CN108540209A - A kind of onboard system of laser beam communications satellite - Google Patents
A kind of onboard system of laser beam communications satellite Download PDFInfo
- Publication number
- CN108540209A CN108540209A CN201810362868.4A CN201810362868A CN108540209A CN 108540209 A CN108540209 A CN 108540209A CN 201810362868 A CN201810362868 A CN 201810362868A CN 108540209 A CN108540209 A CN 108540209A
- Authority
- CN
- China
- Prior art keywords
- satellite
- communication terminal
- laser communication
- aircraft
- laser
- 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
- 238000004891 communication Methods 0.000 title claims abstract description 396
- 239000011159 matrix material Substances 0.000 claims description 11
- 230000003287 optical effect Effects 0.000 claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 4
- 239000010432 diamond Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000001228 spectrum Methods 0.000 description 6
- 239000000969 carrier Substances 0.000 description 5
- 241000220300 Eupsilia transversa Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010408 sweeping Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- 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
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.Main technical schemes are the onboard system, 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, multiple satellite vehicles laser communication terminals and ground satellite station laser communication terminal；At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；The multiple satellite vehicles laser communication terminal with the aircraft of corresponding number for carrying out two-way laser communication simultaneously；The ground satellite station laser communication terminal is used to carry out two-way laser communication with earth station.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, although laser space communication has a clear superiority, such as with high data rate, large capacity and high confidentiality etc. are special
Property.But the beam divergence angle of laser is relatively narrow, a general laser beam other laser communication terminals can only be led to one
Letter；It is typically provided with a laser communication terminal in a current satellite, to realize that synchronization, satellite are multiple laser communications
Terminal service can only realize that this kind of mode cost is high by way of emitting multi-satellite.
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, multiple satellites-aircraft laser communication
Terminal and satellite-earth station's laser communication terminal；
At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；
The multiple satellite-aircraft laser communication terminal with the aircraft of corresponding number for carrying out two-way laser simultaneously
Communication；
The satellite-earth station's laser communication terminal is used to carry out two-way laser communication with earth station.
Further,
The satellite of the first predetermined quantity-aircraft laser communication is whole in the multiple satellite-aircraft laser communication terminal
The subtended angle over the ground of satellite, satellite-aircraft laser communication terminal of the second predetermined quantity where the scanning range at end covers it
Scanning range be less than satellite subtended angle over the ground；The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser
Communication terminal mixed layout in the satellite where it.
Further,
If first predetermined quantity is more than second predetermined quantity, first predetermined quantity and the second predetermined number
The satellite of amount-aircraft laser communication terminal arbitrary arrangement in the satellite where it；
Or
The satellite of first predetermined quantity-aircraft laser communication terminal is in the satellite where it according to scheduled
Satellite-aircraft laser communication terminal of one communication array arrangement and second predetermined quantity is in the satellite where it
It is arranged in the interstitial site of satellite-aircraft laser communication terminal of first predetermined quantity.
Further,
The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser communication terminal is set to the installation of satellite
On face, the mounting surface is face mounting surface.
Further,
If first predetermined quantity is less than or equal to second predetermined quantity, second predetermined quantity is defended
Star-aircraft laser communication terminal communicates array arrangement and satellite-flight of first predetermined quantity in scheduled second
Device laser communication terminal is arranged in satellite-aircraft laser communication terminal of second predetermined quantity in the satellite where it
Interstitial site.
Further,
Scanning range phase mutual respect between adjacent satellite-aircraft laser communication terminal in second predetermined quantity
It is folded；
Alternatively,
The scanning range of the adjacent satellite of the second predetermined quantity kind-aircraft laser communication terminal is mutually spliced.
Further,
The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser communication terminal is set to the installation of satellite
On face, the mounting surface is spherical convex surface.
Further,
The scanning range of each satellite-aircraft laser communication terminal is less than the subtended angle over the ground of satellite, the multiple
Subtended angle over the ground of satellite, the multiple to defend where the scanning range that satellite-aircraft laser communication terminal is collectively formed covers it
Star-aircraft laser communication terminal is arranged in scheduled third communication array.
Further,
Scanning range is overlapped between adjacent satellite-aircraft laser communication terminal；
Alternatively,
The scanning range of adjacent satellite-aircraft laser communication terminal is mutually spliced.
Further,
The multiple satellite-aircraft laser communication terminal is set on the mounting surface of satellite, and the mounting surface is spherical male
Face or spherical concave surface.
Further,
Second, third described scheduled communication array is the matrix shape arrangement of m × m, and m is the natural number more than 2.
Further,
The subtended angle over the ground of satellite where the scanning range of each satellite-aircraft laser communication terminal covers it.
Further,
The multiple satellite-aircraft laser communication terminal arbitrary arrangement in the satellite where it；
Alternatively,
The multiple satellite-aircraft laser communication terminal is in the satellite where it according to scheduled fourth communication array
Arrangement.
Further,
The multiple satellite-aircraft laser communication terminal is set on the mounting surface of satellite, and the mounting surface is spherical male
Face.
Further,
Described scheduled first, fourth communication array is the matrix shape arrangement of n × n, and n is the natural number more than 2；
Alternatively,
Described scheduled first, fourth communication array is circular array, polygon, square array or diamond shape array.
