CN108347279A - A kind of onboard system of laser beam communications satellite - Google Patents
A kind of onboard system of laser beam communications satellite Download PDFInfo
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- CN108347279A CN108347279A CN201810362282.8A CN201810362282A CN108347279A CN 108347279 A CN108347279 A CN 108347279A CN 201810362282 A CN201810362282 A CN 201810362282A CN 108347279 A CN108347279 A CN 108347279A
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- 238000004891 communication Methods 0.000 title claims abstract description 224
- 239000011159 matrix material Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 5
- 239000000969 carrier Substances 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000003491 array Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Classifications
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- 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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18515—Transmission equipment in satellites or space-based relays
-
- 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
- H04B10/27—Arrangements for networking
-
- 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
- H04B7/1851—Systems using a satellite or space-based relay
- H04B7/18519—Operations control, administration or maintenance
-
- 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
- H04B7/18521—Systems of inter linked satellites, i.e. inter satellite service
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Electromagnetism (AREA)
- Computing Systems (AREA)
- Radio Relay Systems (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a kind of onboard systems of laser beam communications satellite, are related to technical field of laser communication, and main purpose is to realize that one satellite of synchronization provides service for multiple laser communication terminals under lower cost.The onboard system of the laser beam communications satellite of main technical schemes, including：Laser communication terminal and electric cabinet；The electric cabinet is used for the power supply of laser communication terminal, provides observing and controlling instruction and information flow；The laser communication terminal includes at least two Space laser communications terminals and multiple satellite-ground laser communication terminals；At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；Multiple satellite-ground laser communication terminal is used to carry out two-way laser communication with earth station system, aircraft；The scanning range of each satellite-ground laser communication terminal is less than the subtended angle over the ground of satellite, the subtended angle over the ground of satellite where the scanning range that multiple satellite-ground laser communication terminal is collectively formed covers it.Present invention is mainly used for the laser communications of aircraft.
Description
Technical field
The present invention relates to a kind of technical field of laser communication, more particularly to a kind of onboard system of laser beam communications satellite.
Background technology
Currently, air communications is mainly realized by microwave satellite.When being communicated by the Microwave Radio, due to nothing
Line electric frequency is the basis that aviation aircraft and inter-satellite are able to normal communication, is the channel of information transmission, in order to prevent satellite
Between electromagnetic interference, need to keep the certain intervals of communication frequency to carry out frequency isolation, therefore radio-frequency spectrum is by International Telecommunication Association
(ITU) and the stringent management and control of national governments.In addition, radio communication has that frequency spectrum saturation and communication bandwidth are limited,
It is difficult to meet the high-speed transfer demand of mass data, more cannot achieve aircraft itself magnanimity flying quality (single rack aircraft
10GB/s magnitudes) real-time Transmission.
Therefore, also occur now some using laser communication link come carry out satellite and earth station communication communication system
System, laser space communication has a clear superiority, such as high data rate, large capacity and high confidentiality.But laser
Beam divergence angle is relatively narrow, and a general laser beam other laser communication terminals can only be communicated with one；Current one is defended
It is typically provided with a laser communication terminal in star, cannot achieve a satellite while being multiple laser communication terminal services,
Realization synchronization is multiple laser communication terminal services, can only be realized by way of emitting multi-satellite at present, this kind of side
Formula cost is too high so that the possibility of realization is smaller.
Invention content
The present invention provides a kind of onboard system of laser beam communications satellite, and main purpose is to realize lower cost similarly hereinafter for the moment
It carves a satellite and provides service for multiple laser communication terminals.
Technical solution is used by the present invention solves above-mentioned technical problem：
A kind of onboard system of laser beam communications satellite, including：
Laser communication terminal and electric cabinet；
The electric cabinet is used for the power supply of laser communication terminal, provides observing and controlling instruction and information flow；
The laser communication terminal includes at least two Space laser communications terminals and multiple satellite-ground laser communication terminals；
At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；
The multiple satellite-ground laser communication terminal is used to carry out two-way laser communication with earth station system, aircraft；
The scanning range of each satellite-ground laser communication terminal is less than the subtended angle over the ground of satellite, the multiple star ground laser
The subtended angle over the ground of satellite where the scanning range that communication terminal is collectively formed covers it.
