CN108964747A - Beidou ground enhances service evaluation method and device - Google Patents
Beidou ground enhances service evaluation method and device Download PDFInfo
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- CN108964747A CN108964747A CN201810893182.8A CN201810893182A CN108964747A CN 108964747 A CN108964747 A CN 108964747A CN 201810893182 A CN201810893182 A CN 201810893182A CN 108964747 A CN108964747 A CN 108964747A
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
Abstract
The disclosure is directed to a kind of Beidou grounds to enhance service evaluation method and device, wherein method includes: to obtain the original observed data of each base station in base station net overlay area；According to the original observed data, the index parameter of each base station is calculated；According to the index parameter of each base station, the service scoring of each base station is calculated；It is scored according to the service of each base station, service evaluation is carried out to the Beidou ground enhancing service of base station net overlay area, obtains the grade of service of base station net overlay area.By the technical solution, service is enhanced to Beidou ground and carries out Real-Time Evaluation, obtain the service quality of Beidou ground enhancing service, guarantees the stability and reliability of the enhancing service of traffic transport industry Beidou ground.
Description
Technical field
This disclosure relates to technical field of satellite navigation more particularly to a kind of Beidou ground enhancing service evaluation method and dress
It sets.
Background technique
With the development of intelligent transportation, demand of the traffic transport industry to high precision position service is higher and higher, common
Satellite navigation and positioning is no longer satisfied the application demand of certain traffic transport industries, need to mention by Beidou ground strengthening system
The positioning accuracy of high conventional satellite navigation realizes traffic fortune to meet the needs of traffic transport industry is to high precision position service
The fine-grained management of defeated industry.Traffic transport industry has the industry characteristic of itself, needs stability, reliability, duration good
Good Beidou ground enhances service, therefore need to enhance service to Beidou ground and evaluate, and can judgement meet communications and transportation
Demand.
Beidou ground strengthening system is usually made of four parts, respectively base station net system, data transmission system, data
Processing system, data broadcasting system.Base station net is made of Beidou continuous operation base station one by one, according to Delaunay tri-
Angle gauge then, forms the triangulation network to cover entire coverage.The main function of base station is real-time acquisition navigational satellite system
Satellite-signal, and signal is sent to data processing system by data transmission system.Data processing system is responsible for base station
Data calculation, generating Beidou ground in real time enhances service data.Data broadcasting system is responsible for the north for generating data processing system
Bucket ground enhancing service is sent to user, and user can realize high-precision positioning.
For stability, the reliability for guaranteeing the enhancing service of traffic transport industry Beidou ground, need to enhance Beidou ground
Service carries out Real-Time Evaluation, obtains the service quality of Beidou ground enhancing service.
Summary of the invention
The embodiment of the present disclosure provides a kind of Beidou ground enhancing service evaluation method and device, enhances Beidou ground and services
Real-Time Evaluation is carried out, the service quality of Beidou ground enhancing service is obtained, guarantees the enhancing service of traffic transport industry Beidou ground
Stability and reliability.
According to the first aspect of the embodiments of the present disclosure, a kind of Beidou ground enhancing service evaluation method, the method are provided
Include:
Obtain the original observed data of each base station in base station net overlay area；
According to the original observed data, the index parameter of each base station is calculated；
According to the index parameter of each base station, the service scoring of each base station is calculated；
It is scored according to the service of each base station, service is enhanced to the Beidou ground of base station net overlay area
Service evaluation is carried out, the grade of service of base station net overlay area is obtained.
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Optionally, the index parameter according to each base station calculates the service scoring of each base station,
Include:
The target value range according to belonging to the numerical value of the numerical value of each index parameter and each index parameter, really
Determine the corresponding service scoring of each index parameter；
According to the corresponding service scoring of each index parameter and the corresponding weighted value of each index parameter, calculate
The service of each base station is scored.
Optionally, described to be scored according to the service of each base station, to the Beidou of base station net overlay area
Ground enhancing service carries out service evaluation, obtains the grade of service of base station net overlay area, comprising:
It is scored according to the service of each base station, it is corresponding flat to calculate all base stations in base station net overlay area
Service scoring；
According to the correspondence between average service scoring and preset service grade and service scoring, the base station is determined
Net the corresponding grade of service in overlay area.
According to the second aspect of an embodiment of the present disclosure, a kind of Beidou ground enhancing service evaluation device, described device are provided
Include:
Module is obtained, for obtaining the original observed data of each base station in base station net overlay area；
First computing module, for calculating the index parameter of each base station according to the original observed data；
Second computing module calculates the clothes of each base station for the index parameter according to each base station
Business scoring；
Evaluation module, for being scored according to the service of each base station, to the north of base station net overlay area
The ground enhancing service that struggles against carries out service evaluation, obtains the grade of service of base station net overlay area.
