CN103777210B - The application method of ionosphere delay corrected parameter, device and terminal - Google Patents
The application method of ionosphere delay corrected parameter, device and terminal Download PDFInfo
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- CN103777210B CN103777210B CN201210403160.1A CN201210403160A CN103777210B CN 103777210 B CN103777210 B CN 103777210B CN 201210403160 A CN201210403160 A CN 201210403160A CN 103777210 B CN103777210 B CN 103777210B
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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
- G01S19/072—Ionosphere corrections
Abstract
The invention provides a kind of application method of ionosphere delay corrected parameter, device and terminal, wherein, the method includes：Terminal obtains multiple ionosphere delay corrected parameter collection；The terminal concentrates one ionosphere delay corrected parameter collection for being applied to region residing for the terminal of selection from multiple ionosphere delay corrected parameters, to be modified to ionosphere delay.Positioning precision is low caused by the present invention is solved the problems, such as in correlation technique due to using same ionospheric model and ionosphere delay corrected parameter in global range, so as to improve positioning precision.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of application method, the device of ionosphere delay corrected parameter
And terminal.
Background technology
Beidou satellite navigation system（BeiDou（COMPASS）Navigation Satellite System) be China just
In independent development capability, the GPS of independent operating implemented.Beidou satellite navigation system is devoted to Global Subscriber
High-quality positioning, navigation and time service service, including open service and authorization service two ways are provided.Open service is to complete
Ball provides free positioning, tests the speed and time service service, 10 meters of positioning precision, the meter per second of rate accuracy 0.2, the nanosecond of time service precision 10.Award
Power service be for have in high precision, the user of highly reliable satellite navigation demand, there is provided position, test the speed, time service and communication service and
System health information.Beidou satellite navigation system is made up of space segment, ground segment and the part of user segment three, and space segment includes 5
Satellite and 30 non-geo satellites, ground segment several ground such as including master station, injection station and monitoring station
Face station, user segment includes Big Dipper user terminal and the terminal compatible with other satellite navigation systems.Satellite navigation system is weight
The dimensional information's basic installation wanted, large-scale application is prevented in mapping, telecommunications, water conservancy, fishery, communications and transportation, forest at present
The numerous areas such as fire, mitigation disaster relief public safety and military affairs, it is closely bound up with national security.
An important indicator for weighing satellite fix performance is positioning precision, and global position system precision and space environment
It is connected closely.Used as an important environmental factor, can ionosphere delay be one of Satellite Navigation Technique gross error source, have
Effect ground eliminates or weakens precision and reliability that ionosphere delay error is related to satellite navigation terminal positioning.Current GPS,
The navigational satellite systems such as Galileo broadcast ionosphere delay corrected parameter in navigation message and are repaiied for carrying out ionospheric delay
Just, the ionosphere delay corrected parameter is to global all users（All regions）Effectively.In view of the ground of different geographical on the earth
Reason environment has a larger difference, and the greatest differences of geographical environment will cause the ionosphere characteristic to have obvious difference, in the world
The interior ionosphere that will be unable to embody exactly different zones using same ionospheric model and ionosphere delay corrected parameter
Lag characteristic, leads to not accurately calculate ionosphere delay, so as to have impact on final positioning precision.
For problem at least one above-mentioned in correlation technique, effective solution is not yet proposed at present.
The content of the invention
The invention provides a kind of application method of ionosphere delay corrected parameter, device and terminal, at least to solve phase
Due to using positioning precision caused by same ionospheric model and ionosphere delay corrected parameter in global range in the technology of pass
Low problem.
According to an aspect of the invention, there is provided a kind of application method of ionosphere delay corrected parameter, it includes：Eventually
End obtains multiple ionosphere delay corrected parameter collection；Above-mentioned terminal concentrates selection one to fit from multiple ionosphere delay corrected parameters
For the ionosphere delay corrected parameter collection in region residing for above-mentioned terminal, to be modified to ionosphere delay.
Preferably, above-mentioned terminal obtains multiple above-mentioned ionosphere delay corrected parameter collection one of in the following manner：It is above-mentioned
Terminal receives the navigation message for carrying multiple above-mentioned ionosphere delay corrected parameter collection of aeronautical satellite broadcast；Above-mentioned terminal connects
Receive the positioning auxiliary information for carrying multiple above-mentioned ionosphere delay corrected parameter collection that mobile communications network is propagated.
Preferably, the identical or different area of application scope of each above-mentioned ionosphere delay corrected parameter collection correspondence.