Further, the multiple satellite-ground laser communication terminal is arranged in scheduled communication array, and adjacent star
Scanning range is overlapped between laser communication terminal.
Further, the scanning range size being overlapped between the multiple satellite-ground laser communication terminal is identical or different.
Further, the scanning range being overlapped between adjacent satellite-ground laser communication terminal is the 1/2 of its scanning range.
Further, the multiple satellite-ground laser communication terminal is arranged in scheduled communication array, and adjacent star
The scanning range of laser communication terminal is mutually spliced.
Further, satellite where the scanning range that the satellite-ground laser communication terminal of predetermined quantity is mutually spliced covers it
Over the ground.
Further, the matrix shape that the scheduled communication array is n × n arranges, and n is the natural number more than 2.
Further, the multiple satellite-ground laser communication terminal is set on the mounting surface of satellite.
Further, the mounting surface is spherical convex surface or spherical concave surface.
Further, the angle being spaced between satellite-ground laser communication terminal adjacent on the mounting surface is identical, and every
The axial direction of the cone angle of the scanning range of a satellite-ground laser communication terminal is the radial direction of its installed position on mounting surface.
Compared with prior art, the present invention is used for the onboard system of laser beam communications satellite, may be implemented in satellite, aircraft
And communicated using laser communication link between earth station, it is realized between satellite and aircraft instead of conventionally by microwave
Communication, has evaded the problem of radio-frequency spectrum control.In addition, since laser communication has transmission rate fast (more than 1Gbps), band
Roomy, information capacity is big, is conducive to solve aircraft, the especially requirement of airline carriers of passengers mass data transmission.And the spaceborne system
System is provided with multiple satellite-ground laser communication terminals, and the scanning range that the multiple satellite-ground laser communication terminal is collectively formed covers it
The subtended angle over the ground of place satellite, multiple satellite-ground laser communication terminal can simultaneously with corresponding number and earth station, aircraft into
The satellite-ground laser communication terminal of row two-way laser communication so that satellite synchronization can be multiple laser communication terminals into
Row service, greatly reduces the cost of serving of laser communication terminal.
Description of the drawings
Fig. 1 is the schematic diagram of the onboard system of the laser communication system satellite of the embodiment of the present invention；.
Fig. 2 is the schematic diagram of the satellite subtended angle over the ground of the embodiment of the present invention；
Fig. 3 is that the scheduled communication array of multiple satellite-ground laser communication terminals of the embodiment of the present invention arranges schematic diagram；
Fig. 4 is the multiple satellite-ground laser communication terminal arrangement schematic diagrames of another kind of the embodiment of the present invention；
Fig. 5 is the schematic diagram of another angle of multiple satellite-ground laser communication terminal arrangements in Fig. 4.
Fig. 6 is the multiple satellite-ground laser communication terminal arrangement schematic diagrames of another kind of the embodiment of the present invention.
Specific implementation mode
Below in conjunction with attached drawing embodiment, present invention is further described in detail.
As shown in Figure 1, the onboard system of laser beam communications satellite includes electric cabinet 10 and laser communication terminal 20.Electric cabinet 10
For giving the power supply of laser communication terminal, providing observing and controlling instruction and information flow.The laser communication terminal of laser communication terminal 20 includes
Two kinds, one kind is Space laser communications terminal 201, and another kind is satellite-ground laser communication terminal 202.
Wherein, the Space laser communications terminal 201 at least two, for whole with the Space laser communications on other satellites
End is communicated, to realize intersatellite laser communication.For example, can will be between the passing of satelline star in same orbital plane
Laser communication terminal is in turn connected to form a satellite communication network, or can also be the passing of satelline star in different orbital planes
Between laser communication terminal be interconnected to form a netted satellite communication network.
