CN106680835A - Navigation augmentation system based on LEO small satellite - Google Patents
Navigation augmentation system based on LEO small satellite Download PDFInfo
- Publication number
- CN106680835A CN106680835A CN201611146656.XA CN201611146656A CN106680835A CN 106680835 A CN106680835 A CN 106680835A CN 201611146656 A CN201611146656 A CN 201611146656A CN 106680835 A CN106680835 A CN 106680835A
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- Prior art keywords
- navigation
- leo
- module
- ground
- moonlet
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/08—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing integrity information, e.g. health of satellites or quality of ephemeris data
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- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The present invention discloses a navigation augmentation system based on a LEO small satellite. The system comprises at least four ground stations, a LEO small satellite module, an GNSS module and a user terminal. The LEO small satellite module is arranged at the exoatmosphere and is configured to receive navigation signals including atmosphere errors sent by the ground stations over the ground and receive navigation signals without atmosphere errors of the GNSS module in the sky, the differences of the navigation signals of two are compared to obtain the atmosphere delay difference correction near the current position of the LEO small satellite module and broadcast the signals to the ground, and a user terminal receives the atmosphere delay difference correction of the LEO small satellite module so as to effectively improve the navigation location precision. The navigation augmentation system based on the LEO small satellite can improve the receiving speed and the integrity of the navigation information through the user terminal so as to solve the problems that the ground stations of a ground-based augmentation system are easy to be shielded by buildings and disturbed by multiple paths and relieve the satellite-based augmentation service scope limitation.
Description
Technical field
The present invention relates to a kind of navigation augmentation system, more particularly to a kind of navigation enhancing based on LEO track moonlets
System.
Background technology
At present, external satellite navigation reinforcing system is broadly divided into ground strengthening system (GBAS) and satellite-based augmentation system
(SBAS) two big class.
Ground strengthening system (GBAS) can reach the purpose for improving satellite navigation precision by providing differential corrections signal,
Development energetically has at home and abroad been obtained at present.The major defect of ground strengthening system is that service area is limited, easily by building
Block, multipath interference etc., system health be limited.
Satellite-based augmentation system (SBAS) difference station by known to the wide position of a large amount of distributed poles is monitored to aeronautical satellite,
Obtain original location data and deliver to central processing station, obtain ephemeris error, satellite clock correction, the ionosphere delay of each satellite etc. many
Update information is planted, and upper note is broadcast to geostationary orbit (GEO) satellite from GEO satellite to user, realization is led to original satellite
The improvement of boat system accuracy.The major defect of satellite-based augmentation system is that service area is limited, can only be to 75 degree of models of north and south latitude
The service of enclosing, while positioning precision sub-meter grade.
The content of the invention
The technical problem to be solved is to provide a kind of navigation augmentation system based on LEO track moonlets, its
Reception speed and the integrity of navigation information of the user terminal to navigation information can be improved, solves what ground strengthening system ran into
The problems such as earth station is easily blocked by building, multipath is disturbed, releasing satellite-based strengthens service area restriction.
The present invention is to solve above-mentioned technical problem by following technical proposals：It is a kind of based on LEO track moonlets
Navigation augmentation system, it includes at least four earth stations, LEO track moonlet modules, GNSS module (GPS
Module), user terminal, LEO track moonlet module arrangements in exoatmosphere, over the ground satellite receiver send comprising atmosphere
The navigation signal of error, to day the navigation signal without atmosphere error of GNSS module is received, and both obtain LEO by differential comparison
Air time delay difference correction near track moonlet module current location, and the signal is earthward broadcasted, user terminal connects
The air time delay difference correction of LEO track moonlet modules is received, so as to effectively improve navigation and positioning accuracy.
Preferably, the LEO tracks moonlet module also functions as in itself navigation constellation, and earthward broadcasts navigation message letter
Number.
Preferably, the high-accuracy ephemeris star clock parameters of IGS, LEO track moonlet moulds can be obtained and uploaded in the earth station
Block directly sends the high-accuracy ephemeris of IGS to the user terminal on ground.
Preferably, the LEO tracks moonlet module navigation comprising atmosphere error that over the ground satellite receiver sends
GNSS module navigation message signals are forwarded while signal.
