CN107888275A - The general base band data simulation source of satellite data transmission subsystem - Google Patents
The general base band data simulation source of satellite data transmission subsystem Download PDFInfo
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- CN107888275A CN107888275A CN201711079878.9A CN201711079878A CN107888275A CN 107888275 A CN107888275 A CN 107888275A CN 201711079878 A CN201711079878 A CN 201711079878A CN 107888275 A CN107888275 A CN 107888275A
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- data
- data transmission
- base band
- satellite
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18517—Transmission equipment in earth stations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/0082—Monitoring; Testing using service channels; using auxiliary channels
- H04B17/0085—Monitoring; Testing using service channels; using auxiliary channels using test signal generators
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/391—Modelling the propagation channel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electromagnetism (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
Abstract
The invention provides a kind of general base band data simulation source of satellite data transmission subsystem, including：Network communication module, high speed memory modules, data transmission blocks, phase shift block；Wherein：The high speed memory modules are used for the parameter information for storing multiple data sources, and carry out data interaction by network communication module and main control computer；The data transmission blocks are used for the instruction for receiving main control computer transmission, and send data to phase shift block；The phase shift block is used for the clock code relation for adjusting the data received from data transmission blocks, and is exported the data after regulation as analog data source.The data format and speed of the data source sent in the present invention can flexibly be set on request, by configuring relevant parameter, it is possible to achieve any regulation of frequency and phase to output data；So as to meet satellite data transmission subsystem test request, suitable for the satellite of multiple different models.
Description
Technical field
The present invention relates to satellite data transmission technical field, in particular it relates to a kind of general base band data of satellite data transmission subsystem
Simulation source.
Background technology
Satellite data transmission subsystem be star connect one of more close subsystem.In the development stage of satellite, need to carry out
Data transmission subsystem and relaying subsystem enter the test of luggage star, and data transmission subsystem, relaying subsystem and ground receiving system
Big system docking experiment.In view of the particularity of satellite carried equipment, typically in docking is tested, unit on star will not be carried,
But carry the performance indications ground-based simulation equipment suitable with unit on star.
Baseband analog source is mainly used in the functional verification of data transmission subsystem, dress star is tested, satellite docks examination with reception system
Test, the debugging of ground receiving system relevant device etc. provides data source.With increasing for satellite model, each model is to base band mould
There is demand in plan source, and in the development process of satellite model, the checking of data transmission subsystem function and performance is essential.Therefore,
It is required that base band data simulation source can simulate the ability of the required data format of a variety of satellite models and speed, to examine satellite
Data transmission subsystem performance indications provide suitable experimental condition.
Currently without the explanation or report for finding technology similar to the present invention, money similar both at home and abroad is also not yet collected into
Material.
The content of the invention
For in the prior art the defects of, it is an object of the invention to provide a kind of general base band data of satellite data transmission subsystem
Simulation source.
According to a kind of general base band data simulation source of satellite data transmission subsystem provided by the invention, including：Network communication mould
Block, high speed memory modules, data transmission blocks, phase shift block；Wherein：
The high speed memory modules are used for the parameter information for storing multiple data sources, and pass through network communication module and master control
Computer carries out data interaction；
The data transmission blocks are used for the instruction for receiving main control computer transmission, and send data to phase shift block；
The phase shift block is used for the clock code relation for adjusting the data received from data transmission blocks, and by after regulation
Data export as analog data source.
Alternatively, in addition to power module, the power module are used for respectively to network communication module, high speed storing mould
Block, data transmission blocks, phase shift block power supply.
Alternatively, the power module is linear power supply, and the input input 220V alternating currents of the power module are described
The output end output of power module is 5V direct currents.
Alternatively, the network communication module is carried out data transmission using gigabit network interface.
Alternatively, the high speed memory modules include at least one solid state hard disc, wherein：The maximum of single solid state hard disc is deposited
Storage capacity is 512GByte.
Alternatively, the data transmission blocks use programmable gate array FPGA circuit.
Alternatively, the phase shift block is using the circuit for including clock synthesis chip Si5338.
Alternatively, in addition to：Multiple low-voltage differential signal LVDS output interfaces；The LVDS output interface supports 1,2,
4th, 8,16 pairs of LVDS data transfers, each pair LVDS message transmission rates are not more than 150MHz, and single channel LVDS highests send digit rate
For 2.4Gbps.
Alternatively, in addition to：RS-422 output interfaces, it is 422 level signals for exporting, and supports 12 pair of 422 data
Output.
Alternatively, the frequency-tuning range of the phase shift block is 0.16MHz to 350MHz, the adjusting range of phase for ±
50% clock cycle.
Compared with prior art, the present invention has following beneficial effect：
1st, the data format and speed sent in the general base band data simulation source of satellite data transmission subsystem provided by the invention
It can flexibly be set on request, by configuring relevant parameter, realize any regulation to the frequency and phase of output data；
So as to meet satellite data transmission subsystem test request, suitable for the satellite of multiple different models.