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Optionally, second computing module includes:
First determines submodule, for according to the numerical value of each index parameter and the numerical value institute of each index parameter
The target value range of category determines the corresponding service scoring of each index parameter；
First computational submodule, for being joined according to each corresponding service scoring of index parameter and each index
The corresponding weighted value of number calculates the service scoring of each base station.
Optionally, the evaluation module includes:
Second computational submodule calculates base station net overlay area for scoring according to the service of each base station
The corresponding average service scoring of interior all base stations；
Second determines submodule, for according between average service scoring and preset service grade and service scoring
It is corresponding, determine the corresponding grade of service in base station net overlay area.
According to the third aspect of an embodiment of the present disclosure, a kind of Beidou ground enhancing service evaluation device is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Obtain the original observed data of each base station in base station net overlay area；
According to the original observed data, the index parameter of each base station is calculated；
According to the index parameter of each base station, the service scoring of each base station is calculated；
It is scored according to the service of each base station, service is enhanced to the Beidou ground of base station net overlay area
Service evaluation is carried out, the grade of service of base station net overlay area is obtained.
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Optionally, the index parameter according to each base station calculates the service scoring of each base station,
Include:
The target value range according to belonging to the numerical value of the numerical value of each index parameter and each index parameter, really
Determine the corresponding service scoring of each index parameter；
According to the corresponding service scoring of each index parameter and the corresponding weighted value of each index parameter, calculate
The service of each base station is scored.
Optionally, described to be scored according to the service of each base station, to the Beidou of base station net overlay area
Ground enhancing service carries out service evaluation, obtains the grade of service of base station net overlay area, comprising:
It is scored according to the service of each base station, it is corresponding flat to calculate all base stations in base station net overlay area
Service scoring；
According to the correspondence between average service scoring and preset service grade and service scoring, the base station is determined
Net the corresponding grade of service in overlay area.
According to a fourth aspect of embodiments of the present disclosure, a kind of computer readable storage medium is provided, calculating is stored thereon with
Machine instruction realizes that Beidou ground described in any one of above-mentioned technical proposal enhances service evaluation side when the instruction is executed by processor
The step of method.
The technical scheme provided by this disclosed embodiment can include the following benefits:
Above-mentioned technical proposal enhances service to Beidou ground and carries out Real-Time Evaluation, obtains the clothes of Beidou ground enhancing service
Business quality guarantees the stability and reliability of the enhancing service of traffic transport industry Beidou ground.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment.
Fig. 2 is step S103 in a kind of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment
Flow chart.
Fig. 3 is step S104 in a kind of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment
Flow chart.
Fig. 4 is a kind of block diagram of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment.
Fig. 5 is the second calculating mould in a kind of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment
The block diagram of block.
Fig. 6 is evaluation module in a kind of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment
Block diagram.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
Fig. 1 is a kind of flow chart of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment.
The embodiment of the present disclosure provides a kind of Beidou ground enhancing service evaluation method, as shown in Figure 1, this method includes step
Rapid S101-S104:
Step S101 obtains the original observed data of each base station in base station net overlay area；
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Step S102 calculates the index parameter of each base station according to the original observed data；
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Data are efficient: refer in statistical time section, the actual amount of data of all observation satellites and gross data amount
Ratio.The effective situation of data that the index reflects the base station will affect base if the effective situation of the data of base station is lower
The service quality at quasi- station.
Multipath effect: in GNSS measurement, the satellite-signal (back wave) reflected by the reverberation near survey station is such as
Fruit enters receiver antenna, just interference will be generated with the signal (direct wave) directly from satellite, so that it is true to deviate observation
Value generates so-called " Multipath Errors ".The calculation formula of multipath effect is as follows:
Wherein, P1、P2For Pseudo-range Observations, L1、L2For carrier phase observation data,It can be asked according to above-mentioned formula
Obtain the multipath effect of each survey station.