The present invention positive effect be：The present invention can improve user terminal to the reception speed of navigation information and
The integrity of navigation information, solves the problems such as earth station that runs into of ground strengthening system is easily blocked by building, multipath is disturbed,
Releasing satellite-based strengthens service area restriction.
Description of the drawings
Fig. 1 is the module map of embodiments of the invention.
Specific embodiment
Present pre-ferred embodiments are given below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As shown in figure 1, navigation augmentation system of the present invention based on LEO track moonlets includes at least four earth stations, LEO
Track moonlet module, GNSS module (GPS module), user terminal, LEO track moonlet module arrangements
In exoatmosphere, the navigation signal comprising atmosphere error that over the ground satellite receiver sends, GNSS module is received not to day
Navigation signal containing atmosphere error, both differential comparisons obtain the air near LEO track moonlet modules current location and prolong
When difference correction, and earthward broadcast the signal, user terminal receives the air time delay difference of LEO track moonlet modules and repaiies
Positive quantity, so as to effectively improve navigation and positioning accuracy.
LEO track moonlet modules also function as in itself navigation constellation, and earthward broadcast navigation message signals, so can have
Effect improves the integrity of navigator fix signal.
Earth station is provided with the high-accuracy ephemeris star clocks of IGS, and the high-accuracy ephemeris star clock ginsengs of IGS can be obtained and uploaded in earth station
Number, LEO track moonlets module directly sends the high-accuracy ephemeris of IGS to the user terminal on ground, so can effectively shorten use
The convergence time of family terminal receiver.
Turn while the LEO track moonlets module navigation signal comprising atmosphere error that over the ground satellite receiver sends
GNSS module navigation message signals are sent out, the sensitivity of user terminal receiver can be so improved.
In a particular embodiment, LEO satellite p (i.e. LEO tracks moonlet module) is arranged in exoatmosphere, and base is received over the ground
The navigation signal comprising atmosphere error that quasi- station k (i.e. earth station) sends, to day GNSS satellite s (i.e. GNSS module) is received
Navigation signal without atmosphere error, both differential comparisons obtain the air time delay difference near LEO satellite p current locations and repair
Positive quantity, and the signal is earthward broadcasted, receiver u (i.e. user terminal) to be measured receives the air time delay differential corrections of LEO satellite p
Amount, so as to effectively improve navigation and positioning accuracy.By said method, the integrity and user terminal of navigation information is to navigation information
Reception speed significantly improve, solve that the earth station that runs into of ground strengthening system is easily blocked by building, multipath interference etc. is asked
Topic, releasing satellite-based strengthens service area restriction.
In sum, the present invention can improve user terminal to the complete of the reception speed of navigation information and navigation information
Property, the problems such as earth station that runs into of ground strengthening system is easily blocked by building, multipath is disturbed is solved, releasing satellite-based strengthens clothes
Business scope is limited.
Particular embodiments described above, the technical problem, technical scheme and beneficial effect to the solution of the present invention is carried out
Further describe, should be understood that the specific embodiment that the foregoing is only of the invention, be not limited to
The present invention, all any modification, equivalent substitution and improvements within the spirit and principles in the present invention, done etc., should be included in this
Within the protection domain of invention.
Claims (4)
1. a kind of navigation augmentation system based on LEO track moonlets, it is characterised in that it includes at least four earth stations, LEO
Track moonlet module, GNSS module, user terminal, LEO track moonlet module arrangements receive over the ground ground in exoatmosphere
Stand send the navigation signal comprising atmosphere error, to day receive GNSS module the navigation signal without atmosphere error,
Both differential comparisons obtain the air time delay difference correction near LEO track moonlet modules current location, and earthward wide
The signal is broadcast, user terminal receives the air time delay difference correction of LEO track moonlet modules, fixed so as to effectively improve navigation
Position precision.
2. the navigation augmentation system of LEO track moonlets is based on as claimed in claim 1, it is characterised in that the LEO tracks
Moonlet module also functions as in itself navigation constellation, and earthward broadcasts navigation message signals.
3. the navigation augmentation system of LEO track moonlets is based on as claimed in claim 1, it is characterised in that the earth station
On can obtain and upload the high-accuracy ephemeris star clock parameters of IGS, LEO track moonlets module directly sends to the user terminal on ground
The high-accuracy ephemeris of IGS.