Compared with prior art, the onboard system of laser beam communications satellite provided by the invention, realize satellite, aircraft with
And communicated using laser communication link between earth station, it is logical between satellite and aircraft instead of being realized conventionally by microwave
Letter, has evaded the problem of radio-frequency spectrum control.In addition, since laser communication has transmission rate fast (more than 1Gbps), bandwidth
Greatly, information capacity is big, is conducive to solve aircraft, the especially requirement of airline carriers of passengers mass data transmission.And in each satellite
In be provided with multiple satellites-aircraft laser communication terminal, the multiple satellite-aircraft laser communication terminal for simultaneously with
The aircraft of corresponding number carries out two-way laser communication so that a satellite synchronization can be that multiple aircraft are taken
Business, greatly reduces the communication service cost of aircraft.
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 a kind of scheduled communication array arrangement of multiple satellites-aircraft laser communication terminal of the embodiment of the present invention
Schematic diagram；
Fig. 4 is the scheduled communication array row of the multiple satellite-aircraft laser communication terminals of another kind of the embodiment of the present invention
List intention；
Fig. 5 is the scheduled communication array row of the multiple satellite-aircraft laser communication terminals of another kind of the embodiment of the present invention
List intention；
Fig. 6 figures are a kind of multiple satellites-aircraft laser communication terminal arrangement schematic diagram of the embodiment of the present invention；
Fig. 7 figures are the multiple satellite-aircraft laser communication terminal arrangement schematic diagrames of another kind of the embodiment of the present invention；
Fig. 8 figures are the multiple satellite-aircraft laser communication terminal arrangement schematic diagrames of another kind of the embodiment of the present invention；
Fig. 9 is the scheduled communication array row of the multiple satellite-aircraft laser communication terminals of another kind of the embodiment of the present invention
List intention；
Figure 10 is the scheduled communication array row of the multiple satellite-aircraft laser communication terminals of another kind of the embodiment of the present invention
List intention；
Figure 11 is the scheduled communication array row of the multiple satellite-aircraft laser communication terminals of another kind of the embodiment of the present invention
List intention.
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 is used for the power supply of laser communication terminal, provides observing and controlling instruction and information flow.
The laser communication terminal of laser communication terminal 20 includes two kinds, and one kind is Space laser communications terminal 201, another
For satellite-aircraft 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-aircraft laser communication terminal 202 is multiple, for while with the corresponding number in satellite coverage
The laser communication terminal of aircraft is communicated.Wherein, the aircraft can be airline carriers of passengers, military aircraft, aerostat or
Person's fixed-wing unmanned plane etc..
203 ends are used to carry out two-way laser communication with earth station eventually for the satellite-earth station's laser communication.
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 the satellite on one of satellite-aircraft laser communication terminal and earth station
Laser communication terminal in system is in communication with each other, you can realizes the satellite in entire orbital plane and the two-way communication of earth station.And
And all satellites in the orbital plane can be whole by the laser communication in satellite-aircraft laser communication terminal and aircraft
End is communicated, for providing network service to the aircraft for being equipped with aircraft, and for by aircraft itself is a large amount of
Data descend into earth station by network.
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 be set in each satellite
Set multiple satellites-aircraft laser communication terminal, the multiple satellite-aircraft laser communication terminal for simultaneously with it is corresponding
The aircraft of quantity carries out two-way laser communication so that a satellite synchronization can be that multiple aircraft are serviced, greatly
The big communication service cost for reducing aircraft.
At this it should be noted that each satellite-aircraft laser communication terminal in communication respectively with an aircraft
Or earth station carries out laser link communication, therefore, when the number of satellite-aircraft laser communication terminal determines that satellite is unified
Between carry out in section laser link communication aircraft and earth station number, it is logical that swashing for laser link communication can be carried out at the same time
Believe the number of terminal.But during specific implementation, the navigation area of each aircraft is different, in order to enable one
A satellite can be aircraft service more as possible, and the embodiment of the present invention is provided with the satellite-of different scanning range in the satel-lite
Aircraft laser communication terminal.It is specifically：
The first, satellite-aircraft laser of the first predetermined quantity in the multiple satellite-aircraft laser communication terminal
Satellite-aircraft laser of the subtended angle over the ground of satellite where the scanning range of communication terminal covers it, the second predetermined quantity is logical
Believe that the scanning range of terminal is less than the subtended angle over the ground of satellite；Satellite-flight of first predetermined quantity and the second predetermined quantity
Device laser communication terminal mixed layout in the satellite where it.
Second, the scanning range of each satellite-aircraft laser communication terminal is less than the subtended angle over the ground of satellite, institute
The subtended angle over the ground of satellite where the scanning range that multiple satellites-aircraft laser communication terminal is collectively formed covers it is stated, it is described
Multiple satellites-aircraft laser communication terminal is arranged in scheduled third communication array.
The third, the scanning range of each satellite-aircraft laser communication terminal covers pair of its place satellite
Ground subtended angle.
Following embodiment will specifically illustrate various specific implementation modes respectively：
Number of satellites in extraterrestrial satellite orbit is n, which surrounds a circumterrestrial circle, and covers
Cover the range of this circle of the earth.As shown in Figure 2.For example, the radius where the orbital plane is r, and apart from the distance of the earth
For h, h can be 1000km-5000km, and the number of satellite is n, and the size of each satellite subtended angle over the ground is cone angle A, the satellite
Subtended angle over the ground, i.e., using the line of satellite and earth center as the symmetrical cone angle in axle center.In order to make to be arranged in each orbital plane
Number of satellites is minimum, i.e., the subtended angle over the ground of each satellite is maximum, and the outermost of subtended angle and earth surface are tangent over the ground for satellite, i.e., should
A=2arccos (r/r+h).Such as when the satellite the orbital distance earth distance be 1000km, then the satellite to earth station
Subtended angle size be 120 degree of cone angle.
