CN110224741A - NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method - Google Patents
NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method Download PDFInfo
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- CN110224741A CN110224741A CN201910493474.7A CN201910493474A CN110224741A CN 110224741 A CN110224741 A CN 110224741A CN 201910493474 A CN201910493474 A CN 201910493474A CN 110224741 A CN110224741 A CN 110224741A
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- satellite
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- constellation
- wave beam
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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
- H04B7/18519—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
- H04B7/18578—Satellite systems for providing broadband data service to individual earth stations
- H04B7/18597—Arrangements for system physical machines management, i.e. for construction, operations control, administration, maintenance
Abstract
The invention discloses a kind of NGSO satellite constellations and GSO satellite communication system frequency spectrum coexistence method, coverage area by expanding NGSO satellite beams realizes NGSO satellite constellation wave beam to the multiple coverage on ground, when the maximum NGSO satellite in the elevation angle observed from earth station and GSO satellite angle are too small, when NGSO satellite beams signal being caused to cause unacceptable interference to GSO satellite system earth station, close the wave beam of this NGSO satellite, utilize adjacent NGSO satellite beams cover jamming region, in the case where realizing NGSO satellite constellation wave beam to ground all standing, it is coexisted with GSO satellite communication system frequency spectrum.
Description
Technical field
The invention belongs to the technical fields of satellite communication, and in particular to a kind of NGSO (Non-Geostationary
Satellite Orbit, nongeostationary satellite track) satellite constellation and GSO (Geostationary-Satellite
Orbit, geostationary satellite orbit) satellite communication system frequency spectrum coexistence method.
Background technique
Broadband connections satellite system includes two types, and the first kind is GSO broadband connections satellite system, covering emphasis country
And hot spot region, zonal Internet access service is provided；Second class is NGSO broadband connections satellite system, mainly includes
Low rail broadband connections constellation system, it is covering the whole world, extensive Internet access service is provided for whole world public users, 2010
Since year, domestic and international many enterprises are proposed NGSO broadband satellite constellation systems, plan to provide for the whole world anywhere or anytime mutually
Networking access service.
The close fixation in orientation due to geostationary satellite relative to earth station, so GSO communication satellite system is to the earth
Requiring with star for standing is low, currently, GSO broadband connections satellite system has been provided with stronger technological accumulation in the world and starts to provide
Market service.But GSO communication satellite system also has distinct disadvantage, remote, high latitude area the communication elevation angle including communication distance
It is low cause communication to be easily blocked, the limited, satellite launch that there is south (north) mountain effect, rail position resource cost high risk of entering the orbit it is big etc.,
Especially remote bring delay problem is not able to satisfy communication service increasingly to real-time increasingly higher demands.
Relative to GSO communication satellite system, the main advantage of NGSO broadband connections constellation system is that by entirely
Ball covering, small by the influence of topography, signal time delay is small, transmission loss is small, enters the orbit convenient for user terminal miniaturization and satellite launch
At low cost, frequency resource utilization rate height etc..
When NGSO satellite system and GSO satellite system spectrum sharing, it is a distinct issues that frequency, which is collinearly interfered,.When
When NGSO satellite enters the certain angle region of GSO satellite, the part wave beam of NGSO satellite is closed, referred to as closing wave beam side
Method is a kind of possible ways for avoiding NGSO constellation Yu GSO satellite communication system frequency interferences.If NGSO satellite system
Wave beam be only able to achieve over the ground one repeat cover, using close beam forming method when, it may appear that wave beam close sub-satellite point region without
The problem of wave beam, to can not achieve all standing of the satellite constellation to ground, the present invention is proposed by expanding covering for satellite beams
Lid range increases number of satellite realization satellite constellation to the multiple coverage in ground, is meeting NGSO constellation and GSO satellite communication system
The constraint condition that system frequency spectrum coexists, while NGSO satellite constellation wave beam may be implemented to ground all standing.
Summary of the invention
In view of this, the present invention provides a kind of NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method, energy
Enough in the case where meeting NGSO satellite constellation and GSO satellite communication system frequency spectrum coexists, NGSO satellite constellation wave beam pair is realized
Ground all standing.
