CA2453819A1 - Apparatus, method, and system of transferring correction information - Google Patents
Apparatus, method, and system of transferring correction information Download PDFInfo
- Publication number
- CA2453819A1 CA2453819A1 CA002453819A CA2453819A CA2453819A1 CA 2453819 A1 CA2453819 A1 CA 2453819A1 CA 002453819 A CA002453819 A CA 002453819A CA 2453819 A CA2453819 A CA 2453819A CA 2453819 A1 CA2453819 A1 CA 2453819A1
- Authority
- CA
- Canada
- Prior art keywords
- physical objects
- correction factors
- predetermined order
- correction
- supplemental
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
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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
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/40—Correcting position, velocity or attitude
-
- 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
- G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/27—Acquisition or tracking or demodulation of signals transmitted by the system creating, predicting or correcting ephemeris or almanac data within the receiver
Abstract
Apparatuses, methods, and systems of transferring correction information are described. In certain implementations, correction factors relate to stored or calculated values, and a correspondence between a correction factor and a value is indicated by a predetermined order of the correction factors. In one application, a method according to an embodiment of the invention is used to transmit correction factors relating to the positions of physical objects. For example, such a method may be used to transmit correction factors relating to the positions of space vehicles within a Global Positioning Satellite ('GPS') system.
Claims (25)
1. A method comprising:
calculating a plurality of correction factors, each correction factor relating to a position of at least a corresponding one among a set of physical objects; and transmitting said plurality of correction factors in a predetermined order, wherein said correspondence of each among said plurality of correction factors with at least one among the set of physical objects is indicated at least in part by said predetermined order.
calculating a plurality of correction factors, each correction factor relating to a position of at least a corresponding one among a set of physical objects; and transmitting said plurality of correction factors in a predetermined order, wherein said correspondence of each among said plurality of correction factors with at least one among the set of physical objects is indicated at least in part by said predetermined order.
2. The method according to claim 1, wherein at least one among said plurality of correction factors relates to a correction to a determination of a position.
3. The method according to claim 1, wherein at least one among said plurality of correction factors relates to a correction to a determination of a position at a predetermined future time.
4. The method according to claim 1, wherein said predetermined order relates to a relative arrangement of the physical objects.
5. The method according to claim 4, wherein said relative arrangement is effective at a future time.
6. The method according to claim 4, wherein said relative arrangement relates to elevation angles of the physical objects.
7. The method according to claim 1, wherein said predetermined order is determined at least in part by a relative order of the elevation angles of the physical objects.
8. The method according to claim 1, wherein at least one among said plurality of correction factors is based at least in part on a signal received from at least one among the set of physical objects.
9. The method according to claim 1, wherein at least one among the set of physical objects is a space vehicle.
10. The method according to claim 1, wherein each among the set of physical objects is a space vehicle, each space vehicle having an identification number relating to a Global Positioning System, and wherein said predetermined order is determined at least in part by a relative order of the identification numbers of the space vehicles.
11. The method according to claim 1, said method further comprising transmitting information relating to a time of validity of said plurality of correction factors.
12. The method according to claim 1, wherein said calculating a plurality of correction factors comprises:
computing a reference position of each among the set of physical objects; and computing a supplemental position of each among the set of physical objects, wherein each among said correction factors is based at least in part on a difference between said corresponding reference and supplemental positions.
computing a reference position of each among the set of physical objects; and computing a supplemental position of each among the set of physical objects, wherein each among said correction factors is based at least in part on a difference between said corresponding reference and supplemental positions.
13. The method according to claim 12, said method further comprising determining the existence of a potential ambiguity between at least two of said reference positions.
14. The method according to claim 13, wherein said potential ambiguity relates to a relation between elevation angles of at least two among the set of physical objects.
15. The method according to claim 13, wherein said potential ambiguity relates to a relation between an elevation mask angle and an elevation angle of at least one among the set of physical objects.
16. The method according to claim 12, wherein each among said reference positions is based at least in part on almanac information, and wherein each among said supplemental positions is based at least in part on ephemeris information.
17. The method according to claim 16, wherein said almanac information is received from at least one of said space vehicles.
