CN107835027A - A kind of radio communication instructional device based on PLD - Google Patents
A kind of radio communication instructional device based on PLD Download PDFInfo
- Publication number
- CN107835027A CN107835027A CN201711120025.5A CN201711120025A CN107835027A CN 107835027 A CN107835027 A CN 107835027A CN 201711120025 A CN201711120025 A CN 201711120025A CN 107835027 A CN107835027 A CN 107835027A
- Authority
- CN
- China
- Prior art keywords
- pld
- signal testing
- signal
- radio communication
- testing port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004891 communication Methods 0.000 title claims abstract description 64
- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 238000012360 testing method Methods 0.000 claims description 61
- 238000000034 method Methods 0.000 abstract description 8
- 238000004549 pulsed laser deposition Methods 0.000 description 25
- 238000005516 engineering process Methods 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- 230000003321 amplification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
-
- 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
- H04B1/0028—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 wherein the AD/DA conversion occurs at baseband stage
-
- 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
- H04B1/06—Receivers
- H04B1/16—Circuits
Abstract
The invention discloses a kind of radio communication instructional device based on PLD, the device includes radio communication sending module and wireless communication receiver module, radio communication sending module is using PLD as core, coordinate radio frequency transmission chip, power amplifier, microprocessor etc. forms circuit system, wireless communication receiver module is using PLD as core, coordinate radiofrequency receiving chip, low-noise amplifier, microprocessor etc. forms circuit system, by writing PLD program and microprocessor program, to make, radio communication is sent and receiving module possesses different functions, help to understand the implementation process of each step in wireless communication procedure.The present invention has filled up the blank of domestic this area, is advantageous to the culture of radio communication professional.
Description
Technical field
The present invention relates to teaching equipment technical field, radio communication instructional device is used in particularly a kind of teaching.
Background technology
In past 30 years, there occurs earth-shaking change for wireless communication field.Radio communication is behaved
Class provides any time, the communication service in any place, so as to break the limitation by fixed equipment communication.Radio communication
Technology has also quickly developed into 4G from 2G, and 5G technologies are also during gradual maturation.
Principle of Communication and mobile communication be colleges and universities face communicate Engineering Speciality development a communication teaching course, but more with
Theoretical, protocol architecture scheduling theory knowledge is core, the knowwhy of training student.Channel coding, intertexture, MIMO technology, OFDM
Technology, simultaneous techniques, channel estimation and equilibrium are the knowledges of communication speciality.But few related experiments are set in university
It is standby, help classmates to understand each indispensable module of wireless communication system in practice.To radio communication professional's in society
Demand is very big, but requires stronger professional technique and the ability of practice of starting.
Therefore, it is leading radio communication experiment porch from PLD, can allows communication speciality learner couple
Each baseband module of radio communication has good understanding, has certain understanding to the implementation method of upper and lower frequency conversion, to power amplification
There is a profound understanding for the influence of device performance and low-noise amplifier performance to wireless communication transmissions distance, during practice of starting
Deepen the understanding to communication system, improve professional ability.
The content of the invention
The purpose of the present invention is that the one kind that is insufficient and providing for being directed to existing wireless communications experiment porch is based on programmable patrol
The radio communication instructional device of device is collected, establishes the radio communication tutoring system using PLD as core, there is provided
The training in all directions realized from wireless communication baseband data processing to physical layer, fill up the radio communication experiment lacked in colleges and universities
Platform.