Realize that technical scheme is as follows:
A kind of NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method pass through and expand NGSO satellite beams
Coverage area realizes NGSO satellite constellation wave beam to the multiple coverage on ground, as the maximum NGSO in the elevation angle observed from earth station
Satellite and GSO satellite angle are too small, cause NGSO satellite beams signal to cause GSO satellite system earth station unacceptable dry
When disturbing, the wave beam of this NGSO satellite is closed, using adjacent NGSO satellite beams cover jamming region, to realize NGSO satellite
In the case that constellation wave beam is to ground all standing, coexisted with GSO satellite communication system frequency spectrum.
Further, realize NGSO satellite constellation wave beam to the multiple coverage on ground by increasing NGSO number of satellite.
The utility model has the advantages that
1, of the invention a kind of NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method, are defended meeting NGSO
Under the constraint that star seat and GSO satellite communication system frequency spectrum coexist, while realizing NGSO satellite constellation wave beam to ground all standing.
2, of the invention a kind of NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method, by using adjacent
The wave cover interference region of NGSO satellite, obtains enough insulating spaces, avoids NGSO satellite beams signal to GSO satellite system
System earth station causes unacceptable interference.
Detailed description of the invention
Fig. 1 is that NGSO satellite constellation wave beam schematic diagram is covered in a repetition.
Fig. 2 is multiple coverage NGSO satellite constellation wave beam schematic diagram.
Fig. 3 is a repetition lid NGSO satellite constellation wave beam and GSO satellite beams relativeness schematic diagram.
Fig. 4 is multiple coverage NGSO satellite constellation wave beam and GSO satellite beams relativeness schematic diagram.
Specific embodiment
The present invention will now be described in detail with reference to the accompanying drawings and examples.
In the case where not considering to coexist with GSO satellite communication system frequency spectrum, in order to reduce the cost of satellite as far as possible, every
The beam coverage of NGSO satellite should be as small as possible；It is contemplated that NGSO satellite constellation wave beam constrains all standing on ground,
And the requirement that the earth station of constellation systems can smoothly switch between adjacent satellite, the covering of the wave beam of adjacent satellite on ground
Edge should have lesser overlapping region as far as possible, to realize satellite constellation to " one repeats to cover " on ground.
In the case where NGSO satellite constellation is only capable of realizing ground " one repeats to cover ", substar is in low latitudes in constellation
Satellite wave beam need it is lasting open, can realize all standing of satellite beams signal over the ground.For high latitudes
GSO satellite system earth station, is observed from earth station, GSO satellite and signal cover the subtended angle of the NGSO satellite in the region compared with
Greatly, the signal of NGSO satellite will not cause unacceptable interference to GSO satellite system earth station.It is (special for low latitudes region
Be not close to equatorial zone) GSO satellite system earth station, observed from earth station, GSO satellite and signal cover the region
NGSO satellite subtended angle it is smaller, the signal of NGSO satellite may cause GSO satellite system earth station unacceptable dry
It disturbs.In order to avoid the signal of NGSO satellite causes unacceptable interference to GSO satellite system earth station, need to close close to red
The part satellite beams of the NGSO constellation in road region still, and bring NGSO constellation wave beam to can not achieve to ground all standing
Problem.
Therefore, the present invention proposes the NGSO constellation using multiple coverage, on the basis of constellation wave beam is to ground all standing,
It is coexisted with GSO satellite communication system frequency spectrum.One repeat lid constellation on the basis of, by expand satellite beams coverage area or
Increase number of satellite to realize to NGSO constellation to the multiple coverage on ground, when the earth station from equatorial zone, the elevation angle observed
Maximum NGSO satellite and GSO satellite angle are too small, cause the NGSO satellite beams signal close to equatorial zone to GSO satellite system
When system earth station causes unacceptable interference, the wave beam of this NGSO satellite is closed.By beam signal can cover the region,
And wave cover region of other lower adjacent NGSO satellites of the elevation angle, enough insulating spaces are obtained, NGSO satellite is avoided
Beam signal causes unacceptable interference to GSO satellite system earth station.To realize that NGSO constellation wave beam covers ground entirely
In the case where lid, coexisted with GSO satellite communication system frequency spectrum.