As described above, when satellite-flight of the first predetermined quantity in the multiple satellite-aircraft laser communication terminal
The subtended angle over the ground of satellite, satellite-aircraft of the second predetermined quantity where the scanning range of device laser communication terminal covers it
The scanning range of laser communication terminal is less than the subtended angle over the ground of satellite；First predetermined quantity and the second predetermined quantity are defended
Star-aircraft laser communication terminal is in the satellite where it when mixed layout, and the embodiment of the present invention is according to different scanning range
Satellite-aircraft laser communication terminal number, different placement schemes is provided respectively.It is specific as follows：
If scanning range covers the first predetermined number of the satellite-aircraft laser communication terminal of subtended angle over the ground of satellite where it
Amount is more than the second predetermined quantity that scanning range is less than satellite satellite-aircraft laser communication terminal of subtended angle over the ground, then illustrates
Satellite-aircraft laser communication terminal in satellite needs to service the aircraft of more longer distance to go.The embodiment of the present invention
In specific layout, based on the layout of the satellite of the first predetermined quantity-aircraft laser communication terminal.
Wherein, within the scope of the cone angle A that the satellite is covered, satellite-aircraft of the first predetermined quantity on satellite swashs
The size for the range that optical communication terminal can scan is cone angle B, and B >=A.Satellite-aircraft of first predetermined quantity swashs
The size of the scanning range of optical communication terminal, i.e. cone angle, can be the same or different, as long as each scanning range can be covered
The surface sweeping range of lid satellite over the ground.
Further, each due to cone angle B >=A of satellite provided in an embodiment of the present invention-aircraft laser communication terminal
A satellite-aircraft laser communication terminal can be covered with the range that complete independently satellite scans over the ground, therefore the first predetermined quantity
Satellite-aircraft laser communication terminal when being laid out in the satel-lite, can be laid out in any way, the second predetermined quantity
Satellite-aircraft laser communication terminal can also arbitrary placement, as long as do not influence the first predetermined quantity satellite-aircraft swash
The rotation of optical communication terminal.
In order in the limited space of satellite, place relatively large number of satellite-aircraft laser communication terminal, the present invention is real
It applies example in the specific implementation, the laser communication terminal of the first predetermined quantity can be arranged according to scheduled communication array, it is described
Scheduled first communication array can arrange for the matrix shape of n × n, and n is the natural number more than 2；Alternatively, described scheduled
One communication array is circular array, polygon, square array or diamond shape array；Specifically, the embodiment of the present invention to this without
Limitation.
As shown in figure 3, the first communication array is arranged according to the matrix shape of n × n, such as n is 7, in the communication array
The satellite of the satellite of first predetermined quantity-aircraft laser communication terminal 1 and the second predetermined quantity-aircraft laser communication terminal
2 are spacedly distributed.At this it should be noted that when carrying out spaced to multiple satellites-aircraft satellite communication terminal
Wait, other than above-mentioned be spacedly distributed, can be distributed with unequal interval, specifically, the embodiment of the present invention to this without
Limitation, as long as mutual distance does not influence the range of its actual scanning.
In addition, other than above-mentioned arrangement mode, the embodiment of the present invention can also be by the satellite-of first predetermined quantity
Aircraft laser communication terminal makes a reservation in the satellite where it according to scheduled first communication array arrangement and described second
The satellite of quantity-aircraft laser communication terminal is arranged in first predetermined quantity satellite-in the satellite where it flies
The interstitial site of row device laser communication terminal.Specifically, as shown in Figure 4.
Further, it should be noted that the satellite of above-mentioned first predetermined quantity and the second predetermined quantity-aircraft laser is logical
Believe that terminal is mounted on Plane Installation face.
Further, if first predetermined quantity is less than or equal to second predetermined quantity, illustrate to need to service
Aircraft distance to go it is smaller, do not need the prodigious scanning angle over the ground of satellite-aircraft laser communication terminal, then greatly
The scanning range of part satellite-aircraft laser communication terminal is less than the subtended angle over the ground of satellite.Due to satellite launch cost with
The exponential increase that is added to of satellite weight, therefore the increase of the weight of each satellite-aircraft communication terminal, also result in
The increase of satellite launch cost.Therefore, the range of scanning can be less than to the satellite of subtended angle over the ground-aircraft laser communication of satellite
The scanning range for being mutually spliced to form an entirety of terminal, the scanning range need the subtended angle over the ground more than or equal to the satellite,
Include the subtended angle over the ground of the satellite.And it is whole in order to which multiple laser communications can be communicated simultaneously in the subtended angle over the ground of satellite
End, then be provided with multiple laser communication terminals and be scanned in certain coverage area.Therefore as shown in figure 5, by described
The satellite of two predetermined quantities-aircraft laser communication terminal 2 makes a reservation in scheduled second communication array arrangement and described first
The satellite of quantity-aircraft laser communication terminal 1 is arranged in second predetermined quantity satellite-in the satellite where it flies
The interstitial site of row device laser communication terminal.Wherein, the matrix shape that the scheduled second communication array is m × m arranges, m
For the natural number more than 2.
