CN207283531U - A kind of ultra-broadband digital receiver - Google Patents
A kind of ultra-broadband digital receiver Download PDFInfo
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- CN207283531U CN207283531U CN201721314611.9U CN201721314611U CN207283531U CN 207283531 U CN207283531 U CN 207283531U CN 201721314611 U CN201721314611 U CN 201721314611U CN 207283531 U CN207283531 U CN 207283531U
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Abstract
The utility model discloses a kind of ultra-broadband digital receiver, including band antenna, RF preselector, radio frequency agile transceiver, central processing unit, display and ethernet communication module；The input terminal of the RF preselector is connected with band antenna, the output terminal of RF preselector is connected with radio frequency agile transceiver, the output terminal of the radio-frequency receiving-transmitting agile device is connected with central processing unit, central processing unit is also connected with display and ethernet communication module respectively, and the ethernet communication module is connected by Ethernet with exterior host computer.The utility model provides a kind of ultra-broadband digital receiver, has the advantages that signal receives wide dynamic range, high sensitivity, and easy to which signal is shown and watched.
Description
Technical field
Spectral Receiver is the utility model is related to, more particularly to a kind of ultra-broadband digital receiver.
Background technology
As developing for science and technology is continuous progressive with the social communication technology, electromagnetic wave has been widely used for social life
Every field, under the application scenarios of some electromagnetic waves, generally requires to be monitored electromagnetic wave signal, as radio direction finding is supervised
Survey etc., this just needs to use Spectral Receiver.
But just at present, there are the relatively narrow, poor sensitivity of frequency bandwidth load, dynamic model for traditional Spectral Receiver
Enclose it is relatively narrow, cannot intuitively show, the shortcomings of volume is big, not readily portable；In today that electromagnetic spectrum technology is maked rapid progress, tradition
Spectral Receiver be difficult to meet higher and higher electromagnetic wave signal detection requirement.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of ultra-broadband digital receiver, has
Signal receives the advantages of wide dynamic range, high sensitivity, and easy to which signal is shown and watched.
The purpose of this utility model is achieved through the following technical solutions：A kind of ultra-broadband digital receiver, including
Band antenna, RF preselector, radio frequency agile transceiver, central processing unit, display and ethernet communication module；The radio frequency
The input terminal of preselector is connected with band antenna, and the output terminal of RF preselector is connected with radio frequency agile transceiver, the radio frequency
The output terminal of transmitting-receiving agile device is connected with central processing unit, and central processing unit also connects with display and ethernet communication module respectively
Connect, the ethernet communication module is connected by Ethernet with exterior host computer.
The band antenna include frequency be 15MHz~3600MHz input antenna one and frequency be 3600MHz~
The input antenna two of 6000MHz.The RF preselector includes the first low-noise amplifier and the second low-noise amplifier；It is described
The input terminal rate of connections of first low-noise amplifier be 15MHz~3600MHz input antenna one, the first low-noise amplifier
Output terminal be connected with the first RF switch, the output terminal of the first RF switch is opened with the second RF switch and the 3rd radio frequency respectively
Connection connects, and the output terminal of second RF switch passes through 70-170MHz, 170-450MHz, 450-1040MHz, 1040- respectively
The different frequency range wave filter of 2200MHz, 2200-3600MHz are connected to the 4th RF switch；The output of 3rd RF switch
End is connected to the 5th RF switch by the different frequency range wave filter of 15-30MHz, 30-50MHz, 50-70MHz respectively, and the 5th penetrates
The output terminal of frequency switch and the first input end of frequency mixer connect, the lock of the second input terminal connection 180-250 MHz of frequency mixer
Phase ring output terminal, 180-250 MHz phaselocked loop input terminal connection 40MHZ reference clock, the output terminal of the frequency mixer with
4th RF switch connects；The input terminal rate of connections of second low-noise amplifier is the input of 3600MHz~6000MHz
Antenna two, the output terminal of the second low-noise amplifier are connected by the wave filter of 3600-6000 MHz with the 4th RF switch；The
The output terminal of four RF switches passes sequentially through the 6th RF switch, attenuator and the 3rd low-noise amplifier and radio frequency agile is received and dispatched
Device connects.
