AU2001230860A1 - Multipath propagation detection and avoidance method and system - Google Patents

Multipath propagation detection and avoidance method and system

Info

Publication number
AU2001230860A1
AU2001230860A1 AU2001230860A AU3086001A AU2001230860A1 AU 2001230860 A1 AU2001230860 A1 AU 2001230860A1 AU 2001230860 A AU2001230860 A AU 2001230860A AU 3086001 A AU3086001 A AU 3086001A AU 2001230860 A1 AU2001230860 A1 AU 2001230860A1
Authority
AU
Australia
Prior art keywords
multipath propagation
avoidance method
propagation detection
detection
avoidance
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.)
Abandoned
Application number
AU2001230860A
Inventor
Richard L. Greenspan
Frank E. Mullen
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.)
Charles Stark Draper Laboratory Inc
Original Assignee
Charles Stark Draper Laboratory 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 Charles Stark Draper Laboratory Inc filed Critical Charles Stark Draper Laboratory Inc
Publication of AU2001230860A1 publication Critical patent/AU2001230860A1/en
Abandoned 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
    • G01S19/22—Multipath-related issues
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/003—Bistatic radar systems; Multistatic radar systems
    • 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
    • G01S19/36—Constructional details or hardware or software details of the signal processing chain relating to the receiver frond end
    • 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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/46—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems
    • G01S3/48—Systems for determining direction or deviation from predetermined direction using antennas spaced apart and measuring phase or time difference between signals therefrom, i.e. path-difference systems the waves arriving at the antennas being continuous or intermittent and the phase difference of signals derived therefrom being measured
AU2001230860A 2000-04-19 2001-01-04 Multipath propagation detection and avoidance method and system Abandoned AU2001230860A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/552,501 US6362782B1 (en) 2000-04-19 2000-04-19 Multipath propagation detection and avoidance method and system
US09552501 2000-04-19
PCT/US2001/000377 WO2001081941A1 (en) 2000-04-19 2001-01-04 Multipath propagation detection and avoidance method and system

Publications (1)

Publication Number Publication Date
AU2001230860A1 true AU2001230860A1 (en) 2001-11-07

Family

ID=24205607

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001230860A Abandoned AU2001230860A1 (en) 2000-04-19 2001-01-04 Multipath propagation detection and avoidance method and system

Country Status (3)

Country Link
US (1) US6362782B1 (en)
AU (1) AU2001230860A1 (en)
WO (1) WO2001081941A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1659694B1 (en) * 2002-05-27 2008-07-23 Fujitsu Ltd. A/D converter bias current circuit
AU2002951632A0 (en) * 2002-09-20 2002-10-10 Qx Corporation Pty Ltd A tdma adaptine directional antenna array for multipath mitigation
AU2003901463A0 (en) * 2003-03-31 2003-04-17 Qx Corporation Pty Ltd A method and device for multipath mitigation in positioning systems using clustered positioning signals
US7564402B2 (en) * 2004-07-26 2009-07-21 Drexel University Information gathering using reflected satellite signals
US7973716B2 (en) * 2005-01-19 2011-07-05 The Charles Stark Draper Laboratory, Inc. Systems and methods for transparency mapping using multipath signals
US8279119B2 (en) * 2005-01-19 2012-10-02 The Charles Stark Draper Laboratory, Inc. Systems and methods for transparency mapping using multipath signals
US7679561B2 (en) * 2005-01-19 2010-03-16 The Charles Stark Draper Laboratory, Inc. Systems and methods for positioning using multipath signals
CN101288260A (en) * 2005-01-27 2008-10-15 美商内数位科技公司 Method and system for deriving an encryption key using jointrandomness not shared by others
US20070036353A1 (en) * 2005-05-31 2007-02-15 Interdigital Technology Corporation Authentication and encryption methods using shared secret randomness in a joint channel
US7492314B2 (en) * 2006-12-01 2009-02-17 The Boeing Company User equipment navigation solution with position determination of a navigation signal reflector
EP1970723A1 (en) * 2007-03-16 2008-09-17 GMV Aerospace and Defence S.A. Method for the computation of improved SBAS protection levels valid in non-controlled environments
US8311508B2 (en) * 2007-09-11 2012-11-13 Verizon Patent And Licensing Inc. Wireless enabled device tracking system and method
WO2009039161A2 (en) * 2007-09-18 2009-03-26 The Charles Stark Draper Laboratory, Inc. Systems and methods for transparency mapping using multipath signals
US20160313450A1 (en) * 2015-04-27 2016-10-27 Autoliv Asp, Inc. Automotive gnss real time kinematic dead reckoning receiver
US9817102B1 (en) * 2016-06-10 2017-11-14 Apple Inc. De-weighting of outlier signals in a radio frequency navigation system
US11422224B2 (en) 2020-01-31 2022-08-23 Juniper Networks, Inc. Location determination based on phase differences
US11582710B2 (en) 2020-01-31 2023-02-14 Juniper Networks, Inc. Guided alignment of wireless device orientation
US11696092B2 (en) 2020-01-31 2023-07-04 Juniper Networks, Inc. Multi-wireless device location determination
US11778418B2 (en) 2020-01-31 2023-10-03 Juniper Networks, Inc. Aligned multi-wireless device location determination
CN111003033B (en) * 2020-03-06 2020-06-26 北京全路通信信号研究设计院集团有限公司 Rail transit electronic map management method and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604806A (en) * 1995-01-20 1997-02-18 Ericsson Inc. Apparatus and method for secure radio communication
JP3231624B2 (en) * 1996-05-17 2001-11-26 松下電器産業株式会社 GPS receiver
US6101176A (en) * 1996-07-24 2000-08-08 Nokia Mobile Phones Method and apparatus for operating an indoor CDMA telecommunications system

Also Published As

Publication number Publication date
US6362782B1 (en) 2002-03-26
WO2001081941A1 (en) 2001-11-01

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