When the satellite of second predetermined quantity-aircraft laser communication terminal communicates array arrangement in scheduled second,
Scanning range can be overlapped between adjacent satellite-aircraft laser communication terminal.And each satellite-aircraft swashs
Setting is spaced between optical communication terminal, the scanning range size of each satellite-aircraft laser communication terminal is cone angle B, the cone
Angle B is using the line of the satellite and earth center as a cone angle of axis, B<A, and adjacent satellite-aircraft laser communication
The scanning range of terminal is overlapped, the scanning range size being overlapped between the multiple satellite-aircraft laser communication terminal
Identical or different, specific it is not limited by the embodiments of the present invention.
Such as overlapping B/2 angles share 9 satellites-aircraft laser communication terminal then in the range of every B angle
The range can be covered simultaneously, i.e., in B angles, which can be used to service 9 terminals simultaneously.As satellite-aircraft swashs
The array of optical communication terminal is n × n, and n is natural number, then satellite all on the satellite-aircraft laser communication terminal is total to
Angle with the range of covering should be B × (1+n)/2, which should be equal to A, or be more than or equal to A degree.Certainly all
When the range that satellite-aircraft laser communication terminal is collectively covered is identical as the subtended angle to earth station of the satellite, just formed
The best reasonable utilization of resource.
Certain those skilled in the art also are understood that by above-mentioned principle, and adjacent satellite-flight can also be arranged
The angle of the range not of uniform size for being set to half, that is, being overlapped of scanning range overlapping between device laser communication terminal is not necessarily etc.
In B/2, so 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
It is small.Or the overlapping range between adjacent satellite-aircraft laser head communication terminal can be all identical, it can also part phase
Together, can also be entirely different, as long as the angle summation that all satellites-aircraft laser communication terminal can scan is the satellite
The cone angle over the ground covered.
It as an embodiment of the present invention, should as shown in fig. 6, the cone angle for the preset range that satellite is covered is 120 degree
Satellite-aircraft laser communication terminal array on satellite is 7 × 7, and each satellite-aircraft laser communication terminal can be swept
The range cone angle retouched is 30 degree, and the angle of overlapping range is 15 degree, and therefore, multiple satellite-aircraft laser communication is whole
It is 120 degree to hold the entire scope that can be scanned.Therefore, in the range of each 30 degree, it is logical to share 9 satellites-aircraft laser
In the range of letter terminal can scan the range, i.e. 30 in the satellite coverage degree angle, which can be simultaneously
The mobile subscribers such as the aircraft for being loaded with laser communication terminal with 9 carry out laser communication.And those skilled in the art are from above-mentioned
Principle in it is also to be understood that each satellite-aircraft laser communication terminal scanning angle can also be more than 30 degree, or
Less than 30 degree.
For example, the cone angle for the preset range that satellite is covered is 120 degree, each satellite-aircraft laser communication terminal
Scanning angle is 40 degree, and the scanning range of adjacent laser communication terminal is laminated in 20 degree, then only needs arrangement 5 × 5
The scanning of 120 degree of the preset range of satellite can be realized in satellite-aircraft laser communication terminal.And in the range of 40 degree of sizes
It is interior, it may be implemented to communicate while 9 laser communication terminals.
In order to make satellite-integral scanning angle of aircraft laser communication terminal array shape, as shown in fig. 7, this is defended
Star-aircraft laser communication terminal array is set on a mounting surface, which is a spherical convex surface, adjacent satellite-flight
The angle being spaced between device laser communication terminal is identical.And the scanning angle of each satellite-aircraft laser communication terminal
Axial is the radial direction of its installed position on mounting surface, ensure so adjacent satellite-aircraft laser communication terminal it
Between the range that scans also have the range of overlapping and overlapping identical.
Also, those skilled in the art also are understood that, sweeping between adjacent satellite-aircraft laser communication terminal
Retouching range can not also be overlapped, as long as there is multiple satellites-aircraft laser communication terminal alignment to be scanned in same range
It can also realize multiple terminals in the range while communicate, the cone of the scanning range of satellite-aircraft laser communication terminal
Angle B<A, as long as the predetermined scanning range of the satellite is collectively formed i.e. in the scanning range of the satellite-aircraft laser communication terminal
It can.And the scanning range of multiple satellite-aircraft laser communication terminal 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 being arranged on satellite-aircraft laser communication terminal will not excessively in turn result in satellite weight increase and
The increase of launch cost, being capable of effectively control cost and raising efficiency of service and requirement.
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 mode of multiple satellites-aircraft laser communication terminal, such as Fig. 8
Shown, satellite-aircraft laser communication terminal of second predetermined quantity is arranged in scheduled communication array, and adjacent
The scanning range of satellite-aircraft laser communication terminal is mutually spliced.The satellite of predetermined quantity-aircraft laser communication terminal phase
The subtended angle over the ground of satellite where the scanning range mutually spliced covers it.The description as described in mutually splicing can refer to overlapping and implement
The description of example, the difference is that the arrangement interval between each satellite-aircraft laser communication terminal becomes larger so that adjacent two
The scanning angle of satellite-aircraft laser communication terminal is not overlapped.Specifically, the embodiment of the present invention will not be described in great detail herein.
In addition, the multiple satellite mutually spliced-aircraft laser communication terminal can also be arranged set on satellite
In spherical convex surface, the angle being spaced between adjacent satellite-aircraft laser communication terminal on the mounting surface is identical, and every
The axial direction of the cone angle of the scanning range of a satellite-aircraft laser communication terminal is the diameter of its installed position on mounting surface
To.
The present invention also provides following embodiments, when the scanning range of each satellite-aircraft laser communication terminal
Less than the subtended angle over the ground of satellite, the scanning range that the multiple satellite-aircraft laser communication terminal is collectively formed covers its institute
In the subtended angle over the ground of satellite, the multiple satellite-aircraft laser communication terminal is arranged in scheduled third communication array.
