CN108322273A - Flight data-link ground checkout equipment - Google Patents
Flight data-link ground checkout equipment Download PDFInfo
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- CN108322273A CN108322273A CN201810022666.5A CN201810022666A CN108322273A CN 108322273 A CN108322273 A CN 108322273A CN 201810022666 A CN201810022666 A CN 201810022666A CN 108322273 A CN108322273 A CN 108322273A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/44—Transmit/receive switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
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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
- H04B7/18502—Airborne stations
- H04B7/18506—Communications with or from aircraft, i.e. aeronautical mobile service
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- Aviation & Aerospace Engineering (AREA)
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- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the present invention provides a kind of flight data-link ground checkout equipment, belongs to field of communication technology.Including：Signal processing subsystem and antenna feeder subsystem；Signal processing subsystem includes master control and human-computer interaction module, digital signal processing module, digital interface processing module, frequency synthesizer and Up/Down Conversion module, backboard link block and power module；Digital signal processing module, digital interface processing module and frequency synthesizer and Up/Down Conversion module are connect with master control and human-computer interaction module and power module respectively by backboard link block；Digital signal processing module is used for digital interface processing module transmission of control signals；Since the multinomial special test event demand of flight data-link can be met, and flight data-link motion range can be covered.In addition, overall structure is simple, at low cost and measuring stability is good.
Description
Technical field
The present embodiments relate to fields of communication technology, more particularly, to a kind of flight data-link ground checkout equipment.
Background technology
With the development of the communication technology, data-link as link various optimal in structures, optimization information resources, be effectively equipped with and
Using the technology of operation energy, effect gradually highlights.Data-link is the data link relationship established between a kind of multiple spot, with reality
Now synchronous commander, guiding.By data-link being each closed platform, independent individual originally, closely link together,
To reach the ability of collaborative work.To ensure that data catenary system normal operation, the importance of data-link test are more and more obvious.
Since to have the advantages that long range, data information transfer, collaboration use etc. a variety of for datalink, to be obtained in flight field
It is widely applied.Core cell of the data-link terminal as data catenary system, be not only responsible for it is empty and empty, it is logical between sky
Letter, is also relate to the validity of resource-sharing.Data catenary system is a kind of military the synthetical electronics information system of large size, be can be used for
Realize data information exchange, it builds the datalink network of particular architecture based on communication medium, by two or more controls
Control equipment and test system link together, and by data information readable in test equipment, realize data information between platform
High efficiency interactive.For flight data-link, it is badly in need of a kind of flight data-link ground checkout equipment at present, it is more to meet flight data-link
The special test event demand of item.
Invention content
To solve the above-mentioned problems, the embodiment of the present invention provides one kind and overcoming the above problem or solve at least partly
State the flight data-link ground checkout equipment of problem.
One side according to the ... of the embodiment of the present invention, provides a kind of flight data-link ground checkout equipment, which includes：
Signal processing subsystem and antenna feeder subsystem；Signal processing subsystem includes master control and human-computer interaction module, Digital Signal Processing
Module, digital interface processing module, frequency synthesizer and Up/Down Conversion module, backboard link block and power module；Digital Signal Processing
Module, digital interface processing module and frequency synthesizer and Up/Down Conversion module by backboard link block respectively with master control and human-computer interaction
Module and power module connection；Digital signal processing module is used for digital interface processing module transmission of control signals；Number connects
Mouth processing module, for externally providing interface；Frequency synthesizer and Up/Down Conversion module, for providing synchronization to digital signal processing module
Reference clock signal, and realize the conversion between dpch signal, medium-frequency receiving and sending signal and radio-frequency receiving-transmitting signal；Frequency synthesizer and
Up/Down Conversion module, for realizing medium-frequency receiving and sending signal to the conversion between radio-frequency receiving-transmitting wire signal；Antenna feeder subsystem, is used for
Realize radio-frequency receiving-transmitting wire signal to the conversion between radio-frequency receiving-transmitting wireless signal.
