CN105591724A - Method of double-path capturing switching way confronting data transmission multi-path interferences - Google Patents
Method of double-path capturing switching way confronting data transmission multi-path interferences Download PDFInfo
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- CN105591724A CN105591724A CN201610090473.4A CN201610090473A CN105591724A CN 105591724 A CN105591724 A CN 105591724A CN 201610090473 A CN201610090473 A CN 201610090473A CN 105591724 A CN105591724 A CN 105591724A
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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
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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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
- H04B1/74—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
- H04B1/745—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 using by-passing or self-healing methods
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method of double-path capturing switching way confronting data transmission multi-path interferences. A plurality of capture branches are provided, and one of the capture branches can be used as a wireless data transmission system default branch, and other capture branches can be used as auxiliary capture branches. The plurality of capture branches are provided with control signal capturing and processing modules at the same time, and during the initial working of the wireless data transmission system, the wireless data transmission system default branch can be used for the capturing, and after the data decision of the wireless data transmission system default branch, a communication link can be established. When the wireless data transmission system is under the influence of the multi-path interferences, and is in the unstable working state, the auxiliary capturing branches can be started automatically, and the control signal capturing and processing module of the auxiliary capturing branches can be used for the selecting and the switching of the paths, and therefore the wireless data transmission system can be used for the data information transmission via the effective demodulation path, and the probability of the capturing carried out via the stable transmission channel can be effectively improved.
Description
Technical field
The present invention relates to Wireless Data Transmission Anti-Multipath Interference Technology field, relate in particular to a kind of dual path and catch switching sideThe method that formula antagonism transfer of data multipath disturbs.
Background technology
Aviation wireless data link is vulnerable to the impact that multipath disturbs, and the mode that adopts single channel to catch is difficult to ensure cardCatching to stable path of data transmission link high probability, thus cause Wireless Data Transmission information occur error code and loseFrame, has reduced reliability and the accuracy of data transmission system. Therefore how to improve the knowledge of data transmission system to multipath signalNot, screening, processing have become those skilled in the art's major issue urgently to be resolved hurrily.
Summary of the invention
Technical problem solved by the invention is to provide a kind of dual path to catch switching mode antagonism transfer of data multipathThe method of disturbing, to solve the shortcoming in above-mentioned background technology.
Technical problem solved by the invention realizes by the following technical solutions:
Dual path is caught the method that switching mode antagonism transfer of data multipath disturbs, and be provided with multichannel and catch branch road, and willWherein branch road is given tacit consent to as wireless system for transmitting data in a road, and other roads are as aided capture branch road; Catch and prop up in multichannel simultaneouslyIn road, be respectively arranged with that control signal is caught and processing module, in the time of wireless system for transmitting data initialization, data message is logicalCross intermediate frequency input, catch with wireless system for transmitting data acquiescence branch road, through a wireless system for transmitting data acquiescence wayAfter judgement, set up communication link; When wireless system for transmitting data is subject to multipath interference effect, while there is unstable operation, automaticallyStart aided capture branch road, this aided capture branch road has identical state of the art with wireless system for transmitting data acquiescence branch road,By this aided capture branch road, judge that pseudo-code index signal after acquiring pseudo code is with identification, screening multipath signal, and calculate manyThe messaging parameters such as time delay, phase place and the relevant peaks of footpath signal, to be caught and to be processed by the control signal in aided capture branch roadModule is carried out selection and the switching in path, impels wireless system for transmitting data to be operated on effective demodulation paths, carries out dataInformation output.
In the present invention, multichannel is caught branch road and is comprised that A footpath catches branch road, B footpath aided capture branch road, adopts the two-way side of catchingFormula, is identified, screens, is processed by the data of catching path to two, and switches and catch passage fast, to ensure that data passTransmission link is switched on more stable transmission channel path fast, improves the successful probability of pseudo-code fast Acquisition, effective guarantee numberIt is believed that normally catching of breath, impel the fast quick-recovery of processing data information, thereby reduce because being repeatedly captured in unsettled multipath letterOn road, cause Wireless Data Transmission information to occur the probability of error code and frame losing.
