CN107181496A - High bandwidth software radio development platform - Google Patents
High bandwidth software radio development platform Download PDFInfo
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- CN107181496A CN107181496A CN201710444245.7A CN201710444245A CN107181496A CN 107181496 A CN107181496 A CN 107181496A CN 201710444245 A CN201710444245 A CN 201710444245A CN 107181496 A CN107181496 A CN 107181496A
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- 238000011161 development Methods 0.000 title claims abstract description 24
- 238000012545 processing Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000009514 concussion Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000012360 testing method Methods 0.000 description 20
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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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
- H04B1/0003—Software-defined radio [SDR] systems, i.e. systems wherein components typically implemented in hardware, e.g. filters or modulators/demodulators, are implented using software, e.g. by involving an AD or DA conversion stage such that at least part of the signal processing is performed in the digital domain
-
- 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
-
- 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
- H04B1/401—Circuits for selecting or indicating operating mode
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
Abstract
The present invention relates to electronic technology field, especially a kind of high bandwidth software radio development platform, including radio frequency unit, clock unit, main control unit, digital signal processing unit and power subsystem, radio frequency unit is connected with digital signal processing unit, main control unit is connected with digital signal processing unit, clock unit provides clock by being connected as whole platform with digital signal processing unit, and power subsystem provides efficient electric energy for each element in platform.The present invention is used as the master chip of system using FPGA, RF transceiver is coordinated to complete building for platform, software radio system is set to obtain maximum system processing power, more communication function is realized using software, the versatility and scalability of platform are provided, the number of element is reduced, energy consumption is reduced.
Description
Technical field
The present invention relates to electronic technology field, specific field is a kind of high bandwidth software radio development platform.
Background technology
The radio (SDR) of software definition is the radio broadcasting communication technology, its radio communication association based on software definition
Discuss rather than realized by hardwired.In other words, frequency band, air interface protocol and function can newly arrive liter by software download and more
Level, without changing hardware with complete.The problem of SDR is for building multi-mode, multifrequency and multipurpose radio communication equipment is provided with
The solution of effect and safety.
Software radio is using different programmable software approach to realize institute on an open common hardware platform
The wireless system needed.Preferable software radio should be it is a kind of all can software programming radio, whole programmable bags
Programmable radio-frequency range, channel access mode and Channel Modulation are included, basic thought is exactly by broadband A-D converter and digital-to-analogue change
Parallel operation is positioned as close to radio-frequency antenna.And traditional Software Radio platform framework, by chipsets such as discrete LNA, Mixer
Into radio-frequency receiving-transmitting chain, volume is big, and circuit is complicated, high energy consumption.
The content of the invention
It is an object of the invention to provide a kind of high bandwidth software radio development platform, to solve software in the prior art
The deficiency of radio development platform.
To achieve the above object, one aspect of the present invention provides a kind of high bandwidth software radio development platform, including radio frequency
Unit, clock unit, main control unit, digital signal processing unit and power subsystem, radio frequency unit and digital signal processing unit
Connection, main control unit is connected with digital signal processing unit, and clock unit with digital signal processing unit by being connected as entirely
Platform provides clock, and power subsystem provides efficient electric energy for each element in platform.
It is preferred that, the radio frequency unit includes RF transceiver, and the low-noise amplifier, numeral on radio frequency reception link decline
Subtract device and SAW filter is sequentially connected the cooperation RF transceiver, receiving port is connected with the low-noise amplifier；Penetrate
Directional coupler, gain amplifier and SAW filter on frequency transmitting chain are sequentially connected the cooperation RF transceiver, hair
Port is penetrated to be connected with the directional coupler.
It is preferred that, the RF transceiver is also connected by RF switch with observation port, and RF transceiver is also associated with
Receive outside local oscillator port and sniff port.
It is preferred that, the RF transceiver selects the state-of-the-art RF Transceiver AD937X family chips of ADI.
It is preferred that, the clock unit provides clock from AD9528 chips to whole platform.
It is preferred that, the external connection constant-temperature crystal oscillator and VCXO of the clock chip produce concussion electric current, send clock
Signal.
It is preferred that, the main control unit selects ARM9 chips, and the AD937X family chips and AD9528 chips pass through
The built-in Linux configuration run on ARM9.
It is preferred that, digital signal processing unit is using Artix-7FPGA chips of new generation Xilinx.