Realizing the concrete technical scheme of the object of the invention is：
A kind of radio communication instructional device based on PLD, feature are that the device includes：Radio communication sends mould
Block, wireless communication receiver module and PC, the wireless communication receiver module are connected by data wire with PC, the channel radio
Letter sending module is wirelessly connected with wireless communication receiver module；Wherein：
The radio communication sending module includes SD card, the first PLD, first microprocessor, radio frequency and sends core
Piece, power amplifier, first antenna, the first signal testing port and secondary signal test port, first FPGA
Device is connected with SD card and radio frequency transmission chip respectively, radio frequency transmission chip respectively with first microprocessor and the first signal testing
Port is connected, and the first signal testing port is connected with power amplifier, and power amplifier is connected with secondary signal test port, the
Binary signal test port is connected with first antenna；
The wireless communication receiver module includes the second PLD, the second microprocessor, radiofrequency receiving chip, low noise
Acoustic amplifier, the second antenna, the 3rd signal testing port and the 4th signal testing port, second PLD point
Be not connected with radiofrequency receiving chip and PC, radiofrequency receiving chip respectively with the second microprocessor and the 3rd signal testing port phase
Even, low-noise amplifier is connected with the 3rd signal testing port and the 4th signal testing port respectively, the 4th signal testing port
It is connected with the second antenna.
First PLD, the second PLD are FPGA, and it is loaded with channel encoder, handed over
Device, orthogonal frequency-division multiplex base band maker, channel equalizer, synchronizer, orthogonal frequency-division multiplex base band decoder, channel is knitted to decode
Device and deinterleaver.
First PLD is by channel encoder, interleaver, orthogonal frequency-division multiplex base band maker by SD card
In data be converted to and be adapted to the baseband signal transmitted in the channel, first microprocessor is used to configure radio frequency transmission chip, penetrates
Digital baseband signal is converted to analog radio-frequency signal by frequency transmission chip, and the first signal testing port is used to test radio frequency transmission core
The performance of piece, power amplifier are used to amplify RF signal power, and secondary signal test port is used for measured power amplifier
Can, first antenna is used to send signal, and the second antenna is used for reception signal, the 4th signal testing port and the 3rd signal testing end
Mouth is used to measure low-noise amplifier performance, and the second microprocessor is used to configure radiofrequency receiving chip, and radiofrequency receiving chip will connect
The radio frequency analog signal received is converted to baseband digital signal, and baseband digital signal is passed through synchronization by the second PLD
Device, channel equalizer, orthogonal frequency-division multiplex base band decoder, deinterleaver and channel decoder revert to data flow, and PC is used
In the data flow for showing the recovery of the second PLD.
Beneficial effects of the present invention
a）It can understand radio communication system from bottom by leading radio communication instructional device of hardware.
b）From the angle of radio communication, by from channel coding, receive synchronous, channel estimation and equalization angle come
The teaching of radio communication is carried out, helps scholar to understand the influence that wireless channel transmits to signal.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is radio communication sending module structural representation of the present invention；
Fig. 3 is wireless communication receiver modular structure schematic diagram of the present invention；
Fig. 4 is the workflow diagram of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples.
Refering to Fig. 1, the present invention includes：Radio communication sending module 1, wireless communication receiver module 2 and PC 3, the nothing
Line communication receipt module 2 is connected by data wire with PC 3, the radio communication sending module 1 and wireless communication receiver module 2
It is wireless to be connected.Radio communication sending module 1 encodes initial data, modulate after send, after wireless channel transmits by
Wireless communication receiver module 2 is received, and is recovered data after demodulated, decoding and is shown on PC 3, by what is recovered
Data are contrasted with the initial data sent.
Refering to Fig. 2, Fig. 2 is radio communication sending module structural representation of the present invention.Radio communication sending module 1 includes SD
Block the 4, first PLD 5, first microprocessor 6, radio frequency transmission chip 7, power amplifier 8, first antenna 9, the
One signal testing port 10 and secondary signal test port 11.First PLD 5 respectively with SD card 4 and radio frequency
Transmission chip 7 is connected, and radio frequency transmission chip 7 is connected with the signal testing port 10 of first microprocessor 6 and first respectively, the first letter
Number test port 10 is connected with power amplifier 8, and power amplifier 8 is connected with secondary signal test port 11, and secondary signal is surveyed
Examination port 11 is connected with first antenna 9.
