CN108761504A - Low rail navigation enhancing satellite system - Google Patents
Low rail navigation enhancing satellite system Download PDFInfo
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- CN108761504A CN108761504A CN201810300415.9A CN201810300415A CN108761504A CN 108761504 A CN108761504 A CN 108761504A CN 201810300415 A CN201810300415 A CN 201810300415A CN 108761504 A CN108761504 A CN 108761504A
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- navigation
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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
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
-
- 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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/421—Determining position by combining or switching between position solutions or signals derived from different satellite radio beacon positioning systems; by combining or switching between position solutions or signals derived from different modes of operation in a single system
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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)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of low rail navigation enhancing satellite systems, belong to technical field of satellite navigation.Within the system, ground reference station receives the GNSS real-time accurate ephemeris that IGS organizes official website to provide, and is above noted to low rail navigation enhancing satellite after data processing centre is handled；Navigation enhancing load is mounted on low rail navigation enhancing satellite, to receive and process the data of double frequency GNSS carrier phases data and data processing centre's upload, while generating enhanced navigation signal；Ground PPP receivers are according to the enhanced navigation signal received and combine GNSS satellite data, realize high accuracy positioning.The low rail navigation enhancing satellite system of the present invention, global Centimeter Level navigator fix is realized to the processing of IGS high-precision ephemeris using Static Precise Point Positioning algorithm in the quick kinetic characteristic of low orbit satellite and navigation enhancing load, improves the precision of terrestrial positioning, expand satellite communication coverage area and improve communication speed.
Description
Technical field
The present invention relates to a kind of low rail navigation enhancing satellite systems, belong to technical field of satellite navigation.
Background technology
With further increasing for China's urbanization rate, surge to the demand for services based on real time position, such as shared bicycle,
Pilotless automobile etc., these antecedent basis are exactly high-precision navigator fix.
The Satellite Navigation Techniques such as GPS, Big Dipper can be the personal positioning service that provide precision and be better than 10m at present, but by
In factors such as City Terrain, complex electromagnetic environment interference so that GPS, Big Dipper etc. are led using providing wide-area services as the satellite of target
Boat system is insufficient for the city navigation location requirement of particular condition.In addition, such navigation system is built with high costs, and take
Such system for building higher precision often means that more huge cost, it is therefore desirable to consider further on the basis of at present
Navigation enhancing service.
Theoretically, in data transmission, time delay preferably, can generate smooth user experience in this way close to zero.It is right
Closer apart from the earth for satellite network, time delay is with regard to smaller.General GEO satellite orbit altitude is about 36000 kilometers, passes
The time delay of delivery data reaches more than 500 milliseconds, and satellite orbital altitude is big, data transmission delay is long.And low rail navigation enhancing satellite rail
Road height is usually 200 ~ 2000 kilometers.
Invention content
The technical problem to be solved in the present invention is to provide the short low rail navigation enhancing satellite systems of a kind of low cost, time delay
System, the system can realize ground high accuracy positioning navigation.
For achieving the above object, the present invention uses following technical scheme：
Low rail navigation enhancing satellite system, including：Ground reference station, data processing centre, low rail navigation enhancing satellite and ground
PPP receivers；
The ground reference station receives the GNSS real-time accurate ephemeris that IGS organizes official website to provide, and through the data processing centre
In the navigation enhancing load carried on upper note to the low rail navigation enhancing satellite after processing；
The navigation enhancing load handles the GNSS real-time accurates ephemeris of upper note with the GNSS satellite data received, raw
At enhanced navigation signal and send；
The ground PPP receivers are positioned according to the enhanced navigation signal and GNSS satellite data of reception.
Further, the navigation enhancing load includes：It atomic frequency standard, high-precision receiver module, precise orbit determination and awards
When module, accurate star orbital compiling module, enhanced navigation signal generation module and enhanced navigation signal emission module；
Its course of work is：
1）The high-precision receiver module receives two paths of data, is that ground reference station organizes official website to download from IGS all the way
The GNSS real-time accurate ephemeris noted in telemetering afterwards, another way is GNSS satellite data, includes mainly：Double frequency pseudorange, carrier phase
Data and GNSS broadcast ephemeris data；
2）The atomic frequency standard exports established standards frequency, the precise orbit determination and time service mould to the high-precision receiver module
The data that root tuber is obtained according to previous step are modified the frequency drift of the atomic frequency standard, realize that the low rail navigation enhancing is defended
The orbit determination of star and time synchronization, and navigation message is generated by precise ephemeris compiling module；
3）Enhanced navigation signal generation module is according to the GNSS real-time accurate ephemeris uploaded from the central station
And in conjunction with the navigation message, L-band signal is modulated into after encoded, navigation signal transmitting module emits the L-band signal
To ground.