Preferably, the ultra-broadband digital receiver further includes audio codec and audio playing apparatus, the audio
The input terminal of codec is connected with central processing unit, and the output terminal of audio codec is connected with audio playing apparatus.It is described
Audio playing apparatus is earphone or loudspeaker.
Preferably, the ultra-broadband digital receiver further includes TF card, FLASH memory and SDRAM memory, the TF
Card, FLASH memory and SDRAM memory are connected with central processing unit.
Preferably, the radio frequency agile transceiver includes AD9361 chips, and the central processing unit includes XC7Z020 cores
Piece；The audio decoder includes ADAU1761 chips, and the display uses 7 cun of TFT_LCD touch-screens.
The beneficial effects of the utility model are：The utility model can be to the letter of 15 ~ 6000 MHZ by RF preselector
Number received, be transmitted further to radio frequency agile transceiver and changed, had and receive the wide advantage of dynamic range of signals；Radio frequency is prompt
Become transceiver and use AD9361 chips, be done directly conversion of the radio-frequency channel to digital I/Q signal, central processing unit uses
XC7Z020 integrated chips FPGA and arm processor, realize quick obtaining and the processing of I/Q data based on FPGA and ARM technologies,
High sensitivity；Simultaneously because radio frequency agile transceiver and central processing unit use the chip of high integration, substantially reduce whole
The volume of ultra-broadband digital receiver；Display, audio codec and voice playing device are connected with central processing unit,
Can on ultra-broadband digital receiver directly carry out signal show or audio play, be convenient to the observation to signal.
Brief description of the drawings
Fig. 1 is the functional block diagram of the utility model；
Fig. 2 is the functional block diagram of RF preselector.
Embodiment
The technical solution of the utility model, but the scope of protection of the utility model are described in further detail below in conjunction with the accompanying drawings
It is not limited to as described below.
As shown in Figure 1, a kind of ultra-broadband digital receiver, including the transmitting-receiving of band antenna, RF preselector, radio frequency agile
Device, central processing unit, display and ethernet communication module；The input terminal of the RF preselector is connected with band antenna, is penetrated
The output terminal of frequency preselector is connected with radio frequency agile transceiver, and output terminal and the central processing unit of the radio-frequency receiving-transmitting agile device connect
Connect, central processing unit is also connected with display and ethernet communication module respectively, and the ethernet communication module passes through Ethernet
It is connected with exterior host computer.
As shown in Fig. 2, the band antenna includes the input antenna one that frequency is 15MHz~3600MHz and frequency is
The input antenna two of 3600MHz~6000MHz.The RF preselector includes the first low-noise amplifier and the second low noise is put
Big device；The input terminal rate of connections of first low-noise amplifier is the input antenna one of 15MHz~3600MHz, and first is low
The output terminal of noise amplifier is connected with the first RF switch, the output terminal of the first RF switch respectively with the second RF switch and
3rd RF switch connects, and the output terminal of second RF switch passes through 70-170MHz, 170-450MHz, 450- respectively
The different frequency range wave filter of 1040MHz, 1040-2200MHz, 2200-3600MHz are connected to the 4th RF switch；Described 3rd
The output terminal of RF switch is connected to the 5th by the different frequency range wave filter of 15-30MHz, 30-50MHz, 50-70MHz respectively
RF switch, the output terminal of the 5th RF switch and the first input end of frequency mixer connect, the second input terminal connection of frequency mixer
The phaselocked loop output terminal of 180-250 MHz, the reference clock of the phaselocked loop input terminal connection 40MHZ of 180-250 MHz；Frequency mixer
Input signal is mixed, obtains the mixed frequency signal of 160 ~ 170MHZ, the output terminal of the frequency mixer and the 4th RF switch
Connection；The input terminal rate of connections of second low-noise amplifier be 3600MHz~6000MHz input antenna two, second
The output terminal of low-noise amplifier is connected by the wave filter of 3600-6000 MHz with the 4th RF switch；4th RF switch
Output terminal pass sequentially through the 6th RF switch, attenuator and the 3rd low-noise amplifier and be connected with radio frequency agile transceiver.
