CN106950575A - A kind of method for improving ground strengthening system service reliability - Google Patents
A kind of method for improving ground strengthening system service reliability Download PDFInfo
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- CN106950575A CN106950575A CN201710382136.7A CN201710382136A CN106950575A CN 106950575 A CN106950575 A CN 106950575A CN 201710382136 A CN201710382136 A CN 201710382136A CN 106950575 A CN106950575 A CN 106950575A
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- terminal
- strengthening system
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- ground strengthening
- vrs
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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
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
- G01S19/11—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals wherein the cooperating elements are pseudolites or satellite radio beacon positioning system signal repeaters
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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 present invention relates to a kind of method for improving ground strengthening system service reliability, comprise the following steps：Terminal A sends original observed data and general location to ground strengthening system；Ground strengthening system generation VRS data are sent to terminal A；Terminal A carries out relative positioning with differential signal, obtains elaborate position information；Terminal A sends elaborate position information and original observed data to ground strengthening system；The most the superior that ground strengthening system is assessed in both the quality of original observed data and VRS data, selection is sent to terminal B；After terminal B receiving terminals A original observed data or VRS data, relative positioning is carried out, you can obtain high-precision positioning result.The present invention improves the utilization rate of observation data, and ground strengthening system reliability of service is improved while effectively using data, and effectively expands the service range of ground strengthening system.
Description
Technical field
The present invention relates to ground strengthening system, more particularly to a kind of method for improving ground strengthening system service reliability.
Background technology
(the abbreviation of ground strengthening system, i.e. ground-based augmentation systems：GBAS), by providing
Differential corrections signal, can reach the purpose for improving satellite navigation precision；Positioning precision after optimization can be from grade to sub- rice
Level；The system is that the high and new technologies such as satellite positioning tech, computer networking technology, digital communication technology are multi-faceted, depth
The product of crystallization.Ground strengthening system would generally realize generation difference information using VRS (virtual reference station) technology.But it is local
Base strengthening system base station stop spacing is larger or during poor user terminal local environment, the differential service effect that user terminal is obtained compared with
Difference, so that the service range of ground strengthening system is restricted.
The content of the invention
Regarding to the issue above, the present invention proposes a kind of method for improving ground strengthening system service reliability, including following
Step：
(1) terminal A receives satellite-signal, while terminal A connection ground strengthening systems, and by original observed data and outline
Position is sent to ground strengthening system；
(2) ground strengthening system is received after Terminal A requests, according to terminal A general location, generates VRS data, and will
VRS data are sent to terminal A；
(3) terminal A gets the differential signal of ground strengthening system, and carries out relative positioning with differential signal, you can
Obtain elaborate position information；
(4) terminal A sends elaborate position information and original observed data to ground strengthening system with RTCM format；
(5) ground strengthening system is according to terminal B general location, assess terminal B nearby terminal A original observed data and
Most the superior in both the quality of VRS data, selection is sent to terminal B；
(6) after terminal B receiving terminals A original observed data or VRS data, relative positioning is carried out, you can obtain high
The positioning result of precision.
Assessed in step (5) in both the quality of terminal A original observed data and VRS data near terminal B, selection
The method of most the superior is：It is estimated by carrier wave continuity, pseudorange residuals and effective satellite number；Wherein carrier wave continuity is assessed excellent
First level highest, pseudorange residuals are assessed priority and taken second place, and it is minimum that effective satellite number assesses priority.
The beneficial effect that technical solution of the present invention is realized：
Improve observation data utilization rate, effectively using data while improve ground strengthening system service can
By property, and effectively expand the service range of ground strengthening system.
Brief description of the drawings
Fig. 1 is a kind of flow chart for the method for improving ground strengthening system service reliability of the present invention.
Fig. 2 is a kind of physical structure for the method for improving ground strengthening system service reliability of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment, the present invention is expanded on further, the embodiment of the present invention is only to illustrate this hair
The protection domain that bright technical scheme is not intended to limit the present invention.
As shown in Figure 1 and Figure 2, the present invention proposes a kind of method for improving ground strengthening system service reliability, including following
Step：
(1) user 1,2,3,4 ... waits M terminal (hereinafter referred to as terminal A) to receive satellite-signal, while terminal A connections ground
Base strengthening system, and original observed data and general location are sent to ground strengthening system；
(2) ground strengthening system is received after Terminal A requests, according to terminal A general location, generates VRS data, and will
VRS data are sent to terminal A；
(3) terminal A gets the differential signal of ground strengthening system, and carries out relative positioning with differential signal, you can
Obtain elaborate position information；
(4) terminal A sends elaborate position information and original observed data to ground strengthening system with RTCM format；
(5) ground strengthening system is according to user a, and b, c, d ... wait N number of terminal (hereinafter referred to as terminal B) general location, comment
The most the superior estimated in both the quality of terminal A original observed data and VRS data near terminal B, selection is sent to terminal B；
(6) after terminal B receiving terminals A original observed data or VRS data, relative positioning is carried out, you can obtain high
The positioning result of precision.