Compared with prior art, the beneficial effects of the invention are as follows：Using FPGA as the master chip of system, coordinate radio-frequency receiving-transmitting
Device completes building for platform, software radio system is obtained maximum system processing power, more using soft
There is provided the versatility of platform and scalability, the number of reduction element, reduction energy consumption to realize communication function for part.
Brief description of the drawings
Fig. 1 is the theory diagram of invention software radio development platform；
Fig. 2 implements illustration for clock chip AD9528 peripheral circuit；
Fig. 3 is that the peripheral circuit of ARM9 chips implements illustration；
Fig. 4 is the frame diagram of FPGA module；
Fig. 5 is the peripheral connection figure of fpga chip；
Fig. 6 is local frequency index test curve map；
Fig. 7 is that mirror image suppresses index test curve map；
Fig. 8 is gain flatness test curve figure；
Fig. 9 is phase noise test curve figure；
Figure 10 is Adjacent Channel Power Ratio test curve figure；
Figure 11 is error vector magnitude test curve figure；
Figure 12 is EDGE template test result figures.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme：High bandwidth software radio development platform, including radio frequency list
Member, clock unit, main control unit, digital signal processing unit and power subsystem, radio frequency unit connect with digital signal processing unit
Connect, main control unit is connected with digital signal processing unit, clock unit is whole flat by being connected as with digital signal processing unit
Platform provides clock, and power subsystem provides efficient electric energy for each element in platform.
Radio frequency unit includes RF transceiver, low-noise amplifier, digital pad on radio frequency reception (Rx) link and
SAW filter is sequentially connected cooperation RF transceiver, and receiving port is connected with low-noise amplifier；Radio-frequency transmissions (Tx) link
On directional coupler, gain amplifier and SAW filter be sequentially connected cooperation RF transceiver, emission port and orientation coupling
Clutch is connected, and observation port (ORX) is connected by RF switch with RF transceiver, and RF transceiver is also associated with receiving outside
Local oscillator port and sniff port.In the present embodiment, radio frequency reception link and radio-frequency transmissions link include two-way, observation port
Including two, and RF transceiver selects the state-of-the-art RF Transceiver AD937X family chips of ADI, whole radio frequency list
Integrated level and flexible high performance feature of the member with superelevation, the chip are supported to receive 100MHz, transmitting 250MHz, feedback
250MHz bandwidth and 300MHz to 6GHz radio frequency reception tranmitting frequency scope.
In the present embodiment, clock unit provides clock from AD9528 to whole platform, and the physical circuit of the present embodiment is such as
Shown in Fig. 2, distal fiber clock recovery is supported, is easy to the nearly distal end of communication system synchronous.The external connection constant temperature of clock chip
Crystal oscillator and VCXO, produce concussion electric current, send clock signal.
Main control unit selects ARM9 chips, and the physical circuit of the present embodiment is as shown in figure 3, AD937X chips and AD9528 cores
Piece is configured by the built-in Linux run on ARM9, and platform of the user by serial ports with the application on host computer is carried out
Parameter setting.
Digital signal processing unit using Xilinx a new generation Artix-7FPGA chips, with abundant DSP with
Logic resources, while compatibility 7A100T/7A200T, convenient use person is selected as the case may be, associated variable parameter
(the function selection of modules, the decay of Peripheral digital attenuator chip, AD937X family chip frequencies etc. in such as FPGA), can lead to
Serial ports is crossed to modify on host computer.As shown in figure 4, the frame diagram of the FPGA module of the present embodiment, as shown in figure 5, this reality
The peripheral connection figure of the fpga chip of example is applied, when receiving equivalent data rates, it is not necessary to above become module Up2, DATA
The data of crawl RX/TX/ORX certain depths may be selected in CAPTURE modules, are transferred to host computer by ARM, are easy to user straight
Connect MATLAB and carry out spectrum analysis.
Development platform to the application carries out following test：
1st, local frequency (LO) and mirror image suppress index
Test condition：Tone signal pattern, signal source input power is -14dBm, after the development platform of the application,
It is -5dBm to export to the power of frequency spectrograph, if shown in test result 3,4.
2nd, gain flatness：
Test condition：Tone signal pattern, signal source input power is -20dBm, after the development platform of the application,
Export to frequency spectrograph power be -11dBm, test result as shown in figure 5, in figure ordinate scale 1dB/dB
3rd, phase noise
Test condition：Tone signal pattern, signal source input power is -14dBm, after the development platform of the application,
It is -9dBm to export to the power of frequency spectrograph, and test result is as shown in Figure 6.