In embodiments herein, the ultra-broadband digital receiver further includes audio codec and audio plays dress
Put, the input terminal of the audio codec is connected with central processing unit, and the output terminal of audio codec is played with audio to be filled
Put connection.The audio playing apparatus is earphone or loudspeaker.
In embodiments herein, the ultra-broadband digital receiver further includes TF card, FLASH memory and SDRAM
Memory, the TF card, FLASH memory and SDRAM memory are connected with central processing unit.
In embodiments herein, the radio frequency agile transceiver includes AD9361 chips, the central processing unit bag
Include XC7Z020 chips；The audio decoder includes ADAU1761 chips, and the display is touched using 7 cun of TFT_LCD
Touch screen.
In the utility model, RF preselector can support the signal of 15 ~ 6000MHZ of dynamic range to input, specifically,
Signal is according to frequency by input antenna one（15MHz~3600MHz）, input antenna two（3600MHz~6000MHz）Two-way is defeated
Enter, RF switch is switched according to scan frequency when equipment is run, form a corresponding path, signal is undergone on every passage
Different processing, it is ensured that optimal signal is sent into back end signal processing unit；Preselector is effectively right using multiple-stage filtering at the same time
Interference signal outside band carries out strong suppression and harmonic wave removes, and ensures that the quality for receiving signal is accurate and reliability.Ultra wide band
Digital receiver uses rf chip AD9361, is done directly conversion of the radio-frequency channel to digital I/Q signal, realize 15~
The point frequency control of 6000 MHz frequency ranges and rapid frequency-sweeping, sweep speed can be with up to≤3G/s, central processor core XC7Z020
By realizing quick obtaining and the processing of I/Q data based on FPGA+ARM technologies, the data handled can pass through ether Netcom
News module uploads to host computer（PC machine）Shown and watched, can also be carried out based on local TFT_LCD liquid crystal displays
Display and viewing；Meanwhile host computer（PC machine）Remote control can be carried out to ultra-broadband digital receiver；It is based on and central processing
The audio codec of device connection, the application directly can be demodulated the audio signal of reception, and by speaker into
Row is local to be broadcast.
Claims (9)
- A kind of 1. ultra-broadband digital receiver, it is characterised in that：Including band antenna, RF preselector, radio frequency agile transceiver, Central processing unit, display and ethernet communication module；The input terminal of the RF preselector is connected with band antenna, and radio frequency is pre- The output terminal of device is selected to be connected with radio frequency agile transceiver, the output terminal of the radio-frequency receiving-transmitting agile device is connected with central processing unit, Central processing unit is also connected with display and ethernet communication module respectively, and the ethernet communication module is by Ethernet and outside The host computer connection in portion.
- A kind of 2. ultra-broadband digital receiver according to claim 1, it is characterised in that：The band antenna includes frequency The input antenna two that input antenna one and frequency for 15MHz~3600MHz are 3600MHz~6000MHz.
- A kind of 3. ultra-broadband digital receiver according to claim 2, it is characterised in that：The RF preselector includes the One low-noise amplifier and the second low-noise amplifier；The input terminal rate of connections of first low-noise amplifier is 15MHz The input antenna one of~3600MHz, the output terminal of the first low-noise amplifier are connected with the first RF switch, the first RF switch Output terminal be connected respectively with the second RF switch and the 3rd RF switch, the output terminal of second RF switch passes through respectively The different frequency range wave filter of 70-170MHz, 170-450MHz, 450-1040MHz, 1040-2200MHz, 2200-3600MHz connect It is connected to the 4th RF switch；The output terminal of 3rd RF switch passes through 15-30MHz, 30-50MHz, 50-70MHz respectively Different frequency range wave filter is connected to the 5th RF switch, and the output terminal of the 5th RF switch and the first input end of frequency mixer connect Connect, the phaselocked loop output terminal of the second input terminal connection 180-250 MHz of frequency mixer, the phaselocked loop input terminal of 180-250 MHz The reference clock of 40MHZ is connected, the output terminal of the frequency mixer is connected with the 4th RF switch；Second low-noise amplifier Input terminal rate of connections be 3600MHz~6000MHz input antenna two, the output terminal of the second low-noise amplifier passes through The wave filter of 3600-6000 MHz is connected with the 4th RF switch；The output terminal of 4th RF switch passes sequentially through the 6th radio frequency Switch, attenuator and the 3rd low-noise amplifier are connected with radio frequency agile transceiver.
