CN209692782U - A kind of digital RF test macro - Google Patents
A kind of digital RF test macro Download PDFInfo
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- CN209692782U CN209692782U CN201920390981.3U CN201920390981U CN209692782U CN 209692782 U CN209692782 U CN 209692782U CN 201920390981 U CN201920390981 U CN 201920390981U CN 209692782 U CN209692782 U CN 209692782U
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Abstract
The utility model discloses a kind of digital RF test macros, it is connected between digital RF system and PC host computer, including digital processing element, SFP optical module, Wavelength division multiplexing module, power supply unit, the PC host computer, digital processing element, SFP optical module, Wavelength division multiplexing module, digital RF system are sequentially connected, the digital processing element is connect with digital RF system, and the power supply unit is connect with digital processing element, SFP optical module, Wavelength division multiplexing module respectively.The utility model carries out MSK, BPSK, ASK modulation, while the intermediate-freuqncy signal of digital RF system acquisition is received by optical fiber；Functional test, including digital modulation, transmitting amplitude and phase weighting, channel independent control, power amplification, transmitting-receiving calibration, self-test etc. are carried out to digital radio frequency system, and receive the feedback communication of digital RF system.
Description
Technical field
The utility model relates to technical field of electronic communication, are a kind of digital RF test macros specifically.
Background technique
In communication and electronic technology increasingly developed today, all systems are still by various component groups, Duo Zhongduo
The component of sample still plays the role of development foundation stone in various industries, this role is indispensable, and varied.With
The progress of technology, modern wireless technology develop towards three directions: first is that digitlization, but intelligent, third is that concealment
By force.Meanwhile in view of the behavioral characteristic of identification current radio frequency equipment, the signal information critically important as one must in radio frequency testing
It is indispensable.Usually used conventional tool, such as: frequency sweep spectrum analyzer (SA) and Vector Signal Analyzer (VSA) may be
Signal overview is provided in frequency domain and modulation domain, but it is usually unable to satisfy digitlization, intelligentized signal testing.
Utility model content
The purpose of this utility model is to provide a kind of digital RF test macro, for digital RF system provide TR, AM,
The signals such as ASK, PSK control the test macro and carry out MSK, BPSK, ASK modulation, while receiving digital RF system by optical fiber
The intermediate-freuqncy signal of acquisition.
The utility model is achieved through the following technical solutions: a kind of digital RF test macro is connected to digital RF system
Between system and PC host computer, including digital processing element, SFP optical module, Wavelength division multiplexing module, power supply unit, the PC upper
Machine, digital processing element, SFP optical module, Wavelength division multiplexing module, digital RF system are sequentially connected, the digital processing element
It is connect with digital RF system, the power supply unit is connect with digital processing element, SFP optical module, Wavelength division multiplexing module respectively.
Further, in order to preferably realize the utility model, the digital processing element uses fpga chip, described
The model XC7K355T-2FFG901I of fpga chip.
Further, in order to preferably realize the utility model, the model SPEC-MCWDM- of the Wavelength division multiplexing module
000X-A。
Further, in order to preferably realize the utility model, there are two the Wavelength division multiplexing modules, each wavelength-division multiplex
Module is connect by optical fiber with digital RF system；Each Wavelength division multiplexing module has nine tunnel decomposition channels, and every road is decomposed
Channel is connect with SFP optical module.
Further, in order to preferably realize the utility model, the quantity of the SFP optical module is multiple, wavelength-division multiplex
Module is correspondingly connected with a SFP optical module per decomposition channels all the way, each SFP optical module with fpga chip
The connection of GTX interface.
Further, in order to preferably realize the utility model, the model TLZ850M10GQ of the SFP optical module.
It further, further include that the MAX3232 connecting respectively with fpga chip is received in order to preferably realize the utility model
Device, 3 pieces of MAX3490 transceivers are sent out, the MAX3232 transceiver is connect with PC host computer, 3 pieces of MAX3490 transceivers point
It is not connect with digital RF system.
It further, further include the power being connect respectively with digital RF system in order to preferably realize the utility model
Meter, frequency spectrograph.
