CA2025964A1 - Recepteur de systeme de localisation mondial a codes p - Google Patents

Recepteur de systeme de localisation mondial a codes p

Info

Publication number
CA2025964A1
CA2025964A1 CA2025964A CA2025964A CA2025964A1 CA 2025964 A1 CA2025964 A1 CA 2025964A1 CA 2025964 A CA2025964 A CA 2025964A CA 2025964 A CA2025964 A CA 2025964A CA 2025964 A1 CA2025964 A1 CA 2025964A1
Authority
CA
Canada
Prior art keywords
code
signal
signals
received
encrypted
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
Application number
CA2025964A
Other languages
English (en)
Other versions
CA2025964C (fr
Inventor
Richard G. Keegan
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.)
DirecTV Group Inc
Original Assignee
Magnavox Government and Industrial Electronics Co
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 Magnavox Government and Industrial Electronics Co filed Critical Magnavox Government and Industrial Electronics Co
Publication of CA2025964A1 publication Critical patent/CA2025964A1/fr
Application granted granted Critical
Publication of CA2025964C publication Critical patent/CA2025964C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01S19/24—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
CA002025964A 1989-09-25 1990-09-21 Recepteur de systeme de localisation mondial a codes p Expired - Lifetime CA2025964C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US412,049 1989-09-25
US07/412,049 US4972431A (en) 1989-09-25 1989-09-25 P-code-aided global positioning system receiver

Publications (2)

Publication Number Publication Date
CA2025964A1 true CA2025964A1 (fr) 1991-03-26
CA2025964C CA2025964C (fr) 2000-04-11

Family

ID=23631377

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002025964A Expired - Lifetime CA2025964C (fr) 1989-09-25 1990-09-21 Recepteur de systeme de localisation mondial a codes p

Country Status (8)