Preferably, above-mentioned terminal determines that each above-mentioned ionosphere delay corrected parameter collection is corresponding one of in the following manner
Area of application scope：Instruction in above-mentioned navigation message is corresponding to determine each above-mentioned ionosphere delay corrected parameter collection
Area of application scope；The corresponding area of application model of each above-mentioned ionosphere delay corrected parameter collection is determined according to standard convention
Enclose；Instruction in above-mentioned positioning auxiliary information is corresponding applicable to determine each above-mentioned ionosphere delay corrected parameter collection
Area's scope.
Preferably, above-mentioned area of application scope includes one below scope：One or more geographic areas；The all areas in the whole world
Domain.
Preferably, above-mentioned terminal concentrates selection one to be applied to residing for above-mentioned terminal from multiple ionosphere delay corrected parameters
The ionosphere delay corrected parameter collection in region includes：The different ionosphere mould of each above-mentioned ionosphere delay corrected parameter collection correspondence
Type, wherein, the different ionosphere delay computational methods of different ionospheric model correspondences, above-mentioned terminal is according at least one of
Information selects an ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal：The ground that above-mentioned terminal is presently in
Reason area information；Default ionospheric model information；The ionospheric model information indicated in above-mentioned positioning auxiliary information.
Preferably, above-mentioned terminal selects ionosphere delay amendment according to the geographical area information that above-mentioned terminal is presently in
In the case of parameter set, when the geographic area correspondence multiple ionosphere delay corrected parameter collection that above-mentioned terminal is presently in, from
Above-mentioned multiple ionosphere delay corrected parameters concentrate the minimum ionosphere delay corrected parameter collection of selection area of application scope.
Preferably, above-mentioned terminal determines the geographic area letter that above-mentioned terminal is presently in by least one of information
Breath：The predeterminable area information of above-mentioned terminal；The network identity of above-mentioned mobile communications network；The position being calculated before above-mentioned terminal
Confidence ceases.
Preferably, different ionosphere delay corrected parameter collection possess at least one of feature：Prolong in different ionospheres
The identical or different ionospheric model of slow corrected parameter collection correspondence；Different ionosphere delay corrected parameter collection is individual comprising parameter
Number is identical or different；The parameter value of different ionosphere delay corrected parameter collection is identical or different.
Preferably, above-mentioned terminal concentrates selection one to be applied to residing for above-mentioned terminal from multiple ionosphere delay corrected parameters
The ionosphere delay corrected parameter collection in region includes calculating ionosphere delay：Above-mentioned terminal selection area of application scope is complete
The ionosphere delay corrected parameter collection and ionospheric model in all regions of ball；Ionosphere delay amendment of the above-mentioned terminal according to selection
Parameter set and ionospheric model are calculated first position information；Above-mentioned terminal selects one to fit again according to first position information
Ionosphere delay is calculated for the ionosphere delay corrected parameter collection in region residing for above-mentioned terminal.
According to another aspect of the present invention, there is provided a kind of use device of ionosphere delay corrected parameter, it includes：Obtain
Modulus block, for obtaining multiple ionosphere delay corrected parameter collection；Selecting module, for from multiple ionosphere delay corrected parameters
One ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal of selection is concentrated, to be repaiied to ionosphere delay
Just.
According to another aspect of the invention, there is provided a kind of terminal, it includes above-mentioned any one ionosphere delay amendment
The use device of parameter.
In the present invention, terminal obtains multiple ionosphere delay corrected parameter collection, appeals terminal from multiple ionosphere delays
Corrected parameter concentrates one ionosphere delay corrected parameter collection for being applied to region residing for the terminal of selection, to ionosphere delay
It is modified, with the ionosphere delay amendment for terminal is adapted with geographic area for different geographic area selections
Parameter set calculates ionosphere delay, and then embodies different geographic regions ionosphere delay characteristic, so as to improve positioning accurate
Degree.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of the application method of ionosphere delay corrected parameter according to embodiments of the present invention；
Fig. 2 is the structured flowchart of the use device of ionosphere delay corrected parameter according to embodiments of the present invention；
Fig. 3 is the structured flowchart of the use device of another ionosphere delay corrected parameter according to embodiments of the present invention；
Fig. 4 is another handling process of the application method of ionosphere delay corrected parameter according to embodiments of the present invention
Figure；
Fig. 5 is another handling process of the application method of ionosphere delay corrected parameter according to embodiments of the present invention
Figure；And
Fig. 6 is another handling process of the application method of ionosphere delay corrected parameter according to embodiments of the present invention
Figure.