18. An apparatus comprising a data storage medium, said data storage medium having machine-readable code stored thereon, the machine-readable code including instructions executable by an array of logic elements, the instructions defining a method including:
calculating a plurality of correction factors, each correction factor relating to a position of at least a corresponding one among a set of physical objects; and transmitting said plurality of correction factors in a predetermined order, wherein said correspondence of each among said plurality of correction factors with at least one among the set of physical objects is indicated at least in part by said predetermined order.
calculating a plurality of correction factors, each correction factor relating to a position of at least a corresponding one among a set of physical objects; and transmitting said plurality of correction factors in a predetermined order, wherein said correspondence of each among said plurality of correction factors with at least one among the set of physical objects is indicated at least in part by said predetermined order.
19 19. The apparatus according to claim 18, wherein said calculating a plurality of correction factors comprises:
computing a reference position of each among the set of physical objects; and computing a supplemental position of each among the set of physical objects, wherein each among said correction factors is based at least in part on a difference between said corresponding reference and supplemental positions.
computing a reference position of each among the set of physical objects; and computing a supplemental position of each among the set of physical objects, wherein each among said correction factors is based at least in part on a difference between said corresponding reference and supplemental positions.
20. An apparatus comprising:
a reference position calculator configured and arranged to calculate a reference position for each among a plurality of physical objects;
a supplemental position calculator configured and arranged to calculate a supplemental position for each among the plurality of physical objects; and a correction factor calculator configured and arranged to receive said reference positions and said supplemental positions and to output a plurality of correction factors in a predetermined order, wherein each correction factor relates to a position of at least a corresponding one among the plurality of physical objects, and wherein said correspondence of each among said plurality of correction factors with at least one among the plurality of physical objects is indicated at least in part by said predetermined order.
a reference position calculator configured and arranged to calculate a reference position for each among a plurality of physical objects;
a supplemental position calculator configured and arranged to calculate a supplemental position for each among the plurality of physical objects; and a correction factor calculator configured and arranged to receive said reference positions and said supplemental positions and to output a plurality of correction factors in a predetermined order, wherein each correction factor relates to a position of at least a corresponding one among the plurality of physical objects, and wherein said correspondence of each among said plurality of correction factors with at least one among the plurality of physical objects is indicated at least in part by said predetermined order.
21. The apparatus according to claim 20, wherein at least one among the set of physical objects is a space vehicle.
22. A system comprising:
a receiver configured and arranged to receive signals from at least one among a plurality of physical objects;
a position determining entity including a reference position calculator configured and arranged to calculate a reference position for each among the plurality of physical objects;
a supplemental position calculator configured and arranged to calculate a supplemental position for each among the plurality of physical objects; and a correction factor calculator configured and arranged to receive said reference positions and said supplemental positions and to output a plurality of correction factors, and a transmitter configured and arranged to transmit the plurality of correction factors, wherein said plurality of correction factors is transmitted in a predetermined order, and wherein each correction factor relates to a position of at least a corresponding one among the plurality of physical objects, and wherein said correspondence of each among said plurality of correction factors with at least one among the plurality of physical objects is indicated at least in part by said predetermined order.
a receiver configured and arranged to receive signals from at least one among a plurality of physical objects;
a position determining entity including a reference position calculator configured and arranged to calculate a reference position for each among the plurality of physical objects;
a supplemental position calculator configured and arranged to calculate a supplemental position for each among the plurality of physical objects; and a correction factor calculator configured and arranged to receive said reference positions and said supplemental positions and to output a plurality of correction factors, and a transmitter configured and arranged to transmit the plurality of correction factors, wherein said plurality of correction factors is transmitted in a predetermined order, and wherein each correction factor relates to a position of at least a corresponding one among the plurality of physical objects, and wherein said correspondence of each among said plurality of correction factors with at least one among the plurality of physical objects is indicated at least in part by said predetermined order.
23. The system according to claim 22, wherein at least one among the set of physical objects is a space vehicle.
24. A method comprising:
receiving information relating to a position of at least one among a set of physical objects;
determining a reference position of one among the set of physical objects, said determining being based at least in part on said information;
receiving a plurality of correction factors in a predetermined order; and applying a corresponding one among said plurality of correction factors to said reference position, wherein said correspondence between said corresponding one among said plurality of correction factors and said reference position is indicated at least in part by said predetermined order.
receiving information relating to a position of at least one among a set of physical objects;
determining a reference position of one among the set of physical objects, said determining being based at least in part on said information;
receiving a plurality of correction factors in a predetermined order; and applying a corresponding one among said plurality of correction factors to said reference position, wherein said correspondence between said corresponding one among said plurality of correction factors and said reference position is indicated at least in part by said predetermined order.