At this it should be noted that due on each satellite satellite-aircraft laser communication terminal have it is multiple, defend
The range that star-aircraft laser communication terminal can scan is bigger, it is meant that the scanning of the satellite-aircraft laser communication terminal
Angle is bigger, then realizes that the volume and weight of the holder of angle scanning is also all bigger.Since the cost of satellite launch is with satellite
Weight is added to exponential increase, therefore the increase of the weight of each satellite-aircraft communication terminal, has also resulted in satellite hair
Penetrate the increase of cost.As such, it can be that the range that multiple satellites-aircraft laser communication terminal can scan is both less than satellite
Subtended angle over the ground, then the scanning range of adjacent satellite-aircraft laser communication terminal can mutually be spliced to form an entirety
Scanning range, which needs the subtended angle over the ground more than or equal to the satellite, that is, includes the subtended angle over the ground of the satellite.And it is
Multiple laser communication terminals can be communicated simultaneously in the subtended angle over the ground of satellite, be then provided in certain coverage area
Multiple laser communication terminals are scanned.
Therefore, in order to reduce cost and at the same time ensure satellite communications services the aircraft etc. for being loaded with laser communication terminal
The number of mobile subscriber, an embodiment of the present invention provides a kind of arrangement modes of multiple satellites-aircraft laser communication terminal, such as
Shown in Fig. 3, the multiple satellite-aircraft laser communication terminal is arranged in scheduled third communication array, and adjacent is defended
Scanning range is overlapped between star-aircraft laser communication terminal.Wherein, as shown in figure 9, the scheduled communication array
It is arranged for the matrix shape of m × m, m is the natural number more than 2.And it is spaced between each satellite-aircraft laser communication terminal
The scanning range size of setting, each satellite-aircraft laser communication terminal is cone angle B, and cone angle B is with the satellite and ground
The line of ball center is a cone angle of axis, B<A, and the scanning range of adjacent satellite-aircraft laser communication terminal is mutual
It is overlapped, the scanning range size being overlapped between the multiple satellite-aircraft laser communication terminal is identical or different, specifically
It is not limited by the embodiments of the present invention.
Such as overlapping B/2 angles share 9 satellites-aircraft laser communication terminal then in the range of every B angle
The range can be covered simultaneously, i.e., in B angles, which can be used to service 9 terminals simultaneously.As satellite-aircraft swashs
The array of optical communication terminal is m × m, and m is natural number, then satellite all on the satellite-aircraft laser communication terminal is total to
Angle with the range of covering should be B × (1+m)/2, which should be equal to A, or be more than or equal to A degree.Certainly all
When the range that satellite-aircraft laser communication terminal is collectively covered is identical as the subtended angle to earth station of the satellite, just formed
The best reasonable utilization of resource.
Certain those skilled in the art also are understood that by above-mentioned principle, and adjacent satellite-flight can also be arranged
The angle of the range not of uniform size for being set to half, that is, being overlapped of scanning range overlapping between device laser communication terminal is not necessarily etc.
In B/2, so 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
It is small.Or the overlapping range between adjacent satellite-aircraft laser head communication terminal can be all identical, it can also part phase
Together, can also be entirely different, as long as the angle summation that all satellites-aircraft laser communication terminal can scan is the satellite
The cone angle over the ground covered.
It as an embodiment of the present invention, should as shown in fig. 6, the cone angle for the preset range that satellite is covered is 120 degree
Satellite-aircraft laser communication terminal array on satellite is 7 × 7, and each satellite-aircraft laser communication terminal can be swept
The range cone angle retouched is 30 degree, and the angle of overlapping range is 15 degree, and therefore, multiple satellite-aircraft laser communication is whole
It is 120 degree to hold the entire scope that can be scanned.Therefore, in the range of each 30 degree, it is logical to share 9 satellites-aircraft laser
In the range of letter terminal can scan the range, i.e. 30 in the satellite coverage degree angle, which can be simultaneously
The mobile subscribers such as the aircraft for being loaded with laser communication terminal with 9 carry out laser communication.And those skilled in the art are from above-mentioned
Principle in it is also to be understood that each satellite-aircraft laser communication terminal scanning angle can also be more than 30 degree, or
Less than 30 degree.
For example, the cone angle for the preset range that satellite is covered is 120 degree, each satellite-aircraft laser communication terminal
Scanning angle is 40 degree, and the scanning range of adjacent laser communication terminal is laminated in 20 degree, then only needs arrangement 5 × 5
The scanning of 120 degree of the preset range of satellite can be realized in satellite-aircraft laser communication terminal.And in the range of 40 degree of sizes
It is interior, it may be implemented to communicate while 9 laser communication terminals.
In order to make satellite-integral scanning angle of aircraft laser communication terminal array shape, as shown in fig. 7, this is defended
Star-aircraft laser communication terminal array is set on a mounting surface, which is a spherical convex surface, adjacent satellite-flight
The angle being spaced between device laser communication terminal is identical.And the scanning angle of each satellite-aircraft laser communication terminal
Axial is the radial direction of its installed position on mounting surface, ensure so adjacent satellite-aircraft laser communication terminal it
Between the range that scans also have the range of overlapping and overlapping identical.