Flight data-link ground checkout equipment provided in an embodiment of the present invention, simple in structure, at low cost, measuring stability
It is good；It disclosure satisfy that the multinomial special test event demand of flight data-link, including wired/wireless transmission communication pattern, wire/wireless
Receive communication pattern, wireless networking communications pattern；Dual-mode antenna field angle is adjustable, and can cover flight data chain movement model
It encloses；Transceiver mode performance is stablized, and more than 45dBc, receiver noise factor is less than 6dB for output signal harmonic wave and spurious reduction；
May be implemented send signal digital Doppler frequency it is adjustable, range, can Virtual Realization flight up to 600kHz, minimum step 30Hz
Data-link Doppler changes；High certainty of measurement, 0.1ppm can be better than by sending the frequency accuracy of signal；Environment-adapting ability can be passed through
Screening experiment, including the experiment of random vibration test, temperature cycling test, high/low temperature and preventing test (i.e. long-distance transportation) etc.,
Ensure that the environmental suitability of this ground checkout equipment is strong；The convertibility of hardware components may be implemented, if products-hardware occurs
Failure can directly replace corresponding board；Can a variety of test patterns directly be realized by the upper computer software in blade computers
And the processing to test data, convenient in real time monitoring and it is easily operated.
It should be understood that above general description and following detailed description is exemplary and explanatory, it can not
Limit the embodiment of the present invention.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of flight data-link ground checkout equipment of the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of digital signal panel card of the embodiment of the present invention；
Fig. 3 is that a kind of digital interface of the embodiment of the present invention handles the structural schematic diagram of board；
Fig. 4 is a kind of structural schematic diagram of radio-frequency signal processing module of the embodiment of the present invention；
Fig. 5 is a kind of structural schematic diagram of RF receiving and transmission module of the embodiment of the present invention；
Fig. 6 is a kind of operation principle schematic diagram of RF receiving and transmission module of the embodiment of the present invention.
Specific implementation mode
With reference to the accompanying drawings and examples, the specific implementation mode of the embodiment of the present invention is described in further detail.With
Lower embodiment is not limited to the range of the embodiment of the present invention for illustrating the embodiment of the present invention.
An embodiment of the present invention provides a kind of flight data-link ground checkout equipments, and referring to Fig. 1, which includes：Signal
Processing subsystem and antenna feeder subsystem；Signal processing subsystem include master control and human-computer interaction module, digital signal processing module,
Digital interface processing module, frequency synthesizer and Up/Down Conversion module, backboard link block and power module；Digital signal processing module,
Digital interface processing module and frequency synthesizer and Up/Down Conversion module by backboard link block respectively with master control and human-computer interaction module
And power module connection；
Digital signal processing module is used for digital interface processing module transmission of control signals；Digital interface processing module,
For externally providing interface；Frequency synthesizer and Up/Down Conversion module, for providing synchronous refernce clocks letter to digital signal processing module
Number, and realize the conversion between dpch signal, medium-frequency receiving and sending signal and radio-frequency receiving-transmitting signal；Frequency synthesizer and Up/Down Conversion mould
Block, for realizing medium-frequency receiving and sending signal to the conversion between radio-frequency receiving-transmitting wire signal；Antenna feeder subsystem is received for realizing radio frequency
Wire signal is sent out to the conversion between radio-frequency receiving-transmitting wireless signal.
Equipment provided in an embodiment of the present invention, user can select corresponding test module to survey on upper computer software
Examination, including the normal Acceptance Tests module of 1553B connectivity test module, node, node often send out test module, node antennas configuration testing
Module, networking test module and integration test module.In above-mentioned test module only under integration test module, ground test is set
It is standby to be controlled by survey hair control, that is, hair control is surveyed by issuing time synchronization instruction and pattern configurations instruction etc. to host computer to realize to surveying
The control of equipment is tried, and then realizes that networking and data information between test equipment and node interact.In addition to integration test
Test module be not related to surveying the control of hair control, the control to test equipment is directly realized to sending instructions under FPGA by host computer
System.Simultaneously in above-mentioned test process, user can monitor test mode and test data letter in real time in human-computer interaction interface
Breath, and realize the functions such as preservation, record and printing.
Wherein, frequency synthesizer and Up/Down Conversion module and antenna feeder subsystem may together form radiofrequency signal generation module, to realize
Conversion of the intermediate-freuqncy signal to the wired receiving and transmitting signal of radio frequency and wireless radiofrequency receiving and transmitting signal.Wireless communication is carried out by antenna feeder subsystem
Number radio-frequency receiving-transmitting.Data transmit-receive in flight data-link is mainly in the RF receiving and transmission module in radio-frequency signal processing module
It completes, when receiving wireless data information by antenna feeder subsystem, the radio-frequency signal processing module of FPGA can be first passed through to this
Data information handle and is uploaded to host computer by serial ports, then the data information is handled and shown by host computer
The operations such as show, store.Power module is that each subsystem of whole system is powered.Under the collaborative work of all modules, as
A kind of alternative embodiment, the operating mode of the equipment, which can be divided into, to be sent communication pattern, receives communication pattern or wireless group Netcom
Letter pattern.Antenna feeder subsystem, it may include radio-frequency front-end, dual-mode antenna and mating direction adjustable mechanism etc..