Satellite-ground laser communication terminal 202 be it is multiple, for simultaneously with the aircraft of the corresponding number in satellite coverage,
Laser communication terminal on earth station system is communicated.The scanning range of each satellite-ground laser communication terminal is less than satellite
Subtended angle over the ground, the scanning range that the multiple satellite-ground laser communication terminal is collectively formed covers opening over the ground for satellite where it
Angle.
Therefore, it is based on foregoing description, the passing of satelline Space laser communications terminal in the above-mentioned same orbital plane connects successively
It connects after forming a satellite communication network, as long as on the satellite-ground laser communication terminal on one of satellite and earth station system
Laser communication terminal is in communication with each other, you can realizes the satellite in entire orbital plane and the two-way communication of earth station.And the track
All satellites on face can be communicated by satellite-ground laser communication terminal with the laser communication terminal in aircraft, is used for
To be equipped with aircraft aircraft provide network service, and for by itself mass data of aircraft by being passed under network
To earth station.
In the embodiment of the present invention, it is used for the onboard system of laser beam communications satellite, may be implemented on satellite, aircraft and ground
It is communicated using laser communication link between the station of face, instead of the communication realized conventionally by microwave between satellite and aircraft,
The problem of radio-frequency spectrum control is evaded.In addition, since laser communication has transmission rate fast (more than 1Gbps), with roomy,
Information capacity is big, is conducive to solve aircraft, the especially requirement of airline carriers of passengers mass data transmission.And the onboard system is arranged
Multiple satellite-ground laser communication terminals, scanning range that the multiple satellite-ground laser communication terminal is collectively formed are defended where covering it
The subtended angle over the ground of star, multiple satellite-ground laser communication terminal can carry out with corresponding number with earth station, aircraft two-way simultaneously
The satellite-ground laser communication terminal of laser communication so that a satellite synchronization can be that multiple laser communication terminals are taken
Business, greatly reduces the cost of serving of laser communication terminal.
Number of satellites in extraterrestrial satellite orbit is m, which surrounds a circumterrestrial circle, and covers
Cover the range of this circle of the earth.As shown in Fig. 2, the radius where the extraterrestrial satellite orbit face is r, and satellite distance
The distance of the earth is h, and h can be 1000km-5000km, and the number of satellite is m, and subtended angle size is cone angle to each satellite over the ground
A, subtended angle is using satellite and earth center as a symmetrical cone angle in axle center to the satellite over the ground.In order to make in each orbital plane
The number of satellites of setting is minimum, i.e., the subtended angle over the ground of each satellite is maximum, the satellite outermost of subtended angle and earth surface phase over the ground
It cuts, i.e. the A=2arccos (r/r+h).Such as when the distance of the orbital distance earth of the satellite is 1000km, then the satellite
Subtended angle size to earth station is 120 degree of cone angle.
Due on each satellite satellite-ground laser communication terminal have it is multiple, what satellite-ground laser communication terminal can scan
Range is bigger, it is meant that the scanning angle of the satellite-ground laser communication terminal is bigger, then realize the holder of angle scanning volume and
Weight is also all bigger.Due to satellite launch cost with satellite weight the exponential increase that is added to, therefore each star communicate
The increase of the weight of terminal has also resulted in the increase of satellite launch cost.As such, it can be that multiple satellite-ground laser communication terminals
The range that can be scanned is both less than the subtended angle over the ground of satellite, and then the scanning range of adjacent satellite-ground laser communication terminal being capable of phase
It is mutually spliced to form the scanning range of an entirety, which needs the subtended angle over the ground more than or equal to the satellite, that is, including should
The subtended angle over the ground of satellite.And in order to which multiple laser communication terminals can be communicated simultaneously in the subtended angle over the ground of satellite, then one
Multiple laser communication terminals are provided in fixed coverage area to be scanned.
