WO2005015258A8 - Synthetic aperture radar system and method for local positioning - Google Patents

Synthetic aperture radar system and method for local positioning

Info

Publication number
WO2005015258A8
WO2005015258A8 PCT/US2004/021366 US2004021366W WO2005015258A8 WO 2005015258 A8 WO2005015258 A8 WO 2005015258A8 US 2004021366 W US2004021366 W US 2004021366W WO 2005015258 A8 WO2005015258 A8 WO 2005015258A8
Authority
WO
WIPO (PCT)
Prior art keywords
return signal
landmark
passive reflector
reflecting
passive
Prior art date
Application number
PCT/US2004/021366
Other languages
French (fr)
Other versions
WO2005015258A1 (en
Inventor
Scott A Stephens
Original Assignee
Navcom Tech Inc
Scott A Stephens
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 Navcom Tech Inc, Scott A Stephens filed Critical Navcom Tech Inc
Priority to CA002526930A priority Critical patent/CA2526930A1/en
Priority to JP2006517842A priority patent/JP2007524839A/en
Priority to EP04777487A priority patent/EP1651979B1/en
Priority to AU2004262802A priority patent/AU2004262802B2/en
Priority to BRPI0411076-5A priority patent/BRPI0411076A/en
Priority to DE602004014278T priority patent/DE602004014278D1/en
Publication of WO2005015258A1 publication Critical patent/WO2005015258A1/en
Publication of WO2005015258A8 publication Critical patent/WO2005015258A8/en

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/08Systems for measuring distance only
    • G01S13/10Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/18Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein range gates are used
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/74Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/87Combinations of radar systems, e.g. primary radar and secondary radar
    • G01S13/876Combination of several spaced transponders or reflectors of known location for determining the position of a receiver
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S7/00Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/024Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
    • G01S7/026Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects involving the transmission of elliptically or circularly polarised waves
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/46Indirect determination of position data
    • G01S2013/466Indirect determination of position data by Trilateration, i.e. two antennas or two sensors determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the antennas or sensors, the position data of the target is determined
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/02Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06Systems determining position data of a target
    • G01S13/46Indirect determination of position data
    • G01S2013/468Indirect determination of position data by Triangulation, i.e. two antennas or two sensors determine separately the bearing, direction or angle to a target, whereby with the knowledge of the baseline length, the position data of the target is determined

Abstract

A positioning system includes a passive, isotropic reflecting landmark at a fixed position and a device. The device transmits an electromagnetic pulse having a circular polarization and receives a return signal over a period of time. The return signal includes a reflected pulse from the reflecting landmark. The processes the return signal to isolate the reflected pulse from the return signal and to determine a range from the device to the reflecting landmark. The reflecting landmark includes a first passive reflector, a second passive reflector, and a static structure configured to statically position the second passive reflector at an angle relative to the first passive reflector. The device optionally moves in a particular direction while receiving the return signal, detects a Doppler shift in the reflected pulse portion of the return signal, and determines an angle between the particular direction and, a straight line between the device and the landmark.
PCT/US2004/021366 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning WO2005015258A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA002526930A CA2526930A1 (en) 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning
JP2006517842A JP2007524839A (en) 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning
EP04777487A EP1651979B1 (en) 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning
AU2004262802A AU2004262802B2 (en) 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning
BRPI0411076-5A BRPI0411076A (en) 2003-07-03 2004-06-29 method of determining the position of a device relative to a landmark, and positioning system
DE602004014278T DE602004014278D1 (en) 2003-07-03 2004-06-29 RADAR SYSTEM WITH SYNTHETIC APERTURE AND METHOD FOR LOCAL POSITION DETERMINATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/614,097 2003-07-03
US10/614,097 US7250901B2 (en) 2003-07-03 2003-07-03 Synthetic aperture radar system and method for local positioning

Publications (2)

Publication Number Publication Date
WO2005015258A1 WO2005015258A1 (en) 2005-02-17
WO2005015258A8 true WO2005015258A8 (en) 2006-10-19

Family

ID=34135455

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/021366 WO2005015258A1 (en) 2003-07-03 2004-06-29 Synthetic aperture radar system and method for local positioning

Country Status (11)

Country Link
US (2) US7250901B2 (en)
EP (1) EP1651979B1 (en)
JP (1) JP2007524839A (en)
CN (1) CN1820212A (en)
AT (1) ATE397757T1 (en)
AU (1) AU2004262802B2 (en)
BR (1) BRPI0411076A (en)
CA (1) CA2526930A1 (en)
DE (1) DE602004014278D1 (en)
ES (1) ES2305853T3 (en)
WO (1) WO2005015258A1 (en)

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Also Published As

Publication number Publication date
DE602004014278D1 (en) 2008-07-17
CA2526930A1 (en) 2005-02-17
CN1820212A (en) 2006-08-16
ES2305853T3 (en) 2008-11-01
ATE397757T1 (en) 2008-06-15
US20050088335A1 (en) 2005-04-28
EP1651979A1 (en) 2006-05-03
US20050168381A1 (en) 2005-08-04
WO2005015258A1 (en) 2005-02-17
EP1651979B1 (en) 2008-06-04
JP2007524839A (en) 2007-08-30
US7385551B2 (en) 2008-06-10
US7250901B2 (en) 2007-07-31
AU2004262802A1 (en) 2005-02-17
AU2004262802B2 (en) 2009-08-27
BRPI0411076A (en) 2006-08-01

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