CN110061748A - A kind of multiplexing of transmission method of more radiofrequency signals - Google Patents
A kind of multiplexing of transmission method of more radiofrequency signals Download PDFInfo
- Publication number
- CN110061748A CN110061748A CN201910326546.9A CN201910326546A CN110061748A CN 110061748 A CN110061748 A CN 110061748A CN 201910326546 A CN201910326546 A CN 201910326546A CN 110061748 A CN110061748 A CN 110061748A
- Authority
- CN
- China
- Prior art keywords
- radio
- radiofrequency signals
- frequency
- frequency cable
- multiplexing
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- 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
- H04B1/005—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 adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges
Abstract
The present invention relates to a kind of multiplexing of transmission methods of more radiofrequency signals, a variety of radiofrequency signals are synthesized by combiner, then by a radio-frequency cable simultaneous transmission, finally carry out frequency-selecting output using composite signal of the multiplexer to synthesis.It is effectively reduced the quantity of antenna array radio-frequency cable, 1/n when required radio-frequency cable quantity is only former design, and improves the reliability and maintainability of system；Solve the problems, such as small size and the arrangement of big quantity radio-frequency cable, installation；Effectively reduce cost.
Description
Technical field
It the invention belongs to microwave technical field, applies in the engineering design of Digital Array Radar antenna array, passes through conjunction
Road device, single radio-frequency cable and multiplexer realize frequency synthesizer to multiple radio signal transmissions between transmitting-receiving submatrix.
Background technique
1) Digital Array Radar
Digital Array Radar generates radar signal and wave beam control combines together, receives and transmitting is all made of digital beam
Formation technology.The basic principle is that using the high-precision width of DDS or D/A technology, phase control ability instead of traditional phased array thunder
The microwave numerical-control attenuator and digital phase shifter reached, can accurately control the phase in each channel or submatrix output signal, amplitude,
Frequency and waveform etc., to realize beam scanning.
2) radio signal transmission
Radio signal transmission be in antenna array function division at the major function of network.Traditional radio signal transmission be by
Each radiofrequency signal of frequency synthesizer is each by different power splitter and cable transmission to digital transmitting and receiving submatrix.Fig. 1 institute
It is shown as the functional block diagram of conventional radio frequency signal transmission.
For Digital Array Radar, usually have hundreds of thousands of a channels, traditional radio signal transmission technology have compared with
Big limitation.Firstly, there are many signal of submatrix interconnection, a large amount of radio-frequency cable is needed to be attached, equipment amount is big, is unfavorable for
Maintenance；Secondly, modern radar volume requirement is smaller and smaller, photoelectricity is can be used in the radio-frequency cable arrangement of big quantity and difficult to install
Conversion carries out radio signal transmission by optical fiber and solves the problems, such as this, but its is at high price；Finally, the radio-frequency cable of big quantity makes thunder
Up to higher cost, fibre optic transmission equipment price is higher, is unable to satisfy the requirement of modern radar low cost.
Summary of the invention
Technical problems to be solved
In order to avoid the shortcomings of the prior art, the present invention proposes a kind of multiplexing of transmission method of more radiofrequency signals.
Technical solution
A kind of multiplexing of transmission method of more radiofrequency signals, it is characterised in that close a variety of radiofrequency signals by combiner
At, then by a radio-frequency cable simultaneous transmission, frequency-selecting output finally is carried out using composite signal of the multiplexer to synthesis.
Beneficial effect
A kind of multiplexing of transmission method of more radiofrequency signals proposed by the present invention, using the multiplexing of transmission method of radiofrequency signal,
It is effectively reduced the quantity of antenna array radio-frequency cable, 1/n when required radio-frequency cable quantity is only former design, and is improved
The reliability and maintainability of system；Solve the problems, such as small size and the arrangement of big quantity radio-frequency cable, installation；It effectively reduces
Cost.
Detailed description of the invention
Fig. 1 conventional radio frequency Principle of Signal Transmission block diagram
Fig. 2 technical method schematic diagram
The multiplexing of transmission composition block diagram of the more radiofrequency signals of Fig. 3
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
For existing issue, conventional radio frequency signal transmission form is improved in circuit design, as shown in Figure 2.This
Method is synthesized a variety of radiofrequency signals using combiner, and You Yigen radio-frequency cable simultaneous transmission reuses multiplexer pairing
At composite signal carry out frequency-selecting output.
Below by taking certain Digital Array Radar antenna array as an example, the applicability of radiofrequency signal multiplexing of transmission method is verified.
For entire antenna array, need by frequency synthesizer generate 3 kinds of radiofrequency signals (DDS clock, sampling clock,
Local oscillation signal) it is transmitted to 256 digital transmitting and receiving submatrixs.Firstly, crystal oscillation signal produces respectively by frequency multiplier in frequency synthesizer
Raw DDS clock, sampling clock, local oscillation signal, this 3 kinds of radiofrequency signals synthesize composite signal by combiner；Again by a radio frequency
Cable is by compound signal transmission to digital transmitting and receiving submatrix；Finally, using multiplexer to the compound of synthesis in digital transmitting and receiving submatrix
Signal carries out frequency-selecting, exports DDS clock, sampling clock, local oscillation signal respectively.