Also, those skilled in the art also are understood that, sweeping between adjacent satellite-aircraft laser communication terminal
Retouching range can not also be overlapped, as long as there is multiple satellites-aircraft laser communication terminal alignment to be scanned in same range
It can also realize multiple terminals in the range while communicate, the cone of the scanning range of satellite-aircraft laser communication terminal
Angle B<A, as long as the predetermined scanning range of the satellite is collectively formed i.e. in the scanning range of the satellite-aircraft laser communication terminal
It can.And the scanning range of multiple satellite-aircraft laser communication terminal 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 being arranged on satellite-aircraft laser communication terminal will not excessively in turn result in satellite weight increase and
The increase of launch cost, being capable of effectively control cost and raising efficiency of service and requirement.
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 mode of multiple satellites-aircraft laser communication terminal, such as Fig. 8
Shown, the multiple satellite-aircraft laser communication terminal is arranged in scheduled communication array, and adjacent satellite-flight
The scanning range of device laser communication terminal is mutually spliced.The satellite of predetermined quantity-aircraft laser communication terminal is mutually spliced
The subtended angle over the ground of satellite where scanning range covers it.The description as described in mutually splicing can refer to the description of overlapping embodiment,
The difference is that the arrangement interval between each satellite-aircraft laser communication terminal becomes larger so that two adjacent satellite-flights
The scanning angle of device laser communication terminal is not overlapped.Specifically, the embodiment of the present invention will not be described in great detail herein.
In addition, the multiple satellite mutually spliced-aircraft laser communication terminal can also be arranged set on satellite
In spherical convex surface, the angle being spaced between adjacent satellite-aircraft laser communication terminal on the mounting surface is identical, and every
The axial direction of the cone angle of the scanning range of a satellite-aircraft laser communication terminal is the diameter of its installed position on mounting surface
To.And those skilled in the art also are understood that, similarly, which may be spherical concave surface.
In the embodiment of the present invention, the onboard system of laser beam communications satellite is provided with multiple satellites-aircraft laser communication end
End, the multiple satellite-aircraft laser communication terminal are two-way sharp for being carried out simultaneously with the earth station of corresponding number, aircraft
Optic communication so that a satellite synchronization can be that multiple laser communication terminals are serviced, and greatly reduce laser communication
The cost of serving of terminal.Also, in the present invention, each satellite-aircraft laser communication terminal can scan where it
The subtended angle over the ground of satellite so that the flexibility that multiple laser communication terminals use is more preferable, and earth station, aircraft can be allowed better
Capture the laser communication terminal.
And the bright embodiment of the present invention may be implemented to use laser communication link between satellite, aircraft and earth station
It is communicated, instead of the communication realized conventionally by microwave between satellite and aircraft, has evaded the difficulty of radio-frequency spectrum control
Topic.In addition, since laser communication has transmission rate fast (more than 1Gbps), with roomy, information capacity is big, is conducive to solve to fly
The requirement of device, especially airline carriers of passengers mass data transmission.
The present invention also provides following embodiment, the scanning range of each satellite-aircraft laser communication terminal is equal
The subtended angle over the ground of satellite where covering it.
Cone angle B >=A of satellite provided in an embodiment of the present invention-aircraft laser communication terminal, each satellite-aircraft
Laser communication terminal can be covered with the range that complete independently satellite scans over the ground, therefore multiple satellites-aircraft laser communication is whole
It when end is laid out in the satel-lite, can be laid out in any way, such as can be the square that scheduled communication array is n × n
Battle array shaped formation, n are the natural number more than 2, and it can be non-array to have, and specific it is not limited by the embodiments of the present invention.
In order in the limited space of satellite, place relatively large number of satellite-aircraft laser communication terminal, the present invention is real
It applies example in the specific implementation, preferably arranges multiple laser communication terminals according to scheduled communication array, specifically, such as Figure 10 institutes
Show, multiple laser communication terminals are arranged according to the matrix shape of n × n, such as n is 7, and the multiple satellite-aircraft laser is logical
Letter terminal is spacedly distributed.The multiple satellite-aircraft laser communication terminal is arranged on mounting surface, which is plane
Mounting surface.
It should be noted that when carrying out spaced to multiple satellites-aircraft satellite communication terminal at this, remove
Other than being spacedly distributed for above stating, can be distributed with unequal interval, specifically, the embodiment of the present invention to this without limit
System, as long as mutual distance does not influence the range of its actual scanning.
In addition, it is necessary to explanation, due to as described above, satellite-aircraft laser communication in the embodiment of the present invention
The all standing of the scanning range over the ground of satellite where it may be implemented in each to terminal, therefore swashs to multiple satellite-aircraft
When optical communication terminal is laid out, not necessarily matrix shape arranges, and can also be circular array, polygon, rectangular battle array
The array of row or diamond shape array or other shapes, specifically, it is not limited by the embodiments of the present invention.As shown in figure 11,
By taking polygon matrix laser communication terminal room is not equidistant as an example.
In the embodiment of the present invention, the onboard system of laser beam communications satellite is provided with multiple satellites-aircraft laser communication end
End, the multiple satellite-aircraft laser communication terminal are two-way sharp for being carried out simultaneously with the earth station of corresponding number, aircraft
Optic communication so that a satellite synchronization can be that multiple laser communication terminals are serviced, and greatly reduce laser communication
The cost of serving of terminal.And the bright embodiment of the present invention may be implemented to use laser between satellite, aircraft and earth station
Communication link is communicated, and instead of the communication realized conventionally by microwave between satellite and aircraft, has evaded radio-frequency spectrum
The problem of control.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.
Further, more scanning angle mixing are arranged according to the navigation demand of the aircraft of service in the present invention in the satel-lite
Multiple laser communication terminals of arrangement, allow its satellite to provide service for the aircraft of multiple and different voyages so that operation
Flexibility is more preferable.