Specific embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that not conflicting
In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
A kind of application method of ionosphere delay corrected parameter is present embodiments provided, as shown in figure 1, the ionosphere delay
The application method of corrected parameter includes step S102 to step S104.
Step S102：Terminal obtains multiple ionosphere delay corrected parameter collection.
Step S104：The terminal concentrates selection one to be applied to the terminal institute from multiple ionosphere delay corrected parameters
Locate the ionosphere delay corrected parameter collection in region, to be modified to ionosphere delay.
By above-mentioned steps, terminal obtains multiple ionosphere delay corrected parameter collection, and above-mentioned terminal is prolonged from multiple ionospheres
Slow corrected parameter concentrates one ionosphere delay corrected parameter collection for being applied to region residing for the terminal of selection, to prolong to ionosphere
It is modified late, to allow that terminal is repaiied for the ionosphere delay that different geographic area selections is adapted with geographic area
Positive parameter set calculates ionosphere delay, and then embodies different geographic regions ionosphere delay characteristic, so as to improve positioning
Precision.
In order to meet the demand of different application scene, in the preferred embodiment, above-mentioned terminal can be in the following manner
One of obtain multiple above-mentioned ionosphere delay corrected parameter collection：It is multiple above-mentioned that above-mentioned terminal receives carrying for aeronautical satellite broadcast
The navigation message of ionosphere delay corrected parameter collection；What above-mentioned terminal reception mobile communications network was propagated carries multiple above-mentioned electricity
The positioning auxiliary information of absciss layer Deferred Correction parameter set.
In order to improve positioning precision, in the preferred embodiment, each above-mentioned ionosphere delay corrected parameter collection correspondence phase
Same or different area of application scope.The identical or different area of application model of i.e. different ionosphere delay corrected parameter collection correspondences
Enclose, when the corresponding area of application scope of two ionosphere delay corrected parameter collection is identical, two ionosphere delay corrected parameters
Collection can use different ionospheric models, be prolonged with pointedly carrying out ionosphere by different ionization delay computational methods
Amendment late.It is easy to terminal that the ionosphere delay corrected parameter of the geographic range is adapted to according to its current geographical area information selection
Collect to calculate ionosphere delay, to improve the degree of accuracy of ionosphere delay calculating, and then improve positioning precision.
In order to improve the flexibility of this preferred embodiment, the demand of different application scene is met, in the preferred embodiment,
Above-mentioned terminal can one of in the following manner determine the corresponding area of application model of each above-mentioned ionosphere delay corrected parameter collection
Enclose：Instruction in above-mentioned navigation message determines the corresponding area of application model of each above-mentioned ionosphere delay corrected parameter collection
Enclose；The corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection is determined according to standard convention；According to above-mentioned
Instruction in positioning auxiliary information determines the corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection.
Preferably, in the preferred embodiment, the area of application scope of above-mentioned ionosphere delay corrected parameter collection can be wrapped
Include one below scope：One or more geographic areas；The all regions in the whole world.I.e. ionosphere delay corrected parameter collection applicablely
Area's scope is one or more geographic areas, for example, the area such as the Asian-Pacific area, North America, or ionosphere delay corrected parameter
The area of application scope of collection is global all regions.
In order to select the ionosphere delay corrected parameter collection of the current geographic position for being applicable terminal, to improve ionosphere delay
The degree of accuracy of calculating, in the preferred embodiment, there is provided a kind of preferred concentration from multiple ionosphere delay corrected parameters is selected
An ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal is selected, for example, each above-mentioned ionosphere delay is repaiied
The different ionospheric model of positive parameter set correspondence, wherein, the different ionosphere delay calculating side of different ionospheric model correspondences
Method, above-mentioned terminal according at least one of information select one be applied to the terminal residing for region ionosphere delay amendment
Parameter set：The geographical area information that above-mentioned terminal is presently in；Default ionospheric model information；Above-mentioned positioning auxiliary information middle finger
The ionospheric model information shown.
Preferably, in the preferred embodiment, above-mentioned ionospheric model can include but is not limited to following several models：Example
Such as, KLOBUCHAR models, NeQuick models, enhanced KLOBUCHAR models.