Therefore, in order to reduce the cost and at the same time ensureing the aircraft etc. for being loaded with laser communication terminal of satellite communications services
The number of mobile subscriber, an embodiment of the present invention provides a kind of arrangement modes of multiple satellite-ground laser communication terminals, such as Fig. 3 institutes
To show, the multiple satellite-ground laser communication terminal is arranged in scheduled communication array, and adjacent satellite-ground laser communication terminal
Between scanning range it is overlapped.Wherein, it is described it is scheduled communication array be n × n matrix shape arrange, n be more than 2 from
So number.And it is spaced setting, the scanning range size of each satellite-ground laser communication terminal between each satellite-ground laser communication terminal
It is using the line of the satellite and earth center as a cone angle of axis, B for cone angle B, cone angle B<A, and adjacent star swash
The scanning range of optical communication terminal is overlapped, the scanning range size phase being overlapped between the multiple satellite-ground laser communication terminal
Same or different, specific it is not limited by the embodiments of the present invention.And those skilled in the art also are understood that, should
Scheduled communication array can also be other arrangement modes, and the interval between multiple satellite-ground laser communication terminals can be identical
Can be different, can be assume diamond in shape, be round, rectangular or other arrays arrange.
For example, as shown in figure 3, it is adjacent equidistantly between each satellite-ground laser communication terminal between be overlapped B/2 angles, example
Be located at the satellite-ground laser communication terminal of each centre in such as figure, around there are four other equidistant satellite-ground laser communication terminals
Scanning range half Chong Die with its scanning range, and with intermediate star laser is logical for the laser communication terminal of four additional farther out
Scanning range between letter terminal is overlapped, but is not necessarily overlapped 1/2.I.e. in the range of every B angle, share
9 satellite-ground laser communication terminals can cover the range, i.e., in B angles, which can be used to service 9 ends simultaneously
End.If the array of satellite-ground laser communication terminal is n × n, n is natural number, then satellite-ground laser communication terminal all on the satellite
The angle of the range collectively covered should be B × (1+n)/2, which should be equal to A, or be more than A.Certainly in all stars
When the range that ground laser communication terminal is collectively covered is identical as the subtended angle to earth station of the satellite, the best of resource is just formed
Rationally utilize.
Certain those skilled in the art also are understood that laser is logical adjacent star can also be arranged by above-mentioned principle
The angle of the range not of uniform size for being set to half, that is, being overlapped of scanning range overlapping between letter terminal needs not be equal to B/2, this
For sample i.e. in the range of every B angles, the change for the laser communication terminal number that satellite can communicate simultaneously is more or becomes smaller.Or phase
Adjacent star overlapping range between laser head communication terminal can be all identical, can also part it is identical, can also be entirely different,
As long as the cone angle over the ground that the angle summation that all satellite-ground laser communication terminals can scan is covered for the satellite.
It as an embodiment of the present invention, should as shown in figure 3, the cone angle for the preset range that satellite is covered is 120 degree
Satellite-ground laser communication terminal array on satellite is 7 × 7, and the range cone angle that each satellite-ground laser communication terminal can scan is
30 degree, and the angle of overlapping range is 15 degree, and therefore, the entire scope that multiple satellite-ground laser communication terminal can scan is
120 degree.Therefore, in the range of each 30 degree, the range can be scanned by sharing 9 satellite-ground laser communication terminals, i.e., at this
In the range of 30 degree of angles in satellite coverage, the satellite can simultaneously be loaded with laser communication terminal with 9 aircraft
Equal mobile subscribers carry out laser communication.And those skilled in the art are from above-mentioned principle it is also to be understood that each star
The scanning angle of laser communication terminal can also be more than 30 degree, or be less than 30 degree.
For example, the cone angle for the preset range that satellite is covered is 120 degree, the scanning angle of each satellite-ground laser communication terminal
Be 40 degree, and the scanning range of adjacent laser communication terminal is laminated in 20 degree, then with only needing 5 × 5 stars of arrangement laser
The scanning of 120 degree of the preset range of satellite can be realized in communication terminal.And in the range of 40 degree of sizes, it may be implemented 9 and swash
It is communicated while optical communication terminal.
