IL79901A0 - Apparatus and method for doppler searching in a digital gps receiver - Google Patents

Apparatus and method for doppler searching in a digital gps receiver

Info

Publication number
IL79901A0
IL79901A0 IL79901A IL7990186A IL79901A0 IL 79901 A0 IL79901 A0 IL 79901A0 IL 79901 A IL79901 A IL 79901A IL 7990186 A IL7990186 A IL 7990186A IL 79901 A0 IL79901 A0 IL 79901A0
Authority
IL
Israel
Prior art keywords
gps receiver
digital gps
doppler searching
doppler
searching
Prior art date
Application number
IL79901A
Original Assignee
Motorola Inc
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
Priority claimed from US06/771,755 external-priority patent/US4785463A/en
Priority claimed from US06/771,754 external-priority patent/US4701934A/en
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to IL9488686A priority Critical patent/IL94886A/en
Publication of IL79901A0 publication Critical patent/IL79901A0/en
Priority to IL94886A priority patent/IL94886A0/en

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
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
    • 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
IL79901A 1985-09-03 1986-09-01 Apparatus and method for doppler searching in a digital gps receiver IL79901A0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IL9488686A IL94886A (en) 1985-09-03 1986-09-01 Method for doppler searching in a digital gps receiver
IL94886A IL94886A0 (en) 1985-09-03 1990-06-27 Apparatus and method for doppler searching in a digital gps receiver

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/771,755 US4785463A (en) 1985-09-03 1985-09-03 Digital global positioning system receiver
US06/771,754 US4701934A (en) 1985-09-03 1985-09-03 Method of doppler searching in a digital GPS receiver

Publications (1)

Publication Number Publication Date
IL79901A0 true IL79901A0 (en) 1986-12-31

Family

ID=27118512

Family Applications (1)

Application Number Title Priority Date Filing Date
IL79901A IL79901A0 (en) 1985-09-03 1986-09-01 Apparatus and method for doppler searching in a digital gps receiver

Country Status (7)

Country Link
EP (1) EP0235285A1 (en)
CN (1) CN1005520B (en)
AU (1) AU6597086A (en)
CA (1) CA1260120A (en)
IL (1) IL79901A0 (en)
MX (1) MX164985B (en)
WO (1) WO1987001540A1 (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4894662A (en) * 1982-03-01 1990-01-16 Western Atlas International, Inc. Method and system for determining position on a moving platform, such as a ship, using signals from GPS satellites
US4849961A (en) * 1986-11-21 1989-07-18 Litton Systems, Inc. Fast sequencing demodulation method and apparatus
JPH083525B2 (en) * 1988-10-12 1996-01-17 日本無線株式会社 CPS receiver
JPH073463B2 (en) * 1989-11-22 1995-01-18 パイオニア株式会社 Satellite radio wave capturing method of GPS receiver
US5177490A (en) * 1989-12-12 1993-01-05 Pioneer Electronic Corporation Gps satellite signal tracking system for gps receivers
JPH0738023B2 (en) * 1990-02-13 1995-04-26 パイオニア株式会社 Satellite radio wave capturing method of GPS receiver
US5018165A (en) * 1990-03-21 1991-05-21 Andrew Corporation Communication system using spread spectrum and leaky transmission line
AU643272B2 (en) * 1990-06-04 1993-11-11 Raytheon Company Global positioning system receiver
US5022048A (en) * 1990-07-26 1991-06-04 Unisys Corp. Programmable digital frequency-phase discriminator
US5175557A (en) * 1991-07-18 1992-12-29 Motorola, Inc. Two channel global positioning system receiver
US6023489A (en) * 1995-05-24 2000-02-08 Leica Geosystems Inc. Method and apparatus for code synchronization in a global positioning system receiver
JPH09261128A (en) * 1996-03-22 1997-10-03 Matsushita Electric Ind Co Ltd Spread spectrum communication equipment
US5955986A (en) * 1997-11-20 1999-09-21 Eagle Eye Technologies, Inc. Low-power satellite-based geopositioning system
FI111109B (en) 1999-12-09 2003-05-30 Nokia Corp Method for synchronizing a receiver, location system, receiver and electronic device
FI19992653A (en) 1999-12-09 2001-06-10 Nokia Mobile Phones Ltd A method for synchronizing a receiver and a receiver
US7769076B2 (en) 2001-05-18 2010-08-03 Broadcom Corporation Method and apparatus for performing frequency synchronization
US7567636B2 (en) * 2001-05-18 2009-07-28 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
JP3738766B2 (en) 2003-02-25 2006-01-25 ソニー株式会社 Communication device
JP3804618B2 (en) 2003-02-25 2006-08-02 ソニー株式会社 Communication device
WO2004077692A1 (en) * 2003-02-25 2004-09-10 Roke Manor Research Limited Spread spectrum baseband signal processor with decimation filtering
US7317752B2 (en) 2003-07-11 2008-01-08 Samsung Electronics Co., Ltd. Method and system for locating a GPS correlated peak signal
CN101051081B (en) * 2006-04-05 2011-02-09 中国科学院微电子研究所 Variable gain high sensitivity GPS receiver baseband frequency tracking method
US7899126B2 (en) * 2007-07-27 2011-03-01 Mediatek Inc. Signal receiver and method for estimating residual doppler frequencies of signals thereof
JP4650467B2 (en) 2007-09-26 2011-03-16 セイコーエプソン株式会社 Time correction device and timing device with time correction device
EP3488265A1 (en) * 2016-07-22 2019-05-29 U-blox AG Global navigation satellite system (gnss) signal tracking
CN109586761B (en) * 2018-11-09 2022-01-11 北京航天万源科技有限公司 Tracking demodulation method of high dynamic spread spectrum signal

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548107A (en) * 1968-04-30 1970-12-15 Webb James E Signal processing apparatus for multiplex transmission
US4221005A (en) * 1979-05-21 1980-09-02 Nasa Pseudonoise code tracking loop
US4426712A (en) * 1981-05-22 1984-01-17 Massachusetts Institute Of Technology Correlation system for global position receiver
US4457006A (en) * 1981-11-16 1984-06-26 Sperry Corporation Global positioning system receiver
US4435822A (en) * 1982-05-19 1984-03-06 Sperry Corporation Coherent spread spectrum receiving apparatus
US4494238A (en) * 1982-06-30 1985-01-15 Motorola, Inc. Multiple channel data link system

Also Published As

Publication number Publication date
CN1005520B (en) 1989-10-18
WO1987001540A1 (en) 1987-03-12
CN86105364A (en) 1987-05-20
MX164985B (en) 1992-10-13
AU6597086A (en) 1987-03-24
CA1260120A (en) 1989-09-26
EP0235285A1 (en) 1987-09-09

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Legal Events

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