DE69420641T2 - Suchverfahren mit Satelliten zum Verbessern der Zeit für die erste Ortungsbestimmung in einem GPS Empfänger - Google Patents

Suchverfahren mit Satelliten zum Verbessern der Zeit für die erste Ortungsbestimmung in einem GPS Empfänger

Info

Publication number
DE69420641T2
DE69420641T2 DE69420641T DE69420641T DE69420641T2 DE 69420641 T2 DE69420641 T2 DE 69420641T2 DE 69420641 T DE69420641 T DE 69420641T DE 69420641 T DE69420641 T DE 69420641T DE 69420641 T2 DE69420641 T2 DE 69420641T2
Authority
DE
Germany
Prior art keywords
satellites
improve
time
gps receiver
search method
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.)
Expired - Fee Related
Application number
DE69420641T
Other languages
English (en)
Other versions
DE69420641D1 (de
Inventor
Paul W Mcburney
Lynn Weber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trimble Inc
Original Assignee
Trimble Navigation Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Trimble Navigation Ltd filed Critical Trimble Navigation Ltd
Publication of DE69420641D1 publication Critical patent/DE69420641D1/de
Application granted granted Critical
Publication of DE69420641T2 publication Critical patent/DE69420641T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235—Calibration of receiver components
    • 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
    • G01S19/28—Satellite selection
    • 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
    • G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
DE69420641T 1993-07-22 1994-07-07 Suchverfahren mit Satelliten zum Verbessern der Zeit für die erste Ortungsbestimmung in einem GPS Empfänger Expired - Fee Related DE69420641T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/095,953 US5402347A (en) 1993-07-22 1993-07-22 Satellite search methods for improving time to first fix in a GPS receiver

Publications (2)

Publication Number Publication Date
DE69420641D1 DE69420641D1 (de) 1999-10-21
DE69420641T2 true DE69420641T2 (de) 2000-06-08

Family

ID=22254349

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69420641T Expired - Fee Related DE69420641T2 (de) 1993-07-22 1994-07-07 Suchverfahren mit Satelliten zum Verbessern der Zeit für die erste Ortungsbestimmung in einem GPS Empfänger

Country Status (5)

Country Link
US (1) US5402347A (de)
EP (1) EP0635728B1 (de)
JP (1) JP2892941B2 (de)
CA (1) CA2127737A1 (de)
DE (1) DE69420641T2 (de)

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Publication number Publication date
JPH07191127A (ja) 1995-07-28
EP0635728B1 (de) 1999-09-15
DE69420641D1 (de) 1999-10-21
CA2127737A1 (en) 1995-01-23
US5402347A (en) 1995-03-28
EP0635728A1 (de) 1995-01-25
JP2892941B2 (ja) 1999-05-17

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