WO2002068981A3 - Memory reduction method for a dsp-based gps processor - Google Patents

Memory reduction method for a dsp-based gps processor Download PDF

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Publication number
WO2002068981A3
WO2002068981A3 PCT/US2002/003863 US0203863W WO02068981A3 WO 2002068981 A3 WO2002068981 A3 WO 2002068981A3 US 0203863 W US0203863 W US 0203863W WO 02068981 A3 WO02068981 A3 WO 02068981A3
Authority
WO
WIPO (PCT)
Prior art keywords
memory
gps data
switch
dsp
digital gps
Prior art date
Application number
PCT/US2002/003863
Other languages
French (fr)
Other versions
WO2002068981A2 (en
Inventor
Thomas Michael King
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
Application filed by Motorola Inc filed Critical Motorola Inc
Priority to AU2002243914A priority Critical patent/AU2002243914A1/en
Priority to EP02709431A priority patent/EP1379894B1/en
Priority to CN028003764A priority patent/CN1457435B/en
Priority to AT02709431T priority patent/ATE470161T1/en
Priority to DE60236585T priority patent/DE60236585D1/en
Publication of WO2002068981A2 publication Critical patent/WO2002068981A2/en
Publication of WO2002068981A3 publication Critical patent/WO2002068981A3/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
    • G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, 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
    • G01S19/28—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
    • G01S19/35—Constructional details or hardware or software details of the signal processing chain
    • G01S19/37—Hardware or software details of the signal processing chain

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Microcomputers (AREA)

Abstract

A method and apparatus for determining position in a GPS receiver (Fig. 4) is provided according to the invention. The apparatus includes a first switch (402), the first switch (402) receiving a digital GPS data, a first memory (409), a second memory (410) in parallel with the first memory, with the first memory and the second memory selectable by the first switch (402) for filling with the digital GPS data, and a second switch (416) selectable between the first memory (409) and the second memory (410) in order to extract the digital GPS data therefrom, wherein DSP signal processing (140) extracts digital GPS data from the first memory (409) while the second memory (410) is being filled and extracts digital GPS data from the second memory (410) while the first memory is being filled, and wherein the first memory (409) and the second memory (410) allow the digital GPS data to be processed in real time.
PCT/US2002/003863 2001-02-22 2002-02-05 Memory reduction method for a dsp-based gps processor WO2002068981A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2002243914A AU2002243914A1 (en) 2001-02-22 2002-02-05 Memory reduction method for a dsp-based gps processor
EP02709431A EP1379894B1 (en) 2001-02-22 2002-02-05 Memory reduction method for a dsp-based gps processor
CN028003764A CN1457435B (en) 2001-02-22 2002-02-05 Gps receiver device and its data storage device
AT02709431T ATE470161T1 (en) 2001-02-22 2002-02-05 MEMORY REDUCTION METHOD FOR A DSP-BASED GPS PROCESSOR
DE60236585T DE60236585D1 (en) 2001-02-22 2002-02-05 MEMORY REDUCTION PROCESS FOR A DSP BASIC GPS PROCESSOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/791,343 US6583758B2 (en) 2001-02-22 2001-02-22 Memory reduction method for a DSP-based GPS processor
US09/791,343 2001-02-22

Publications (2)

Publication Number Publication Date
WO2002068981A2 WO2002068981A2 (en) 2002-09-06
WO2002068981A3 true WO2002068981A3 (en) 2003-04-24

Family

ID=25153422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/003863 WO2002068981A2 (en) 2001-02-22 2002-02-05 Memory reduction method for a dsp-based gps processor

Country Status (8)

Country Link
US (3) US6583758B2 (en)
EP (2) EP1783511B1 (en)
CN (2) CN1963558B (en)
AT (2) ATE535822T1 (en)
AU (1) AU2002243914A1 (en)
DE (1) DE60236585D1 (en)
TW (1) TW539867B (en)
WO (1) WO2002068981A2 (en)