According to the above summary of the invention, a satellite constellation for repeating lid is designed first, as shown in Figure 1.Adjacent satellite in Fig. 1
Covering overlapping area is smaller over the ground for wave beam, needs for all wave beams for being especially the satellite in low latitudes region to be all turned on, ability
Realize all standing to ground.
Fig. 3 gives the schematic diagram of the satellite constellation wave beam that as above one repeats lid and GSO satellite beams, when shown in Fig. 3
When the satellite S1 of NGSO satellite constellation is close to low latitudes region and by equator, if the wave beam of satellite S1 continues starting, from defending
What the earth station of the overlay area star S1 was observed, the angle of satellite S1 and GSO satellite is smaller, and the downlink wave beam of satellite S1 may be right
The earth station of GSO satellite system causes unacceptable interference, at this point, the earth station of the NGSO satellite system in equator region
Antenna beam direction is directed toward satellite S1, so the uplink beam of the earth station of NGSO satellite system may be to GSO satellite antenna
It interferes.Therefore, it is necessary to close the wave beam for being in the NGSO satellite of equator avoid causing GSO satellite system can not
The interference of receiving.
After the wave beam for closing satellite S1, the ground location of satellite S1 lower zone needs the wave beam of other satellites to cover
Lid, is just able to achieve NGSO satellite constellation wave beam to ground all standing.Therefore, it is necessary to repeat the basis of lid satellite constellation one, expand
The coverage area of large satellite wave beam increases number of satellite realization to the multiple coverage in ground, so that satellite constellation is double to ground multiple
Lid, the present embodiment is constant with satellite constellation scale, realizes satellite constellation wave beam pair by expanding the coverage area of satellite beams
The double coverage satellite constellation of the double coverage in ground, acquisition is as shown in Figure 2.
Fig. 4 gives the satellite constellation wave beam of double coverage as above and the schematic diagram of GSO satellite beams, when shown in Fig. 4
When the satellite S1 of NGSO satellite constellation is close to low latitudes region and by equator, when satellite S1 continue starting in view of it wave beam with
When the earth station communication of its overlay area, the uplink and downlink link of GSO satellite system shown in figure may all be caused
Unacceptable interference needs to close at this time some or all of satellite S1 wave beam, it is accordingly required in particular to it is attached to close satellite S1 substar
The part wave beam of near field.After closing the wave beam of satellite S1, since the satellite S2 and S3 before and after satellite S1 can still cover satellite
The angle of S1 substar near zone, and being observed from the earth station in the region, satellite S2 or satellite S3 and GSO satellite compared with
When greatly, so as to avoid NGSO satellite system from communicating with its earth station, unacceptable interference is caused to GSO satellite system,
It is coexisted to realize NGSO constellation with GSO satellite communication system frequency spectrum.
In addition, future there may be multiple same frequency NGSO communication satellite constellation systems while in orbit, the NGSO with frequency is defended
Serious frequency interferences problem is likely to occur between star system.When what is observed from earth station, the satellite A of NGSO constellation and other
The angle of the satellite of NGSO satellite system is too small, when may cause serious unacceptable interference, closes the satellite A of NGSO constellation
It is directed toward the wave beam in the region, the beam position of other satellites region in NGSO constellation is selected, so as to avoid to other
NGSO causes unacceptable interference.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (2)
1. a kind of NGSO satellite constellation and GSO satellite communication system frequency spectrum coexistence method, which is characterized in that defended by expanding NGSO
The coverage area of star wave beam realize NGSO satellite constellation wave beam to the multiple coverage on ground, when the elevation angle observed from earth station most
Big NGSO satellite and GSO satellite angle are too small, and causing NGSO satellite beams signal to cause GSO satellite system earth station can not
When the interference of receiving, the wave beam of this NGSO satellite is closed, using adjacent NGSO satellite beams cover jamming region, to realize
In the case that NGSO satellite constellation wave beam is to ground all standing, coexisted with GSO satellite communication system frequency spectrum.