Further, the established standards frequency is 70MHz.
Further, the navigation enhancing load carries out positioning enhancing using non-differential mode type Static Precise Point Positioning algorithm.
Further, the ground PPP receivers include：GNSS receiver, low orbit satellite navigation enhancing receiver, ARM
Processor, mobile Internet communication module and power supply supplying module；
The arm processor integrated positioning solver.
Further, the power supply supplying module includes：Lithium battery and power input, power input is by installing ground pylon
It realizes, lithium battery stores electric energy as stand-by power supply.
The beneficial effects of the present invention are：
Compared to traditional GNSS satellite Position Fixing Navigation System, low rail of the invention navigation enhancing satellite system cost is more cheap.It is logical
The algorithm process for crossing the precise ephemeris of GNSS satellite signal and the IGS offer to acquisition, realizes the positioning of Centimeter Level real-time high-precision,
Improve the precision of navigator fix；In addition, low orbit satellite and GNSS navigation satellites are used in combination, relatively using low orbit satellite
Face is moved compared with fast characteristic, is quickly formed Geometrical change, is conducive to the quick determination of carrier ambiguities parameter, improves carrier data
Using effect reduces user's positioning initialization time, improves navigator fix timeliness simultaneously because providing quickly navigation ephemeris
Property is, it can be achieved that the round-the-clock covering of signal in global range.
Description of the drawings
Fig. 1 is the low rail navigation enhancing satellite system schematic diagram of the present invention；
Fig. 2, which is the low rail navigation of the present invention, enhances navigation enhancing load schematic diagram in satellite system.
Specific implementation mode
Below in conjunction with the accompanying drawings, it elaborates to the present invention.
Low rail navigation enhancing satellite system as shown in Figure 1, including：Ground reference station, data processing centre, the navigation of low rail
Enhance satellite and ground PPP receivers；
Ground reference station receive IGS organize official website offer GNSS real-time accurate ephemeris, and after data processing centre is handled on
It notes to low rail in the navigation enhancing load for navigating and enhancing and being carried on satellite；
Navigation enhances load：Atomic frequency standard, high-precision receiver module, precise orbit determination and time service module, accurate star orbital are compiled
Molding block, enhanced navigation signal generation module and enhanced navigation signal emission module, the course of work are as shown in Figure 2：
1）High-precision receiver module receives two paths of data, be ground reference station all the way from IGS organize official website's download after it is distant
The GNSS real-time accurate ephemeris noted in survey, another way is GNSS satellite data, includes mainly：Double frequency pseudorange, carrier phase data
With GNSS broadcast ephemeris data；
2）The atomic frequency standard exports 70MHz standard frequencies, i.e. original frequency to the high-precision receiver module；Precise orbit determination
The satellite data obtained according to previous step with time service module carries out calibration amendment to the frequency drift of the atomic frequency standard, realizes low
Rail navigation enhancing Satellite Orbit Determination and time synchronization, while high-precision orbit determination is realized using non-differential mode type Static Precise Point Positioning algorithm,
And navigation message is generated by precise ephemeris compiling module；
3）Enhanced navigation signal generation module is according to the GNSS real-time accurates ephemeris uploaded from central station and leads
Avionics text, is modulated into L-band enhanced navigation signal after encoded, navigation signal transmitting module by the enhanced navigation signal emit to
Ground.
Ground PPP receivers are positioned according to the enhanced navigation signal and GNSS satellite data that receive.Ground PPP connects
The main composition of receipts machine is：GNSS receiver, low orbit satellite navigation enhancing receiver, mobile Internet communication module, ARM processing
Device and power supply supplying module.
GNSS receiver is made of a variety of positioning constellation receiving modules, and real-time collecting GNSS satellite data are used for positioning solution
It calculates, double frequency GNSS receiver has higher positioning accuracy relative to single-frequency GNSS receiver；Low orbit satellite navigation enhancing receiver
It is customized according to practice；Mobile Internet communication module downloads IGS high-precisions ephemeris and clock correction by mobile Internet
Data；GNSS data, low orbit satellite navigation enhancing data and the mobile Internet communication that arm processor is obtained according to receiving module
The IGS data run positioning calculation programs that module obtains, i.e. navigator fix processing software, to obtain real time position；Power supply supplies
Include lithium battery and power input to module, power input voltage is provided by installing ground pylon, and lithium battery is by storing electric energy
As stand-by power supply.
The GNSS satellite navigation signal that low rail navigation enhancing satellite, ground PPP receivers and IGS tissues receive is derived from same
GNSS satellite, the real-time accurate ephemeris that IGS tissues provide are to the handling result from GNSS satellite navigation signal.