Concrete composition block diagram is as shown in Figure 3.
This method directly transmits a variety of radiofrequency signals using a radio-frequency cable, enormously simplifies radar function subnetting
Network is effectively reduced the quantity of antenna array radio-frequency cable, reduces 2/3, and this method compared to conventional method number of cables
It is with good expansibility, the radiofrequency signal type of transmission is more, benefits bigger.
Claims (1)
1. a kind of multiplexing of transmission method of more radiofrequency signals, it is characterised in that close a variety of radiofrequency signals by combiner
At, then by a radio-frequency cable simultaneous transmission, frequency-selecting output finally is carried out using composite signal of the multiplexer to synthesis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326546.9A CN110061748A (en) | 2019-04-23 | 2019-04-23 | A kind of multiplexing of transmission method of more radiofrequency signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326546.9A CN110061748A (en) | 2019-04-23 | 2019-04-23 | A kind of multiplexing of transmission method of more radiofrequency signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110061748A true CN110061748A (en) | 2019-07-26 |
Family
ID=67320203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326546.9A Pending CN110061748A (en) | 2019-04-23 | 2019-04-23 | A kind of multiplexing of transmission method of more radiofrequency signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110061748A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927564Y (en) * | 2006-07-18 | 2007-07-25 | 华为技术有限公司 | Receiving front-end shunting system for base station |
| CN201467128U (en) * | 2009-08-12 | 2010-05-12 | 中国电子科技集团公司第五十四研究所 | Self-adapting frequency selective communication device based on multi-channel frequency multiplexing |
| CN101969331A (en) * | 2010-05-27 | 2011-02-09 | 福建京奥通信技术有限公司 | Digital frequency selecting method for solving resource consumption |
| CN103675753A (en) * | 2013-11-27 | 2014-03-26 | 北京邮电大学 | Signal processing method and system for indoor positioning |
| CN105553494A (en) * | 2016-01-18 | 2016-05-04 | 广州慧睿思通信息科技有限公司 | Radio frequency front-end frequency selection circuit and signal receiving method thereof |
-
2019
- 2019-04-23 CN CN201910326546.9A patent/CN110061748A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2927564Y (en) * | 2006-07-18 | 2007-07-25 | 华为技术有限公司 | Receiving front-end shunting system for base station |
| CN201467128U (en) * | 2009-08-12 | 2010-05-12 | 中国电子科技集团公司第五十四研究所 | Self-adapting frequency selective communication device based on multi-channel frequency multiplexing |
| CN101969331A (en) * | 2010-05-27 | 2011-02-09 | 福建京奥通信技术有限公司 | Digital frequency selecting method for solving resource consumption |
| CN103675753A (en) * | 2013-11-27 | 2014-03-26 | 北京邮电大学 | Signal processing method and system for indoor positioning |
| CN105553494A (en) * | 2016-01-18 | 2016-05-04 | 广州慧睿思通信息科技有限公司 | Radio frequency front-end frequency selection circuit and signal receiving method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109818681B (en) | MIMO radar detection method and device based on double optical frequency combs and difference frequency multiplexing | |
| CN109639403A (en) | The method of synchronous transfer digital array antenna base band excited data | |
| CN108089179B (en) | Ultra-wideband radar system and method for realizing single-channel multi-frequency-point simultaneous transceiving | |
| CN102955155B (en) | Distributed active phased array radar and beam forming method thereof | |
| CN108535699B (en) | Microwave photon digital beam forming method and device and broadband digital array radar | |
| EP2544301B1 (en) | Array antenna device | |
| US4166212A (en) | Recirculating optical delay line | |
| CN102025422B (en) | Method and system for generating Ka band multi-path millimeter wave signals | |
| CN104330801A (en) | Active phased array weather radar system based on full-digital array | |
| JP6537624B2 (en) | Phased array antenna | |
| CN109031214A (en) | DDS realizes the receive-transmit system implementation method of digital phase shift and calibration as local oscillator | |
| CN109387833B (en) | MIMO radar detection method and device based on microwave photon orthogonal difference frequency multiplexing | |
| CN105510888A (en) | Radar signal simulation method based on digital synthesis, and simulator | |
| CN108303689A (en) | A kind of device of light-operated radar array dynamic reconfigurable and difference beam | |
| CN110068800A (en) | Millimeter wave Multi-channel multifunctional SOC chip | |
| CN218412928U (en) | Millimeter wave receiving and transmitting front end of improved active human body security inspection imaging system | |
| CN104917556A (en) | Synchronous multi-beam signal generation method based on ultrahigh-speed DAC | |
| CN111142089B (en) | OBFN and PADC function integrated broadband radar signal receiving device and method | |
| JP5408219B2 (en) | Communication device and radar device | |
| CN107615585A (en) | A kind of phased array chip, phased array beam scan method and device | |
| CN113848530A (en) | Radar system | |
| CN110061748A (en) | A kind of multiplexing of transmission method of more radiofrequency signals | |
| CN113484828A (en) | Cascade extended millimeter wave sensor chip | |
| CN106443591B (en) | A kind of multi-functional submatrix beam-forming network of phased-array radar | |
| WO2017020968A1 (en) | Network node and method for photonic beamforming |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190726 |