Cycle slip ratio: carrier phase actual observed value is made of two parts, integer part and discontented one week decimal
Part.Discontented one week fractional part is an instantaneous measuring value at the observation moment, is the carrier signal and reception by satellite
The part less than one week in the reference oscillator signal of machine difference frequency signal generated, can be by receiver carrier-tracking loop
Phase discriminator measurement.As long as can normally generate difference frequency signal in observation moment above two signal, correctly sight can be obtained
Measured value.And complete cycle counting is quite different, it was tired out one by one until the Current observation moment with counter since the First Observation moment
Complete cycle wave band number in the difference frequency signal accumulated.If certain section of time counting for some reason between two epochs of observation
Device has ceased normal cumulative activation, so that complete cycle be made to count compared with that should have value to lack n weeks, then when counter restores to work normally
Afterwards, the complete cycle part in all carrier phase observation datas will contain same deviation.There is system deviation in this complete cycle counting
And correct phenomenon is still maintained less than the part of a complete cycle and is known as complete cycle jump, abbreviation cycle slip.The method of Detection of Cycle-slip has very
More, be generally divided into following 3 seed type: whether 1. meet change according to carrier phase observation data and its time series of linear combination
Law is judged；2. being examined with other observations；3. being examined with the observation residual error after compensating computation.
Data delay: referring to the delay that original observed data is generated by data transmission system, and be delayed excessive will affect
The timeliness of Beidou ground enhancing service.It can be compared by time tag in data and current correct time, obtain base
The data delay at quasi- station.
Satellite signal-to-noise ratio: referring to the ratio of signal power and noise power, can reflect the intensity of signal, gauge signal
Quality.The environment of signal-to-noise ratio and survey station has critically important relationship, therefore can reflect survey station according to the variation characteristic of signal-to-noise ratio
The feature of environment.
Wherein pRFor signal power, pNFor noise power.
Satellite PDOP value: referring to three-dimensional point dilution of precision, the precision of GNSS positioning depend on observation precision and
The intensity of geometric figure between user and GNSS satellite commonly uses Dilution of Precision DOP (Dilution of Precision) to determine
The intensity of amount ground reflection geometric figure, accuracy of observation then use error m in weight unit0It indicates.After One-Point Location association obtained because
Several gusts of Q are as follows:
So three-dimensional point Dilution of Precision PDOP can be indicated are as follows:
Step S103 calculates the service scoring of each base station according to the index parameter of each base station；
Step S104 scores according to the service of each base station, to the Beidou of base station net overlay area
Base enhancing service carries out service evaluation, obtains the grade of service of base station net overlay area.
In this embodiment, service is enhanced to Beidou ground and carries out Real-Time Evaluation, obtain the clothes of Beidou ground enhancing service
Business quality guarantees the stability and reliability of the enhancing service of traffic transport industry Beidou ground.
Fig. 2 is step S103 in a kind of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment
Flow chart.
As shown in Fig. 2, optional, above-mentioned steps S103 includes step S201-S202:
Step S201, the number of targets according to belonging to the numerical value of the numerical value of each index parameter and each index parameter
It is worth range, determines the corresponding service scoring of each index parameter；
Step S202, according to the corresponding service scoring of each index parameter and the corresponding power of each index parameter
Weight values calculate the service scoring of each base station.
The service scoring formula of each base station are as follows: base station score=∑Index parameter iIndex parameter i score × index parameter
The weighted value of i.Wherein index parameter i refer to data effective percentage, multipath effect, cycle slip ratio, data delay, satellite signal-to-noise ratio,
Satellite PDOP value.It the scoring of each index and is determined as follows with weight.
Data are efficient: the efficient weight of data is 0.2, and full marks are 100 points.Data effective percentage > 99%, then data have
Efficiency score is 100, and data effective percentage is scored at 95 points between 95%-99%, and data effective percentage obtains between 90%-95%
It is divided into 90 points, data effective percentage is scored at 80 points between 80%-90%, and data effective percentage < 80 are scored at 0 point.
Data delay: the weight of data delay is 0.1, and full marks are 100 points.Data delay < 1s is scored at 100 points, delay
95 points are scored in 2-3s, delay score 90 in 3-5s is divided, and delay is scored at 80 points in 5-10s, is delayed in 10-20 seconds
60 points are scored at, if delay is scored at 0 in > 20 seconds.
Satellite signal-to-noise ratio: satellite signal-to-noise ratio weight is 0.1, and full marks are 100 points.If the letter of all frequency points of satellites in view
It makes an uproar and is scored at 100 points than mean value > 45, signal-to-noise ratio mean value is scored at 95 points between 40-45, and signal-to-noise ratio mean value is between 30-40
80 points are scored at, is scored at 60 between signal-to-noise ratio mean value 25-30, if signal-to-noise ratio mean value < 25, are scored at 0.