Beneficial effect: the present invention adopts two-way acquisition mode, by two quick switchings of catching path demodulation data, carriesThe successful probability of high pseudo-code fast Acquisition, avoids data transmission system to be captured in continuously unsettled Multipath Transmission passage, improvesIt is captured in the probability of stable transfer passage.
Brief description of the drawings
Fig. 1 is the schematic diagram of preferred embodiment of the present invention.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, knot belowClose concrete diagram, further set forth the present invention.
Catch referring to a kind of dual path of Fig. 1 the method that switching mode antagonism transfer of data multipath disturbs, be provided with two-wayCatching branch road, is respectively that branch road, B footpath aided capture branch road are caught in A footpath, catches branch road and B footpath aided capture branch road simultaneously in A footpathIn be provided with that control signal is caught and processing module, it is wireless system for transmitting data acquiescence branch road that A catches in footpath branch road, at wireless numberReportedly when communication system initialization, data message is inputted by intermediate frequency, catches branch road catch with A footpath, sentences through A footpath dataCertainly, set up communication link, when wireless system for transmitting data is subject to multipath interference effect, while there is unstable operation, automatically start B footpathAided capture branch road, this branch road is caught branch road with A footpath and is had identical state of the art, by B footpath data decision, judges that pseudo-code catchesPseudo-code index signal after obtaining is with identification, screening multipath signal, and it is logical to calculate time delay, phase place and the relevant peaks etc. of multipath signalLetter parameter, to catch by the control signal in the aided capture branch road of B footpath the selection of carrying out A path and B path with processing moduleAnd switching, impel wireless system for transmitting data to be operated on effective demodulation paths, thereby ensure wireless system for transmitting data letterThe reliable output of breath; It is as follows that concrete A/B two-way is caught between branch road logic control relation:
1) in the time of A footpath losing lock, the locking of B footpath, select the demodulating data output of B footpath;
2), in the time of the locking of A footpath, B footpath losing lock, select the demodulating data output of A footpath;
3) in the time of the locking of A footpath, the locking of B footpath, select to maintain an output state;
4) in the time of A footpath losing lock, B footpath losing lock, communication link disconnects, and demodulation output is invalid.
In the present embodiment, adopt two-way acquisition mode, by the data of catching path to two identify, screen,Process, and switch and catch passage fast, to ensure that data transmission link is switched on more stable transmission channel path fast, carriesThe successful probability of high pseudo-code fast Acquisition, normally catching of effective guarantee data message, impels the fast quick-recovery of processing data information,Thereby reduce because being repeatedly captured in unsettled multipath channel, cause Wireless Data Transmission information to occur the machine of error code and frame losingRate.
More than show and described general principle of the present invention and principal character and advantage of the present invention. The technology of the industryPersonnel should understand, and the present invention is not restricted to the described embodiments, and the just explanation of describing in above-described embodiment and description originallyThe principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changesChange and improve and all fall in the claimed scope of the invention. The claimed scope of the present invention by appending claims andEquivalent defines.
Claims (3)
1. dual path is caught the method that switching mode antagonism transfer of data multipath disturbs, and it is characterized in that, is provided with multichannelCatch branch road, and wherein branch road is given tacit consent to as wireless system for transmitting data in a road, other roads are as aided capture branch road; SimultaneouslyCatch and in branch road, be respectively arranged with that control signal is caught and processing module in multichannel, in wireless system for transmitting data initializationTime, data message is inputted by intermediate frequency, catches, through Wireless Data Transmission system with wireless system for transmitting data acquiescence branch roadAfter system acquiescence branch road data decision, set up communication link; When wireless system for transmitting data is subject to multipath interference effect, occur unstableWhen work, automatically start aided capture branch road, this aided capture branch road has identical with wireless system for transmitting data acquiescence branch roadState of the art, by this aided capture branch road, judge that pseudo-code index signal after acquiring pseudo code is with identification, screening multipath letterNumber, and calculate messaging parameter, to catch the choosing of carrying out path with processing module by the control signal in aided capture branch roadSelect and switch, impelling wireless system for transmitting data to be operated on effective demodulation paths, carrying out data message output.