Wherein, it can be wired or wireless transmission communication pattern to send communication pattern.If the operating mode of equipment is to send
Communication pattern, then equipment be in any one in following four transmission state, it is respectively wired hair that following four, which sends state,
Send agreement waveform, wired transmission test waveform, wireless transmission agreement waveform, wireless transmission test waveform.
If the operating mode of equipment is to receive communication pattern, equipment is in cable network reception state or wireless receiving state.
At this point, equipment is in reception state and can receive and demodulate number by wired and wireless two kinds of connection status according to communication protocol
According to, and complete data and the functions such as report and show.
If the operating mode of equipment is wireless networking communications pattern, equipment has the initiative node test state or passive section
Point test mode.At this point, the equipment realizes the switching for the state of sending and receiving by time division duplex (TDD) mode.It is saved in active
Under point test mode, which carries out time slot to measured piece DUT as active node and authorizes operation.In passive node test mode
Under, the equipment is as the passive node reception measured piece DUT time slots authorized and is communicated.
As a kind of alternative embodiment, master control and human-computer interaction module, for generating and acquiring baseband signal, intermediate frequency letter
Number, radio frequency wire signal and rf wireless signal, be additionally operable to test flight data-link.Wherein, master control and human-computer interaction module can
Using the 3U blade type processors of ADLINK.Interactive software is run in blade computers, realizes user to test equipment
Control and the interpretation to test result.User can control test equipment by master control and human-computer interaction module, realize
Generation and acquisition to baseband signal, intermediate-freuqncy signal, radio frequency wire signal, rf wireless signal, complete the test of data-link.
Blade computers can provide human-computer interaction interface, can monitor the interaction shape of the data information of entire test system in real time
State, and also provide and the functions such as real-time update, preservation and printing are carried out to test data.Pass through the host computer in blade computers
Software can need to select corresponding test pattern according to user and configure corresponding radio frequency parameter.
As a kind of alternative embodiment, digital signal processing module, for generating and receiving high-speed interface signal and low speed
Interface signal, and send signal and acquisition baseband receiving signals for generating base band.Specifically, digital signal processing module can be with
Including a digital Signal transacting board analysis, the structure of digital signal panel card can be as shown in Figure 2.In digital signal panel card
FPGA be used to undertake the generation and reception of high-speed interface signal and low-speed interface signal, while digital signal panel card is equipped with
Two panels DA can generate two-way base band and send signal, the high-speed AD acquisition Baseband Receiver being equipped with by digital signal panel card is believed
Number.The clock of external radio-frequency module provides high steady clock by the clock distribution signal on plate to AD/DA.Wherein, the clock of DA
Rate is 1.5Gsps, and the clock rate of AD is 500Msps.The mode for receiving and dispatching baseband signal is time division duplex, signal center frequency
All it is 175Mhz, signal bandwidth is 30Mhz.Digital signal panel card offer Digital Signal Processing, including intermediate-freuqncy signal
It generates and acquires, control the generation of signal and the realization of core algorithm.
As a kind of alternative embodiment, digital interface processing module may include a digital interface reason board, structure
It can be as shown in Figure 3.According to actual demand, system need to provide a variety of external interfaces, and digital interface part is handled by digital interface
Board is realized.It can be controlled by the connecting line of J30J-100 between digital interface processing board sum number word Signal transacting board analysis
The transmission of signal.Control signal accesses digital interface processing board by J30J interfaces and is output to and penetrates after level conversion
Frequency control interface RF_ctrl and 1553B external interface.Wherein, 1553B external interfaces devise the different bridgt circuit of two-way,
As master backup, can be gated according to demand.
As a kind of alternative embodiment, frequency synthesizer and Up/Down Conversion module include radio-frequency signal processing module；At radiofrequency signal
It includes signal processing channel and antenna feeder module to manage module；Wherein, signal processing channel is IF signal processing and/or radiofrequency signal
Treatment channel；Signal processing channel is additionally operable to realize base for providing synchronous refernce clocks signal to digital signal processing module
Conversion between tape handling signal, medium-frequency receiving and sending signal and radio-frequency receiving-transmitting signal；Antenna feeder module, for receiving and dispatching different letters
Number.
