CN109005015A - A kind of laser-microwave composite communication method improving the laser communication bit error rate - Google Patents
A kind of laser-microwave composite communication method improving the laser communication bit error rate Download PDFInfo
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- CN109005015A CN109005015A CN201710416364.1A CN201710416364A CN109005015A CN 109005015 A CN109005015 A CN 109005015A CN 201710416364 A CN201710416364 A CN 201710416364A CN 109005015 A CN109005015 A CN 109005015A
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- laser
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- microwave
- bit error
- laser communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1809—Selective-repeat protocols
-
- 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
- H04B1/74—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 for increasing reliability, e.g. using redundant or spare channels or apparatus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optical Communication System (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The present invention relates to a kind of laser-microwave composite communication methods for improving the laser communication bit error rate, belong to information technology field.The invention proposes a kind of laser-microwave composite communication methods of raising laser communication bit error rate when laser/microwave composite communication, its main feature is that while carrying out high-speed communication using laser, using the information reception condition of microwave link passback laser communication receiving end.When the laser communication bit error rate rises, it is low using microwave communication traffic rate but can the good feature of passband, receiving end receives defeated information state to transmitting terminal passback using microwave, transmitting terminal retransmits the information for failing to be properly received according to information reception condition, to under the premise of guaranteeing does not reduce laser communication rate, does not influence communication security situation, the bit error rate of improving laser communication system promotes the effective utilization of communication system.
Description
Technical field
The present invention relates to a kind of laser-microwave composite communication methods for improving the laser communication bit error rate, belong to information technology neck
Domain.
Background technique
With being constantly progressive for science and technology, due to having traffic rate more higher than microwave, laser communication technology development
Rapidly, application prospect is good.But laser communication is influenced vulnerable to atmosphere etc., and the bit error rate is caused to increase, and seriously affects laser communication
System can passband and availability, and restrict laser communication system large-area applications principal element.For this purpose, occurring swashing
Light/microwave composite communication scheme, the method combined using laser with microwave communication, the two are learnt from other's strong points to offset one's weaknesses, and laser communication is utilized
Rate is high, microwave communication can the general character can be good feature, optimum option communication mode under the conditions of different channels, channel adopts when allowing
High-speed communication is carried out with laser；When channel quality declines, using microwave communication, reduce traffic rate guarantee can passband, maximum can
Taking into account for energy at a high speed can passband demand with height.But when using microwave communication, although can guarantee the bit error rate of communication, communication
Rate will be greatly reduced, while also not can guarantee the confidentiality of transmission information.
The invention proposes a kind of laser-microwave of raising laser communication bit error rate when laser/microwave composite communication is compound
Communication means, its main feature is that returning laser communication receiving end using microwave link while carrying out high-speed communication using laser
Information reception condition.The laser communication bit error rate rise when, it is low using microwave communication traffic rate but can the good feature of passband,
Receiving end receives defeated information state to transmitting terminal passback using microwave, and transmitting terminal is according to information reception condition to failing to be properly received
Information retransmitted, thus guarantee do not reduce laser communication rate, do not influence communication security situation under the premise of, promoted swash
The bit error rate of optical communication system promotes the effective utilization of communication system.
Summary of the invention
In order to improve the bit error rate of the laser communication system under complicated weather condition, guarantees traffic rate and confidentiality, mention
Its availability is risen, the invention proposes a kind of laser-microwave composite communication methods for improving the laser communication bit error rate.
Equipment needed for improving the laser-microwave composite communication method of the laser communication bit error rate and specific implementation method are as follows:
Required equipment is made of transmitting terminal 1 and receiving end 2, and wherein transmitting terminal 1 includes laser communication transmitting unit 3 and microwave
Receiving unit 4, Unit two are simultaneously operable；Receiving end 2 includes laser communication receiving unit 5 and Microwave emission unit 6, Unit two
It is logical to be simultaneously operable.
