拟器系统及方法 (The satellite in orbit simulation system and method for software definition ) 是由 杨同智 曾齐 刘廷玉 盛开明 阎珺 于 2019-08-14 设计创作，主要内容包括：本发明提供了一种卫星地面应用系统的技术领域内的软件定义的在轨卫星模拟器系统及设计方法,包括：射频层、中频层、软件层；所述软件层能够描述卫星的具体业务,模拟卫星内部数据流,生成星地交互的仿真数据,并通过网络与所述中频层的通用基带设备通信,完成卫星业务仿真数据与中频信号之间的转换；所述中频层负责实现信号制式模拟,所述射频层负责实现频点、功率模拟,所述中频层与所述射频层配合实现卫星射频信号的硬件模拟,提供在轨卫星射频信号模拟的硬件平台,所述硬件平台采用通用化设计。本发明通过软件定义更改实现卫星模拟器的功能重构,提高了卫星模拟器的重用性与研制效率,降低了研制成本,具有良好地工程应用价值。(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.)

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.

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.