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 (15)
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, multiple satellites-aircraft laser communication terminal
And satellite-earth station's laser communication terminal；
At least two Space laser communications terminal is used to carry out two-way laser communication with other satellites；
The multiple satellite-aircraft laser communication terminal is logical for carrying out two-way laser with the aircraft of corresponding number simultaneously
Letter；
The satellite-earth station's laser communication terminal is used to carry out two-way laser communication with earth station.
2. the onboard system of laser beam communications satellite according to claim 1, which is characterized in that
The satellite of first predetermined quantity-aircraft laser communication terminal in the multiple satellite-aircraft laser communication terminal
Subtended angle over the ground of satellite, satellite-aircraft laser communication terminal of the second predetermined quantity are swept where scanning range covers it
Retouch the subtended angle over the ground that range is less than satellite；The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser communication
Terminal mixed layout in the satellite where it.
3. the onboard system of laser beam communications satellite as described in claim 1, which is characterized in that
If first predetermined quantity is more than second predetermined quantity, first predetermined quantity and the second predetermined quantity
Satellite-aircraft laser communication terminal arbitrary arrangement in the satellite where it；
Or
The satellite of first predetermined quantity-aircraft laser communication terminal is logical according to scheduled first in the satellite where it
Satellite-aircraft laser communication terminal of the arrangement of letter array and second predetermined quantity arranges in the satellite where it
In the interstitial site of satellite-aircraft laser communication terminal of first predetermined quantity.
4. the onboard system of laser beam communications satellite according to claim 3, which is characterized in that
The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser communication terminal is set to the mounting surface of satellite
On, the mounting surface is face mounting surface.
5. the onboard system of laser beam communications satellite as claimed in claim 2, which is characterized in that
If first predetermined quantity is less than or equal to second predetermined quantity, the satellite-of second predetermined quantity flies
Satellite-aircraft that row device laser communication terminal communicates array arrangement and first predetermined quantity in scheduled second swashs
Optical communication terminal is arranged in the satellite where it between satellite-aircraft laser communication terminal of second predetermined quantity
Gap position.
6. the onboard system of laser beam communications satellite as claimed in claim 5, which is characterized in that
Scanning range is overlapped between adjacent satellite-aircraft laser communication terminal in second predetermined quantity；
Alternatively,
The scanning range of the adjacent satellite of the second predetermined quantity kind-aircraft laser communication terminal is mutually spliced.
7. the onboard system of laser beam communications satellite as claimed in claim 6, which is characterized in that
The satellite of first predetermined quantity and the second predetermined quantity-aircraft laser communication terminal is set to the mounting surface of satellite
On, the mounting surface is spherical convex surface or spherical concave surface.
8. the onboard system of laser beam communications satellite as described in claim 1, which is characterized in that
The scanning range of each satellite-aircraft laser communication terminal is less than the subtended angle over the ground of satellite, the multiple satellite-
The subtended angle over the ground of satellite where the scanning range that aircraft laser communication terminal is collectively formed covers it, the multiple satellite-fly
Row device laser communication terminal is arranged in scheduled third communication array.
9. the onboard system of laser beam communications satellite as claimed in claim 8, which is characterized in that
Scanning range is overlapped between adjacent satellite-aircraft laser communication terminal；
Alternatively,
The scanning range of adjacent satellite-aircraft laser communication terminal is mutually spliced.
10. the onboard system of laser beam communications satellite as claimed in claim 9, which is characterized in that
The multiple satellite-aircraft laser communication terminal is set on the mounting surface of satellite, and the mounting surface is spherical convex surface.
11. the onboard system of the laser beam communications satellite as described in claim 5 or 10, it is characterised in that：
Second, third described scheduled communication array is the matrix shape arrangement of m × m, and m is the natural number more than 2.
12. the onboard system of laser beam communications satellite as described in claim 1, which is characterized in that
The subtended angle over the ground of satellite where the scanning range of each satellite-aircraft laser communication terminal covers it.
13. the onboard system of laser beam communications satellite according to claim 12, which is characterized in that
The multiple satellite-aircraft laser communication terminal arbitrary arrangement in the satellite where it；
Alternatively,
The multiple satellite-aircraft laser communication terminal is arranged in the satellite where it according to scheduled fourth communication array
Row.
14. the onboard system of laser beam communications satellite as claimed in claim 13, which is characterized in that
The multiple satellite-aircraft laser communication terminal be set to satellite mounting surface on, the mounting surface be spherical convex surface or
Spherical concave surface.