Realize step:
5 optical axis of laser communication receiving unit of step 1, the laser communication transmitting unit 3 of transmitting terminal 1 and receiving end 2 is aligned
Guarantee can carry out laser communication；
While step 2, the alignment of laser communication optical axis, microwave communication transmitting unit 6 and microwave communication receiving unit 5 are also real
It is now aligned, and microwave communication can be carried out；
Step 3, the data to be sent to laser communication are grouped, sort, are packaged, and volume of data packet are formed, every
Increase the packet header of mark data packet number in group data packet；
Step 4, transmitting terminal 1 laser communication transmission unit 3 successively send data packet, the laser communication of receiving end 2 receives
5 received data packet of unit；
Step 5, receiving end 2 laser communication receiving unit 5 receive a bag data of complete and accurate after, extract packet header simultaneously
Transmitting terminal 1 is sent to by the Microwave emission unit 6 of receiving end 2；
Step 6, transmitting terminal 1 microwave receiving unit 4 receive receiving end 2 transmission header data after, confirmation other side
Receive the corresponding data packet in packet header；After a certain time, the data that packet header is confirmed are replied for not receiving receiving end 2,
Then confirm that other side does not receive corresponding data packet, then corresponding data packet is retransmitted；
Step 7 is repeated in step 5 and step 6, sends data or artificial until receiving end 2 is accurately connected to transmitting terminal 1
Until terminating communication.
By above step, using laser/microwave composite communication link, large capacity is sent using laser communication link high speed
Data, using low-speed microwave link passback packet header etc. low volume datas, to the traffic rate of laser communication and microwave communication and
After data packing length optimizes, the bit error rate that i.e. raising laser communication may be implemented will not reduce the rate of laser communication again
And confidentiality, improve the communication efficiency of system.
The invention proposes a kind of laser-microwave composite communication method its advantages for improving the laser communication bit error rate to be
While data are carried out after packing coding through high-rate laser communications, using can passband is good but traffic rate is low microwave links
Road returns the header packet information for receiving data, confirms that data receiving state, transmitting terminal carry out data re-transmitting according to reception state, from
And in the bit error rate for not reducing laser communication rate, not destroying raising laser communication under the premise of information privacy is transmitted.
Detailed description of the invention
Fig. 1 is that a kind of equipment of laser-microwave composite communication method for improving the laser communication bit error rate forms figure, in which: 1
Be receiving end for transmitting terminal, 2,3 be laser communication transmitting unit, 4 be microwave communication receiving unit, 5 to be that laser communication receives single
Member, 6 are microwave communication transmitting unit.Scheming the figure is also abstract of description attached drawing.
Specific embodiment
By taking certain laser communication system as an example, steps are as follows for system composition and realization:
System is made of transmitting terminal 1, receiving end 2, and wherein transmitting terminal 1 includes laser communication transmitting unit 3 and microwave communication
Receiving unit 4；Receiving end 2 includes laser communication receiving unit 5 and microwave communication transmitting unit 6.
Laser communication rate 2Gbps, microwave communication rate 100Mbps, data encoding are that every bag data includes 8 bit identification numbers
According to the packet header of packet serial number and 128 effective digitals, totally 136.
Realize step:
5 optical axis of laser communication receiving unit of step 1, the laser communication transmitting unit 3 of transmitting terminal 1 and receiving end 2 is aligned
And laser communication can be carried out；
While step 2, the alignment of laser communication optical axis, microwave communication transmitting unit 6 and microwave communication receiving unit 5 are also real
It is now aligned, and microwave communication can be carried out；
Step 3, to the laser communication information to be sent by every bag data include 8 bit identification data packet serial numbers packet header and
128 effective informations, totally 136 are grouped packing, sequence, form data packet；
Step 4, transmitting terminal 1 laser communication transmission unit 3 successively send data packet by 2Gbps, the laser of receiving end 2 is logical
Believe 6 received data packet of receiving unit；
Step 5, receiving end 2 laser communication receiving unit 5 receive a bag data of complete and accurate after, extract packet header simultaneously
Transmitting terminal 1 is sent to 100Mbps by the Microwave emission unit 6 of receiving end 2；
Step 6, transmitting terminal 1 microwave receiving unit 4 receive header data after, to have been received by packet header corresponding by confirmation other side
Data packet；After 2 seconds, received data are confirmed for not receiving receiving end 2, carry out data packet retransmission；
Step 7 is repeated in step 6 and step 5, until receiving end 2 is accurately connected to data or sign off.
By above step, using a kind of laser-microwave composite communication side of raising laser communication bit error rate of the invention
Method can improve the bit error rate of laser communication under the premise of guaranteeing 2Gbps transmission rate, and guarantee the guarantor of information transmission
It is close.