It further, further include clock source unit in order to preferably realize the utility model, the clock source unit difference
It is connect with fpga chip and digital radio frequency system.
It further, further include the temperature sensing being connect respectively with fpga chip in order to preferably realize the utility model
Device, FLASH chip, reset chip；The model DS18B20 of the temperature sensor；The model of the FLASH chip
M25P128；The model TCM809 of the reset chip.
Working principle:
PC host computer is when receiving signal, combining that each Wavelength division multiplexing module sends digital RF system by optical fiber
Optical signal is decomposed into the optical signal of nine road different wave lengths, is connected respectively a SFP optical module per photo-signal channel all the way,
SFP optical module converts optical signals to electric signal transmission into fpga chip, fpga chip receive carry out after signal it is corresponding under
The control signal parsed is transmitted to digital RF system, while information being uploaded by the digital processings such as frequency conversion, filtering, extraction
To PC host computer.
PC host computer is sent to fpga chip when transmitting signals, by control instruction, and fpga chip selects transmission channel control
Then system, modulation system pass through fpga chip including carry out MSK, BPSK, ASK modulation to signals such as TR, AM, ASK, PSK
GTX interface send modulated signal to SFP optical module, SFP optical module converts a signal into optical signal, then passes through wavelength-division
Multiplexing module generates combining fiber-optic signal, is transmitted to digital RF system.
The utility model compared with prior art, have the following advantages that and the utility model has the advantages that
(1) the utility model carries out MSK, BPSK, ASK modulation, while receiving digital RF system acquisition by optical fiber
Intermediate-freuqncy signal；
(2) the use of the new type carries out functional test, including digital modulation, transmitting amplitude and phase to digital radio frequency system
Weighting, channel independent control, power amplification, transmitting-receiving calibration, self-test etc., and receive the feedback communication of digital RF system.
Detailed description of the invention
Fig. 1 is Tthe utility model system module frame chart；
Fig. 2 is Tthe utility model system principle of compositionality figure；
Fig. 3 is the utility model digital processing element schematic diagram；
Fig. 4 is working principle diagram when the utility model PC host computer receives signal；
Fig. 5 is working principle diagram when the utility model PC host computer emits signal.
Specific embodiment
The utility model is described in further detail below with reference to embodiment, but the embodiments of the present invention is not
It is limited to this.
Embodiment 1:
The utility model is achieved through the following technical solutions, as shown in Figs. 1-5, a kind of digital RF test macro, connection
Between digital RF system and PC host computer, including digital processing element, SFP optical module, Wavelength division multiplexing module, power supply list
Member, the PC host computer, digital processing element, SFP optical module, Wavelength division multiplexing module, digital RF system are sequentially connected, described
Digital processing element is connect with digital RF system, the power supply unit respectively with digital processing element, SFP optical module, wavelength-division
Multiplexing module connection.
It should be noted that the utility model proposes a kind of digital RF test macros by above-mentioned improvement, penetrated for number
Display system provides the signals such as TR, AM, ASK, PSK, controls the test macro and carries out MSK, BPSK, ASK modulation, while passing through optical fiber
Receive the intermediate-freuqncy signal of digital RF system acquisition.The test macro carries out functional test, including number to digital radio frequency system
Word modulation, transmitting amplitude and phase weighting, channel independent control, power amplification, transmitting-receiving calibration, self-test etc., and receive number and penetrate
The feedback communication of display system.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 2:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figs. 1-5, the digital processing element
Using fpga chip, the model XC7K355T-2FFG901I of the fpga chip.
It should be noted that by above-mentioned improvement, when being illustrated in figure 5 PC host computer and emitting signal to digital RF system
Functional block diagram, when transmitting, control instruction is sent to digital processing element, i.e. fpga chip by PC host computer, then FPGA core
Piece generates corresponding control instruction, and it is converted to optical signal by SFP optical module, then believe light by Wavelength division multiplexing module
Number synthesis fiber-optic signal all the way, is transmitted to digital RF system.