First PLD 5 is read from SD card 4 needs the data that send, by channel encoder, interleaver,
Radio frequency transmission chip 7 is sent to after orthogonal frequency-division multiplex base band maker, digital baseband signal is modulated to by radio frequency transmission chip 7
Analog radio-frequency signal, and by the amplified signal power of power amplifier 8, be transmitted finally by first antenna 9, can be passed through
Radio frequency transmission chip 7 and the performance of power amplifier 8 are tested in one signal testing port 10 with secondary signal test port 11.This hair
The first bright PLD 5 is FPGA, and using Kintex-7 chips, first microprocessor 6 is using STM32F04 series
Chip, radio frequency transmission chip 7 use AD9371, and power amplifier 8 uses RF2192.
Refering to Fig. 3, Fig. 3 is wireless communication receiver modular structure schematic diagram of the present invention.Wireless communication receiver module 2 includes the
Two PLDs 12, the second microprocessor 13, radiofrequency receiving chip 14, low-noise amplifier 15, the second antenna 16,
Three signal testing ports 17 and the 4th signal testing port 18, second PLD 12 respectively with radio frequency reception core
Piece 14 and PC 3 are connected, and radiofrequency receiving chip 14 is connected with the second microprocessor 13 and the 3rd signal testing port 17 respectively, low
Noise amplifier 15 is connected with the 3rd signal testing port 17 and the 4th signal testing port 18 respectively, the 4th signal testing port
18 are connected with the second antenna 16.
Second antenna 16 is amplified after receiving signal by low-noise amplifier 15, will by radiofrequency receiving chip 14
Analog radio-frequency signal after amplification is converted to digital baseband signal, and the second PLD 12 passes through digital baseband signal
Synchronizer, channel equalizer, orthogonal frequency-division multiplex base band decoder, deinterleaver and channel decoder revert to data flow, and
Shown on PC 3.Influence of the wireless channel to radio signal can be observed by the 3rd signal testing port 17, can be led to
Cross the performance of the 3rd signal testing port 17 and the 4th signal testing port 18 test low-noise amplifier 15.The second of the present invention
PLD 12 is FPGA, and using Kintex-7 chips, the second microprocessor 13 uses STM32F04 family chips, penetrated
Frequency reception chip 14 uses AD9371, and low-noise amplifier 15 uses ADL5523.
Refering to Fig. 4, workflow of the invention is divided into：A, the parameter configuration stage；B, data transmission phase；C, data receiver
And the display stage.
ⅰ）The parameter configuration stage：First microprocessor 6 is to the working frequency of radio frequency transmission chip 7, bandwidth of operation, transmitting work(
The parameters such as rate are configured.Second microprocessor 13 is to the working frequency of radiofrequency receiving chip 14, bandwidth of operation, data bit width etc.
Parameter is configured.
ⅱ）Data transmission phase：First PLD 5 reads the data for needing to transmit from SD card 4, and first can
Programmed logic device 5 encoded to data, interweave and orthogonal multiplex modulation processes data into the base-band digital for being adapted to transmission
Signal, and radio frequency transmission chip 7 is sent the data to, baseband digital signal is converted to radio frequency analog and believed by radio frequency transmission chip 7
Number, and launched by the amplified signal power of power amplifier 8 eventually through first antenna 9.
ⅲ）Data receiver and display：Second antenna 16 is put receiving radio signal from air and be sent to low noise
Big device 15 is amplified, and the signal after amplification is converted to baseband digital signal by radiofrequency receiving chip 14, and can be compiled by second
Journey logical device 12 synchronizes, channel estimation and equilibrium, solution orthogonal multiplex, deinterleaving, decoding etc. operate, so as to recover number
According to and be sent to PC 3, and shown on PC 3.
Meanwhile student can carry out the emulation of sequential to the first PLD 5, the second PLD 12
And observation, different coding mode can be probed into reliability by programming the coded system changed in the first programmable logic device 5
Influence, test the performance of radio frequency transmission chip 7 using the first signal testing port 10, utilize the first signal testing port 10 and second
The performance of the measured power amplifier 8 of signal testing port 11, utilize the signal testing port of secondary signal test port 11 and the 4th
Influence of the 18 observation wireless channels to signal, low noise is observed using the 3rd signal testing port 17 and the 4th signal testing port 18
The performance of acoustic amplifier 15.