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US6952573B2 (en) * 2003-09-17 2005-10-04 Motorola, Inc. Wireless receiver with stacked, single chip architecture
US7145487B1 (en) * 2004-02-23 2006-12-05 Sirf Technology, Inc. Signal processing providing lower downsampling losses
US8098765B1 (en) 2004-02-23 2012-01-17 Sirf Technology, Inc. Reducing and sharing computations for GPS signal processing
US7102565B2 (en) * 2004-03-12 2006-09-05 Transport International Pool, Inc. Power saving operation in a GPS-based asset tracking unit
US7358897B2 (en) * 2004-08-16 2008-04-15 Sony Ericsson Mobile Communicatios Ab Apparatus, methods and computer program products for GPS signal acquisition using an adaptive search engine
US20060034354A1 (en) * 2004-08-16 2006-02-16 Camp William O Jr Apparatus, methods and computer program products for positioning system signal processing using parallel computational techniques
US7453956B2 (en) 2004-08-16 2008-11-18 Sony Ericsson Mobile Communications Ab Apparatus, methods and computer program products for signal acquisition using common demodulation templates
US7250904B2 (en) * 2004-10-08 2007-07-31 Motorola, Inc. Navigation satellite acquisition in satellite positioning system receiver
US7428259B2 (en) * 2005-05-06 2008-09-23 Sirf Technology Holdings, Inc. Efficient and flexible GPS receiver baseband architecture
US7283091B1 (en) * 2005-08-08 2007-10-16 Trimble Navigation Limited Radio positioning system for providing position and time for assisting GPS signal acquisition in mobile unit
US7295156B2 (en) * 2005-08-08 2007-11-13 Trimble Navigation Limited Cellphone GPS positioning system
US8752090B2 (en) * 2005-11-30 2014-06-10 Qwest Communications International Inc. Content syndication to set top box through IP network
US8279910B2 (en) * 2006-03-02 2012-10-02 Qualcomm Incorporated Method and apparatus for code space search in a receiver
KR20070095138A (en) * 2006-03-20 2007-09-28 삼성전자주식회사 Up link signal receiving apparatus and method of multiuser detection using successive interference cancellation in wireless ofdma system
KR20070095135A (en) * 2006-03-20 2007-09-28 삼성전자주식회사 Apparatus and control method of inter subcarrier interface suppresion in wireless ofdma system
TWI335994B (en) * 2006-05-23 2011-01-11 Mediatek Inc Satellite search method
JP4151716B2 (en) * 2006-07-21 2008-09-17 セイコーエプソン株式会社 POSITIONING DEVICE, ITS CONTROL METHOD, AND PROGRAM
US8026847B2 (en) * 2006-09-14 2011-09-27 Qualcomm Incorporated System and/or method for acquisition of GNSS signals
KR100812387B1 (en) 2006-12-20 2008-03-11 한국항공우주연구원 System for error compensation of gnss receiver and method for thereof
US8292543B2 (en) * 2008-04-28 2012-10-23 Waste Management, Inc. Multi-planar gas recovery bioreactor
US8081922B2 (en) 2008-05-30 2011-12-20 Qualcomm Incorporated Methods and apparatuses for processing satellite positioning system signals
GB0823329D0 (en) 2008-12-22 2009-01-28 Geotate Bv Position signal sampling method and apparatus
JP2011149925A (en) * 2009-12-22 2011-08-04 Casio Computer Co Ltd Positioning device, positioning method, and program
RU2465615C2 (en) * 2010-12-24 2012-10-27 Государственное образовательное учреждение высшего профессионального образования "Московский государственный технический университет имени Н.Э. Баумана" (МГТУ им. Н.Э. Баумана) Apparatus for determining coordinates and velocity of moving object (versions)
JP6136691B2 (en) * 2013-07-19 2017-05-31 ブラザー工業株式会社 Image forming apparatus
CN111913198B (en) * 2020-08-13 2023-05-30 淮南师范学院 Data processing method and system based on dual-mode navigation SOC (system on chip)
CN116719006B (en) * 2023-08-11 2023-10-20 西安电子科技大学 Satellite-borne passive positioning method and device based on multi-core heterogeneous architecture

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US4928107A (en) * 1988-06-22 1990-05-22 Hitachi, Ltd. Signal receiving method for a user's device in a global positioning system
US5402441A (en) * 1992-08-20 1995-03-28 Japan Radio Co., Ltd. Signal receiver for global positioning system
US5367306A (en) * 1993-06-04 1994-11-22 Hollon Blake D GPS integrated ELT system
US5629708A (en) * 1994-11-01 1997-05-13 Trimble Navigation Limited GPS receiver having an initial adjustment for correcting for drift in reference frequency
US6133874A (en) * 1996-03-08 2000-10-17 Snaptrack, Inc. Method and apparatus for acquiring satellite positioning system signals
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Also Published As

Publication number Publication date
US20020113732A1 (en) 2002-08-22
US20020113733A1 (en) 2002-08-22
EP1783511A3 (en) 2007-05-16
EP1379894A2 (en) 2004-01-14
EP1783511A2 (en) 2007-05-09
AU2002243914A1 (en) 2002-09-12
DE60236585D1 (en) 2010-07-15
WO2002068981A2 (en) 2002-09-06
ATE535822T1 (en) 2011-12-15
CN1963558A (en) 2007-05-16
ATE470161T1 (en) 2010-06-15
CN1457435A (en) 2003-11-19
US6642886B2 (en) 2003-11-04
CN1963558B (en) 2012-06-27
EP1379894A4 (en) 2006-05-24
CN1457435B (en) 2011-06-01
US20020113734A1 (en) 2002-08-22
US6583758B2 (en) 2003-06-24
EP1783511B1 (en) 2011-11-30
TW539867B (en) 2003-07-01
EP1379894B1 (en) 2010-06-02

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