In order to further improve the degree of accuracy of ionosphere delay calculating, in the preferred embodiment, above-mentioned terminal is according to upper
In the case of geographical area information that terminal is presently in is stated to select ionosphere delay corrected parameter collection, when above-mentioned terminal is current
When residing geographic area corresponds to multiple ionosphere delay corrected parameter collection, concentrated from the plurality of ionosphere delay corrected parameter and selected
Select the minimum ionosphere delay corrected parameter collection of area of application scope.I.e. when the geographic area that above-mentioned terminal is presently according to it
When information is selected, if there is inclusion relation, terminal selection in the suitable application region of multiple ionosphere delay corrected parameter collection
Suitable application region scope is more accurate（Scope of application minimum）Ionosphere delay corrected parameter collection is used to calculate ionosphere delay
（For example, ionosphere delay corrected parameter collection A is applied to the whole world, ionosphere delay corrected parameter collection B is applied to Asia, is then in
The terminal of Asia scope should select ionosphere delay corrected parameter collection B）.
The geographical location information current in order to accurately determine out above-mentioned terminal, in the preferred embodiment, above-mentioned terminal
The geographical area information that above-mentioned terminal is presently in can be determined by least one of information：The preset areas of above-mentioned terminal
Domain information（For example, time-zone information etc.）；The network identity of above-mentioned mobile communications network（For example, it is believed that the network pair of China Mobile
Answer the Asian-Pacific area）；The positional information being calculated before above-mentioned terminal.
In order to adapt to plurality of application scenes, in the preferred embodiment, different ionosphere delay corrected parameter collection can be with
Possesses at least one of feature：The identical or different ionospheric model of different ionosphere delay corrected parameter collection correspondences；No
Number of the same ionosphere delay corrected parameter collection comprising parameter is identical or different；Different ionosphere delay corrected parameter collection
Parameter value is identical or different.I.e. above-mentioned multiple ionosphere delay corrected parameter collection can correspond to a kind of ionospheric model or divide
Ionospheric model that Dui Ying be not different, it is also possible to which, including identical or different parameter, parameter value can also be identical or different.
In order to further exactly, effectively select an ionosphere delay amendment for being applied to region residing for above-mentioned terminal
Parameter set, in the preferred embodiment, it is upper that above-mentioned terminal concentrates selection one to be applied to from multiple ionosphere delay corrected parameters
State the ionosphere delay corrected parameter collection in region residing for terminal, come ionosphere delay is modified including：Above-mentioned terminal selection
Area of application scope is the ionosphere delay corrected parameter collection and ionospheric model in global all regions；Above-mentioned terminal is according to selection
Ionosphere delay corrected parameter collection and ionospheric model be calculated first position information；Above-mentioned terminal is believed according to first position
Breath selects an ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal again, to be carried out to ionosphere delay
Amendment.
This preferred embodiment provides a kind of use device of preferred ionosphere delay corrected parameter, as shown in Fig. 2 should
The use device of ionosphere delay corrected parameter includes：Acquisition module 202, for obtaining multiple ionosphere delay corrected parameters
Collection；Selecting module 204, is connected to acquisition module 202, for concentrating selection one to be applicable from multiple ionosphere delay corrected parameters
In the ionosphere delay corrected parameter collection in region residing for above-mentioned terminal, to be modified to ionosphere delay.
In above preferred embodiment, acquisition module 202 obtains multiple ionosphere delay corrected parameter collection, selecting module
204 concentrate the ionosphere delay amendment that selection one is applied to region residing for the terminal to join from multiple ionosphere delay corrected parameters
Manifold, to be modified to ionosphere delay, to allow to be adapted with geographic area for different geographic area selections
Ionosphere delay corrected parameter collection calculate ionosphere delay, and then embody different geographic regions ionosphere delay characteristic,
So as to improve positioning precision.
In order to meet the demand of different application scene, in the preferred embodiment, above-mentioned acquisition module 202 can by with
One of under type obtains multiple above-mentioned ionosphere delay corrected parameter collection：Above-mentioned acquisition module 202 receives aeronautical satellite broadcast
Carry the navigation message of multiple above-mentioned ionosphere delay corrected parameter collection；Above-mentioned acquisition module 202 receives mobile communications network
The positioning auxiliary information for carrying multiple above-mentioned ionosphere delay corrected parameter collection propagated.
In order to improve the flexibility of this preferred embodiment, the demand of different application scene is met, in the preferred embodiment,
As shown in figure 3, the use device of above-mentioned ionosphere delay corrected parameter also includes：First determining module 206, for that can pass through
One of in the following manner determines the corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection：According to above-mentioned navigation electricity
Instruction in text determines the corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection；According to standard convention come
Determine the corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection；According to the finger in above-mentioned positioning auxiliary information
Show to determine the corresponding area of application scope of each above-mentioned ionosphere delay corrected parameter collection.