15. the onboard system of the laser beam communications satellite as described in claim 3 or 14, which is characterized in that
Described scheduled first, fourth communication array is the matrix shape arrangement of n × n, and n is the natural number more than 2；
Alternatively,
Described scheduled first, fourth communication array is circular array, polygon, square array or diamond shape array.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362868.4A CN108540209A (en) | 2018-04-20 | 2018-04-20 | A kind of onboard system of laser beam communications satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810362868.4A CN108540209A (en) | 2018-04-20 | 2018-04-20 | A kind of onboard system of laser beam communications satellite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108540209A true CN108540209A (en) | 2018-09-14 |
Family
ID=63478122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810362868.4A Pending CN108540209A (en) | 2018-04-20 | 2018-04-20 | A kind of onboard system of laser beam communications satellite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108540209A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087234A (en) * | 2019-04-28 | 2019-08-02 | 清华大学 | A kind of unmanned plane formation secure communication of network method and system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002051036A1 (en) * | 2000-12-20 | 2002-06-27 | Mitsubishi Denki Kabushiki Kaisha | Communication satellite/land circuits selection communications system |
| CN1658539A (en) * | 2005-01-10 | 2005-08-24 | 中国科学院上海光学精密机械研究所 | Space laser communication motion double-terminal long distance transmission analog device |
| CN1825787A (en) * | 2006-04-03 | 2006-08-30 | 哈尔滨工业大学 | Method for establishing laser link between low orbit safellite and ground station |
| US8848573B1 (en) * | 2010-10-21 | 2014-09-30 | Cisco Technology, Inc. | Bandwidth conservation for multicast traffic in RF downlinks |
| CN105371854A (en) * | 2015-09-18 | 2016-03-02 | 北京航天飞行控制中心 | Spacecraft attitude determination method utilizing same-beam interferometric measurement of ground measurement station |
| US20170141849A1 (en) * | 2015-11-16 | 2017-05-18 | Arizona Board Of Regents On Behalf Of Arizona State University | Low-cost, long-distance, high-bandwidth laser communication system for small mobile devices and spacecraft |
| US9843388B1 (en) * | 2015-06-08 | 2017-12-12 | Amazon Technologies, Inc. | Laser communications |
| CN107707297A (en) * | 2017-11-03 | 2018-02-16 | 潘运滨 | A kind of airborne laser communication system and its communication means |
| CN107911125A (en) * | 2017-12-01 | 2018-04-13 | 山东航天电子技术研究所 | A kind of Ka S multi-frequency combination satellite communication terminals |
-
2018
- 2018-04-20 CN CN201810362868.4A patent/CN108540209A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002051036A1 (en) * | 2000-12-20 | 2002-06-27 | Mitsubishi Denki Kabushiki Kaisha | Communication satellite/land circuits selection communications system |
| CN1658539A (en) * | 2005-01-10 | 2005-08-24 | 中国科学院上海光学精密机械研究所 | Space laser communication motion double-terminal long distance transmission analog device |
| CN1825787A (en) * | 2006-04-03 | 2006-08-30 | 哈尔滨工业大学 | Method for establishing laser link between low orbit safellite and ground station |
| US8848573B1 (en) * | 2010-10-21 | 2014-09-30 | Cisco Technology, Inc. | Bandwidth conservation for multicast traffic in RF downlinks |
| US9843388B1 (en) * | 2015-06-08 | 2017-12-12 | Amazon Technologies, Inc. | Laser communications |
| CN105371854A (en) * | 2015-09-18 | 2016-03-02 | 北京航天飞行控制中心 | Spacecraft attitude determination method utilizing same-beam interferometric measurement of ground measurement station |
| US20170141849A1 (en) * | 2015-11-16 | 2017-05-18 | Arizona Board Of Regents On Behalf Of Arizona State University | Low-cost, long-distance, high-bandwidth laser communication system for small mobile devices and spacecraft |
| CN107707297A (en) * | 2017-11-03 | 2018-02-16 | 潘运滨 | A kind of airborne laser communication system and its communication means |
| CN107911125A (en) * | 2017-12-01 | 2018-04-13 | 山东航天电子技术研究所 | A kind of Ka S multi-frequency combination satellite communication terminals |
Non-Patent Citations (1)
| Title |
|---|
| 田烨;胡丙萌;白晨琛;: "卫星光通信系统及ATP技术综述" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087234A (en) * | 2019-04-28 | 2019-08-02 | 清华大学 | A kind of unmanned plane formation secure communication of network method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES2693682T3 (en) | Placement of gateways near service beams | |
| JP3452271B2 (en) | Telecommunications network | |
| CN108540446B (en) | Virtual transponder with in-band commands | |
| US5978653A (en) | Method and apparatus for providing additional resources in a satellite communication system | |
| Dinc et al. | In-flight broadband connectivity: Architectures and business models for high capacity air-to-ground communications | |
| CN108540201B (en) | Method and system for virtual transponders on satellites | |
| US20020167917A1 (en) | Batch round robin polling method for return link communications between a mobile platform and a base station | |
| CN1193854A (en) | Multiple altitude satellite relay system and method | |
| CN108432156B (en) | Satellite system with increased communication capacity and method for increasing satellite system capacity | |
| WO2000028678A1 (en) | Satellite system | |
| Binder et al. | Crosslink architectures for a multiple satellite system | |
| CN115549767A (en) | In-band telemetry for virtual transponders | |
| ES2385622T3 (en) | Frequency reuse in a geosynchronous satellite communication system | |
| CN108462526A (en) | A kind of laser beam communications satellite | |
| US20070275659A1 (en) | Aggregate Batch Polling Method for Return Link Communications Between a Platform and a Base Station | |
| CN108566241A (en) | A kind of communication system | |
| CN108540209A (en) | A kind of onboard system of laser beam communications satellite | |
| CN108390715A (en) | A kind of terminal layout structure of laser beam communications satellite | |
| CN208209953U (en) | A kind of terminal layout structure of laser beam communications satellite | |
| CN108462527A (en) | A kind of laser beam communications satellite | |
| CN108337041A (en) | A kind of vehicular communication system | |
| Khalifa et al. | High altitude platform for wireless communications and other services | |
| CN108337040A (en) | A kind of earth station's communication system | |
| CN108540210A (en) | A kind of onboard system of laser beam communications satellite | |
| CA2221003A1 (en) | Space-based communication systems |
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: 20180914 |