Radio-frequency signal processing module completes conversion, power amplification, transmission, reception and the processing of signal.It refers here to
Signal have intermediate-freuqncy signal, radiofrequency signal etc..
For example, signal processing channel may include 1 frequency synthesizer module, 1 radio-frequency signal processing module, at 1 intermediate-freuqncy signal
Manage module, 1 power module, 1 control module.Frequency synthesizer module provides local oscillation signal for Up/Down Conversion channel 1/2, while being base
Band signal generates board and provides system clock；Frequency synthesizer module has inside and outside clock with source reference handoff functionality.Radiofrequency signal handles mould
Block realizes AD/DA signals to the conversion between radio-frequency receiving-transmitting signal.IF signal processing module realizes that AD/DA signals to intermediate frequency is received
Switching between signalling.Power module takes electricity from CPCIe connectors.Control module realizes the control to internal system module.Letter
Number treatment channel can meet the requirement of high/low temperature and vibration.
As a kind of alternative embodiment, signal processing channel includes frequency synthesizer module, control module and signal processing module；Its
In, signal processing module is IF signal processing and/or radio-frequency signal processing module；Frequency synthesizer module, for leading to for Up/Down Conversion
Road provides local oscillation signal, and for providing clock signal of system to generate baseband signal；Signal processing module, being used for will be at base band
Reason signal is converted to radio-frequency receiving-transmitting signal, and/or, dpch signal is converted into medium-frequency receiving and sending signal；Control module is used for
Realize the control to frequency synthesizer module and signal processing module.
As a kind of alternative embodiment, antenna feeder module includes radio-frequency front-end, dual-mode antenna, power supply and feeder line.Wherein, it receives and dispatches
Antenna can be protected by antenna house, and on height adjustable mechanical holder.Antenna feeder module can meet high/low temperature and vibration requires.
As a kind of alternative embodiment, radio-frequency signal processing module further includes RF receiving and transmission module；RF receiving and transmission module is used
In receiving and transmitting signal, and the display of the operation and control, test result for completing system testing and the instruction of test mode.According to penetrating
The operation principle of frequency transceiver module, RF receiving and transmission module are divided into two autonomous channels of radio frequency reception and transmitting, and prevention at radio-frequency port passes through
After duplexer termination, external dual-mode antenna.The radio frequency reception and transmission channel of identical transmitting-receiving frequency, through the reversible two-stage of overfrequency
Up/Down Conversion relationship is, it can be achieved that conversion between radio frequency and IF frequency.To improve Signal segregation degree, transmitting-receiving is carried out using switch
Switching, and according to the operating mode of transmitting-receiving time division duplex, close non-present active link power supply, while to realize transceiver channel
Winding self-test realize the loop switch of radio frequency winding signal, and it is real to pass through ATT in output end by two SPDT switches
Now the automatic programme control of signal power and gain is switched.
Radio-frequency signal processing module realizes dpch signal between intermediate frequency test signal and RF test signal
Conversion, while clock is provided to digital signal panel card, structural schematic diagram is as shown in Figure 4.Radio-frequency signal processing module from
Include two parts, i.e. signal processing channel in above-described embodiment and antenna feeder module in the form of the composition.Wherein, signal processing channel
The horizontal plate cards of CPCIe 6U can be packaged into, 2 slot positions are occupied.Antenna feeder module includes radio-frequency front-end, dual-mode antenna and corresponding electricity
Source and control are packaged into a customization structure.Radio-frequency signal processing module can meet multiple functions requirement, including high/low temperature and shake
It is dynamic to require；All comprising modules can have idle function, can realize that radio-frequency module is standby by external command；Receiving channel can have
There is gain control function, can realize that receiving channel gain controls by external command；Sendaisle can have gain control function,
Transmission channel gain control is realized by external command；Time-multiplexed side can be used in radio frequency sendaisle and radio frequency reception channel
Formula can be controlled transmitting-receiving switching by external control signal, and retain a kind of receive and dispatch from closed loop test pattern；Frequency synthesizer module can be base
Band signal processing module provides work clock；Frequency synthesizer module should also have in addition to internal reference source and receive external reference letter
Number and local oscillator is locked to the function on external reference signal, internal reference source should power off at this time；It can opening a way, be short with antenna
Road protection, power amplifier overheating protection, power supply overvoltage protection etc..