It is illustrated in figure 4 functional block diagram when PC machine receives the signal of digital RF system transmitting, when reception, wavelength-division multiplex
The combining optical signal that digital RF system is sent is respectively the optical signal of multichannel different wave length by module, is sent into SFP optical module and is turned
It is changed to electric signal, fpga chip carries out corresponding down coversion, filtering, extraction etc. after receiving the electric signal that SFP optical module transmits
The control signal parsed is transmitted to digital RF system, while being uploaded to PC host computer by digital processing.
The fpga chip uses Xilinx company model for the programmable logic controller (PLC) of XC7K355T-2FFG901I,
Above-mentioned function can be achieved by compiling.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 3:
The present embodiment advanced optimizes on the basis of the above embodiments, as Figure 2-3, the Wavelength division multiplexing module
Model SPEC-MCWDM-000X-A.
It should be noted that by above-mentioned improvement, the Wavelength division multiplexing module (WDM) be by a series of carrying informations but
The different optical signal synthesis of wavelength is a branch of, transmits along simple optical fiber；The optical signal of each different wave length is separated in receiving end
Instrument.The Wavelength division multiplexing module that the present embodiment uses uses the integrated chip of model SPEC-MCWDM-000X-A, this is integrated
Chip can transmit multiple signals on an optical fiber simultaneously, all be transmitted by the light of specific wavelength per signal all the way, here it is
One wavelength channel.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 4:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figs. 1-5, the Wavelength division multiplexing module
There are two, each Wavelength division multiplexing module is connect by optical fiber with digital RF system；Each Wavelength division multiplexing module has 9 roads point
Channel is solved, and every road decomposition channels are connect with SFP optical module；The quantity of the SFP optical module is multiple, Wavelength division multiplexing module
Be correspondingly connected with a SFP optical module per decomposition channels all the way, each SFP optical module with the GTX of fpga chip
Interface connection；The model TLZ850M10GQ of the SFP optical module.
It should be noted that by above-mentioned improvement, as shown in Fig. 2, the present embodiment uses two Wavelength division multiplexing modules, on PC
When receiving signal, the combining optical signal that digital RF system is sent by optical fiber is decomposed into position machine by each Wavelength division multiplexing module
The optical signal of 9 road different wave lengths is connected respectively a SFP optical module per photo-signal channel all the way, and SFP optical module believes light
Number electric signal transmission is converted into fpga chip, fpga chip carries out corresponding down coversion, filtering, extraction etc. after receiving signal
The control signal parsed is transmitted to digital RF system, while information is uploaded to PC host computer by digital processing.
PC host computer is sent to fpga chip when transmitting signals, by control instruction, and fpga chip selects transmission channel control
Then system, modulation system pass through fpga chip including carry out MSK, BPSK, ASK modulation to signals such as TR, AM, ASK, PSK
GTX interface send modulated signal to SFP optical module, SFP optical module converts a signal into optical signal, then passes through wavelength-division
Multiplexing module generates combining fiber-optic signal, is transmitted to digital RF system.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 5:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1-3, further include respectively with FPGA
MAX3232 transceiver, the 3 pieces of MAX3490 transceivers of chip connection, the MAX3232 transceiver are connect with PC host computer, and 3 pieces
The MAX3490 transceiver is connect with digital RF system respectively.
It should be noted that being separately connected one piece of MAX3232 between fpga chip and PC host computer by above-mentioned improvement
Transceiver, MAX3232 transceiver are connect by RS232 serial communication with PC host computer；MAX3490 transceiver is gone here and there by RS422
Port communications are connect with digital RF system.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 6:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figs. 1-5, further include respectively with number
Power meter, the frequency spectrograph of radio frequency system connection.
It should be noted that by above-mentioned improvement, the radiofrequency signal performance parameter of digital RF system, by power meter, frequency
The instrument and equipments such as spectrometer are measured, and the present embodiment is not defined the instrument for detecting digital radio frequency system.The power meter
Using the instrument of model CP-240, frequency spectrograph uses the instrument of model R3131A.
