CN109039459A - A method of improving anti-intercepting and capturing probability between satellite and Underwater Moving Target - Google Patents
A method of improving anti-intercepting and capturing probability between satellite and Underwater Moving Target Download PDFInfo
- Publication number
- CN109039459A CN109039459A CN201810622113.3A CN201810622113A CN109039459A CN 109039459 A CN109039459 A CN 109039459A CN 201810622113 A CN201810622113 A CN 201810622113A CN 109039459 A CN109039459 A CN 109039459A
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- China
- Prior art keywords
- satellite
- moving target
- underwater moving
- intercepting
- target
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Classifications
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- 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
- H04B10/118—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum specially adapted for satellite communication
-
- 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
- H04B10/50—Transmitters
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
-
- 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
- H04B10/60—Receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
Abstract
The invention discloses a kind of methods of anti-intercepting and capturing probability between raising satellite and Underwater Moving Target, by the way of more star array sweepings, Underwater Moving Target multiple aperture diversity reception.Multi satellites joint scanning can reduce the light energy that every satellite issues, to reduce intercepting and capturing rate under the premise of guaranteeing that receiving Underwater Moving Target receives same luminous intensity；The light energy of multi-satellite downlink can be gathered the threshold intensity for reaching detector needs by the multiple aperture diversity reception on submarine, to ensure that signal receives successfully under more star array sweeping weak signal conditions.The advantage of the program is mainly reflected in two aspects: when the gross energy of more star diversity receptions is greater than the energy of traditional single star scheme, to improve signal-to-noise ratio；In more star multi-spread paths, there are the probability that satellite failure or optical path block, the diversity reception of multipath is not influenced by individual link lost contact, improves the probability of successful service comple of link.
Description
Technical field
The present invention is a kind of suitable for the bluish-green laser communications field between satellite and Underwater Moving Target, improves satellite and underwater
The mode of link anti-intercepting and capturing probability between moving-target.
Background technique
Modern communication technology is quite mature, if but realizing that communication still uses microwave hand at a distance under water
Section.Current common Underwater Moving Target communication mode is radio communication, the wave band mainly used include ultralow frequency (SLF),
Very low frequency (VLF), low frequency (LF), high frequency (HF), very high frequency(VHF) (VHF), superfrequency (UHF) and the microwave frequency band for satellite communication
(SHF and EHF) etc..
Traditional microwave will face following problems to Underwater Moving Target communication mode:
1) Underwater Moving Target periodically floats to antenna and leaks out depth, by antenna emersion water surface receiving.This mode is greatly about
The mobility of beam Underwater Moving Target communication.
2) Underwater Moving Target communication is to utilize SLF communication, but traffic rate is extremely low.This mode greatly constrains
The timeliness of Underwater Moving Target communication.
The focus and emphasis of each Underwater Moving Target power research to Underwater Moving Target communication, from Underwater Moving Target occur with
Afterwards, each state all is making great efforts to inquire into the new method for being suitable for Underwater Moving Target communication.Therefore, there is an urgent need to develop develop other data
Rate is higher, the advanced communication system of meet Underwater Moving Target mobile communication demand under water, and bluish-green laser is to Underwater Moving Target
What communication system was exactly born in the above context.
Between blue light to the spectral band between green light just at the low loss window area of seawater, transmission in the seawater
Loss is smaller, can penetrate hundreds of meters of seawater and keep good directionality, is that uniquely can be used in ocean over long distances
The spectrum resource of communication.The bluish-green laser communication technology is to encode information onto be modulated in high-energy bluish-green laser pulse, utilizes light
It learns detection and photoelectricity decoding demodulation techniques realizes information transmission.Due to the characteristic of bluish-green laser transmission, satellite platform is using bluish-green
Laser communicates Underwater Moving Target, is a preferable selection and feasible scheme.Based on satellite platform carry Laser emission with
Underwater Moving Target installs reception system additional, and laser communication link can be established between satellite and Underwater Moving Target by bluish-green laser,
Underwater Moving Target can be normaled cruise in safety depth when communication.Bluish-green laser communication is considered most promising to water at present
Lower cruise Underwater Moving Target carries out the technological means of high-speed communication safe and out of sight, becomes in the world to the Underwater Moving Target communication technology
A main direction of development.
In order to ensure the safety and concealment of Underwater Moving Target, the safe transmission of information is between satellite and Underwater Moving Target
The problem of most important thing.Current generally uses the modes such as satellite microwave, the underwater sound or long wave, safety to underwater eastern destinations traffic
It is not strong with concealment.