Country Link
US (1) US4972431A (fr)
EP (1) EP0420329B1 (fr)
JP (1) JP2851693B2 (fr)
AU (1) AU637747B2 (fr)
CA (1) CA2025964C (fr)
DE (1) DE69023596T2 (fr)
DK (1) DK0420329T3 (fr)
ES (1) ES2081915T3 (fr)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5019786A (en) * 1989-11-17 1991-05-28 The United States Of America As Represented By The United States Department Of Energy Phase measurement system using a dithered clock
JP2873872B2 (ja) * 1990-09-06 1999-03-24 株式会社ソキア Ｇｐｓにおけるｃ／ａコード除去形周波数ダイバーシティ相関受信方式
US5134407A (en) * 1991-04-10 1992-07-28 Ashtech Telesis, Inc. Global positioning system receiver digital processing technique
US5887020A (en) * 1991-05-13 1999-03-23 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5790587A (en) * 1991-05-13 1998-08-04 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5694414A (en) * 1991-05-13 1997-12-02 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5815525A (en) * 1991-05-13 1998-09-29 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5796772A (en) * 1991-05-13 1998-08-18 Omnipoint Corporation Multi-band, multi-mode spread-spectrum communication system
US5271034A (en) * 1991-08-26 1993-12-14 Avion Systems, Inc. System and method for receiving and decoding global positioning satellite signals
US5274666A (en) * 1991-10-16 1993-12-28 Telephonics Corporation Wireless communication system
EP0544937A1 (fr) * 1991-12-04 1993-06-09 Rohde & Schwarz GmbH & Co. KG Goniomètre à haute fréquence pour véhicules automobiles
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
JP3283913B2 (ja) * 1992-08-20 2002-05-20 日本無線株式会社 Ｇｐｓ受信装置
WO1994011978A1 (fr) * 1992-11-16 1994-05-26 Omnipoint Corporation Etalement du spectre au moyen du decoupage en voies de dix megahertz
US5548293A (en) * 1993-03-24 1996-08-20 Leland Stanford Junior University System and method for generating attitude determinations using GPS
US5583513A (en) * 1993-03-24 1996-12-10 Board Of Trustees Of The Leland Stanford Junior University System and method for generating precise code based and carrier phase position determinations
US5402347A (en) * 1993-07-22 1995-03-28 Trimble Navigation Limited Satellite search methods for improving time to first fix in a GPS receiver
US6094575A (en) * 1993-11-01 2000-07-25 Omnipoint Corporation Communication system and method
US6088590A (en) 1993-11-01 2000-07-11 Omnipoint Corporation Method and system for mobile controlled handoff and link maintenance in spread spectrum communication
WO1995012945A1 (fr) * 1993-11-01 1995-05-11 Omnipoint Corporation Desetalement/demodulation de signaux a spectre etale en sequence directe
US6005856A (en) * 1993-11-01 1999-12-21 Omnipoint Corporation Communication protocol for spread spectrum wireless communication system
US5576715A (en) * 1994-03-07 1996-11-19 Leica, Inc. Method and apparatus for digital processing in a global positioning system receiver
US5535278A (en) * 1994-05-02 1996-07-09 Magnavox Electronic Systems Company Global positioning system (GPS) receiver for recovery and tracking of signals modulated with P-code
US5742635A (en) * 1994-05-05 1998-04-21 Sanconix, Inc. Enhanced time of arrival method
US5495257A (en) * 1994-07-19 1996-02-27 Trimble Navigation Limited Inverse differential corrections for SATPS mobile stations
US6061390A (en) * 1994-09-02 2000-05-09 California Institute Of Technology P-code enhanced method for processing encrypted GPS signals without knowledge of the encryption code
US5659617A (en) * 1994-09-22 1997-08-19 Fischer; Addison M. Method for providing location certificates
US5742583A (en) 1994-11-03 1998-04-21 Omnipoint Corporation Antenna diversity techniques
WO1996027139A1 (fr) * 1995-02-28 1996-09-06 Litton Consulting Group, Inc. Procede et appareil de traitement numerique dans un recepteur de systeme de localisation a l'echelle mondiale (gps)
US5640452A (en) * 1995-04-28 1997-06-17 Trimble Navigation Limited Location-sensitive decryption of an encrypted message
US6023489A (en) * 1995-05-24 2000-02-08 Leica Geosystems Inc. Method and apparatus for code synchronization in a global positioning system receiver
US5754657A (en) * 1995-08-31 1998-05-19 Trimble Navigation Limited Authentication of a message source
US5736961A (en) * 1995-10-06 1998-04-07 Novatel, Inc. Dual Frequency global positioning system
US5708439A (en) * 1995-10-30 1998-01-13 Trimble Navigation Limited Method and apparatus for observing unknown codes on satellite positioning system
US5610984A (en) * 1995-11-22 1997-03-11 Trimble Navigation Limited Optimal L2 tracking in a SPS receiver under encryption without knowledge of encryption timing characteristics
US5986603A (en) * 1996-02-14 1999-11-16 Trimble Navigation Limited Geometric utilization of exact solutions of the pseudorange equations
US6014101A (en) * 1996-02-26 2000-01-11 Trimble Navigation Limited Post-processing of inverse DGPS corrections
US5689271A (en) * 1996-05-03 1997-11-18 Trimble Navigation Limited Method and apparatus for civilian receiver operation with P(Y) code in satellite positioning system receiver
US6061388A (en) * 1996-06-07 2000-05-09 General Electric Company Spread spectrum communication system with frequency-separated message and reference signals
US5805108A (en) * 1996-09-16 1998-09-08 Trimble Navigation Limited Apparatus and method for processing multiple frequencies in satellite navigation systems
US5822429A (en) * 1996-09-17 1998-10-13 Electro-Radiation Incorporated System for preventing global positioning satellite signal reception to unauthorized personnel
DE19639119A1 (de) * 1996-09-24 1998-03-26 Philips Patentverwaltung Elektronisches Gerät mit einem bidirektionalen Drehschalter