Multipath effect: multipath effect weight is 0.2, and full marks are 100 points.Each frequency point multipath effect mean value <
0.2, then 100 points are scored at, the multipath effect mean value of each frequency point is scored at 95 points between 0.2-0.3, each frequency point
Multipath effect is scored at 90 points between 0.3-0.4, and the multipath effect of each frequency point score 85 between 0.4-0.5 is divided,
The multipath effect mean value of each frequency point score 80 between 0.5-0.7 is divided, and the multipath effect mean value of each frequency point is in 0.7-
60 points are obtained between 1.0, multipath effect mean value > 1 of each frequency point is scored at 0.
Cycle slip ratio: cycle slip is 0.2 than weight, and full marks are 100 points.The cycle slip ratio of base station is if more than 5000 scores 100, week
It jumps than being scored at 95 points in 4000-5000, cycle slip ratio is scored at 90 points in 2000-3000, and cycle slip ratio is scored in 1000-2000
80 points, cycle slip ratio divides in 500-1000 score 70, and cycle slip ratio is scored at 60 between 100-500, and cycle slip ratio < 100 are scored at 0.
PDOP value: PDOP value weight is 0.2, and full marks 100 divide.The score of the PDOP of base station < 1 100, the PDOP of base station exists
1-2 score 95, the PDOP of base station is in 2-5 score 90, and the PDOP value of base station is scored at 80 in 5-8, the PDOP value of base station
60 are scored in 8-10, if value > 10 PDOP of base station are scored at 0.
Fig. 3 is step S104 in a kind of Beidou ground enhancing service evaluation method shown according to an exemplary embodiment
Flow chart.
As shown in figure 3, optional, above-mentioned steps S104 includes step S301-S302:
Step S301 scores according to the service of each base station, calculates all benchmark in base station net overlay area
Corresponding average service of standing scores；
Step S302 is determined according to the correspondence between average service scoring and preset service grade and service scoring
The corresponding grade of service in base station net overlay area.
The corresponding average service scoring of all base stations in overlay area is netted at calculating benchmark station, is to calculate by following public affairs:
Enhance service score according to the Beidou ground in the region, Assessment for classification is carried out to service quality, if service score >
90, then the grade of service in the region is A, and service score is in 80-90, then the grade of service in the region is B, services score in 60-
Between 80, then the grade of service in the region is C, and service score is < 60, then the grade of service in the region is D.
Following is embodiment of the present disclosure, can be used for executing embodiments of the present disclosure.
Fig. 4 is a kind of block diagram of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment.Such as Fig. 4
Shown, Beidou ground enhancing service evaluation device includes:
Module 41 is obtained, for obtaining the original observed data of each base station in base station net overlay area；
First computing module 42, for calculating the index parameter of each base station according to the original observed data；
Second computing module 43 calculates each base station for the index parameter according to each base station
Service scoring；
Evaluation module 44, for being scored according to the service of each base station, to base station net overlay area
The enhancing service of Beidou ground carries out service evaluation, obtains the grade of service of base station net overlay area.
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Fig. 5 is the second calculating mould in a kind of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment
The block diagram of block.
As shown in figure 5, optional, second computing module 43 includes:
First determines submodule 51, for according to the numerical value of each index parameter and the numerical value of each index parameter
Affiliated target value range determines the corresponding service scoring of each index parameter；
First computational submodule 52, for according to each corresponding service scoring of index parameter and each index
The corresponding weighted value of parameter calculates the service scoring of each base station.
Fig. 6 is evaluation module in a kind of Beidou ground enhancing service evaluation device shown according to an exemplary embodiment
Block diagram.
As shown in fig. 6, optional, the evaluation module 44 includes:
Second computational submodule 61 calculates the base station net area of coverage for scoring according to the service of each base station
The corresponding average service scoring of all base stations in domain；
Second determines submodule 62, for according between average service scoring and preset service grade and service scoring
Correspondence, determine the corresponding grade of service in base station net overlay area.
According to the third aspect of an embodiment of the present disclosure, a kind of Beidou ground enhancing service evaluation device is provided, comprising:
Processor；
Memory for storage processor executable instruction；
Wherein, the processor is configured to:
Obtain the original observed data of each base station in base station net overlay area；
According to the original observed data, the index parameter of each base station is calculated；
According to the index parameter of each base station, the service scoring of each base station is calculated；
It is scored according to the service of each base station, service is enhanced to the Beidou ground of base station net overlay area
Service evaluation is carried out, the grade of service of base station net overlay area is obtained.
Optionally, the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
Optionally, the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
Optionally, the index parameter according to each base station calculates the service scoring of each base station,
Include:
The target value range according to belonging to the numerical value of the numerical value of each index parameter and each index parameter, really
Determine the corresponding service scoring of each index parameter；
According to the corresponding service scoring of each index parameter and the corresponding weighted value of each index parameter, calculate
The service of each base station is scored.