Laser communication has the advantage of high directivity, can reach better anti-intercepting and capturing.Bluish-green laser have atmosphere and
Seawater double window characteristic, therefore bluish-green laser is the emphasis of countries in the world research to latent communication.In actual use, due to big
The influence of the various factors such as gas turbulent flow, sea surface reflection and underwater fading channel, transmitting light function needed for the latent bluish-green laser communication of star
Rate is larger, therefore there is the hidden danger for being easy exposure.
Summary of the invention
The present invention gives a kind of raising satellite and Underwater Moving Target for satellite and Underwater Moving Target link safety problem
Between anti-intercepting and capturing probability method, meet Underwater Moving Target safety and concealment demand.
To achieve the above object, the invention is realized by the following technical scheme,
A method of anti-intercepting and capturing probability between satellite and Underwater Moving Target is improved, using more star array sweepings, moves mesh under water
Mark the mode of multiple aperture diversity reception；Specifically comprise the following steps:
When S1, downlink communication, it is necessary first to target sea area are divided into several grids, multi-satellite scans plan according to collaboration
Slightly, it is directed at certain sea area grid and is simultaneously emitted by laser and carry out collaboration scanning；At this point, the optical terminus on moving-target is in always under water
State to be received；In this state, the shield at the top of Underwater Moving Target is opened always, several may be implemented orientation and bow
The optical terminus for facing upward rotation is respectively aligned to some satellite for being equipped with bluish-green laser load；
S2, above satellite collaboration scanning to sea area where Underwater Moving Target when, the laser beam of satellite launch will cover completely
Lid Underwater Moving Target, each dimensional turntable are respectively aligned to each satellite, and the bluish-green receiving light path below dimensional turntable receives to defend oneself
The laser beam of star, and carry out optical path coupling.
Wherein, the downlink communication of satellite to Underwater Moving Target is the channel of task distribution, and moving-target does not expose certainly under water
In the case where body exact position, the task data that satellite issues is received.
The optical terminus is mounted on the mounting groove of turntable, and the protection glass of pressure-resistant waterproof is equipped with above mounting groove
Layer.
It is bluish-green that the present invention improves satellite and Underwater Moving Target by the way of more star array sweepings, multiple aperture diversity reception
The anti-intercepting and capturing characteristic of laser link.Multi satellites joint scanning can be before guaranteeing that receiving Underwater Moving Target receives same luminous intensity
It puts, the light energy that every satellite issues is reduced, to reduce intercepting and capturing rate；Multiple aperture diversity reception on submarine can be by more
The light energy of satellite downlink gathers the threshold intensity for reaching detector needs, to ensure more star array sweeping weak signals
Under the conditions of signal receive successfully.The advantage of the program is mainly reflected in two aspects: when the gross energy of more star diversity receptions is greater than
The energy of traditional single star scheme, to improve signal-to-noise ratio；In more star multi-spread paths, there are satellite failures or optical path to block
Probability, the diversity reception of multipath do not influenced by individual link lost contact, improves the probability of successful service comple of link.
Specific embodiment
Fixed statellite proposed by the present invention imaging Yaw steering method is made below in conjunction with specific embodiment further detailed
Explanation.
The embodiment of the invention provides a kind of methods of anti-intercepting and capturing probability between raising satellite and Underwater Moving Target, using more stars
Array sweeping, Underwater Moving Target multiple aperture diversity reception mode；Specifically comprise the following steps:
S1, satellite to Underwater Moving Target downlink communication be task distribution channel, moving-target does not expose itself under water
In the case where exact position, the task data that satellite issues is received.When downlink communication, it is necessary first to be divided into target sea area several
Grid, multi-satellite are directed at certain sea area grid and are simultaneously emitted by laser and carry out collaboration scanning according to collaboration scanning strategy.At this point,
Optical terminus on Underwater Moving Target is in state to be received always.In this state, the shield at the top of Underwater Moving Target begins
It opens eventually, orientation may be implemented in several and the optical terminus of pitching rotation is respectively aligned to some and is equipped with bluish-green laser load
Satellite (protective glass layers for having pressure-resistant waterproof above turntable).
S2, above satellite collaboration scanning to sea area where Underwater Moving Target when, the laser beam of satellite launch will cover completely
Lid Underwater Moving Target.At this point, since each dimensional turntable has been respectively aligned to each satellite, the bluish-green reception below dimensional turntable
Optical path can receive the laser beam from satellite.Into optical terminus light beam, will further be coupled in receiving light path, to improve
The energy of signal is received, and then under the low precondition of single channel transmission power, improves link communication reliability.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, it can also make several improvements and retouch, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (4)
1. a kind of method for improving anti-intercepting and capturing probability between satellite and Underwater Moving Target, which is characterized in that the more star array sweepings of use,
The mode of Underwater Moving Target multiple aperture diversity reception.