For the scanning angle for keeping satellite-ground laser communication terminal array shape integral, as shown in Figure 4,5, for the star swash
Another predetermined communication array arrangement mode of optical communication terminal, the satellite-ground laser communication terminal array are set on a mounting surface, should
Mounting surface is a spherical convex surface, which has a centre of sphere, relative to the centre of sphere between adjacent satellite-ground laser communication terminal
Interval angle it is identical.And the axial direction of the scanning angle of each satellite-ground laser communication terminal is its installation on mounting surface
Radial direction at position ensures that the range scanned between adjacent satellite-ground laser communication terminal also has the model of overlapping and overlapping in this way
It encloses identical.Those skilled in the art also are understood that the mounting surface may be with spherical concave surface.
Also, those skilled in the art also are understood that, the scanning range between adjacent satellite-ground laser communication terminal
It can not also be overlapped, as long as having multiple satellite-ground laser communication terminal alignments to be scanned in same range can also realize at this
Multiple terminals in range communicate simultaneously, the cone angle B of the scanning range of satellite-ground laser communication terminal<A, if the star laser it is logical
The scanning range of letter terminal is spliced to form the predetermined scanning range of the satellite jointly.Multiple satellite-ground laser communication terminal
Scanning range can be the same or different.
Such setting so that satellite can provide most and most effective laser communication clothes in the range of its covering
Business, and the satellite-ground laser communication terminal being arranged on satellite will not excessively in turn result in increase and the launch cost of satellite weight
Increase, effectively control cost and efficiency of service and requirement can be improved.
In order to reduce the cost and at the same time ensureing that aircraft for being loaded with laser communication terminal of satellite communications services etc. is mobile
The number of user, an embodiment of the present invention provides a kind of arrangement modes of multiple satellite-ground laser communication terminals, as shown in fig. 6, institute
It states multiple satellite-ground laser communication terminals to arrange in scheduled communication array, and the scanning model of adjacent satellite-ground laser communication terminal
Enclose mutual splicing.Satellite opens over the ground where the scanning range that the satellite-ground laser communication terminal of predetermined quantity is mutually spliced covers it
Angle.The description as described in mutually splicing can refer to the description of overlapping embodiment, unlike each satellite-ground laser communication terminal it
Between arrangement interval become larger so that the scanning angle of two adjacent satellite-ground laser communication terminals is not overlapped.Specifically, of the invention
Embodiment will not be described in great detail herein.
In addition, the multiple satellite-ground laser communication terminal mutually spliced can also be arranged in the spherical convex surface set on satellite
On, the angle being spaced between adjacent satellite-ground laser communication terminal on the mounting surface is identical, and each satellite-ground laser communication
The axial direction of the cone angle of the scanning range of terminal is the radial direction of its installed position on mounting surface.
The embodiment of the present invention may be implemented to be led to using laser communication link between satellite, aircraft and earth station
Letter has evaded the problem of radio-frequency spectrum control instead of the communication realized conventionally by microwave between satellite and aircraft.Separately
Outside, since laser communication has transmission rate fast (more than 1Gbps), with roomy, information capacity is big, is conducive to solve aircraft, spy
It is not the requirement of airline carriers of passengers mass data transmission.And the onboard system is provided with multiple satellite-ground laser communication terminals, and it is described
The scanning range that multiple satellite-ground laser communication terminals are collectively formed covers the subtended angle over the ground of satellite where it, multiple star ground laser
Communication terminal can simultaneously with corresponding number and earth station, aircraft carry out two-way laser communication satellite-ground laser communication terminal,
Enable a satellite synchronization to be that multiple laser communication terminals are serviced, greatly reduces the clothes of laser communication terminal
Business cost.