RF receiving and transmission module in radio-frequency signal processing module has been partially completed the signal transmitting and receiving task of this system, operates in
Upper computer software in blade computers can complete the operation and control of system testing and test result is shown, state instruction etc. is appointed
Business, such as whether successfully etc. for the configuration and transmission of the radio frequency parameter under different test patterns, networking.
As a kind of alternative embodiment, RF receiving and transmission module includes frequency synthesizer unit, upconverting unit, down-converter unit, work(
It puts unit, preposition pre-selection and amplifying unit, transmitting-receiving loopback test unit, Duplexer Unit, emission medium-frequency unit, receive intermediate frequency list
Member, monitoring and communication unit and power supply unit；
Frequency synthesizer unit, for generating the synchronous refernce clocks needed for broadband frequency sweep local oscillation signal and digital signal processing module
Signal, and exported after filtered amplification；Upconverting unit turns for realizing medium-frequency receiving and sending signal between radio-frequency receiving-transmitting signal
It changes；Down-converter unit, for realizing radio-frequency receiving-transmitting signal to the conversion between medium-frequency receiving and sending signal；Power amplifier unit, for amplifying
Emission signal frequency；Preposition pre-selection and amplifying unit receive signal, AGC detections and low noise amplification for preposition pre-selection；Transmitting-receiving
Loopback test unit, for carrying out loopback test to signal transmitting and receiving channel；Duplexer Unit, for realizing radio-frequency receiving-transmitting signal
Two-way communication；Emission medium-frequency unit, for realizing the gain-adjusted and bandpass filtering to IF input signals；Receive intermediate frequency list
Member, for realizing gain amplification, filtering and the AGC processing of the intermediate-freuqncy signal generated to down coversion；Monitoring and communication unit, are used for
Realize the monitoring of radio-frequency enabled working condition and the configuration of running parameter.Wherein, the structural schematic diagram of RF receiving and transmission module can be such as
Shown in Fig. 5.
Specifically, frequency synthesizer unit mainly generates broadband frequency sweep local oscillation signal (stepping 1KHz) and digital signal acquiring board institute
The synchronous refernce clocks signal needed, and exported after filtered amplification.Include mainly：OCXO, VCO, PLL, amplification, switch filtering etc.
Circuit.
Upconverting unit mainly realizes conversion of the intermediate-freuqncy signal to radiofrequency signal, and according to the design needs, upconverting unit is set
Meter is mixed using two-stage.In addition, upconverting unit also includes the bandpass filtering and enhanced processing to each intermediate frequency, it is main comprising mixed
Frequently, the circuits such as amplification, filtering, program-controlled decaying.Down-converter unit mainly conversion of the real radiofrequency signal to intermediate-freuqncy signal.According to transmitting-receiving
The usage scenario not worked at the same time, down converted frequencies transformational relation are the inverse process of upconverting unit, and which is not described herein again.Equally
Down-converter unit includes mainly the circuits such as mixing, amplification, filtering, program-controlled decaying.
Power amplifier unit realizes that transmitting signal power is amplified to 25dBm or more (cable waste and antenna gain have been fallen in conversion),
Power amplifier unit includes mainly two level power amplifier and periphery and alc circuit.Before preposition pre-selection and amplifying unit realize the docking collection of letters number
Pre-selection, AGC detections and low noise amplification are set, link noise is controlled and received and is less than 4dB.The unit includes mainly detecting circuit, opens
Close filter group and low noise amplifier circuit.
Loopback test of the loopback test unit realization to module transceiver channel is received and dispatched, core is realized by SPDT switch,
It realizes radio-frequency transmissions and receives signal and switch with the channel of duplexer and receiving-transmitting chain, that is, be switched to switch when working normally
The transmitting-receiving port of duplexer, and when loopback test pattern (off working state), then receiving and transmitting signal is switched to Up/Down Conversion respectively
Unit, to realize the winding self-checking of inside modules receiving and transmitting signal.Duplexer Unit realizes the two-way of radio-frequency receiving-transmitting signal
Letter, is mainly made of 2 groups of filter with same frequency.