25. The method according to claim 24, wherein at least one among the set of physical objects is a space vehicle.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/910,365 US6778885B2 (en) | 2000-10-16 | 2001-07-20 | Apparatus, method, and system of transferring correction information |
US09/910,365 | 2001-07-20 | ||
PCT/US2002/022862 WO2003008994A2 (en) | 2001-07-20 | 2002-07-19 | Apparatus, method, and system of transferring correction information |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2453819A1 true CA2453819A1 (en) | 2003-01-30 |
CA2453819C CA2453819C (en) | 2011-04-19 |
Family
ID=25428668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2453819A Expired - Fee Related CA2453819C (en) | 2001-07-20 | 2002-07-19 | Apparatus, method, and system of transferring correction information |
Country Status (9)
Country | Link |
---|---|
US (1) | US6778885B2 (en) |
EP (1) | EP1410061A2 (en) |
JP (1) | JP2005526225A (en) |
CN (1) | CN100371733C (en) |
AU (1) | AU2002320619C1 (en) |
CA (1) | CA2453819C (en) |
HK (1) | HK1067181A1 (en) |
IL (2) | IL159806A0 (en) |
WO (1) | WO2003008994A2 (en) |
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US5504492A (en) * | 1994-08-01 | 1996-04-02 | Honeywell Inc. | Look ahead satellite positioning system position error bound monitoring system |
US5913170A (en) * | 1994-11-16 | 1999-06-15 | Highwaymaster Communications, Inc. | Locating system and method using a mobile communications network |
US5731786A (en) * | 1994-12-29 | 1998-03-24 | Trimble Navigation Limited | Compaction of SATPS information for subsequent signal processing |
DE59601731D1 (en) * | 1995-09-01 | 1999-05-27 | Konle Tilmar | SYSTEM FOR DETERMINING THE POSITION OF MOVABLE OBJECTS |
DE19624719A1 (en) * | 1996-06-21 | 1998-01-02 | Claas Ohg | System for determining the position of mobile objects, in particular vehicles |
US5884220A (en) * | 1996-07-16 | 1999-03-16 | Trimble Navigation Limited | Method and apparatus to improve overall performance of a DGPS receiver |
JPH1040479A (en) * | 1996-07-26 | 1998-02-13 | Moriyama Kogyo Kk | Warning device |
JP2861957B2 (en) * | 1996-07-31 | 1999-02-24 | トヨタ自動車株式会社 | Positioning system, fixed station side device and positioning device used in this system |
US5910788A (en) * | 1997-04-17 | 1999-06-08 | Honeywell, Inc. | Predictive approach integrity |
US6061632A (en) * | 1997-08-18 | 2000-05-09 | Trimble Navigation Limited | Receiver with seamless correction capacity |
US6058338A (en) | 1999-02-12 | 2000-05-02 | Qualcomm Incorporated | Method and apparatus for efficient GPS assistance in a communication system |
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2001
- 2001-07-20 US US09/910,365 patent/US6778885B2/en not_active Expired - Fee Related
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2002
- 2002-07-19 CN CNB028146115A patent/CN100371733C/en not_active Expired - Fee Related
- 2002-07-19 CA CA2453819A patent/CA2453819C/en not_active Expired - Fee Related
- 2002-07-19 JP JP2003514281A patent/JP2005526225A/en not_active Withdrawn
- 2002-07-19 IL IL15980602A patent/IL159806A0/en unknown
- 2002-07-19 EP EP02750149A patent/EP1410061A2/en not_active Withdrawn
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2004
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- 2004-12-24 HK HK04110236A patent/HK1067181A1/en not_active IP Right Cessation
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JP2005526225A (en) | 2005-09-02 |
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US6778885B2 (en) | 2004-08-17 |
CA2453819C (en) | 2011-04-19 |
WO2003008994A3 (en) | 2003-07-03 |
IL159806A (en) | 2009-09-22 |
EP1410061A2 (en) | 2004-04-21 |
HK1067181A1 (en) | 2005-04-01 |
CN100371733C (en) | 2008-02-27 |
AU2002320619C1 (en) | 2008-07-31 |
IL159806A0 (en) | 2004-06-20 |
WO2003008994A2 (en) | 2003-01-30 |
CN1537236A (en) | 2004-10-13 |
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