2nd, the various load of simulation are included in the general base band data simulation source of satellite data transmission subsystem provided by the invention
Data source, and data source can be updated, applicability is high.
Brief description of the drawings
The detailed description made by reading with reference to the following drawings to non-limiting example, further feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is the case front panel of the general embodiment of base band data simulation source one of satellite data transmission subsystem provided by the invention
Schematic diagram；
Fig. 2 is the cabinet rear board of the general embodiment of base band data simulation source one of satellite data transmission subsystem provided by the invention
Schematic diagram；
Fig. 3 is the theory structure schematic diagram of the general base band data simulation source of satellite data transmission subsystem provided by the invention；
Fig. 4 is the structural representation of an embodiment of the general base band data simulation source of satellite data transmission subsystem provided by the invention
Figure.
In figure：
1- cabinet power switch；
2-LVDS1 output interfaces；
3-LVDS2 output interfaces；
4-422 output interfaces；
5- ground interfaces；
6- gigabit network interfaces；
7- power supply interfaces.
Embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, some changes and improvements can also be made.These belong to the present invention
Protection domain.
Fig. 1 is the case front panel of the general embodiment of base band data simulation source one of satellite data transmission subsystem provided by the invention
Schematic diagram；Fig. 2 is the cabinet rear board of the general embodiment of base band data simulation source one of satellite data transmission subsystem provided by the invention
Schematic diagram；As shown in Figure 1, 2, cabinet power supply is provided with the case front panel of the general base band data simulation source in the present embodiment
Switch 1, be provided with cabinet rear board LVDS1 output interfaces 2, LVDS2 output interfaces 3,422 output interfaces 4, ground interface 5,
Gigabit network interface 6, power supply interface 7.
Fig. 3 is the theory structure schematic diagram of the general base band data simulation source of satellite data transmission subsystem provided by the invention, such as
Shown in Fig. 3, the present embodiment includes：Network communication module, high speed memory modules, data transmission blocks, phase shift block；Wherein：It is high
Fast memory module is used for the parameter information for storing multiple data sources, and carries out data by network communication module and main control computer
Interaction；Data transmission blocks receive the instruction that main control computer is sent, and send data to phase shift block；Phase shift block is used to adjust
The clock code relation of the data received from data transmission blocks is saved, and is exported the data after regulation as analog data source.
The data format and speed sent in general base band data simulation source in the present embodiment can carry out spirit on request
It is living to set, by configuring relevant parameter, realize any regulation to the frequency and phase of output data；So as to meet satellite data transmission
Subsystem test requirement, suitable for the satellite of multiple different models.
Alternatively, in addition to：Power module, the input of power module are connected with outside 220V power supplys, power module
Output end is respectively to network communication module, high speed memory modules, data transmission blocks, phase shift block power supply.It should be noted that
Power module in the present embodiment can be integrated in general base band data simulation source or with the general base band data
The standalone module of simulation source separation.
Alternatively, above-mentioned power module can be linear power supply, input as 220V alternating currents, export as 5V direct currents.
Alternatively, above-mentioned network communication module is gigabit network interface；To realize the quick transmission of data.
Alternatively, above-mentioned high speed memory modules are solid state hard disc (Solid State Drives, SSD), wherein：It is single
The maximum storage capacity of SSD solid state hard discs is 512GByte.
Alternatively, above-mentioned data transmission blocks by programmable gate array (Field-Programmable Gate Array,
FPGA) circuit realiration.
Alternatively, above-mentioned phase shift block is by including high precision clock synthesis chip Si5338 circuit realiration.
Incorporated by reference to Fig. 3, with reference to figure 1, Fig. 2, LVDS1 output interfaces, the output of LVDS2 output interfaces on cabinet rear board are
Low-voltage differential signal (Low-Voltage Differential Signaling, LVDS) level, output support 1,2,4,
8th, 16 pairs of LVDS data transfers, each pair LVDS message transmission rates are not more than 150MHz, and single channel LVDS highests send digit rate and are
2.4Gbps。
Alternatively, 422 above-mentioned output interfaces (RS-422 interfaces, for realizing balance transmission) output is 422 level, defeated
Go out to support the output of 12 pair of 422 data.
Fig. 4 is the structural representation of an embodiment of the general base band data simulation source of satellite data transmission subsystem provided by the invention
Figure；As shown in figure 4, the high speed memory modules in the present embodiment are made up of 8 pieces of SSD solid-state disks, simulation source needs to simulate various loads
Lotus, it is therefore necessary to ensure the abundant of data source category, it is therefore desirable to be updated to SSD solid-state disk internal data contents.Data
The renewal of content can use following two kinds of modes：
1) the SSD solid-state disks in simulation source are taken out, SSD solid-state disks is accessed in computer, by computer to its content
It is updated；
2) gigabit networking carried by simulation source is updated to data source.