US6057876A (en) * 1996-12-18 2000-05-02 General Instrument Corporation Dual conversion settop terminal including a system for avoiding oscillator difference beats
US5995042A (en) * 1997-01-02 1999-11-30 Motorola, Inc. Spoofer detection power management for GPS receivers
US5914686A (en) * 1997-01-11 1999-06-22 Trimble Navigation Limited Utilization of exact solutions of the pseudorange equations
US5768319A (en) * 1997-02-18 1998-06-16 Motorola, Inc. GPS data collection in high noise-to-signal ratio environments
US6493378B1 (en) 1998-01-06 2002-12-10 Topcon Gps Llc Methods and apparatuses for reducing multipath errors in the demodulation of pseudo-random coded signals
US7268700B1 (en) 1998-01-27 2007-09-11 Hoffberg Steven M Mobile communication device
US6816710B2 (en) * 1998-05-06 2004-11-09 Snaptrack, Inc. Method and apparatus for signal processing in a satellite positioning system
DE19824100A1 (de) 1998-05-29 1999-12-23 Mannesmann Vdo Ag Elektronisches Gerät mit einem Drehschalter und einem Anzeigebildschirm
US6125135A (en) * 1998-11-25 2000-09-26 Navcom Technology, Inc. System and method for demodulating global positioning system signals
US7966078B2 (en) 1999-02-01 2011-06-21 Steven Hoffberg Network media appliance system and method
US6947469B2 (en) 1999-05-07 2005-09-20 Intel Corporation Method and Apparatus for wireless spread spectrum communication with preamble processing period
US6954488B1 (en) 1999-10-01 2005-10-11 Trimble Navigation Limited Method and apparatus for improved L2 performance in dual frequency semi-codeless GPS receivers
US6868108B1 (en) * 1999-11-12 2005-03-15 Itt Manufacturing Enterprises, Inc. Method and apparatus for generating and transmitting a stationary dither code
US7177426B1 (en) 2000-10-11 2007-02-13 Digital Authentication Technologies, Inc. Electronic file protection using location
ATE399407T1 (de) * 2000-11-03 2008-07-15 Digital Authentication Technol Schutz einer elektronischen datei unter verwendung des standorts
US7239707B2 (en) * 2000-11-28 2007-07-03 Itt Manufacturing Enterprises, Inc. Staggered pulse acquisition method and apparatus
US6759983B2 (en) 2001-03-28 2004-07-06 Strategic Analysis, Inc. Method and device for precise geolocation of low-power, broadband, amplitude-modulated signals
US7068704B1 (en) * 2001-09-26 2006-06-27 Itt Manufacturing Enterpprises, Inc. Embedded chirp signal for position determination in cellular communication systems
FR2833714B1 (fr) * 2001-12-18 2004-04-02 Thales Sa Procede de traitement d'un signal de navigation contenant des donnees
USH2155H1 (en) 2002-01-28 2006-05-02 The United States Of America As Represented By The Secretary Of The Air Force Downconvert and average identification of biphase coded signal carrier
EP1558944A4 (fr) * 2002-10-04 2008-10-22 Sigtec Navigation Pty Ltd Amelioration apportee a un systeme de positionnement par satellite
US9818136B1 (en) 2003-02-05 2017-11-14 Steven M. Hoffberg System and method for determining contingent relevance
EP1815267B1 (fr) 2004-11-15 2015-06-10 Nanotron Technologies GmbH Procede symetrique a trajets multiples pour determiner la distance entre deux emetteurs-recepteurs
JP4778277B2 (ja) * 2005-07-29 2011-09-21 Ｎｅｃ東芝スペースシステム株式会社 測位信号受信装置及び測位信号受信方法
GB0516096D0 (en) 2005-08-04 2005-09-14 British Broadcasting Corp Exclusive addressing of groups of broadcast satallite receivers within a portion of the satellite footprint
US8044853B2 (en) * 2007-12-20 2011-10-25 Qualcomm Incorporated Navigation receiver
US8300813B1 (en) * 2008-02-02 2012-10-30 The Boeing Company Secure information transfer based on global position
TWI390234B (zh) * 2008-12-26 2013-03-21 Altek Corp Satellite information operation method of global positioning system device
WO2010105136A2 (fr) 2009-03-13 2010-09-16 Cornell University Détection de mystification pour des signaux gnss civils
US7978130B1 (en) * 2009-05-01 2011-07-12 Coherent Navigation, Inc. Practical method for upgrading existing GNSS user equipment with tightly integrated Nav-Com capability
US8395545B2 (en) * 2010-02-09 2013-03-12 Broadcom Corporation Method and system for utilizing reduced functionality processing channels in a GNSS receiver
US9813094B2 (en) * 2012-03-01 2017-11-07 Keysight Technologies, Inc. Wideband receiver
US9507026B2 (en) 2013-05-04 2016-11-29 Trimble Navigation Limited Apparatus for verified antispoofing navigation
CN103675855B (zh) * 2013-11-29 2015-11-04 航天恒星科技有限公司 一种基于码周末尾时刻l1ca引导的gps-p码生成方法
US9923741B2 (en) * 2016-03-24 2018-03-20 The United States Of America As Represented By Secretary Of The Navy Method for detecting presence or absence of phase shift keying modulations

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667203A (en) * 1982-03-01 1987-05-19 Aero Service Div, Western Geophysical Method and system for determining position using signals from satellites
US4870422A (en) * 1982-03-01 1989-09-26 Western Atlas International, Inc. Method and system for determining position from signals from satellites
US4754465A (en) * 1984-05-07 1988-06-28 Trimble Navigation, Inc. Global positioning system course acquisition code receiver
US4785463A (en) * 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
US4701934A (en) * 1985-09-03 1987-10-20 Motorola, Inc. Method of doppler searching in a digital GPS receiver

Also Published As

Publication number Publication date
ES2081915T3 (es) 1996-03-16
EP0420329A3 (en) 1992-07-01
AU637747B2 (en) 1993-06-03
JP2851693B2 (ja) 1999-01-27
EP0420329A2 (fr) 1991-04-03
DK0420329T3 (da) 1996-03-25
CA2025964C (fr) 2000-04-11
AU6307390A (en) 1991-03-28
US4972431A (en) 1990-11-20
DE69023596D1 (de) 1995-12-21
EP0420329B1 (fr) 1995-11-15
JPH03183979A (ja) 1991-08-09
DE69023596T2 (de) 1996-06-13

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry