CN207283530U - Link signal simulator and system - Google Patents
Link signal simulator and system Download PDFInfo
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- CN207283530U CN207283530U CN201721371498.8U CN201721371498U CN207283530U CN 207283530 U CN207283530 U CN 207283530U CN 201721371498 U CN201721371498 U CN 201721371498U CN 207283530 U CN207283530 U CN 207283530U
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Abstract
The utility model provides a kind of link signal simulator and system, is related to channel simulation apparatus field.Link signal simulator is applied to link signal simulation system, and link signal simulation system includes：Terminal device, link signal simulator include：Signal modulation module and signal frequency conversion output module.Signal modulation module is coupled with signal frequency conversion output module, and signal modulation module is used to couple with terminal device.Modulated by the modulation singly netted or the merging netted more, and at least two modulated signals are subjected to orthogonal modulation, it is achieved thereby that the simulation to multiple network Link16 signals, greatly improves the applicability that Link16 link signals simulator actually uses.
Description
Technical field
Channel simulation apparatus field is the utility model is related to, in particular to a kind of link signal simulator and is
System.
Background technology
With the development of science and technology and improve, Link16 link signals simulator and obtained it is relatively broad should
With.
Link16 link signal simulators be to simulate the signal environment of U.S. army Link16 Tactical Simulation communication systems and
The signal generation system of development, which is the system for producing a generation L-band signal of communication, by using LINK16 communication protocols
View, with simulating to Link16 communication environments.In the prior art, programmable gate array (FPGA, Field- can be used
Programmable Gate Array) plus Direct Digital Synthesizer (DDS, Direct Digital
Synthesizer mode) realizes the simulation to Link16 link signals.But the signal modulation mode of FPGA+DDS, causes it
The Link16 link signals of single network can be only simulated, so that the simulation to Link16 link signals generates greatly
Limitation, has seriously affected the applicability of Link16 link signals simulator actual use.
Therefore, how effectively to improve the applicability of Link16 link signals simulator actual use is current industry one
Hang-up.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of link signal simulator and system, with improvement
State defect.
What the embodiment of the utility model was realized in：
In a first aspect, the utility model embodiment provides a kind of link signal simulator, the link signal simulation dress
Put and be applied to link signal simulation system, the link signal simulation system includes：Terminal device, the link signal simulation dress
Put including：Signal modulation module and signal frequency conversion output module；The signal modulation module and the signal frequency conversion output module
Coupling, the signal modulation module are used to couple with the terminal device.The signal modulation module, for obtaining the terminal
The modulation intelligence that equipment is sent, at least two modulated signals of the single net of generation or networks combined are modulated according to the modulation intelligence,
And each modulated signal is exported to the signal frequency conversion output module.The signal frequency conversion output module, for inciting somebody to action
At least two modulated signal frequency conversion orthogonal modulations obtained are link radio frequency signals, and the link radio frequency signals are defeated
Go out.
Second aspect, the utility model embodiment provide a kind of link signal simulation system, the link signal simulation system
System includes：Terminal device and the link signal simulator, the terminal device are coupled with the link signal simulator.
The beneficial effect of the utility model embodiment is：
By the coupling of signal modulation module and terminal device, signal modulation module can obtain the tune of terminal device transmission
Information processed.Signal modulation module can modulate at least two modulated signals for generating and singly netting, signal modulation according to the modulation intelligence
Module can also modulate at least two modulated signals of generation networks combined according to the adjustment information.Signal frequency conversion output module leads to
Cross the coupling with signal modulation module, at least two modulation that signal frequency conversion output module will can be obtained from signal modulation module
Signal carries out frequency conversion, and is link radio frequency signals by least two modulated signal orthogonal modulations, and link radio frequency signals are defeated
Go out.Therefore, modulated by the modulation singly netted or the merging netted more, and at least two modulated signals are subjected to orthogonal modulation, from
And the simulation to multiple network Link16 signals is realized, greatly improve the actual use of Link16 link signals simulator
Applicability.
Other feature and advantage of the utility model will illustrate in subsequent specification, also, partly from specification
Become apparent, or understood by implementing the utility model embodiment.The purpose of this utility model and other advantages can
Realize and obtain by specifically noted structure in the specification, claims and attached drawing write.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.By the way that shown in attached drawing, the above and other purpose, feature and advantage of the utility model will more
Clearly.Identical reference numeral indicates identical part in whole attached drawings.Do not painted by actual size equal proportion scaling deliberately
Attached drawing processed, it is preferred that emphasis is show the purport of the utility model.
Fig. 1 shows a kind of structure diagram for link signal simulation system that the utility model embodiment provides；
Fig. 2 shows a kind of first structure block diagram for link signal simulator that the utility model embodiment provides；
Fig. 3 shows a kind of the second structure diagram of link signal simulator that the utility model embodiment provides；
Fig. 4, which is shown, may be programmed processing unit in a kind of link signal simulator that the utility model embodiment provides
Structure diagram；
Fig. 5, which is shown, may be programmed processing unit in a kind of link signal simulator that the utility model embodiment provides
Signal modulation flow chart.
Icon：20- link signal simulation systems；21- terminal devices；10- link signal simulators；100- power supply moulds
Block；200- display modules；300- signal modulation modules；310- network interface units；320- clock units；321-TXCO crystal oscillators；322-
Clock distribution chip；330-GPS signal elements；340- may be programmed processing dispensing unit；350- D/A conversion units；351- first
Digital analog converter；The second digital analog converters of 352-；360- main control units；370- may be programmed processing unit；371-GPS configuration are single
Member；372- digital-to-analogue conversions configure subelement；373- interface subelements；3731-ARM interface data registers；3732-SPI sending and receiving
Register；3733- network interfaces REG；374- signal modulation subelements；400- signal frequency conversion output modules；410- modulation treatment units；
420- modulates output unit.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term is " even
Connect ", " coupling " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Referring to Fig. 1, the utility model embodiment provides a kind of link signal simulation system 20, link signal simulation
System 20 includes：Terminal device 21 and link signal simulator 10.
Terminal device 21 possesses signal operation processing and function, the terminal device 21 such as manipulation and display：It is desk-top
PC, mobile PC, mainframe computer or cloud computer (computing device) etc..In the present embodiment, terminal device 21 can be：It is desk-top
PC.Terminal device 21 may be mounted in the Central Control Room of user, and the RJ45 interfaces of terminal device 21 can pass through data cable and link
Signal imitation device 10 couples.Terminal device 21 can obtain the address of link signal simulator 10 by coupling.User can
Corresponding modulating information is inputted according to the information that terminal device 21 is shown.Terminal device 21, which can send modulation intelligence to link, to be believed
Number simulator 10, and commencing signal is generated and sent to link signal simulator 10 according to the control of user, to realize
Terminal device 21 is modulated Link16 link signals according to modulation intelligence and commencing signal link signal simulator 10 and is simulated
Remote control.
Link signal simulator 10 is the equipment for possessing signal processing and signal modulation ability.Link signal simulator
10 can be mutual with terminal device 21 communication.Link signal simulator 10 address information of itself can be sent to
Terminal device 21.In addition, link signal simulator 10 can also obtain the modulation intelligence of the transmission of terminal device 21.Link signal mould
Intend device 10 according to the modulation intelligence, at least two modulated signals that single network or Multi net voting merge can be generated, and incite somebody to action each
It is link radio frequency signals that modulated signal, which carries out frequency conversion and orthogonal modulation, finally again exports link radio frequency signals.It is achieved thereby that
Link16 link signals are modulated according to the modulation intelligence and are simulated.
Referring to Fig. 2, the utility model embodiment provides a kind of link signal simulator 10, this link signal mould
Intending device 10 includes：Power module 100, display module 200, signal modulation module 300 and signal frequency conversion output module 400.
Power module 100 is used to obtain electric energy by the coupling with external power supply, and power module 100 is by the electric energy of acquisition
In output to the modules in link signal simulator 10 after rectification decompression, to ensure the normal work of modules.
Display module 200 is used for user by operation display interface the modulation intelligence that inputs, and by with signal modulation
The coupling of module 300, modulation intelligence is exported to signal modulation module 300, so that link signal simulator 10 is in endless
In the case of 21 remote control of equipment, the modulation simulation of Link16 link signals can be also completed.
Signal modulation module 300 is used to obtain the modulation that terminal device 21 is sent believe by the coupling with terminal device 21
Breath.Modulation intelligence described in signal modulation module 300, the single network of generation is adjusted at least by any one in multiple passages
Two modulated signals, or believed by any number of at least two modulation merged to adjust generation Multi net voting in multiple passages
Number.And by the coupling of signal frequency conversion output module 400, each modulated signal is exported to signal frequency conversion output module 400.
Signal frequency conversion output module 400 is used to carry out at least two modulated signals of acquisition by up-conversion passage
Frequency conversion, and it is link radio frequency signals that at least two modulated signals after up-conversion are carried out orthogonal modulation by adder again, most
The link radio frequency signals of generation are exported again afterwards.
Referring to Fig. 3, power module 100 may include：Step-down rectifying circuit and direct-current voltage reducing circuit.Step-down rectifying circuit and
External power supply couples, and external power supply is then exchanged letter by direct-current voltage reducing circuit with step-down rectifying circuit coupling step-down rectifying circuit
Number it is depressured and is direct current signal by AC signal rectification by bridge rectifier, wherein, the voltage of direct current signal is 12V.Directly
It can be DC-DC power source circuit to flow reduction voltage circuit, and the direct current signal of 12V can be depressured by direct-current voltage reducing circuit again, and is depressured and is
Magnitude of voltage needed for modules.As a kind of mode, the voltage of direct-current voltage reducing circuit output can be：5V, 3.3V, 1.2V and
1.8V。
Display module 200 can be display, display panel or the touch screen of the function such as manipulation and display.The present embodiment
In, display module 200 can be (LCD, Liquid Crystal Display) display screen, and with manipulation button.Do not having
In the case of endless 21 remote control of end equipment, user can be exported corresponding by using the manipulation button of display module 200
Modulation intelligence and commencing signal.Display module 200 again sends the modulation intelligence and commencing signal to signal modulation module 300
Meanwhile so that link signal simulator 10 is in the case of endless 21 remote control of end equipment, it can also complete Link16 chains
Road signal modulation simulation.In addition, display module 200 can also be shown the modulation intelligence, so that user would know that currently
Modulation case.
As shown in figure 3, signal modulation module 300 may include：Network interface unit 310, clock unit 320, gps signal unit
330th, processing dispensing unit 340, D/A conversion unit 350, main control unit 360 and programmable processing unit 370 be may be programmed.
Network interface unit 310 can be IC chip, and in the present embodiment, network interface unit 310 can be W5300.Network interface
Unit 310 is distinguished power module 100, main control unit 360, programmable processing unit 370 and terminal device 21 and is coupled.Network interface unit
310 by obtain power module 100 1.8V voltages power supply to be worked normally.By the transfer of network interface unit 310, just
It can realize the communication between main control unit 360 and programmable processing unit 370 and terminal device 21.Specifically, network interface unit
310 can retransmit the Debugging message sent by terminal device 21 to main control unit 360, and network interface unit 310 also can will be by
The address information of 370 receipt of programmable processing unit is sent to terminal device 21.
Clock unit 320 is used to produce clock signal, clock unit 320 respectively with programmable processing unit 370 and signal
Frequency conversion output module 400 couples.In the present embodiment, clock unit 320 may include：TXCO crystal oscillators 321 and clock distribution chip
322.TXCO crystal oscillators 321 can produce the clock signal of 10MHz, and the clock signal is exported to clock distribution chip respectively
322 and signal frequency conversion output module 400.Clock distribution chip 322 can generate multigroup clock according to the clock signal of the 10MHz
Signal.Specifically, clock distribution chip 322 can generate three groups of clock signals, it is respectively：When the first clock signal, second
Clock signal and the 3rd clock signal.Clock distribution chip 322 can also export the first clock signal to programmable processing unit
370, and second clock signal and the 3rd clock signal are exported to D/A conversion unit 350, to ensure that programmable processing is single
The normal work of member 370 and D/A conversion unit 350.
Gps signal unit 330 can be the GPS chip of integrated circuit.In the present embodiment, gps signal unit 330 can lead to
Gps antenna outside overcoupling and obtain gps signal.Gps signal unit 330 passes through the coupling with programmable processing unit 370 again
Close, therefore the output of pulse signal that can also be produced according to gps signal of gps signal unit 330 is to programmable processing unit 370,
To ensure that the modulation of programmable processing unit 370 is more accurate.As a kind of mode, the pulse letter that gps signal unit 330 exports
Number it is pps pulse per second signal.
Programmable processing dispensing unit 340 can be the configuration chip of integrated circuit, may be programmed processing configuration and may be programmed
Processing unit 370 couples.Programmable processing dispensing unit 340 can store the operation program of programmable processing unit 370.Work as letter
Number modulation module 300 powers on when bringing into operation, and may be programmed operation program that processing dispensing unit 340 stores can be by programmable processing
Unit 370 is read, and in order to which programmable processing unit 370 completes data configuration, is worked normally.
D/A conversion unit 350 be used for by respectively with clock unit 320, programmable processing unit 370 and signal frequency conversion
Output module 400 couples, then at least two modulated signals that programmable processing unit 370 exports can be carried out digital-to-analogue conversion
Export to signal frequency conversion output module 400 again afterwards, wherein, modulated signal is preferably two.D/A conversion unit 350 can wrap
Include：First digital analog converter 351 and the second digital analog converter 352.First digital analog converter 351 respectively with clock unit 320, can
Programmed process unit 370 and signal frequency conversion output module 400 couple, the second digital analog converter 352 then respectively with clock unit
320th, it may be programmed processing unit 370 and signal frequency conversion output module 400 couple.As a kind of mode, the first digital analog converter 351
All can be with the first digital analog converter 351：AD9142 types.First digital analog converter 351 can obtain programmable processing unit
One of modulated signal of 370 outputs.
First digital analog converter 351 is by obtaining second clock signal, then the first digital analog converter 351 can modulate this
While signal carries out digital-to-analogue conversion, which is carried out by up-conversion according to second clock signal again, and again by up-conversion
The modulated signal afterwards is exported to signal frequency conversion output module 400.Wherein, the modulated signal of the first digital analog converter 351 output
Frequency be 200MHz to 296MHz.
Second digital analog converter 352 can obtain another modulated signal that programmable processing unit 370 exports.Second number
Mode converter 352 is by obtaining the 3rd clock signal, then the modulated signal can be carried out digital-to-analogue turn by the second digital analog converter 352
While changing, which is also carried out by up-conversion according to the 3rd clock signal again, and again believe the modulation after up-conversion
Number output is to signal frequency conversion output module 400.Wherein, the frequency of the modulated signal of the second digital analog converter 352 output is
195MHz to 306MHz.It should be noted that the first digital analog converter 351 and the second digital analog converter 352 are operated in interpolation
State.
Main control unit 360 can be the IC chip with signal handling capacity, main control unit 360 by with power supply
The coupling of module 100, is worked normally with obtaining 3.3V power supplys.In the present embodiment, main control unit 360 can be with ARM
(Acorn RISC Machine) processor is main body, and including dynamic RAM (SDRAM, Synchronous
Dynamic Random Access Memory), arm processor is coupled with dynamic RAM.Main control unit 360 by with
The coupling of network interface unit 310, i.e. arm processor and the coupling of mouth unit, arm processor can obtain modulation intelligence, wherein, adjust
Information processed may include：Pulse width, user data, frequency hop sequences, performance number and data encapsulation etc..Arm processor can should
Modulation intelligence is parsed, and the modulation intelligence after parsing is sent to dynamic RAM and is stored.When needing to carry out
During signal modulation, arm processor can obtain the commencing signal of the transmission of terminal device 21, and read dynamic RAM memory
The corresponding modulation intelligence of storage.Arm processor is coupled by EMC buses with programmable processing unit 370, therefore arm processor energy
It is enough to send the modulation intelligence and commencing signal of reading to programmable processing unit 370.In addition, arm processor can also be read
Take the address information in programmable processing unit 370.Furthermore main control unit 360 is coupled with display module 200, i.e. arm processor
It can also be coupled by RS232 buses.By above-mentioned connection relation, in the case of no terminal device 21, arm processor is also
The modulation intelligence that can be obtained by display device.
Programmable processing unit 370 can also be the IC chip with signal handling capacity, and it is single to may be programmed processing
Member 370 is worked normally by the coupling with power module 100 with obtaining the power supply of 3.3V, 1.8V and 1.2V.It is programmable
Processing unit 370 can be：Field programmable gate array (FPGA, Field-Programmable Gate Array), its type
Number can be：XC6SLX100-2FGG484I.
Fig. 3 and Fig. 4 are referred to, programmable processing unit 370 includes：GPS configurations subelement 371, digital-to-analogue conversion configuration
Unit 372, interface subelement 373, signal modulation subelement 374.
GPS configuration subelements 371 can be IC chip, and GPS configuration subelements 371 can be with gps signal unit
330 couplings.In 300 initial power-on of signal modulation module, when proceeding by work, GPS configuration subelements 371 can be according to itself
Pre-set programs gps signal unit 330 is configured, i.e. GPS configuration subelement 371 gps signal unit 330 can be answered
Position, to recover the original state of gps signal unit 330.
Digital-to-analogue conversion configuration subelement 372 can also be IC chip, and digital-to-analogue conversion configures subelement 372 can be with
D/A conversion unit 350 couples.In 300 initial power-on of signal modulation module, when proceeding by work, digital-to-analogue conversion configuration is single
Member 372 is enough according to the pre-set programs logarithmic mode converting unit 350 of itself, i.e., digital-to-analogue conversion configuration subelement 372 can be to first
351 and second digital analog converter 352 of digital analog converter is configured.Digital-to-analogue conversion configuration subelement 372, which can pass through, to be configured
The difference multiple and up-conversion frequency of the first digital analog converter 351, and the difference times of the second digital analog converter 352 are adjusted respectively
Count and up-conversion frequency to preset value.
Interface subelement 373 is used for the modulation intelligence for receiving the transmission of main control unit 360, and modulation intelligence is sent to signal
Modulation subunit 374.Specifically, interface subelement 373 may include：ARM interface data register 3731, SPI sending and receiving registers
3732 and network interface REG3733, wherein, ARM interface data register 3731 respectively with SPI sending and receiving register 3732 and network interface
REG3733 is coupled.Interface subelement 373 with main control unit 360 by coupling, i.e., at ARM interface data register 3731 and ARM
Manage device coupling.ARM interface data register 3731 can obtain modulation intelligence and commencing signal.Interface subelement 373 passes through again
With the coupling of signal modulation subelement 374, i.e. ARM interface data register 3731 is coupled with signal modulation subelement 374.ARM
Interface data register 3731 can send modulation intelligence and commencing signal to signal modulation subelement 374.Interface is single
Member 373 is coupled by network interface unit 310 with terminal device 21, i.e., network interface REG3733 passes through network interface unit 310 and terminal device 21
The address information of itself can be passed through network interface by coupling, ARM interface data register 3731 under the control of main control unit 360
REG3733 is sent to terminal device 21.In addition, interface subelement 373 is coupled with signal frequency conversion output module 400, i.e. SPI sending and receiving
Register 3732 is exported by Serial Peripheral Interface (SPI) data/address bus (SPI, Serial Peripheral Interface) and frequency conversion
Module couples.ARM interface data register 3731 can will pass through SPI sending and receiving register 3732 under the control of main control unit 360
Adjust the output power of frequency conversion output module.
Signal modulation subelement 374 is used in memory interface subelement 373 modulation intelligence and commencing signal sent,
To proceed by signal modulation according to commencing signal, and at least two of the single net of generation or networks combined are modulated according to modulation intelligence
Modulated signal, finally again exports each modulated signal to signal frequency conversion output module 400.
As a kind of embodiment, signal modulation subelement 374 can pass through 4 single networks of channel modulation 1 to 4 weights
Folded network.For signal modulation subelement 374 when getting modulation intelligence, signal modulation subelement 374 can be by modulation intelligence
The data of each network are respectively stored into the memory of respective channel.When signal modulation subelement 374 gets commencing signal
When, signal modulation subelement 374 can read the data in the memory of respective channel, so that the modulation of signal is carried out, wherein
Data are obtained according to modulation intelligence：User data, frequency point frequency and time slot distribution.
As another embodiment, the modulation of each passage of signal modulation subelement 374 to signal is identical
Mode, signal modulation subelement 374 again finally can will the signal of each channel modulation be added after export respectively again to first number
351 and second digital analog converter 352 of mode converter.Signal modulation subelement 374 is equipped with four signal output parts, it is respectively：
AI, AQ, BI and BQ.Wherein, AI and AQ is coupled with the first digital analog converter 351, BI and BQ then with the second digital analog converter 352
Coupling.374 each passage of signal modulation subelement can be modulated signals into as four, it is respectively AI signals, AQ signals, BI
Signal and BQ signals, and signal modulation subelement 374 produces the speed of AI signals, AQ signals, BI signals and BQ signals and is
175MHz.The AI signals of each network are added by signal modulation subelement 374 by the adder of itself, by each network
AQ signals be added, the BQ signals of each network be added to the BI signal phase adductions of each network.Pass through adder again
The AI signal outputs that will add up are to AI, the AQ signal outputs that will add up to AQ, the BI signal outputs that will add up to BI and will add up
BQ signal outputs to BQ.Wherein, it is one of modulated signal to be exported by AI and AQ to the first digital analog converter 351, and
It is then another modulated signal to be exported by BI and BQ to the second digital analog converter 352.
In addition, signal modulation subelement 374 can also produce pseudo random noise according to ARM interface data register 3731
Sound.Specifically, signal modulation subelement 374 can randomly generate noise according to PN codes, and noise is multiplied by defeated after power coefficient
Go out to AI, AQ, BI and BQ, so that two modulated signals can be coupled with noise, so that signal imitation is truer.
In the present embodiment, signal modulation subelement 374 be to the mode of the signal modulation of each network it is identical, below
The signal modulation of one network will be described in detail with one of passage.
The modulation of signal modulation subelement 374 produces the modulated signal of Link16, is to carry out minimum frequency shift according to modulation intelligence
Keying modulation (MSK, Minimum Shift Keying), produces base band msk signal.MSK modulation is single by signal modulation
DDS inside member 374 realizes that modulation produces modulated signal.
As described in Fig. 4 and Fig. 5, in the modulation flow of signal modulation subelement 374.Inside signal modulation subelement 374
IPPS obtain the first clock signal first.First selector can get the first clock signal and gps signal unit 330 is defeated
The pps pulse per second signal cnt gone out.Data first selector according to obtaining modulation intelligence and storing is capable of deciding whether as GPS moulds
Formula, if non-GPS patterns, then by the first clock signal export to door.When starting modulation, commencing signal is got with door
High level, starts counting up so as to will be exported as former state to the first counter, the first counter with the first clock signal cnt.Signal tune
Subunit 374 starts to read the data according to obtaining modulation intelligence and storing, can according to the data first comparator of storage
Obtain the delay time to the output of the network corresponding delay register.First comparator is according to the delay time into after line delay
Just the modulation of commencing signal.
At this time, the second counter also obtains first clock signal, in data of the signal modulation subelement 374 according to storage
Total number of timeslots, and by the total number of timeslots input the second counter in so that the second counter can export two paths of signals.Its
In, signal modulation subelement 374 is selected according in storage data to the progress time slot distribution of signal all the way, and also according to time slot distribution
Select arbitrary one or more terminals.As a kind of mode, the terminal quantity on 374 Zhong Mei roads of signal modulation subelement is 5, letter
Number modulation subunit 374 totally 20 terminals.Signal modulation subelement 374 can pass through the work(of corresponding terminal after terminal is selected
Rate register obtains the power coefficient of corresponding terminal and output.In addition, it can also pass through randomized jitter in signal modulation subelement 374
The mode that PN codes are multiplied by stepping carries out randomized jitter delay, and row randomized jitter delay is inputted to second selector.Signal
Each terminal of each network is equipped with constant time lag in modulation subunit 374.Signal modulation subelement 374 is according to the end of selection
Machine, can select the constant time lag of corresponding terminal, and the constant time lag is inputted to second selector.According to acquisition modulation intelligence
The data second selector of storage can interpolate that carrying out randomized jitter delay is still fixed delay.If delay is fixed,
Then the constant time lag of the corresponding terminal of second selector output is exported to the another way signal cnt2 of the second counter output, so that separately
Signal cnt2 is input in the 3rd counter again after delay is fixed all the way.3rd counter can be in the data according to storage
Pulse width counted to inputting road signal cnt2, and export two paths of signals again, it is respectively signal cnt3-1 and letter
Number cnt3-2.Two paths of signals is exported by calculating reading address after signal cnt3-1 outputs, it is respectively signal DATA-
RADDR and signal FREQ-RADDR.And calculating is also passed through after signal cnt3-2 outputs and reads address so as to obtain the effective arteries and veins of data
Rush data-cn.
User data in the data that signal modulation subelement 374 passes through storage, and signal DATA-RADDR, so that
Signal cnt3-2 switchs to serial data according to by the parallel data of 32bit/35bit user data, its data rate is 200ns.
Each terminal of each network is equipped with frequency point frequency in signal modulation subelement 374.Signal modulation subelement 374 is according to selection
Terminal, the frequency point frequency of corresponding terminal can be selected, can be according to the frequency point frequency of frequency point frequency modulated signal FREQ-RADDR
Rate.And signal modulation subelement 374 is also with the frequency point frequency of pseudo-random frequency modulated signal FREQ-RADDR.Signal modulation is single
Member 374 is by with the warbled signal FREQ-RADDR of the frequency point of terminal and the signal FREQ-RADDR modulated with pseudo-random frequency
Input third selector.Data second selector according to obtaining modulation intelligence and storing can interpolate that selection frequency point frequency tune
The output of system or the signal FREQ-RADDR of pseudo-random frequency modulation.Signal FREQ-RADDR is output to three table look-up devices and carries out
Look-up table.Wherein, look-up table 1 can+1.25M, look-up table 1 can be by signal FREQ-RADDR partially by signal FREQ-RADDR
- 1.25M partially, and look-up table 1 can be by the inclined 0M of signal FREQ-RADDR.The signal FREQ-RADDR of+1.25M partially and inclined -1.25M
Signal FREQ-RADDR, and parallel data switch to serial data by export the 4th selector synthesis modulation, the 4th selection
Device can be by the signal output after synthesis to the 5th selector.And the signal FREQ-RADDR of 0M partially is also fed to the 5th selection
Device.It is output+1.25M partially and the letter of -1.25M partially that data first selector according to obtaining modulation intelligence and storing, which can interpolate that,
Number, or the signal of the inclined 0M of output.The signal of 5th selector output is to DDS to be modulated, and the signal of DDS outputs is by multiplying
Musical instruments used in a Buddhist or Taoist mass is multiplied by the power coefficient of corresponding terminal, adds data effective impulse data-cn so as to produce Link16 link datas
Modulated signal.Finally, frequency has been output to AI and AQ more than 1065MHz modulated signals, and frequency is less than 1065MHz modulation letters
Number BI and BQ have been output to it.
According to modulation intelligence input by user, may be programmed processing unit 370 can select the net of simulation according to modulation intelligence
Network number and terminal number, realize the simulation of multiple network Link16 signals.Modulation intelligence input by user causes programmable place
Reason unit 370 modulate in pulse width, user data, frequency-hopping sequences, can be set with output power etc. when jumping, user can from
Define the signal of the Link16 patterns of its needs.In addition, according to modulation intelligence input by user, 370 energy of processing unit may be programmed
Enough time delays defined according to modulation intelligence between terminal, so as to fulfill the distance between terminal can be simulated.
Fig. 3 and Fig. 4 are referred to, signal frequency conversion output module 400 can obtain the electricity of 5V by being coupled with power module 100
Press to be worked normally.Signal frequency conversion output module 400 includes：Modulation treatment unit 410 and modulation output unit 420.
Modulation treatment unit 410 can be the IC chip for possessing signal handling capacity, and modulation treatment unit 410 can
Think based on miscellaneous programmable logic device (CPLD, Complex Programmable Logic Device) again, and including
Two local oscillators.Signal frequency conversion output module 400 is coupled with interface subelement 373, i.e. modulation treatment unit 410 and SPI sending and receiving are posted
Storage 3732 couples.Modulation treatment unit 410 with modulation output unit 420 by coupling, so as to be deposited according to SPI sending and receiving
The control of device 3732 and adjust modulation output unit 420 output power.In addition, signal frequency conversion output module 400 and clock list
Member 320 couple, i.e., modulation treatment unit 410 is coupled with TXCO crystal oscillators 321, modulation treatment unit 410 can obtain 10MHz when
Clock signal.Modulation treatment unit 410 can pass through the one of local oscillator output frequency of itself according to the clock signal of the 10MHz
Output unit 420 is extremely modulated for the first up-conversion clock signal of 769MHz.Modulation treatment unit 410 according to the 10MHz when
Clock signal can also be defeated to modulating for the second up-conversion clock signal of 1406MHz by another local oscillator output frequency of itself
Go out unit 420.
Output unit 420 is modulated to be used to carry out up-conversion and orthogonal modulation to two modulated signals of acquisition.Specifically, adjust
Output unit 420 processed can have two modulation channels, and one of modulation channels can obtain the first up-conversion clock signal, and
Obtain one of modulated signal.The passage can be by the modulated signal up-conversion extremely according to the first up-conversion clock signal
969MHz to 1065MHz.Another modulation channels can obtain the second up-conversion clock signal, and obtain another modulation letter
Number.The passage can be by the modulated signal up-conversion to 1113MHz to 1206MHz according to the second up-conversion clock signal.Modulation
The modulated signal of two up-conversions can also be carried out orthogonal modulation and be modulated with obtaining single network or Multi net voting by output unit 420
The radiofrequency signal of the Link16 link datas arrived, and the radiofrequency signal is exported.
In conclusion the utility model embodiment provides a kind of link signal simulator and system, link signal mould
Intend device and be applied to link signal simulation system, link signal simulation system includes：Terminal device, link signal simulator bag
Include：Signal modulation module and signal frequency conversion output module.Signal modulation module is coupled with signal frequency conversion output module, signal modulation
Module is used to couple with terminal device.
By the coupling of signal modulation module and terminal device, signal modulation module can obtain the tune of terminal device transmission
Information processed.Signal modulation module can modulate at least two modulated signals for generating and singly netting, signal modulation according to the modulation intelligence
Module can also modulate at least two modulated signals of generation networks combined according to the adjustment information.Signal frequency conversion output module leads to
Cross the coupling with signal modulation module, at least two modulation that signal frequency conversion output module will can be obtained from signal modulation module
Signal carries out frequency conversion, and is link radio frequency signals by least two modulated signal orthogonal modulations, and link radio frequency signals are defeated
Go out.Therefore, modulated by the modulation singly netted or the merging netted more, and at least two modulated signals are subjected to orthogonal modulation, from
And the simulation to multiple network Link16 signals is realized, greatly improve the actual use of Link16 link signals simulator
Applicability.
It these are only the preferred embodiment of the utility model, be not intended to limit the present invention, for this area
Technical staff for, various modifications and changes may be made to the present invention.Where within the spirit and principles of the present invention,
Any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of link signal simulator, it is characterised in that the link signal simulator is simulated applied to link signal
System, the link signal simulation system include：Terminal device, the link signal simulator include：Signal modulation module
With signal frequency conversion output module；The signal modulation module is coupled with the signal frequency conversion output module, the signal modulation mould
Block is used to couple with the terminal device；
The signal modulation module, the modulation intelligence sent for obtaining the terminal device, is modulated according to the modulation intelligence
At least two modulated signals of the single net of generation or networks combined, and each modulated signal is exported to the signal frequency conversion
Output module；
The signal frequency conversion output module, at least two of the acquisition modulated signal frequency conversion orthogonal modulations to be penetrated for link
Frequency signal, and the link radio frequency signals are exported.
2. link signal simulator according to claim 1, it is characterised in that the signal modulation module includes：It is main
Control unit, programmable processing unit and clock unit；The main control unit and the programmable processing unit be used to it is described
Terminal device couples, and the programmable processing unit is coupled with the main control unit and the signal frequency conversion output module respectively,
The clock unit is coupled with the programmable processing unit and the signal frequency conversion output module respectively；
The main control unit, for the terminal equipment in communication and obtain the modulation intelligence that the terminal device sends,
And the modulation intelligence is parsed and sent to the programmable processing unit；
The programmable processing unit, for modulating at least two institutes of the single net of generation or networks combined according to the modulation intelligence
Modulated signal is stated, and each modulated signal is exported to the signal frequency conversion output module, so that the signal frequency conversion
Output module is orthogonal by least two of the acquisition modulated signal up-conversions according to the clock signal that the clock unit exports
It is modulated to the link radio frequency signals and exports.
3. link signal simulator according to claim 2, it is characterised in that the programmable processing unit includes：
Interface subelement and signal modulation subelement, the interface subelement are used to couple with the terminal device, and interface is single
Member is coupled with the main control unit, the signal modulation subelement and the signal frequency conversion output module respectively, the signal tune
Subunit is coupled with the signal frequency conversion output module；
The interface subelement, the modulation intelligence sent for receiving the main control unit, and the modulation intelligence is sent out
Send to the signal modulation subelement, wherein, the modulation intelligence includes：Frequency hop sequences, performance number and data encapsulation；
The signal modulation subelement, for storing the modulation intelligence sent in the interface subelement, according to the tune
At least two modulated signals of modulates information generation list net or networks combined processed, and each modulated signal is exported
To the signal frequency conversion output module.
4. link signal simulator according to claim 2, it is characterised in that the signal modulation module further includes：
Gps signal unit and D/A conversion unit, the gps signal unit are coupled with programmable processing unit, the digital-to-analogue conversion list
Member is coupled with the clock unit, the programmable processing unit and the signal frequency conversion output module respectively.
5. link signal simulator according to claim 4, it is characterised in that the D/A conversion unit includes：The
One digital analog converter and the second digital analog converter, first digital analog converter respectively with the clock unit, described programmable
Processing unit and signal frequency conversion output module coupling, second digital analog converter respectively with the clock unit, described
Programmable processing unit and signal frequency conversion output module coupling.
6. link signal simulator according to claim 4, it is characterised in that the programmable processing unit also wraps
Include：GSP configures subelement and digital-to-analogue conversion configurations subelement, and GSP configuration subelements are coupled with the gps signal unit, described
Digital-to-analogue conversion configuration subelement is coupled with the D/A conversion unit.
7. link signal simulator according to claim 2, it is characterised in that the signal modulation module further includes：
Network interface unit, the main control unit and the programmable processing unit are used to by the network interface unit and the terminal device
Coupling.
8. link signal simulator according to claim 2, it is characterised in that the link signal simulator also wraps
Include：Display module, the display module are coupled with the main control unit.
9. link signal simulator according to claim 2, it is characterised in that the link signal simulator also wraps
Include：Power module, the power module be used for coupled with external power supply, the power module respectively with the main control unit, institute
State programmable processing unit and signal frequency conversion output module coupling.
10. a kind of link signal simulation system, it is characterised in that the link signal simulation system includes：Terminal device and power
Profit requires the link signal simulator described in 1-9 any one, the terminal device and the link signal simulator coupling
Close.
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|---|---|---|---|
| CN201721371498.8U CN207283530U (en) | 2017-10-20 | 2017-10-20 | Link signal simulator and system |
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|---|---|---|---|
| CN201721371498.8U CN207283530U (en) | 2017-10-20 | 2017-10-20 | Link signal simulator and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510182A (en) * | 2020-06-12 | 2020-08-07 | 成都锐新科技有限公司 | Link16 signal simulator |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111510182A (en) * | 2020-06-12 | 2020-08-07 | 成都锐新科技有限公司 | Link16 signal simulator |
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