As shown in figure 4, the phase shift block in the present embodiment is realized by high precision clock synthesis chip Si5338, Si5338 energy
Synthesis can realize phase shift function from 0.16 to any frequency between 350MHz, and adjusting range is ± 50% clock week
Phase is adjustable.By configuring relevant parameter, output frequency, phase can be arbitrarily set, realize the versatility requirement in digital simulation source.
Include the data source for simulating various load in general base band data simulation source in the present embodiment, and being capable of logarithm
It is updated according to source, applicability is high.
Alternatively, also include in the present embodiment：The devices such as connector, resistance, electric capacity；The devices such as connector, resistance, electric capacity
At least take II levels to drop volume, for the pressure voltage of electric capacity, then take 50% design of Reducing Rating, for connector by electric current, at least
Take 70% design of Reducing Rating.
One skilled in the art will appreciate that except realizing simulation provided by the invention in a manner of pure computer readable program code
Beyond source and its each device, completely can by by method and step carry out programming in logic come system provided by the invention and
Its each device is with the shape of gate, switch, application specific integrated circuit, programmable logic controller (PLC) and embedded microcontroller etc.
Formula realizes identical function.So system provided by the invention and its every device are considered a kind of hardware component, and
It is used to realize that the device of various functions can also to be considered as the structure in hardware component to what is included in it；It will can also be used to realize
The device of various functions, which is considered as, not only can be the software module of implementation method but also can be the structure in hardware component.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or change within the scope of the claims, this not shadow
Ring the substantive content of the present invention.In the case where not conflicting, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (10)
- A kind of 1. general base band data simulation source of satellite data transmission subsystem, it is characterised in that including：Network communication module, high speed Memory module, data transmission blocks, phase shift block；Wherein：The high speed memory modules are used for the parameter information for storing multiple data sources, and are calculated by network communication module and master control Machine carries out data interaction；The data transmission blocks are used for the instruction for receiving main control computer transmission, and send data to phase shift block；The phase shift block is used to adjusting the clock code relation of data received from data transmission blocks, and by the data after regulation Exported as analog data source.
- 2. the general base band data simulation source of satellite data transmission subsystem according to claim 1, it is characterised in that also include electricity Source module, the power module are used for respectively to network communication module, high speed memory modules, data transmission blocks, phase shift block Power supply.
- 3. the general base band data simulation source of satellite data transmission subsystem according to claim 2, it is characterised in that the power supply Module is linear power supply, the input input 220V alternating currents of the power module, and the output end output of the power module is 5V direct currents.
- 4. the general base band data simulation source of satellite data transmission subsystem according to claim 1, it is characterised in that the network Communication module is carried out data transmission using gigabit network interface.
- 5. the general base band data simulation source of satellite data transmission subsystem according to claim 1, it is characterised in that the high speed Memory module includes at least one solid state hard disc, wherein：The maximum storage capacity of single solid state hard disc is 512GByte.
- 6. the general base band data simulation source of satellite data transmission subsystem according to claim 1, it is characterised in that the data Sending module uses programmable gate array FPGA circuit.
- 7. the general base band data simulation source of satellite data transmission subsystem according to claim 1, it is characterised in that the phase shift Module is using the circuit for including clock synthesis chip Si5338.
- 8. the general base band data simulation source of satellite data transmission subsystem according to claim any one of 1-7, it is characterised in that Also include：Multiple low-voltage differential signal LVDS output interfaces；The LVDS output interface supports 1,2,4,8,16 pair of LVDS number According to transmission, each pair LVDS message transmission rates are not more than 150MHz, and it is 2.4Gbps that single channel LVDS highests, which send digit rate,.
- 9. the general base band data simulation source of satellite data transmission subsystem according to claim any one of 1-7, it is characterised in that Also include：RS-422 output interfaces, it is 422 level signals for exporting, and supports the output of 12 pair of 422 data.
- 10. the general base band data simulation source of satellite data transmission subsystem according to claim 7, it is characterised in that the shifting The frequency-tuning range of phase module is 0.16MHz to 350MHz, and the adjusting range of phase is ± 50% clock cycle.
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| CN201711079878.9A CN107888275A (en) | 2017-11-06 | 2017-11-06 | The general base band data simulation source of satellite data transmission subsystem |
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| CN201711079878.9A CN107888275A (en) | 2017-11-06 | 2017-11-06 | The general base band data simulation source of satellite data transmission subsystem |
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| CN107888275A true CN107888275A (en) | 2018-04-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110212972A (en) * | 2019-06-21 | 2019-09-06 | 成都星时代宇航科技有限公司 | Star Service data transmission set and method |
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| US7432856B1 (en) * | 2005-04-19 | 2008-10-07 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Signal simulation device |
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