4. the navigation augmentation system of LEO track moonlets is based on as claimed in claim 1, it is characterised in that the LEO tracks
Forwarding GNSS module navigation while the moonlet module navigation signal comprising atmosphere error that over the ground satellite receiver sends
Telegraph signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611146656.XA CN106680835A (en) | 2016-12-13 | 2016-12-13 | Navigation augmentation system based on LEO small satellite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611146656.XA CN106680835A (en) | 2016-12-13 | 2016-12-13 | Navigation augmentation system based on LEO small satellite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106680835A true CN106680835A (en) | 2017-05-17 |
Family
ID=58868294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611146656.XA Pending CN106680835A (en) | 2016-12-13 | 2016-12-13 | Navigation augmentation system based on LEO small satellite |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107229061A (en) * | 2017-07-18 | 2017-10-03 | 武汉大学 | A kind of star based on low orbit satellite ground difference real-time accurate localization method |
| CN108761504A (en) * | 2018-04-04 | 2018-11-06 | 南京航空航天大学 | Low rail navigation enhancing satellite system |
| CN109061674A (en) * | 2018-06-28 | 2018-12-21 | 上海卫星工程研究所 | The system and method that dipper system continuous service is monitored using Constellation of Low Earth Orbit Satellites |
| CN109490911A (en) * | 2018-11-30 | 2019-03-19 | 中国电子科技集团公司第五十四研究所 | A kind of low rail star base satellite navigation of double frequency enhances signal generating method |
| CN109521442A (en) * | 2018-11-22 | 2019-03-26 | 北京航空航天大学 | One kind being based on the quick cloth station method of satellite-based augmentation system |
| CN111308506A (en) * | 2019-12-25 | 2020-06-19 | 航天恒星科技有限公司 | Ground testing method and device of satellite-based augmentation system and storage medium |
| CN112731489A (en) * | 2020-12-11 | 2021-04-30 | 国网辽宁省电力有限公司朝阳供电公司 | High-precision positioning method based on seamless fusion of BDS (brain-based distributed system) satellite-based foundation enhancement system |
| CN112929833A (en) * | 2019-12-06 | 2021-06-08 | 中移(上海)信息通信科技有限公司 | Data distribution system and method |
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| 田世伟 等: ""基于LEO通信卫星增强北斗二代导航系统的性能研究"", 《CSNC2010第一届中国卫星导航学术年会》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107229061A (en) * | 2017-07-18 | 2017-10-03 | 武汉大学 | A kind of star based on low orbit satellite ground difference real-time accurate localization method |
| CN107229061B (en) * | 2017-07-18 | 2019-09-03 | 武汉大学 | A kind of star based on low orbit satellite ground difference real-time accurate localization method |
| CN108761504A (en) * | 2018-04-04 | 2018-11-06 | 南京航空航天大学 | Low rail navigation enhancing satellite system |
| CN109061674A (en) * | 2018-06-28 | 2018-12-21 | 上海卫星工程研究所 | The system and method that dipper system continuous service is monitored using Constellation of Low Earth Orbit Satellites |
| CN109521442A (en) * | 2018-11-22 | 2019-03-26 | 北京航空航天大学 | One kind being based on the quick cloth station method of satellite-based augmentation system |
| CN109521442B (en) * | 2018-11-22 | 2022-07-26 | 北京航空航天大学 | Rapid station distribution method based on satellite-based augmentation system |
| CN109490911A (en) * | 2018-11-30 | 2019-03-19 | 中国电子科技集团公司第五十四研究所 | A kind of low rail star base satellite navigation of double frequency enhances signal generating method |
| CN112929833A (en) * | 2019-12-06 | 2021-06-08 | 中移(上海)信息通信科技有限公司 | Data distribution system and method |
| CN112929833B (en) * | 2019-12-06 | 2022-05-06 | 中移(上海)信息通信科技有限公司 | Data distribution system and method |
| CN111308506A (en) * | 2019-12-25 | 2020-06-19 | 航天恒星科技有限公司 | Ground testing method and device of satellite-based augmentation system and storage medium |
| CN112731489A (en) * | 2020-12-11 | 2021-04-30 | 国网辽宁省电力有限公司朝阳供电公司 | High-precision positioning method based on seamless fusion of BDS (brain-based distributed system) satellite-based foundation enhancement system |
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Application publication date: 20170517 |