- A kind of 4. ultra-broadband digital receiver according to claim 1, it is characterised in that：The ultra-broadband digital receiver Audio codec and audio playing apparatus are further included, the input terminal of the audio codec is connected with central processing unit, sound The output terminal of frequency codec is connected with audio playing apparatus.
- A kind of 5. ultra-broadband digital receiver according to claim 4, it is characterised in that：The audio playing apparatus is ear Machine or loudspeaker.
- A kind of 6. ultra-broadband digital receiver according to claim 1, it is characterised in that：The ultra-broadband digital receiver Further include TF card, FLASH memory and SDRAM memory, the TF card, FLASH memory and SDRAM memory with center Processor connects.
- A kind of 7. ultra-broadband digital receiver according to claim 1, it is characterised in that：The radio frequency agile transceiver bag Include AD9361 chips.
- A kind of 8. ultra-broadband digital receiver according to claim 1, it is characterised in that：The central processing unit includes XC7Z020 chips.
- A kind of 9. ultra-broadband digital receiver according to claim 4, it is characterised in that：The audio codec includes ADAU1761 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721314611.9U CN207283531U (en) | 2017-10-12 | 2017-10-12 | A kind of ultra-broadband digital receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721314611.9U CN207283531U (en) | 2017-10-12 | 2017-10-12 | A kind of ultra-broadband digital receiver |
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| Publication Number | Publication Date |
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| CN207283531U true CN207283531U (en) | 2018-04-27 |
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| CN201721314611.9U Active CN207283531U (en) | 2017-10-12 | 2017-10-12 | A kind of ultra-broadband digital receiver |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847855A (en) * | 2018-06-26 | 2018-11-20 | 成都九洲迪飞科技有限责任公司 | Miniature spectral sensor |
| CN109067422A (en) * | 2018-09-13 | 2018-12-21 | 深圳天之励诚科技有限公司 | A kind of tetra terminal realizing method |
| CN111751617A (en) * | 2020-05-27 | 2020-10-09 | 成都九洲迪飞科技有限责任公司 | Miniature frequency spectrum sensor |
| CN113126049A (en) * | 2021-06-17 | 2021-07-16 | 北京宏动科技有限公司 | Sensitivity measuring equipment and method applied to ultra-wideband sampling receiver |
| CN114499549A (en) * | 2020-11-09 | 2022-05-13 | Oppo广东移动通信有限公司 | Ultra-wideband communication system and electronic equipment |
-
2017
- 2017-10-12 CN CN201721314611.9U patent/CN207283531U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108847855A (en) * | 2018-06-26 | 2018-11-20 | 成都九洲迪飞科技有限责任公司 | Miniature spectral sensor |
| CN109067422A (en) * | 2018-09-13 | 2018-12-21 | 深圳天之励诚科技有限公司 | A kind of tetra terminal realizing method |
| CN111751617A (en) * | 2020-05-27 | 2020-10-09 | 成都九洲迪飞科技有限责任公司 | Miniature frequency spectrum sensor |
| CN114499549A (en) * | 2020-11-09 | 2022-05-13 | Oppo广东移动通信有限公司 | Ultra-wideband communication system and electronic equipment |
| CN113126049A (en) * | 2021-06-17 | 2021-07-16 | 北京宏动科技有限公司 | Sensitivity measuring equipment and method applied to ultra-wideband sampling receiver |
| CN113126049B (en) * | 2021-06-17 | 2021-09-28 | 北京宏动科技有限公司 | Sensitivity measuring equipment and method applied to ultra-wideband sampling receiver |
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