2. a kind of NGSO satellite constellation as described in claim 1 and GSO satellite communication system frequency spectrum coexistence method, feature exist
In by increasing NGSO number of satellite realization NGSO satellite constellation wave beam to the multiple coverage on ground.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518965A (en) * | 2019-10-09 | 2019-11-29 | 北京中科晶上科技股份有限公司 | A kind of Non GEO satellite is to geosynchronous satellite uplink interference bypassing method |
| CN110708110A (en) * | 2019-10-09 | 2020-01-17 | 北京中科晶上科技股份有限公司 | Method for avoiding uplink interference of nonsynchronous orbit satellite on synchronous orbit satellite |
| CN110838866A (en) * | 2019-10-09 | 2020-02-25 | 中国空间技术研究院 | Method for sharing same frequency of NGSO satellite system and GSO satellite system |
| CN110932768A (en) * | 2019-10-14 | 2020-03-27 | 中国空间技术研究院 | Polar orbit constellation GEO interference avoidance method based on polar orbit constellation attitude bias |
| CN110958047A (en) * | 2019-10-12 | 2020-04-03 | 中国空间技术研究院 | Low-orbit constellation GEO frequency interference avoidance method based on multiple coverage |
| CN112083449A (en) * | 2020-09-14 | 2020-12-15 | 中国科学院微小卫星创新研究院 | Positioning method for minimum interference angle area of NGSO satellite coverage area |
| CN112383344A (en) * | 2020-11-13 | 2021-02-19 | 航天科工空间工程发展有限公司 | Method and system for sharing frequency spectrum of NGSO satellite constellation system and ground system |
| CN114257293A (en) * | 2021-12-22 | 2022-03-29 | 军事科学院系统工程研究院网络信息研究所 | Modeling method for interference of NGSO constellation on GEO satellite communication earth station based on space-time cut set |
| WO2022083367A1 (en) * | 2020-10-20 | 2022-04-28 | 大唐移动通信设备有限公司 | Interference handling method and apparatus, and device and readable storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110518965A (en) * | 2019-10-09 | 2019-11-29 | 北京中科晶上科技股份有限公司 | A kind of Non GEO satellite is to geosynchronous satellite uplink interference bypassing method |
| CN110708110A (en) * | 2019-10-09 | 2020-01-17 | 北京中科晶上科技股份有限公司 | Method for avoiding uplink interference of nonsynchronous orbit satellite on synchronous orbit satellite |
| CN110838866A (en) * | 2019-10-09 | 2020-02-25 | 中国空间技术研究院 | Method for sharing same frequency of NGSO satellite system and GSO satellite system |
| CN110518965B (en) * | 2019-10-09 | 2022-05-10 | 北京中科晶上科技股份有限公司 | Method for avoiding uplink interference of nonsynchronous orbit satellite on synchronous orbit satellite |
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| CN110958047A (en) * | 2019-10-12 | 2020-04-03 | 中国空间技术研究院 | Low-orbit constellation GEO frequency interference avoidance method based on multiple coverage |
| CN110932768A (en) * | 2019-10-14 | 2020-03-27 | 中国空间技术研究院 | Polar orbit constellation GEO interference avoidance method based on polar orbit constellation attitude bias |
| CN112083449A (en) * | 2020-09-14 | 2020-12-15 | 中国科学院微小卫星创新研究院 | Positioning method for minimum interference angle area of NGSO satellite coverage area |
| CN112083449B (en) * | 2020-09-14 | 2023-11-28 | 中国科学院微小卫星创新研究院 | Positioning method for minimum interference angle area of NGSO satellite coverage area |
| WO2022083367A1 (en) * | 2020-10-20 | 2022-04-28 | 大唐移动通信设备有限公司 | Interference handling method and apparatus, and device and readable storage medium |
| CN112383344A (en) * | 2020-11-13 | 2021-02-19 | 航天科工空间工程发展有限公司 | Method and system for sharing frequency spectrum of NGSO satellite constellation system and ground system |
| CN114257293A (en) * | 2021-12-22 | 2022-03-29 | 军事科学院系统工程研究院网络信息研究所 | Modeling method for interference of NGSO constellation on GEO satellite communication earth station based on space-time cut set |
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Application publication date: 20190910 |