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GB2249448B - Improvements in or relating to radar systems - Google Patents

Improvements in or relating to radar systems

Info

Publication number
GB2249448B
GB2249448B GB9023619A GB9023619A GB2249448B GB 2249448 B GB2249448 B GB 2249448B GB 9023619 A GB9023619 A GB 9023619A GB 9023619 A GB9023619 A GB 9023619A GB 2249448 B GB2249448 B GB 2249448B
Authority
GB
United Kingdom
Prior art keywords
relating
radar systems
radar
systems
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.)
Expired - Fee Related
Application number
GB9023619A
Other versions
GB2249448A (en
GB9023619D0 (en
Inventor
Adrian George Garrod
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Priority to GB9023619A priority Critical patent/GB2249448B/en
Publication of GB9023619D0 publication Critical patent/GB9023619D0/en
Publication of GB2249448A publication Critical patent/GB2249448A/en
Application granted granted Critical
Publication of GB2249448B publication Critical patent/GB2249448B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G01S13/347—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal using more than one modulation frequency
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB9023619A 1990-10-30 1990-10-30 Improvements in or relating to radar systems Expired - Fee Related GB2249448B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9023619A GB2249448B (en) 1990-10-30 1990-10-30 Improvements in or relating to radar systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9023619A GB2249448B (en) 1990-10-30 1990-10-30 Improvements in or relating to radar systems

Publications (3)

Publication Number Publication Date
GB9023619D0 GB9023619D0 (en) 1991-10-16
GB2249448A GB2249448A (en) 1992-05-06
GB2249448B true GB2249448B (en) 1995-01-25

Family

ID=10684602

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9023619A Expired - Fee Related GB2249448B (en) 1990-10-30 1990-10-30 Improvements in or relating to radar systems

Country Status (1)

Country Link
GB (1) GB2249448B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2688900B1 (en) * 1992-03-20 1994-05-13 Thomson Csf METHOD AND DEVICE FOR DETERMINING THE PASSAGE TO A PRESETTED DISTANCE FROM A REFLECTOR POINT USING THE PROPAGATION TIME OF A CONTINUOUS WAVE.
DE4244608C2 (en) * 1992-12-31 1997-03-06 Volkswagen Ag Radar method carried out by means of a computer for measuring distances and relative speeds between a vehicle and obstacles in front of it
DE4433775A1 (en) * 1994-09-22 1996-03-28 Daimler Benz Ag Pulse radar method
FR2757639B1 (en) * 1996-12-20 1999-03-26 Thomson Csf RADAR FOR DETECTING OBSTACLES IN PARTICULAR FOR MOTOR VEHICLES
FR2775792B1 (en) * 1998-03-03 2000-06-02 Thomson Csf RECEIVER OF A CONTINUOUS WAVE AND FREQUENCY JUMP RADAR
US6067039A (en) * 1998-11-30 2000-05-23 Pacific Design Engineering (1996 ( Ltd. Systems and methods for determining the distance between two locations
EP1253441B1 (en) * 2000-01-28 2010-04-07 Hitachi, Ltd. Distance measuring device
US6744398B1 (en) 2002-04-19 2004-06-01 Derek J. Pyner Distancing and positioning systems and methods
FR2844361B1 (en) * 2002-09-10 2004-11-05 Thales Sa METHOD FOR EXTENDING THE NON-AMBIGUOUS DISTANCE IN FSK RADARS
GB0228731D0 (en) 2002-12-10 2003-01-15 Trw Ltd Frequency shift keying radar with ambiguity detection
DE10259863A1 (en) * 2002-12-20 2004-07-08 Robert Bosch Gmbh Angle scanning radar system
US8190162B2 (en) * 2003-09-15 2012-05-29 Broadcom Corporation Radar detection circuit for a WLAN transceiver
US7142153B2 (en) * 2004-06-08 2006-11-28 Raytheon Company Short pulse/stepped frequency radar system
US8362942B2 (en) 2005-04-14 2013-01-29 L-3 Communications Cyterra Corporation Moving-entity detection
US9063232B2 (en) 2005-04-14 2015-06-23 L-3 Communications Security And Detection Systems, Inc Moving-entity detection
US7345618B1 (en) * 2005-04-14 2008-03-18 L-3 Communications Cyterra Corporation Moving-entity detection
EP2947476B1 (en) 2009-12-18 2018-08-15 L-3 Communications Cyterra Corporation Moving entity detection
US9229102B1 (en) 2009-12-18 2016-01-05 L-3 Communications Security And Detection Systems, Inc. Detection of movable objects
US20140313068A1 (en) * 2011-11-11 2014-10-23 The University Of Melbourne Apparatus and a method for obtaining information about at least one target

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333369A (en) * 1971-06-02 1973-10-10 Bendix Corp Doppler radar system
GB1434532A (en) * 1972-05-03 1976-05-05 Decca Ltd Multiple frequency continuous wave radars
US4689489A (en) * 1982-08-26 1987-08-25 Shell Oil Company Tank gauge system
GB2251752A (en) * 1990-10-17 1992-07-15 Marconi Electronic Devices Radar arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333369A (en) * 1971-06-02 1973-10-10 Bendix Corp Doppler radar system
GB1434532A (en) * 1972-05-03 1976-05-05 Decca Ltd Multiple frequency continuous wave radars
US4689489A (en) * 1982-08-26 1987-08-25 Shell Oil Company Tank gauge system
GB2251752A (en) * 1990-10-17 1992-07-15 Marconi Electronic Devices Radar arrangement

Also Published As

Publication number Publication date
GB2249448A (en) 1992-05-06
GB9023619D0 (en) 1991-10-16

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19961030