Embodiment
During experiment, PC 3 is connected by student with the second PLD 12, and display is passed through into channel radio on PC 3
Data in the SD card 4 that letter instructional device transmits, and the initial data in the data and SD card 4 is contrasted, calculate
The channel width and reliability of the wireless communication system.Student can connect the first signal testing port 10 and tester by cable
Device, the working condition of observation radio frequency transmission chip 7, is contrasted with theoretical value.Student can be simultaneously by cable by the first signal
Test port 10 and secondary signal test port 11 are connected to tester, observe input signal and the output of power amplifier 8
Signal, the working condition of power amplifier 8 is obtained, so as to derive theoretic transmission range.Student can while will by cable
The signal testing port 18 of secondary signal test port 11 and the 4th is connected to tester, while observes signal and the reception of transmission
The signal arrived, the influence that analysis wireless channel transmits to signal.Student can be simultaneously by cable by the 3rd signal testing port 17
Tester is connected to the 4th signal testing port 18, observes the performance of low-noise amplifier 15, compared with theoretical value,
Analysis.Student can be contrasted different by programming the channel coding method changed in the first PLD 5 on PC 3
Influence of the channel coding method to transmission reliability, the bit error rate.
Claims (2)
1. a kind of radio communication instructional device based on PLD, it is characterised in that the device includes radio communication
Sending module（1）, wireless communication receiver module（2）And PC（3）, the wireless communication receiver module（2）By data wire with
PC（3）It is connected, the radio communication sending module（1）With wireless communication receiver module（2）It is wireless to be connected；Wherein：
The radio communication sending module includes SD card（4）, the first PLD（5）, first microprocessor（6）, penetrate
Frequency transmission chip（7）, power amplifier（8）, first antenna（9）, the first signal testing port（10）And secondary signal test lead
Mouthful（11）, first PLD（5）Respectively with SD card（4）And radio frequency transmission chip（7）It is connected, radio frequency sends core
Piece（7）Respectively with first microprocessor（6）And the first signal testing port（10）It is connected, the first signal testing port（10）With work(
Rate amplifier（8）It is connected, power amplifier（8）With secondary signal test port（11）It is connected, secondary signal test port（11）
With first antenna（9）It is connected；
The wireless communication receiver module includes the second PLD（12）, the second microprocessor（13）, radio frequency reception
Chip（14）, low-noise amplifier（15）, the second antenna（16）, the 3rd signal testing port（17）And the 4th signal testing port
（18）, second PLD（12）Respectively with radiofrequency receiving chip（14）And PC（3）It is connected, radio frequency reception core
Piece（14）Respectively with the second microprocessor（13）And the 3rd signal testing port（17）It is connected, low-noise amplifier（15）Respectively with
3rd signal testing port（17）And the 4th signal testing port（18）It is connected, the 4th signal testing port（18）With the second antenna
（16）It is connected.