The power is calculated as the instrument of the electrical power of measurement digital RF system, high frequency electrical signal can be turned by energy
It is changed to the electric signal that can directly detect.The frequency spectrograph is the instrument for measuring electric signal spectrum structure in digital RF system,
For the measurement of the signal parameters such as the model distortion factor, percentage modulation spectral purity, frequency stability and crosstalk, and the model
Digital circuit and microprocessor are used inside frequency spectrograph, and there is storage and calculation function.Above-mentioned power meter and frequency spectrograph are existing
Technology, therefore the present embodiment no longer repeats it.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
Embodiment 7:
The present embodiment advanced optimizes on the basis of the above embodiments, as shown in Figure 1-3, further include clock source list
Member, the clock source unit are connect with fpga chip and digital radio frequency system respectively；It further include being connect respectively with fpga chip
Temperature sensor, FLASH chip, reset chip；The model DS18B20 of the temperature sensor；The type of the FLASH chip
Number be M25P128；The model TCM809 of the reset chip.
It should be noted that the operating temperature of the fpga chip is -40 DEG C ~ 100 DEG C, the temperature by above-mentioned improvement
Sensor is used to detect the operating temperature of this test macro, and FLASH chip is fpga chip external memory, and reset chip is
The basic peripheral circuit of fpga chip.
The other parts of the present embodiment are same as the previously described embodiments, and so it will not be repeated.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the protection scope of the utility model.
Claims (10)
1. a kind of digital RF test macro, is connected between digital RF system and PC host computer, it is characterised in that: including number
Word processing unit, SFP optical module, Wavelength division multiplexing module, power supply unit, the PC host computer, digital processing element, SFP optical mode
Block, Wavelength division multiplexing module, digital RF system are sequentially connected, and the digital processing element is connect with digital RF system, described
Power supply unit is connect with digital processing element, SFP optical module, Wavelength division multiplexing module respectively.
2. a kind of digital RF test macro according to claim 1, it is characterised in that: the digital processing element uses
Fpga chip, the model XC7K355T-2FFG901I of the fpga chip.
3. a kind of digital RF test macro according to claim 2, it is characterised in that: the type of the Wavelength division multiplexing module
Number be SPEC-MCWDM-000X-A.
4. a kind of digital RF test macro according to claim 3, it is characterised in that: the Wavelength division multiplexing module has two
A, each Wavelength division multiplexing module is connect by optical fiber with digital RF system；Each Wavelength division multiplexing module has the decomposition of nine tunnels
Channel, and every road decomposition channels are connect with SFP optical module.
5. a kind of digital RF test macro according to claim 4, it is characterised in that: the quantity of the SFP optical module
To be multiple, Wavelength division multiplexing module is correspondingly connected with a SFP optical module per decomposition channels all the way, each SFP optical mode
Block is connect with the GTX interface of fpga chip.
6. a kind of digital RF test macro according to claim 5, it is characterised in that: the model of the SFP optical module
For TLZ850M10GQ.
7. according to a kind of described in any item digital RF test macros of claim 2-6, it is characterised in that: further include respectively with
MAX3232 transceiver, the 3 pieces of MAX3490 transceivers of fpga chip connection, the MAX3232 transceiver are connect with PC host computer,
3 pieces of MAX3490 transceivers are connect with digital RF system respectively.
8. a kind of digital RF test macro according to claim 7, it is characterised in that: further include respectively with digital RF
Power meter, the frequency spectrograph of system connection.
9. a kind of digital RF test macro according to claim 8, it is characterised in that: further include clock source unit, institute
Clock source unit is stated to connect with fpga chip and digital radio frequency system respectively.
10. a kind of digital RF test macro according to claim 9, it is characterised in that: further include respectively with FPGA core
The temperature sensor of piece connection, FLASH chip, reset chip；The model DS18B20 of the temperature sensor；The FLASH
The model M25P128 of chip；The model TCM809 of the reset chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920390981.3U CN209692782U (en) | 2019-03-26 | 2019-03-26 | A kind of digital RF test macro |
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| CN201920390981.3U CN209692782U (en) | 2019-03-26 | 2019-03-26 | A kind of digital RF test macro |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792376A (en) * | 2023-02-09 | 2023-03-14 | 成都九洲迪飞科技有限责任公司 | Broadband spectrum monitoring system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792376A (en) * | 2023-02-09 | 2023-03-14 | 成都九洲迪飞科技有限责任公司 | Broadband spectrum monitoring system and method |
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