Emission medium-frequency unit realizes the gain-adjusted and bandpass filtering to IF input signals, controls incoming signal level,
It is main to include the circuits such as decaying, filtering to ensure that mixer linearity index is met the requirements.Intermediate frequency unit is received to realize to down coversion
Gain amplification, filtering and the AGC processing of the intermediate-freuqncy signal of generation, are at least realized outside the gain-adjusted range of 30dB and the band of 80dB
Inhibit filtering, it is main to include the circuits such as amplification, filtering, decaying.
Monitoring and communication unit mainly realize radio-frequency enabled Working Status Monitoring and running parameter configuration, are automatically performed module
Power-on self-test, temperature monitoring, ALC, AGC control, and realize and communicated with the RS232 between host computer, it is the control of entire module
Center；The unit is built using FPGA and its peripheral circuit as core, embeds monitoring and configurator.Power supply unit provides module work
Various voltages needed for making, such as+9V, ± 24V ,+5V ,+3.3V ,+1.2V；Mainly comprising DC/DC, LDO, EMI filtering, mistake
Stream, overvoltage crowbar etc..
RF receiving and transmission module improves Module Reliability using transmitting-receiving timesharing half-duplex operating mode to simplify circuit scale,
RF receiving and transmission module uses the identical frequency conversion relationship of Up/Down Conversion, is maximally utilized to frequency synthesizer module with realizing, work
The schematic diagram for making principle is as shown in Figure 6.
Flight data-link ground checkout equipment provided in an embodiment of the present invention, simple in structure, at low cost, measuring stability
It is good；It disclosure satisfy that the multinomial special test event demand of flight data-link, including wired/wireless transmission communication pattern, wire/wireless
Receive communication pattern, wireless networking communications pattern；Dual-mode antenna field angle is adjustable, and can cover flight data chain movement model
It encloses；Transceiver mode performance is stablized, and more than 45dBc, receiver noise factor is less than 6dB for output signal harmonic wave and spurious reduction；
May be implemented send signal digital Doppler frequency it is adjustable, range, can Virtual Realization flight up to 600kHz, minimum step 30Hz
Data-link Doppler changes；High certainty of measurement, 0.1ppm can be better than by sending the frequency accuracy of signal；Environment-adapting ability can be passed through
Screening experiment, including the experiment of random vibration test, temperature cycling test, high/low temperature and preventing test (i.e. long-distance transportation) etc.,
Ensure that the environmental suitability of this ground checkout equipment is strong；The convertibility of hardware components may be implemented, if products-hardware occurs
Failure can directly replace corresponding board；Can a variety of test patterns directly be realized by the upper computer software in blade computers
And the processing to test data, convenient in real time monitoring and it is easily operated.
Finally, the equipment of the application is only preferable embodiment, is not intended to limit the protection model of the embodiment of the present invention
It encloses.With within principle, any modification, equivalent replacement, improvement and so on should be included in all spirit in the embodiment of the present invention
Within the protection domain of the embodiment of the present invention.
Claims (9)
1. a kind of flight data-link ground checkout equipment, which is characterized in that including：Signal processing subsystem and antenna feeder subsystem；
The signal processing subsystem includes master control and human-computer interaction module, digital signal processing module, digital interface processing module, frequency
Comprehensive and Up/Down Conversion module, backboard link block and power module；The digital signal processing module, digital interface processing
Module and the frequency synthesizer and Up/Down Conversion module by the backboard link block respectively with the master control and human-computer interaction module
And the power module connection；
The digital signal processing module is used for the digital interface processing module transmission of control signals；The digital interface
Processing module, for externally providing interface；The frequency synthesizer and Up/Down Conversion module, for being carried to the digital signal processing module
For synchronous refernce clocks signal, and realize the conversion between dpch signal, medium-frequency receiving and sending signal and radio-frequency receiving-transmitting signal；
The frequency synthesizer and Up/Down Conversion module, for realizing medium-frequency receiving and sending signal to the conversion between radio-frequency receiving-transmitting wire signal；It is described
Antenna feeder subsystem, for realizing radio-frequency receiving-transmitting wire signal to the conversion between radio-frequency receiving-transmitting wireless signal.
2. equipment according to claim 1, which is characterized in that the operating mode of the equipment is to send communication pattern, connect
Receive communication pattern or wireless networking communications pattern；
If the operating mode of the equipment is to send communication pattern, the equipment is in arbitrary in following four transmission state
One kind, it is respectively wired transmission agreement waveform, wired transmission test waveform, wireless transmission agreement that the following four, which sends state,
Waveform, wireless transmission test waveform；
If the operating mode of the equipment is to receive communication pattern, the equipment is in cable network reception state or wireless receiving shape
State；
If the operating mode of the equipment be wireless networking communications pattern, the equipment have the initiative node test state or by
Dynamic node test state.