2. a kind of dual path according to claim 1 is caught the method that switching mode antagonism transfer of data multipath disturbs, itsBe characterised in that, multichannel is caught branch road and is comprised that A footpath catches branch road, B footpath aided capture branch road.
3. a kind of dual path according to claim 1 is caught the method that switching mode antagonism transfer of data multipath disturbs, itsBe characterised in that, messaging parameter comprises time delay, phase place and the relevant peaks of multipath signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610090473.4A CN105591724A (en) | 2016-02-18 | 2016-02-18 | Method of double-path capturing switching way confronting data transmission multi-path interferences |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610090473.4A CN105591724A (en) | 2016-02-18 | 2016-02-18 | Method of double-path capturing switching way confronting data transmission multi-path interferences |
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| CN105591724A true CN105591724A (en) | 2016-05-18 |
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| CN201610090473.4A Pending CN105591724A (en) | 2016-02-18 | 2016-02-18 | Method of double-path capturing switching way confronting data transmission multi-path interferences |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427070A (en) * | 2020-05-09 | 2020-07-17 | 电子科技大学 | GNSS anti-deception jamming method |
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| CN201533317U (en) * | 2009-08-03 | 2010-07-21 | 中国电子科技集团公司第五十四研究所 | Noninductive double-locomotive hot backup microwave communication modem device |
| CN102023302A (en) * | 2010-12-17 | 2011-04-20 | 浙江大学 | Multichannel cooperative control method and device in satellite navigation receiver |
| CN102223207A (en) * | 2011-06-18 | 2011-10-19 | 安徽省菲特科技股份有限公司 | Base band lossless switching method and base band lossless switching device based on regeneration section (RS) frame structure |
| CN102375149A (en) * | 2010-08-18 | 2012-03-14 | 中国科学院微电子研究所 | Multi-associated-branch mixed spacing delay lock loop and application method thereof |
| CN102590833A (en) * | 2012-03-12 | 2012-07-18 | 航天恒星科技有限公司 | Multichannel joint capture method of satellite navigation receiver |
| CN105182372A (en) * | 2015-09-25 | 2015-12-23 | 中国人民解放军国防科学技术大学 | Method and system of capturing three-frequency multichannel radio measurement system signal |
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2016
- 2016-02-18 CN CN201610090473.4A patent/CN105591724A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1373584A (en) * | 2002-04-22 | 2002-10-09 | 北京大学 | PN code capture method and circuit for direct sequence spectrum spread communication |
| CN201533317U (en) * | 2009-08-03 | 2010-07-21 | 中国电子科技集团公司第五十四研究所 | Noninductive double-locomotive hot backup microwave communication modem device |
| CN102375149A (en) * | 2010-08-18 | 2012-03-14 | 中国科学院微电子研究所 | Multi-associated-branch mixed spacing delay lock loop and application method thereof |
| CN102023302A (en) * | 2010-12-17 | 2011-04-20 | 浙江大学 | Multichannel cooperative control method and device in satellite navigation receiver |
| CN102223207A (en) * | 2011-06-18 | 2011-10-19 | 安徽省菲特科技股份有限公司 | Base band lossless switching method and base band lossless switching device based on regeneration section (RS) frame structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111427070A (en) * | 2020-05-09 | 2020-07-17 | 电子科技大学 | GNSS anti-deception jamming method |
| CN111427070B (en) * | 2020-05-09 | 2023-03-14 | 电子科技大学 | GNSS anti-deception jamming method |
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Application publication date: 20160518 |