In order to select the ionosphere delay corrected parameter collection of the current geographic position for being applicable terminal, to improve ionosphere delay
The degree of accuracy of calculating, in the preferred embodiment, there is provided a kind of preferred concentration from multiple ionosphere delay corrected parameters is selected
An ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal is selected, for example, each above-mentioned ionosphere delay is repaiied
The different ionospheric model of positive parameter set correspondence, wherein, the different ionosphere delay calculating side of different ionospheric model correspondences
Method, above-mentioned selecting module 204 according at least one of information select one be applied to the terminal residing for region ionosphere
Deferred Correction parameter set：The geographical area information that above-mentioned terminal is presently in；Default ionospheric model information；Above-mentioned positioning auxiliary
The ionospheric model information indicated in information.
In order to further improve the degree of accuracy of ionosphere delay calculating, in the preferred embodiment, above-mentioned selecting module
204, it is additionally operable to the geographic area letter that the terminal according to where the use device of above-mentioned ionosphere delay corrected parameter is presently in
In the case that breath is to select ionosphere delay corrected parameter collection, when the multiple ionization of geographic area correspondence that above-mentioned terminal is presently in
During layer Deferred Correction parameter set, the minimum ionosphere of selection area of application scope is concentrated from the plurality of ionosphere delay corrected parameter
Deferred Correction parameter set.I.e. when the geographical area information being presently according to it is selected, if multiple ionosphere delays
There is inclusion relation in the suitable application region of corrected parameter collection, then the selection of selecting module 204 suitable application region scope is more accurate（It is applicable
Scope minimum）Ionosphere delay corrected parameter collection is used to calculate ionosphere delay（For example, ionosphere delay corrected parameter collection A
Suitable for the whole world, ionosphere delay corrected parameter collection B is applied to Asia, then the terminal in Asia scope should select ionosphere
Deferred Correction parameter set B）.
The geographical location information current in order to accurately determine out above-mentioned terminal, in the preferred embodiment, such as Fig. 3 institutes
Show, the use device of above-mentioned ionosphere delay corrected parameter also includes：Second determining module 208, for can by with
At least one lower information determines the geographical area information that above-mentioned terminal is presently in：The predeterminable area information of above-mentioned terminal（Example
Such as, time-zone information etc.）；The network identity of above-mentioned mobile communications network（For example, it is believed that the network correspondence Asia-Pacific ground of China Mobile
Area）；The positional information being calculated before above-mentioned terminal.
In order to further exactly, effectively select an ionosphere delay amendment for being applied to region residing for above-mentioned terminal
Parameter set, in the preferred embodiment, above-mentioned selecting module 204, it is global all regions to be additionally operable to selection area of application scope
Ionosphere delay corrected parameter collection and ionospheric model；Ionosphere delay amendment ginseng of the above-mentioned selecting module 204 according to selection
Manifold and ionospheric model are calculated first position information；Above-mentioned selecting module 204 is selected again according to first position information
One ionosphere delay corrected parameter collection for being applied to region residing for above-mentioned terminal, to be modified to ionosphere delay.
In the preferred embodiment, a kind of preferred terminal has been put forward, the terminal is prolonged including above-mentioned any one ionosphere
The use device of slow corrected parameter.
Above-mentioned each preferred embodiment is described in detail below in conjunction with accompanying drawing.
In the preferred embodiment, determining the use model of different ionosphere delay corrected parameter collection by protocol conventions
As a example by enclosing, Fig. 4 is another process chart of the application method of ionosphere delay corrected parameter according to embodiments of the present invention,
As shown in figure 4, the flow comprises the following steps：
Step S402：Navigation terminal（Equivalent to above-mentioned terminal）After starting positioning service, start to receive aeronautical satellite transmission
Navigation message.Navigation terminal obtains two sets by decoded navigation text（It is individual) ionosphere delay corrected parameter collection, be respectively
Ionosphere delay corrected parameter collection A and ionosphere delay corrected parameter collection B.Wherein, ionosphere delay corrected parameter collection A includes 8
Individual parameter, correspondence KLOBUCHAR models, ionosphere delay corrected parameter collection B includes 14 parameters, and correspondence is enhanced
KLOBUCHAR models.Navigation related protocol agreement, the global all regions of ionosphere delay corrected parameter collection A correspondences, and ionosphere
The Deferred Correction parameter set B correspondences Asian-Pacific area.