Although the preferred embodiment of the present invention described in detail above, it is to be clearly understood that for this field
Technical staff for, the invention may be variously modified and varied.Appoint made by all within the spirits and principles of the present invention
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of onboard system of laser beam communications satellite, which is characterized in that including：
Laser communication terminal and electric cabinet；
The electric cabinet is used for the power supply of laser communication terminal, provides observing and controlling instruction and information flow；
The laser communication terminal includes at least two Space laser communications terminals and multiple satellite-ground laser communication terminals；
At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；
The multiple satellite-ground laser communication terminal is led to for carrying out two-way laser with the earth station of corresponding number, aircraft simultaneously
Letter；
The scanning range of the satellite-ground laser communication terminal is less than the subtended angle over the ground of satellite, the multiple satellite-ground laser communication terminal
The subtended angle over the ground of satellite where the scanning range being collectively formed covers it.
2. the onboard system of laser beam communications satellite as described in claim 1, which is characterized in that
The multiple satellite-ground laser communication terminal is arranged in scheduled communication array, and adjacent satellite-ground laser communication terminal
Between scanning range it is overlapped.
3. the onboard system of laser beam communications satellite as claimed in claim 2, it is characterised in that：
The scanning range size being overlapped between the multiple satellite-ground laser communication terminal is identical or different.
4. the onboard system of laser beam communications satellite as claimed in claim 3, it is characterised in that：
The scanning range being overlapped between adjacent satellite-ground laser communication terminal is the 1/2 of its scanning range.
5. the onboard system of laser beam communications satellite as described in claim 1, it is characterised in that：
The multiple satellite-ground laser communication terminal is arranged in scheduled communication array, and adjacent satellite-ground laser communication terminal
Scanning range is mutually spliced.
6. the onboard system of laser beam communications satellite as claimed in claim 5, it is characterised in that：
The subtended angle over the ground of satellite where the scanning range that the satellite-ground laser communication terminal of predetermined quantity is mutually spliced covers it.
7. the onboard system of the laser beam communications satellite as described in any one of claim 2-6, it is characterised in that：
The matrix shape that the scheduled communication array is n × n arranges, and n is the natural number more than 2.
8. the onboard system of laser beam communications satellite as claimed in claim 7, it is characterised in that：
The multiple satellite-ground laser communication terminal is set on the mounting surface of satellite.
9. the onboard system of laser beam communications satellite as claimed in claim 8, it is characterised in that：
The mounting surface is spherical convex surface or spherical concave surface.
10. the onboard system of laser beam communications satellite as claimed in claim 9, it is characterised in that：It is adjacent on the mounting surface
The angle being spaced between satellite-ground laser communication terminal is identical, and the cone angle of the scanning range of each satellite-ground laser communication terminal
Axial is the radial direction of its installed position on mounting surface.
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| CN201810362282.8A CN108347279A (en) | 2018-04-20 | 2018-04-20 | A kind of onboard system of laser beam communications satellite |
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| CN201810362282.8A CN108347279A (en) | 2018-04-20 | 2018-04-20 | A kind of onboard system of laser beam communications satellite |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413590A (en) * | 2011-08-25 | 2012-04-11 | 西安空间无线电技术研究所 | Global satellite communication system and method |
| US20130242864A1 (en) * | 2012-03-16 | 2013-09-19 | Airbus Operations (Sas) | Method and system for transmitting data in a network of aircraft in flight |
| WO2017083406A1 (en) * | 2015-11-10 | 2017-05-18 | Matternet, Inc. | Methods and systems for transportation using unmanned aerial vehicles |
| CN107707297A (en) * | 2017-11-03 | 2018-02-16 | 潘运滨 | A kind of airborne laser communication system and its communication means |
-
2018
- 2018-04-20 CN CN201810362282.8A patent/CN108347279A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413590A (en) * | 2011-08-25 | 2012-04-11 | 西安空间无线电技术研究所 | Global satellite communication system and method |
| US20130242864A1 (en) * | 2012-03-16 | 2013-09-19 | Airbus Operations (Sas) | Method and system for transmitting data in a network of aircraft in flight |
| WO2017083406A1 (en) * | 2015-11-10 | 2017-05-18 | Matternet, Inc. | Methods and systems for transportation using unmanned aerial vehicles |
| CN107707297A (en) * | 2017-11-03 | 2018-02-16 | 潘运滨 | A kind of airborne laser communication system and its communication means |
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