3. equipment according to claim 1, which is characterized in that the master control and human-computer interaction module, for generating and adopting
Collect baseband signal, intermediate-freuqncy signal, radio frequency wire signal and rf wireless signal, is additionally operable to test flight data-link.
4. equipment according to claim 1, which is characterized in that the digital signal processing module, for generating and receiving
High-speed interface signal and low-speed interface signal, and send signal and acquisition baseband receiving signals for generating base band.
5. equipment according to claim 1, which is characterized in that the frequency synthesizer and Up/Down Conversion module include at radiofrequency signal
Manage module；The radio-frequency signal processing module includes signal processing channel and antenna feeder module；Wherein, the signal processing channel is
IF signal processing and/or radiofrequency signal treatment channel；
The signal processing channel is additionally operable to reality for providing synchronous refernce clocks signal to the digital signal processing module
Existing conversion between dpch signal, medium-frequency receiving and sending signal and radio-frequency receiving-transmitting signal；The antenna feeder module, for receiving and dispatching not
Same wireless signal.
6. equipment according to claim 5, which is characterized in that the signal processing channel includes frequency synthesizer module, control mould
Block and signal processing module；Wherein, the signal processing module is IF signal processing and/or radio-frequency signal processing module；Institute
Frequency synthesizer module is stated, for providing local oscillation signal for Up/Down Conversion channel, and for providing system clock letter to generate baseband signal
Number；
The signal processing module, for dpch signal to be converted to radio-frequency receiving-transmitting signal, and/or, Base-Band Processing is believed
Number be converted to medium-frequency receiving and sending signal；The control module, for realizing the control to the frequency synthesizer module and signal processing module.
7. equipment according to claim 5, which is characterized in that the antenna feeder module includes radio-frequency front-end, dual-mode antenna, electricity
Source and feeder line.
8. equipment according to claim 5, which is characterized in that the radio-frequency signal processing module further includes radio-frequency receiving-transmitting mould
Block；The RF receiving and transmission module is used for receiving and transmitting signal, and the display of the operation and control, test result for completing system testing
And the instruction of test mode.
9. equipment according to claim 8, which is characterized in that the RF receiving and transmission module includes frequency synthesizer unit, up-conversion
Unit, down-converter unit, power amplifier unit, preposition pre-selection and amplifying unit, transmitting-receiving loopback test unit, Duplexer Unit, transmitting
Intermediate frequency unit receives intermediate frequency unit, monitoring and communication unit and power supply unit；
The frequency synthesizer unit, for generating the synchronous reference needed for broadband frequency sweep local oscillation signal and the digital signal processing module
Clock signal, and exported after filtered amplification；The upconverting unit, for realizing medium-frequency receiving and sending signal to radio-frequency receiving-transmitting signal
Between conversion；The down-converter unit, for realizing radio-frequency receiving-transmitting signal to the conversion between medium-frequency receiving and sending signal；The work(
Unit is put, for amplifying emission signal frequency；The preposition pre-selection and amplifying unit receive signal, AGC inspections for preposition pre-selection
Involve low noise amplification；The transmitting-receiving loopback test unit, for carrying out loopback test to signal transmitting and receiving channel；The duplexer
Unit, for realizing the two-way communication of radio-frequency receiving-transmitting signal；The emission medium-frequency unit, for realizing to IF input signals
Gain-adjusted and bandpass filtering；The reception intermediate frequency unit, for realizing the intermediate-freuqncy signal that down coversion is generated gain amplification,
Filtering and AGC processing；The monitoring and communication unit, for realizing the monitoring of radio-frequency enabled working condition and matching for running parameter
It sets.
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| CN112333041A (en) * | 2020-10-23 | 2021-02-05 | 上海航天测控通信研究所 | Space air-to-air communication testing device |
| CN114337866A (en) * | 2022-01-04 | 2022-04-12 | 北京电子工程总体研究所 | Aircraft communication testing arrangement and system |
| CN116582164A (en) * | 2023-07-07 | 2023-08-11 | 四川九洲空管科技有限责任公司 | Multimode ground aviation communication radio station |
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