2. system according to claim 1, it is characterised in that first PLD（5）, it is second programmable
Logical device（12）For FPGA, it is loaded with channel encoder, interleaver, orthogonal frequency-division multiplex base band maker, channel equalization
Device, synchronizer, orthogonal frequency-division multiplex base band decoder, channel decoder and deinterleaver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120025.5A CN107835027A (en) | 2017-11-14 | 2017-11-14 | A kind of radio communication instructional device based on PLD |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711120025.5A CN107835027A (en) | 2017-11-14 | 2017-11-14 | A kind of radio communication instructional device based on PLD |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107835027A true CN107835027A (en) | 2018-03-23 |
Family
ID=61654303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711120025.5A Pending CN107835027A (en) | 2017-11-14 | 2017-11-14 | A kind of radio communication instructional device based on PLD |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107835027A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090323833A1 (en) * | 2006-08-02 | 2009-12-31 | Manoj Karayil Thekkoott Narayanan | Versatile platform for broadband wireless system design and prototyping using software defined radio methodology |
| CN202534239U (en) * | 2012-05-03 | 2012-11-14 | 河海大学常州校区 | Digital communication designed experimental platform |
| CN207884605U (en) * | 2017-11-14 | 2018-09-18 | 华东师范大学 | A kind of wireless communication instructional device based on programmable logic device |
-
2017
- 2017-11-14 CN CN201711120025.5A patent/CN107835027A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090323833A1 (en) * | 2006-08-02 | 2009-12-31 | Manoj Karayil Thekkoott Narayanan | Versatile platform for broadband wireless system design and prototyping using software defined radio methodology |
| CN202534239U (en) * | 2012-05-03 | 2012-11-14 | 河海大学常州校区 | Digital communication designed experimental platform |
| CN207884605U (en) * | 2017-11-14 | 2018-09-18 | 华东师范大学 | A kind of wireless communication instructional device based on programmable logic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200616394A (en) | Method and apparatus for transmitting signals, and method and apparatus for receiving the signals | |
| CN103338086B (en) | Testing system for radio frequency consistency of satellite mobile communication terminal and testing method of testing system | |
| EP2296293A3 (en) | Method and apparatus for transmitting downlink signal in a mimo wireless communication system | |
| PT2256953T (en) | Method and apparatus for utilizing channel state information in a wireless communication system | |
| WO2008120297A1 (en) | Method for data communication between radio control equipment and radio equipment, radio control equipment and radio equipment | |
| CA2551295A1 (en) | Method and apparatus to facilitate message transmission and reception using different transmission characteristics | |
| GB2429138A (en) | Apparatus and method for communicating using multiple channels | |
| ATE392056T1 (en) | METHOD FOR TRANSMITTING INFORMATION IN A MIMO RADIO COMMUNICATION SYSTEM AND RADIO COMMUNICATION SYSTEM | |
| RU2013102524A (en) | METHOD AND LAYOUT FOR SIGNALING PARAMETERS IN A WIRELESS NETWORK | |
| TW200618520A (en) | Method and apparatus for transmitting signals | |
| TW200633415A (en) | Wireless communication system, receiver, demodulation method used for the system and receiver, and program thereof | |
| WO2006070551A8 (en) | Wireless transmitter, wireless receiver and wireless communication system | |
| TW200713944A (en) | Method for transmitting/receiving signal having spread training symbol in mobile communication system | |
| CN102035606B (en) | Radio communication device, signal strength output method and radio communication system | |
| CN207884605U (en) | A kind of wireless communication instructional device based on programmable logic device | |
| WO2006086576A3 (en) | Communication system modulating/demodulating data using antenna patterns and associated methods | |
| ATE426277T1 (en) | RADIO COMMUNICATION SYSTEM, RADIO STATION AND METHOD FOR TRANSMITTING DATA | |
| RU2011120052A (en) | WIRELESS COMMUNICATION SYSTEM (OPTIONS) AND WIRELESS COMMUNICATION METHOD | |
| CN113472389B (en) | Low-delay configurable wireless rapid frequency hopping system based on FPGA | |
| CN107835027A (en) | A kind of radio communication instructional device based on PLD | |
| WO2007008036A3 (en) | Method for transmitting/receiving signal having spread training symbol in mobile communication system | |
| CN104410984B (en) | A kind of wireless access point radio frequency index testing system and test method | |
| US20090129503A1 (en) | Communication Device, Communication System, and Modulation Method | |
| CN107800470B (en) | Real-time monitoring system and method for satellite comprehensive test uplink remote control modulation signal | |
| US9241278B2 (en) | Measuring instrument and a measuring method for stationary testing of mobile-radio relay stations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180323 |
|
| WD01 | Invention patent application deemed withdrawn after publication |