Optionally, described to be scored according to the service of each base station, to the Beidou of base station net overlay area
Ground enhancing service carries out service evaluation, obtains the grade of service of base station net overlay area, comprising:
It is scored according to the service of each base station, it is corresponding flat to calculate all base stations in base station net overlay area
Service scoring；
According to the correspondence between average service scoring and preset service grade and service scoring, the base station is determined
Net the corresponding grade of service in overlay area.
According to a fourth aspect of embodiments of the present disclosure, a kind of computer readable storage medium is provided, calculating is stored thereon with
Machine instruction realizes that Beidou ground described in any one of above-mentioned technical proposal enhances service evaluation side when the instruction is executed by processor
The step of method.
About the device in above-described embodiment, wherein modules execute the concrete mode of operation in related this method
Embodiment in be described in detail, no detailed explanation will be given here.
Those skilled in the art will readily occur to its of the disclosure after considering specification and practicing disclosure disclosed herein
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by following
Claim is pointed out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (10)
1. a kind of Beidou ground enhances service evaluation method, which is characterized in that the described method includes:
Obtain the original observed data of each base station in base station net overlay area；
According to the original observed data, the index parameter of each base station is calculated；
According to the index parameter of each base station, the service scoring of each base station is calculated；
It is scored according to the service of each base station, the Beidou ground enhancing service of base station net overlay area is carried out
Service evaluation obtains the grade of service of base station net overlay area.
2. the method according to claim 1, wherein the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
3. the method according to claim 1, wherein the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
4. according to the method described in claim 3, it is characterized in that, the index parameter according to each base station, meter
Calculate the service scoring of each base station, comprising:
The target value range according to belonging to the numerical value of the numerical value of each index parameter and each index parameter, determines institute
State the corresponding service scoring of each index parameter；
According to the corresponding service scoring of each index parameter and the corresponding weighted value of each index parameter, described in calculating
The service of each base station is scored.
5. method according to claim 1 to 4, which is characterized in that described according to each base station
Service scoring carries out service evaluation to the Beidou ground enhancing service of base station net overlay area, obtains the base station
Net the grade of service of overlay area, comprising:
It is scored according to the service of each base station, calculates the corresponding average clothes of all base stations in base station net overlay area
Business scoring；
According to the correspondence between average service scoring and preset service grade and service scoring, determine that the base station net covers
The corresponding grade of service of cover area.
6. a kind of Beidou ground enhances service evaluation device, which is characterized in that described device includes:
Module is obtained, for obtaining the original observed data of each base station in base station net overlay area；
First computing module, for calculating the index parameter of each base station according to the original observed data；
Second computing module, for the index parameter according to each base station, the service for calculating each base station is commented
Point；
Evaluation module, for being scored according to the service of each base station, to the Beidou of base station net overlay area
Base enhancing service carries out service evaluation, obtains the grade of service of base station net overlay area.
7. device according to claim 6, which is characterized in that the original observed data includes at least one of the following:
Pseudo range observed quantity, carrier phase observed quantity, Doppler measurements and signal-to-noise ratio.
8. device according to claim 6, which is characterized in that the index parameter includes at least one of the following:
Data effective percentage, data delay, satellite PDOP value, cycle slip ratio, satellite signal-to-noise ratio and multipath effect.
9. device according to claim 8, which is characterized in that second computing module includes:
First determines submodule, for according to belonging to the numerical value of the numerical value of each index parameter and each index parameter
Target value range determines the corresponding service scoring of each index parameter；
First computational submodule, for according to each corresponding service scoring of index parameter and each index parameter pair
The weighted value answered calculates the service scoring of each base station.
10. device according to any one of claims 6 to 9, which is characterized in that the evaluation module includes:
Second computational submodule calculates institute in base station net overlay area for scoring according to the service of each base station
There is the corresponding average service scoring of base station；
Second determines submodule, for according to pair between average service scoring and preset service grade and service scoring
It answers, determines the corresponding grade of service in base station net overlay area.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114545463A (en) * | 2021-12-15 | 2022-05-27 | 中国科学院国家授时中心 | Real-time data quality analysis method and system based on Beidou foundation enhancement system |
| CN115220070A (en) * | 2022-07-28 | 2022-10-21 | 国网思极位置服务有限公司 | GNSS reference station running state monitoring system |
| CN115220070B (en) * | 2022-07-28 | 2024-01-09 | 国网思极位置服务有限公司 | GNSS reference station running state monitoring system |
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