Based on description of the preferred embodiment of the present invention, it should be apparent that the sheet being defined by the appended claims
Invention is not limited only to the specific detail that is illustrated in specification above, without departing from present inventive concept or range to this hair
Bright many obviously change equally possible reaches the purpose of the present invention.
Claims (6)
1. low rail navigation enhancing satellite system, which is characterized in that the system includes：Ground reference station, data processing centre, low rail
Navigation enhancing satellite and ground PPP receivers；
The ground reference station receives the GNSS real-time accurate ephemeris that IGS organizes official website to provide, and through the data processing centre
In the navigation enhancing load carried on upper note to the low rail navigation enhancing satellite after processing；
The navigation enhancing load handles the GNSS real-time accurates ephemeris of upper note with the GNSS satellite data received, raw
At enhanced navigation signal and send；
The ground PPP receivers are positioned according to the enhanced navigation signal and GNSS satellite data of reception.
2. low rail navigation enhancing satellite system according to claim 1, which is characterized in that
The navigation enhances load：Atomic frequency standard, high-precision receiver module, precise orbit determination and time service module, accurate star
Rail compiling module, enhanced navigation signal generation module and enhanced navigation signal emission module；
Its course of work is：
1）The high-precision receiver module receives two paths of data, is that ground reference station organizes official website to download from IGS all the way
The GNSS real-time accurate ephemeris noted in telemetering afterwards;Another way is GNSS satellite data, includes mainly：Double frequency pseudorange, carrier phase
Data and GNSS broadcast ephemeris data；
2）The atomic frequency standard exports established standards frequency, the precise orbit determination and time service mould to the high-precision receiver module
The data that root tuber is obtained according to previous step are modified the frequency drift of the atomic frequency standard, realize that the low rail navigation enhancing is defended
The orbit determination of star and time synchronization, and navigation message is generated by precise ephemeris compiling module；
3）Enhanced navigation signal generation module is according to the GNSS real-time accurate ephemeris uploaded from the central station
And in conjunction with the navigation message, L-band signal is modulated into after encoded, navigation signal transmitting module emits the L-band signal
To ground.
3. low rail navigation enhancing satellite system according to claim 2, which is characterized in that the established standards frequency is
70MHz。
4. low rail navigation enhancing satellite system according to claim 1 or 2, which is characterized in that the navigation enhances load
Positioning enhancing is carried out using non-differential mode type Static Precise Point Positioning algorithm.
5. low rail navigation enhancing satellite system according to claim 1, which is characterized in that the ground PPP receiver packets
It includes：GNSS receiver, low orbit satellite navigation enhancing receiver, arm processor, mobile Internet communication module and power supply supply mould
Block；
The arm processor integrated positioning solver.
6. low rail navigation enhancing satellite system according to claim 5, which is characterized in that the power supply supplying module packet
It includes：Lithium battery and power input, power input realize that lithium battery stores electric energy as stand-by power supply by installing ground pylon.
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| CN201810300415.9A CN108761504A (en) | 2018-04-04 | 2018-04-04 | Low rail navigation enhancing satellite system |
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| CN201810300415.9A CN108761504A (en) | 2018-04-04 | 2018-04-04 | Low rail navigation enhancing satellite system |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109683179A (en) * | 2019-01-18 | 2019-04-26 | 北京未来导航科技有限公司 | Being navigated based on low orbit satellite enhances the same frequency band receiving/transmission method and system of platform |
| CN109764879A (en) * | 2018-12-28 | 2019-05-17 | 上海海积信息科技股份有限公司 | A kind of Satellite Orbit Determination method, apparatus and electronic equipment |
| CN109782313A (en) * | 2019-01-17 | 2019-05-21 | 上海卫星工程研究所 | Ground Static Precise Point Positioning data processing method |