Assessed in step (5) in both the quality of terminal A original observed data and VRS data near terminal B, selection
The method of most the superior is：It is estimated by carrier wave continuity, pseudorange residuals and effective satellite number；Wherein carrier wave continuity is assessed excellent
First level highest, pseudorange residuals are assessed priority and taken second place, and it is minimum that effective satellite number assesses priority.
Using the above method, ground strengthening system reliability of service and service range can be effectively improved.
The term being related in the present invention is explained as follows：
VRS：VRS is virtual reference station technology, i.e., set up a virtual reference station near user's rover station, and according to
Actual observed value in each network of surrounding on all reference stations calculates the dummy observation on the virtual reference station.Due to virtual sight
Survey station and rover station (being usually several meters to tens meters) closer to the distance, therefore after virtual reference station is established, dynamic subscriber adopts
Just more accurate positioning result can be obtained with conventional RTK technologies by carrying out real-time relative positioning with virtual reference station.
RTCM：The full name international ocean shipping cause radiotechnics committees of RTCM, are International Standards Organization.RTCM in this patent
RTCM SC104 are refered in particular to, are the international ocean shipping cause radiotechnics committee (Radio Technical Commission for
Maritime services) in the GNSS RTCM-Radio Technical Commission for Maritime Services of proposition in November nineteen eighty-three.
Claims (2)
1. a kind of method for improving ground strengthening system service reliability, it is characterised in that comprise the following steps：
(1) terminal A receives satellite-signal, while the terminal A connections ground strengthening system, and by original observed data and outline
Position is sent to the ground strengthening system；
(2) ground strengthening system is received after the Terminal A requests, according to the general location of the terminal A, generates VRS numbers
According to, and the VRS data are sent to the terminal A；
(3) the terminal A gets the differential signal of the ground strengthening system, and relatively fixed with differential signal progress
Position, you can obtain elaborate position information；
(4) the terminal A sends the elaborate position information and the original observed data to the ground with RTCM format
Strengthening system；
(5) ground strengthening system assesses the original of the terminal A near the terminal B according to terminal B general location
Most the superior in both the quality for observation data and the VRS data of beginning, selection is sent to the terminal B；
(6) the terminal B is received after the original observed data or the VRS data of the terminal A, and it is relatively fixed to carry out
Position, you can obtain high-precision positioning result.
2. the method according to claim 1 for improving ground strengthening system service reliability, it is characterised in that the step
(5) both the original observed data and the quality of the VRS data of the terminal A near the terminal B, selection are assessed in
In the method for most the superior be：It is estimated by carrier wave continuity, pseudorange residuals and effective satellite number；Wherein carrier wave is successional
Highest priority is assessed, the assessment priority of pseudorange residuals is taken second place, and the assessment priority of effective satellite number is minimum.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710382136.7A CN106950575A (en) | 2017-05-25 | 2017-05-25 | A kind of method for improving ground strengthening system service reliability |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710382136.7A CN106950575A (en) | 2017-05-25 | 2017-05-25 | A kind of method for improving ground strengthening system service reliability |
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| CN106950575A true CN106950575A (en) | 2017-07-14 |
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| CN201710382136.7A Pending CN106950575A (en) | 2017-05-25 | 2017-05-25 | A kind of method for improving ground strengthening system service reliability |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490459A (en) * | 2018-02-12 | 2018-09-04 | 千寻位置网络有限公司 | Precision is applied to the method and system of GNSS location service with risk balance |
| CN111198394A (en) * | 2018-11-19 | 2020-05-26 | 千寻位置网络有限公司 | Method and device for quickly fixing ambiguity of virtual reference station switching |
| CN111352129A (en) * | 2020-03-24 | 2020-06-30 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
| CN111447550A (en) * | 2020-03-24 | 2020-07-24 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108490459A (en) * | 2018-02-12 | 2018-09-04 | 千寻位置网络有限公司 | Precision is applied to the method and system of GNSS location service with risk balance |
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| CN111352129A (en) * | 2020-03-24 | 2020-06-30 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
| CN111447550A (en) * | 2020-03-24 | 2020-07-24 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
| CN111447550B (en) * | 2020-03-24 | 2021-09-28 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
| CN111352129B (en) * | 2020-03-24 | 2022-05-24 | 广东星舆科技有限公司 | Method and device for monitoring differential quality and computer medium |
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