4th, Adjacent Channel Power Ratio
Test condition：WCDMA signal modes, signal source input power is -24dBm, after the development platform of the application,
It is -15dBm to export to the power of frequency spectrograph, and test result is as shown in Figure 7.
5th, error vector magnitude
Test condition：TDD-LET signal modes, 20MHz bandwidth, signal source input power is -24dBm, by the application
Development platform after, the power exported to frequency spectrograph is -15dBm, and test result is as shown in Figure 8.
6th, EDGE (Enhanced Data Rate for GSM Evolution, i.e. enhanced data rates for gsm evolution skill
Art) template：
Test condition：EDGE signal modes, signal source input power is -24dBm, after the development platform of the application,
It is -11dBm to export to the power of frequency spectrograph, and test result is as shown in Figure 9.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of high bandwidth software radio development platform, it is characterised in that：Including radio frequency unit, clock unit, main control unit,
Digital signal processing unit and power subsystem, radio frequency unit are connected with digital signal processing unit, main control unit and data signal
Processing unit is connected, and clock unit provides clock by being connected as whole platform with digital signal processing unit, and power subsystem is
Each element provides efficient electric energy in platform.
2. high bandwidth software radio development platform according to claim 1, it is characterised in that：The radio frequency unit includes
Low-noise amplifier, digital pad and SAW filter on RF transceiver, radio frequency reception link are sequentially connected cooperation institute
RF transceiver is stated, receiving port is connected with the low-noise amplifier；Directional coupler, gain on radio-frequency transmissions link are put
Big device and SAW filter are sequentially connected the cooperation RF transceiver, and emission port is connected with the directional coupler.
3. high bandwidth software radio development platform according to claim 2, it is characterised in that：The RF transceiver also leads to
Cross RF switch to be connected with observation port, RF transceiver is also associated with receiving outside local oscillator port and sniff port.
4. the high bandwidth software radio development platform according to Claims 2 or 3, it is characterised in that：The RF transceiver
From the state-of-the-art RF Transceiver AD937X family chips of ADI.
5. high bandwidth software radio development platform according to claim 4, it is characterised in that：The clock unit is selected
AD9528 chips provide clock to whole platform.
6. high bandwidth software radio development platform according to claim 5, it is characterised in that：The outside of the clock chip
Constant-temperature crystal oscillator and VCXO are connected, concussion electric current is produced, sends clock signal.
7. high bandwidth software radio development platform according to claim 5, it is characterised in that：The main control unit is selected
ARM9 chips, the AD937X family chips and AD9528 chips are configured by the built-in Linux run on ARM9.
8. high bandwidth software radio development platform according to claim 1, it is characterised in that：Digital signal processing unit is adopted
With the Artix-7FPGA chips of Xilinx a new generations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444245.7A CN107181496A (en) | 2017-06-13 | 2017-06-13 | High bandwidth software radio development platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710444245.7A CN107181496A (en) | 2017-06-13 | 2017-06-13 | High bandwidth software radio development platform |
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| Publication Number | Publication Date |
|---|---|
| CN107181496A true CN107181496A (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710444245.7A Pending CN107181496A (en) | 2017-06-13 | 2017-06-13 | High bandwidth software radio development platform |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107563098A (en) * | 2017-09-28 | 2018-01-09 | 国营芜湖机械厂 | A kind of aircraft station software radio demo platform |
| CN117353758A (en) * | 2023-11-20 | 2024-01-05 | 中国科学院国家空间科学中心 | High-performance SDR platform based on domestic ware component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897281A (en) * | 2016-05-06 | 2016-08-24 | 厦门市合佳兴电子有限公司 | Software-defined radio platform based on radio-frequency agile transceiver |
-
2017
- 2017-06-13 CN CN201710444245.7A patent/CN107181496A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105897281A (en) * | 2016-05-06 | 2016-08-24 | 厦门市合佳兴电子有限公司 | Software-defined radio platform based on radio-frequency agile transceiver |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107563098A (en) * | 2017-09-28 | 2018-01-09 | 国营芜湖机械厂 | A kind of aircraft station software radio demo platform |
| CN107563098B (en) * | 2017-09-28 | 2023-12-15 | 国营芜湖机械厂 | Radio demonstration platform for aircraft radio station software |
| CN117353758A (en) * | 2023-11-20 | 2024-01-05 | 中国科学院国家空间科学中心 | High-performance SDR platform based on domestic ware component |
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Application publication date: 20170919 |
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| RJ01 | Rejection of invention patent application after publication |