| CN109799518A (en) * | 2019-01-17 | 2019-05-24 | 上海卫星工程研究所 | Being navigated using low rail enhances the broadcast message layout broadcasting method of satellite |
| CN110011719A (en) * | 2019-03-05 | 2019-07-12 | 上海卫星工程研究所 | It is a kind of to obtain control method using the star upper rail of GPS orbit determination data |
| CN110031881A (en) * | 2019-05-06 | 2019-07-19 | 中国人民解放军61540部队 | The method of laser ranging auxiliary Static Precise Point Positioning between high precision star |
| CN110058287A (en) * | 2019-05-16 | 2019-07-26 | 北京合众思壮科技股份有限公司 | A kind of Orbit determination for LEOs method, apparatus and system |
| CN110187364A (en) * | 2019-06-14 | 2019-08-30 | 火眼位置数智科技服务有限公司 | A kind of low rail navigation enhancing is accurate to correct data generation, upper injection system and method |
| CN111381259A (en) * | 2020-03-06 | 2020-07-07 | 上海卫星工程研究所 | Method and system for enhancing Beidou navigation system by using low-earth-orbit satellite |
| CN111580133A (en) * | 2020-03-25 | 2020-08-25 | 浙江时空道宇科技有限公司 | Navigation enhancement information processing method and device, electronic equipment and storage medium |
| CN112817023A (en) * | 2021-01-06 | 2021-05-18 | 西安空间无线电技术研究所 | Satellite-based enhanced service-based unsupported low-orbit navigation enhancement system and method |
| CN112817022A (en) * | 2020-12-23 | 2021-05-18 | 浙江吉利控股集团有限公司 | Low-orbit satellite time-frequency synchronization method, system, electronic equipment and storage medium |
| CN113346941A (en) * | 2021-06-02 | 2021-09-03 | 天津(滨海)人工智能军民融合创新中心 | Frequency-rail database pre-reserve compiling method based on system model |
| CN113777633A (en) * | 2021-08-23 | 2021-12-10 | 山东未来导航科技有限公司 | Positioning method, electronic device and computer storage medium |
| CN114509790A (en) * | 2022-02-17 | 2022-05-17 | 北京国电高科科技有限公司 | Positioning method and positioning system based on low-orbit satellite constellation |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109764879A (en) * | 2018-12-28 | 2019-05-17 | 上海海积信息科技股份有限公司 | A kind of Satellite Orbit Determination method, apparatus and electronic equipment |
| CN109782313A (en) * | 2019-01-17 | 2019-05-21 | 上海卫星工程研究所 | Ground Static Precise Point Positioning data processing method |
| CN109799518A (en) * | 2019-01-17 | 2019-05-24 | 上海卫星工程研究所 | Being navigated using low rail enhances the broadcast message layout broadcasting method of satellite |
| CN109683179A (en) * | 2019-01-18 | 2019-04-26 | 北京未来导航科技有限公司 | Being navigated based on low orbit satellite enhances the same frequency band receiving/transmission method and system of platform |
| CN110011719A (en) * | 2019-03-05 | 2019-07-12 | 上海卫星工程研究所 | It is a kind of to obtain control method using the star upper rail of GPS orbit determination data |
| CN110031881A (en) * | 2019-05-06 | 2019-07-19 | 中国人民解放军61540部队 | The method of laser ranging auxiliary Static Precise Point Positioning between high precision star |
| CN110058287A (en) * | 2019-05-16 | 2019-07-26 | 北京合众思壮科技股份有限公司 | A kind of Orbit determination for LEOs method, apparatus and system |
| CN110187364A (en) * | 2019-06-14 | 2019-08-30 | 火眼位置数智科技服务有限公司 | A kind of low rail navigation enhancing is accurate to correct data generation, upper injection system and method |
| CN111381259A (en) * | 2020-03-06 | 2020-07-07 | 上海卫星工程研究所 | Method and system for enhancing Beidou navigation system by using low-earth-orbit satellite |
| CN111580133A (en) * | 2020-03-25 | 2020-08-25 | 浙江时空道宇科技有限公司 | Navigation enhancement information processing method and device, electronic equipment and storage medium |
| CN112817022A (en) * | 2020-12-23 | 2021-05-18 | 浙江吉利控股集团有限公司 | Low-orbit satellite time-frequency synchronization method, system, electronic equipment and storage medium |
| CN112817023A (en) * | 2021-01-06 | 2021-05-18 | 西安空间无线电技术研究所 | Satellite-based enhanced service-based unsupported low-orbit navigation enhancement system and method |
| CN112817023B (en) * | 2021-01-06 | 2024-03-26 | 西安空间无线电技术研究所 | Non-supported low-rail navigation enhancement system and method based on star-based enhancement service |
| CN113346941A (en) * | 2021-06-02 | 2021-09-03 | 天津(滨海)人工智能军民融合创新中心 | Frequency-rail database pre-reserve compiling method based on system model |
| CN113346941B (en) * | 2021-06-02 | 2023-04-14 | 天津(滨海)人工智能军民融合创新中心 | Frequency-orbit database pre-storage compilation method based on system model |
| CN113777633A (en) * | 2021-08-23 | 2021-12-10 | 山东未来导航科技有限公司 | Positioning method, electronic device and computer storage medium |
| CN114509790A (en) * | 2022-02-17 | 2022-05-17 | 北京国电高科科技有限公司 | Positioning method and positioning system based on low-orbit satellite constellation |
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Application publication date: 20181106 |