Step S404：Navigation terminal judges to be currently at the Asian-Pacific area according to user setting area information, then navigation terminal
Selection ionosphere delay corrected parameter collection B simultaneously calculates ionosphere delay using enhanced KLOBUCHAR models.
Preferably, in step s 404, navigation terminal can also in the following manner judge its region being presently in：
Above-mentioned terminal judges its region being presently in by the time zone that user is set,
Above-mentioned terminal judges its region being presently in by information such as the network identities in mobile network,（For example, judging
That resident is the mobile network of China Mobile, then it is assumed that be regional）,
Ionosphere delay corrected parameter collection A of the above-mentioned terminal first from correspondence KLOBUCHAR models calculates positional information,
Judge that its region being presently in belongs to Asia-Pacific region, then it is follow-up to use the corresponding ionosphere delay amendment of KLOBUCHAR models
Parameter set B carries out location Calculation.
Preferably, in step s 404, user can also force terminal to use certain ionospheric delay model by configuring.
Preferably, in step S402, user can also obtain ionosphere delay corrected parameter by mobile communications network
Collection.
In the preferred embodiment, determine that different ionosphere delay amendments are joined by the instruction in navigation message with terminal
As a example by the use scope of manifold, Fig. 5 is the another of the application method of ionosphere delay corrected parameter according to embodiments of the present invention
Process chart is planted, as shown in figure 5, the flow comprises the following steps：
Step S502：Navigation terminal（Equivalent to above-mentioned terminal）After starting positioning service, start to receive aeronautical satellite transmission
Navigation message.Navigation terminal obtains three sets by decoded navigation text（It is individual) ionosphere delay corrected parameter collection, be respectively
Ionosphere delay corrected parameter collection A, ionosphere delay corrected parameter collection B, ionosphere delay corrected parameter collection C.Wherein, ionosphere
Deferred Correction parameter set A includes 8 parameters, correspondence KLOBUCHAR models；Ionosphere delay corrected parameter collection B includes 14 ginsengs
Number, the enhanced KLOBUCHAR Model Bs of correspondence；Ionosphere delay corrected parameter collection C includes 14 parameters, and correspondence is enhanced
KLOBUCHAR models.And, navigation message also points out that ionosphere delay corrected parameter collection A is applied to the whole world simultaneously；Prolong in ionosphere
Slow corrected parameter collection B is applied to the Asian-Pacific area；Ionosphere delay corrected parameter collection C is applied to North America.
Step S504：The region decision that navigation terminal is set according to user is in the Asian-Pacific area, then navigation terminal selection electricity
Absciss layer Deferred Correction parameter set B simultaneously calculates ionosphere delay using enhanced KLOBUCHAR models.
Preferably, in step S504, navigation terminal can also in the following manner judge the region being presently in：
Above-mentioned terminal judges its region being presently in by the time zone that user is set,
Above-mentioned terminal judges its region being presently in by information such as the network identities in mobile network,（For example, judging
That resident is the mobile network of China Mobile, then it is assumed that be regional）,
Above-mentioned terminal first calculates positional information from ionosphere delay corrected parameter collection A, judges its area being presently in
Domain belongs to Asia-Pacific region, then subsequently carry out location Calculation using ionosphere delay corrected parameter collection B.
In the preferred embodiment, so that terminal obtains ionosphere delay corrected parameter collection by mobile network as an example, Fig. 6 is
Another process chart of the application method of ionosphere delay corrected parameter according to embodiments of the present invention, as shown in fig. 6, should
Flow comprises the following steps：
Step S602：Navigation terminal（Equivalent to above-mentioned terminal）After starting positioning service, in a mobile network by movement
Communication network receives satellite fix auxiliary information.Wherein, the satellite fix auxiliary information in mobile network can be passed through by base station
The mode of system message is broadcasted in the cell, it is also possible to obtained by way of Signalling exchange with network side by user.Navigation is eventually
Hold the satellite fix assistance messages in mobile network downward（Equivalent to above-mentioned positioning auxiliary information）In obtain three sets（It is individual) electricity
Absciss layer Deferred Correction parameter set, is respectively that ionosphere delay corrected parameter collection A, ionosphere delay corrected parameter collection B, ionosphere are prolonged
Slow corrected parameter collection C.Wherein, ionosphere delay corrected parameter collection A includes 8 parameters, correspondence KLOBUCHAR models；Ionosphere
Deferred Correction parameter set B includes 14 parameters, the enhanced KLOBUCHAR Model Bs of correspondence；Ionosphere delay corrected parameter JiCBao
Containing 14 parameters, the enhanced KLOBUCHAR models of correspondence.And, navigation message is also pointed out simultaneously, ionosphere delay corrected parameter collection
A is applied to the whole world；Ionosphere delay corrected parameter collection B is applied to the Asian-Pacific area；Ionosphere delay corrected parameter collection C is applied to north
America.