Claims (6)
1. a kind of laser-microwave composite communication method for improving the laser communication bit error rate, required equipment is by transmitting terminal 1 and receives
2 composition of end, wherein transmitting terminal 1 includes laser communication transmitting unit 3 and microwave receiving unit 4, and two are singly simultaneously operable；Receiving end
2 include laser communication receiving unit 5 and Microwave emission unit 6, and Unit two are logical to be simultaneously operable；It is characterized in that realizing step
Are as follows:
5 optical axis of laser communication receiving unit of step 1, the laser communication transmitting unit 3 of transmitting terminal 1 and receiving end 2, which is aligned, to be guaranteed
It can carry out laser communication；
While step 2, the alignment of laser communication optical axis, microwave communication transmitting unit 6 and microwave communication receiving unit 5 are also realized pair
Standard, and microwave communication can be carried out；
Step 3, the information to be sent to laser communication are grouped packing, sequence, volume of data packet are formed, in every group of data
Increase the packet header of mark this packet unique serial number in packet；
Step 4, transmitting terminal 1 laser communication transmission unit 3 successively send data packet, the laser communication receiving unit 5 of receiving end 2
Received data packet；
Step 5, receiving end 2 laser communication receiving unit 5 receive a bag data of complete and accurate after, extract packet header and simultaneously pass through
The Microwave emission unit 6 of receiving end 2 is sent to transmitting terminal 1；
Step 6, transmitting terminal 1 microwave receiving unit 4 receive receiving end 2 transmission header data after, confirmation other side have been received by
The corresponding data packet in packet header；After a certain time, the data that packet header is confirmed are replied for not receiving receiving end 2, then really
Recognize other side and do not receive corresponding data packet, then corresponding data packet is retransmitted；
Step 7 is repeated in step 6 and step 5, until receiving end 2 is accurately connected to data or sign off.
2. a kind of laser-microwave composite communication method for improving the laser communication bit error rate according to claim 1, feature
It is: using laser/microwave while the composite communication mode of communication.
3. a kind of laser-microwave composite communication method for improving the laser communication bit error rate according to claim 1, feature
Be: microwave communication returns laser communication and receives data cases.
4. a kind of laser-microwave composite communication method for improving the laser communication bit error rate according to claim 1, feature
It is: laser communication transmission data is packaged, are sorted, increase the packet header of characterize data packet number in the packet.
5. a kind of laser-microwave composite communication method for improving the laser communication bit error rate according to claim 1, feature
It is: the laser communication bit error rate is improved using retransmission scheme.
6. a kind of laser-microwave composite communication method for improving the laser communication bit error rate according to claim 1, feature
It is: does not reduce laser communication transmission rate, do not destroy information transmission security.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416364.1A CN109005015B (en) | 2017-06-06 | 2017-06-06 | Laser microwave composite communication method for reducing laser communication error rate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710416364.1A CN109005015B (en) | 2017-06-06 | 2017-06-06 | Laser microwave composite communication method for reducing laser communication error rate |
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| CN109005015A true CN109005015A (en) | 2018-12-14 |
| CN109005015B CN109005015B (en) | 2021-02-26 |
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| CN201710416364.1A Active CN109005015B (en) | 2017-06-06 | 2017-06-06 | Laser microwave composite communication method for reducing laser communication error rate |
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| US8422883B2 (en) * | 2009-07-29 | 2013-04-16 | Industrial Technology Research Institute | Head-end circuit and remote antenna unit and hybrid wired/wireless network system and transceiving method using thereof |
| CN103687074A (en) * | 2013-11-11 | 2014-03-26 | 中国航天科技集团公司第五研究院第五一三研究所 | Trunked aircraft communication system |
| CN103762998A (en) * | 2013-10-22 | 2014-04-30 | 长春理工大学 | Large-view field antenna-sharing microwave and laser-mixing wireless communication apparatus |
| CN106571511A (en) * | 2016-11-15 | 2017-04-19 | 长春理工大学 | Light foldable microwave and laser-mixed film communication antenna |
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- 2017-06-06 CN CN201710416364.1A patent/CN109005015B/en active Active
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| EP0314101A1 (en) * | 1987-10-29 | 1989-05-03 | Alcatel Espace | Radiofrequency-optical transmission system, especially in the field of satellite communications |
| US6490066B1 (en) * | 1999-07-29 | 2002-12-03 | Astroterra Corporation | Laser/microwave dual mode communications system |
| CN1295384A (en) * | 1999-11-09 | 2001-05-16 | 布达泰克有限公司 | Laser and microwave hydrid communication method and system |
| CN1451210A (en) * | 2000-01-13 | 2003-10-22 | 莱特卜印特通讯股份有限公司 | Hybrid wireless optical and radio fequency communication link |
| US6928248B2 (en) * | 2001-05-30 | 2005-08-09 | Optical Access, Inc. | Optical communications system with back-up link |
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| CN109005015B (en) | 2021-02-26 |
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