2. a kind of method for improving anti-intercepting and capturing probability between satellite and Underwater Moving Target as described in claim 1, which is characterized in that
Include the following steps:
When S1, downlink communication, it is necessary first to target sea area are divided into several grids, multi-satellite is right according to collaboration scanning strategy
Certain quasi- sea area grid is simultaneously emitted by laser and carries out collaboration scanning；At this point, the optical terminus on moving-target is in waiting always under water
Receipts state；In this state, the shield at the top of Underwater Moving Target is opened always, and orientation and pitching rotation may be implemented in several
The optical terminus turned is respectively aligned to some satellite for being equipped with bluish-green laser load；
S2, above satellite collaboration scanning to sea area where Underwater Moving Target when, water will be completely covered in the laser beam of satellite launch
Lower moving-target, each dimensional turntable are respectively aligned to each satellite, and the bluish-green receiving light path below dimensional turntable is received from satellite
Laser beam, and carry out optical path coupling.
3. a kind of method for improving anti-intercepting and capturing probability between satellite and Underwater Moving Target as claimed in claim 2, which is characterized in that
The downlink communication of satellite to Underwater Moving Target is the channel of task distribution, and moving-target does not expose the feelings of itself exact position under water
Under condition, the task data that satellite issues is received.
4. a kind of method for improving anti-intercepting and capturing probability between satellite and Underwater Moving Target as claimed in claim 2, which is characterized in that
The optical terminus is mounted on the mounting groove of turntable, and the protective glass layers of pressure-resistant waterproof are equipped with above mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810622113.3A CN109039459A (en) | 2018-06-15 | 2018-06-15 | A method of improving anti-intercepting and capturing probability between satellite and Underwater Moving Target |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810622113.3A CN109039459A (en) | 2018-06-15 | 2018-06-15 | A method of improving anti-intercepting and capturing probability between satellite and Underwater Moving Target |
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| CN109039459A true CN109039459A (en) | 2018-12-18 |
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| CN201810622113.3A Pending CN109039459A (en) | 2018-06-15 | 2018-06-15 | A method of improving anti-intercepting and capturing probability between satellite and Underwater Moving Target |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332919A (en) * | 2019-01-25 | 2021-02-05 | 长沙天仪空间科技研究院有限公司 | Laser broadcast communication system |
| CN114050855A (en) * | 2021-09-27 | 2022-02-15 | 南京邮电大学 | Channel information self-adaptive oriented intelligent cooperative transmission method between low-orbit satellites |
Citations (5)
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| CN1140942A (en) * | 1995-06-06 | 1997-01-22 | 环球星有限合伙人公司 | Satellite repeater diversity resource management system |
| CN1239848A (en) * | 1998-05-07 | 1999-12-29 | 洛拉尔太空通讯公司 | Two-way/broadcast mobile and portable satellite communications system |
| CN201001127Y (en) * | 2006-12-27 | 2008-01-02 | 中国科学院上海光学精密机械研究所 | Full-digitization space optical communication array signal diversity reception system |
| CN102624463A (en) * | 2011-01-26 | 2012-08-01 | 北京国科环宇空间技术有限公司 | Method and system for establishing communication links in submarine communication |
| CN106100755A (en) * | 2016-05-30 | 2016-11-09 | 中国科学院上海光学精密机械研究所 | Adaptive wireless optical communication apparatus and method under water |
-
2018
- 2018-06-15 CN CN201810622113.3A patent/CN109039459A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1140942A (en) * | 1995-06-06 | 1997-01-22 | 环球星有限合伙人公司 | Satellite repeater diversity resource management system |
| CN1239848A (en) * | 1998-05-07 | 1999-12-29 | 洛拉尔太空通讯公司 | Two-way/broadcast mobile and portable satellite communications system |
| CN201001127Y (en) * | 2006-12-27 | 2008-01-02 | 中国科学院上海光学精密机械研究所 | Full-digitization space optical communication array signal diversity reception system |
| CN102624463A (en) * | 2011-01-26 | 2012-08-01 | 北京国科环宇空间技术有限公司 | Method and system for establishing communication links in submarine communication |
| CN106100755A (en) * | 2016-05-30 | 2016-11-09 | 中国科学院上海光学精密机械研究所 | Adaptive wireless optical communication apparatus and method under water |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112332919A (en) * | 2019-01-25 | 2021-02-05 | 长沙天仪空间科技研究院有限公司 | Laser broadcast communication system |
| CN114050855A (en) * | 2021-09-27 | 2022-02-15 | 南京邮电大学 | Channel information self-adaptive oriented intelligent cooperative transmission method between low-orbit satellites |
| CN114050855B (en) * | 2021-09-27 | 2023-12-12 | 南京邮电大学 | Channel information self-adaption-oriented intelligent cooperative transmission method between low-orbit satellites |
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Application publication date: 20181218 |
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| RJ01 | Rejection of invention patent application after publication |