Step S604：The region decision that navigation terminal is set according to user is in the Asian-Pacific area, then navigation terminal selection electricity
Absciss layer Deferred Correction parameter set B simultaneously calculates ionosphere delay using enhanced KLOBUCHAR models.
Preferably, in step s 604, navigation terminal can also in the following manner judge its region being presently in：
Above-mentioned terminal judges its region being presently in by the time zone that user is set
Above-mentioned terminal judges its region being presently in by information such as the network identities in mobile network,（For example, judging
That resident is the mobile network of China Mobile, then it is assumed that be regional）,
Above-mentioned terminal first calculates positional information from ionosphere delay corrected parameter collection A, judges its area being presently in
Domain belongs to Asia-Pacific region, then subsequently carry out location Calculation using ionosphere delay corrected parameter collection B.
As can be seen from the above description, above preferred embodiment realizes following technique effect：Terminal obtains multiple
Ionosphere delay corrected parameter collection, appeal terminal concentrates selection one to be applied to the terminal from multiple ionosphere delay corrected parameters
The ionosphere delay corrected parameter collection in residing region calculates ionosphere delay, to allow that terminal is directed to different geography
Ionosphere delay corrected parameter collection that regional choice and geographic area are adapted calculates ionosphere delay, and then embodies difference
Geographic area ionosphere delay characteristic, so as to improve positioning precision.
Obviously, those skilled in the art should be understood that above-mentioned of the invention each module or each step can be with general
Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and constituted
Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to they are stored
Performed by computing device in the storage device, and in some cases, can be with different from shown in order execution herein
The step of going out or describe, or they are fabricated to each integrated circuit modules respectively, or by the multiple modules in them or
Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (11)
1. a kind of application method of ionosphere delay corrected parameter, it is characterised in that including：
Terminal obtains multiple ionosphere delay corrected parameter collection；
The terminal concentrates one ionization for being applied to region residing for the terminal of selection from multiple ionosphere delay corrected parameters
Layer Deferred Correction parameter set, to be modified to ionosphere delay；
The terminal concentrates one ionization for being applied to region residing for the terminal of selection from multiple ionosphere delay corrected parameters
Layer Deferred Correction parameter set includes：The different ionospheric model of each ionosphere delay corrected parameter collection correspondence, wherein, no
The different ionosphere delay computational methods of same ionospheric model correspondence, the terminal is according at least one following information selection one
The individual ionosphere delay corrected parameter collection suitable for region residing for the terminal：The geographic area letter that the terminal is presently in
Breath；Default ionospheric model information；The ionospheric model information indicated in positioning auxiliary information.
2. method according to claim 1, it is characterised in that the terminal obtains multiple described one of in the following manner
Ionosphere delay corrected parameter collection：
The terminal receives the navigation message for carrying multiple ionosphere delay corrected parameter collection of aeronautical satellite broadcast；
The positioning for carrying multiple ionosphere delay corrected parameter collection that the terminal receives mobile communications network propagation is auxiliary
Supplementary information.
3. method according to claim 1, it is characterised in that each described ionosphere delay corrected parameter collection correspondence is identical
Or different area of application scopes.
4. method according to claim 3, it is characterised in that the terminal is determined described in each one of in the following manner
The corresponding area of application scope of ionosphere delay corrected parameter collection：
Instruction in navigation message determines the corresponding area of application scope of each described ionosphere delay corrected parameter collection；
The corresponding area of application scope of each described ionosphere delay corrected parameter collection is determined according to standard convention；
Instruction in the positioning auxiliary information is corresponding applicable to determine each described ionosphere delay corrected parameter collection
Geographic coverage.
5. method according to claim 4, it is characterised in that the area of application scope includes one of following scope：
One or more geographic areas；
The all regions in the whole world.
6. method according to claim 5, it is characterised in that the geographic region that the terminal is presently according to the terminal
In the case that domain information is to select ionosphere delay corrected parameter collection, when the geographic area correspondence that the terminal is presently in is multiple
During ionosphere delay corrected parameter collection, selection area of application scope minimum is concentrated from the multiple ionosphere delay corrected parameter
Ionosphere delay corrected parameter collection.
7. method according to claim 6, it is characterised in that the terminal is by least one following information to determine
State the geographical area information that terminal is presently in：
The predeterminable area information of the terminal；
The network identity of mobile communications network；
The positional information being calculated before the terminal.
8. method according to any one of claim 1 to 5, it is characterised in that different ionosphere delay corrected parameters
Collection possesses at least one following characteristics：
The identical or different ionospheric model of different ionosphere delay corrected parameter collection correspondences；
Number of the different ionosphere delay corrected parameter collection comprising parameter is identical or different；
The parameter value of different ionosphere delay corrected parameter collection is identical or different.
9. method according to any one of claim 1 to 5, it is characterised in that the terminal is from multiple ionosphere delays
Corrected parameter concentrates one ionosphere delay corrected parameter collection for being applied to region residing for the terminal of selection, to prolong to ionosphere
Late be modified including：
The terminal selection area of application scope is the ionosphere delay corrected parameter collection and ionospheric model in global all regions；
The terminal is calculated first position information according to the ionosphere delay corrected parameter collection and ionospheric model of selection；
The terminal according to first position information select again one be applied to the terminal residing for the ionosphere delay in region repair
Positive parameter set, to be modified to ionosphere delay.
10. a kind of use device of ionosphere delay corrected parameter, it is characterised in that including：
Acquisition module, for obtaining multiple ionosphere delay corrected parameter collection；
Selecting module, for concentrating one ionization for being applied to region residing for terminal of selection from multiple ionosphere delay corrected parameters
Layer Deferred Correction parameter set, to be modified to ionosphere delay, wherein, each described ionosphere delay corrected parameter collection correspondence
Different ionospheric models, wherein, the different ionosphere delay computational methods of different ionospheric model correspondences；
Wherein, described device be additionally operable to according at least one following information select one be applied to the terminal residing for region electricity
Absciss layer Deferred Correction parameter set：The geographical area information that the terminal is presently in；Default ionospheric model information；Positioning auxiliary
The ionospheric model information indicated in information.
A kind of 11. terminals, it is characterised in that the use device including the ionosphere delay corrected parameter described in claim 10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210403160.1A CN103777210B (en) | 2012-10-22 | 2012-10-22 | The application method of ionosphere delay corrected parameter, device and terminal |
| PCT/CN2013/085063 WO2014063573A1 (en) | 2012-10-22 | 2013-10-11 | Method, device and terminal using ionospheric delay correction parameters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210403160.1A CN103777210B (en) | 2012-10-22 | 2012-10-22 | The application method of ionosphere delay corrected parameter, device and terminal |
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| CN103777210A CN103777210A (en) | 2014-05-07 |
| CN103777210B true CN103777210B (en) | 2017-07-11 |
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| CN105044733B (en) * | 2015-08-24 | 2017-08-11 | 北京空间飞行器总体设计部 | A kind of high-precision aeronautical satellite TGD parameter calibration methods |
| JP6866593B2 (en) * | 2016-09-20 | 2021-04-28 | カシオ計算機株式会社 | Server equipment, calculation methods, data processing terminals, data processing methods, and programs |
| CN110275183B (en) * | 2019-06-18 | 2021-03-09 | 中国科学院国家空间科学中心 | GNSS occultation ionosphere residual error correction method and system based on ionosphere electron density |
| CN113467221B (en) * | 2021-07-13 | 2022-08-19 | 湖南国科微电子股份有限公司 | Satellite navigation time service method, system and related components |
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| FR2858510B1 (en) * | 2003-08-01 | 2005-12-09 | Cit Alcatel | DETERMINATION OF POSITIONS OF MOBILE TERMINALS USING ASSISTANCE DATA TRANSMITTED ON REQUEST |
| KR100685780B1 (en) * | 2004-11-04 | 2007-02-22 | 한국전자통신연구원 | Precise Orbit Determination System and Method Using New Ionosphere Error Correction Method |
| US7116269B2 (en) * | 2005-02-15 | 2006-10-03 | Trimble Navigation, Ltd | Radio and light based three dimensional positioning system |
| JP2007171082A (en) * | 2005-12-26 | 2007-07-05 | Nec Toshiba Space Systems Ltd | Ionosphere delay correction method, ionosphere delay correction system, earth station, and mobile station |
| CN101408607A (en) * | 2008-11-26 | 2009-04-15 | 中国科学院上海技术物理研究所 | Star base reinforced satellite positioning and GPS compatible software receiver system |
| CN101419274B (en) * | 2008-12-08 | 2011-06-29 | 北京航空航天大学 | Method and system for acquiring ionosphere delay error |
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