GB9809039D0 - Direct sequence spread spectrum radar - Google Patents

Direct sequence spread spectrum radar

Info

Publication number
GB9809039D0
GB9809039D0 GBGB9809039.2A GB9809039A GB9809039D0 GB 9809039 D0 GB9809039 D0 GB 9809039D0 GB 9809039 A GB9809039 A GB 9809039A GB 9809039 D0 GB9809039 D0 GB 9809039D0
Authority
GB
United Kingdom
Prior art keywords
spread spectrum
direct sequence
sequence spread
spectrum radar
radar
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.)
Ceased
Application number
GBGB9809039.2A
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.)
Microsemi Semiconductor Ltd
Original Assignee
Mitel Semiconductor 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 Mitel Semiconductor Ltd filed Critical Mitel Semiconductor Ltd
Priority to GBGB9809039.2A priority Critical patent/GB9809039D0/en
Publication of GB9809039D0 publication Critical patent/GB9809039D0/en
Priority to GB9905934A priority patent/GB2337387A/en
Priority to EP99303225A priority patent/EP0953851A3/en
Priority to CA002270337A priority patent/CA2270337A1/en
Ceased 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
    • 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
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • G01S13/284—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses
    • G01S13/288—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses using coded pulses phase modulated
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
    • G01S7/0234—Avoidance by code multiplex
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • 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
    • G01S13/04—Systems determining presence of a target
    • 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/56—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
    • 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
    • G01S13/88—Radar or analogous systems specially adapted for specific applications
    • G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
    • G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles

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)
GBGB9809039.2A 1998-04-29 1998-04-29 Direct sequence spread spectrum radar Ceased GB9809039D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GBGB9809039.2A GB9809039D0 (en) 1998-04-29 1998-04-29 Direct sequence spread spectrum radar
GB9905934A GB2337387A (en) 1998-04-29 1999-03-15 Radar movement sensor
EP99303225A EP0953851A3 (en) 1998-04-29 1999-04-26 Direct sequence spread spectrum radar
CA002270337A CA2270337A1 (en) 1998-04-29 1999-04-28 Direct sequence spread spectrum radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9809039.2A GB9809039D0 (en) 1998-04-29 1998-04-29 Direct sequence spread spectrum radar

Publications (1)

Publication Number Publication Date
GB9809039D0 true GB9809039D0 (en) 1998-06-24

Family

ID=10831104

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9809039.2A Ceased GB9809039D0 (en) 1998-04-29 1998-04-29 Direct sequence spread spectrum radar
GB9905934A Withdrawn GB2337387A (en) 1998-04-29 1999-03-15 Radar movement sensor

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9905934A Withdrawn GB2337387A (en) 1998-04-29 1999-03-15 Radar movement sensor

Country Status (1)

Country Link
GB (2) GB9809039D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7646333B2 (en) 2008-06-04 2010-01-12 Honeywell International Inc. Pseudo-random pulse interval generation in navigation-aiding devices

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605299A (en) * 1955-09-23 1988-07-13 Duncan B S Radar systems
FR2146105B1 (en) * 1971-07-16 1975-10-10 Thomson Csf
GB1605271A (en) * 1975-04-03 1987-06-10 Secr Defence Radio signalling equipment
GB1528829A (en) * 1976-07-15 1978-10-18 Ceskoslovenska Akademie Ved Macroporous polymeric sorbents for chromatography
DE2934790A1 (en) * 1979-08-29 1981-03-12 International Standard Electric Corp., New York, N.Y. RADAR DEVICE FROM WHICH PSEUDOSTATISTICALLY ENCODED SIGNALS ARE EMISSED.
FR2631497B1 (en) * 1988-05-10 1990-07-27 Thomson Csf SPECTRUM COMPRESSION DEVICE FOR A SIGNAL MODULATED ACCORDING TO ANGULAR MODULATION OF 1/2 INDEX AND SPREAD OF SPECTRUM BY DIRECT SEQUENCE, AND DEVICES COMPRISING SUCH A COMPRESSION DEVICE
US5323114A (en) * 1990-07-24 1994-06-21 Nkk Corporation Method and apparatus for obtaining sectional information of the underground by measuring time differences and strength of electromagnetic signals
JP3391886B2 (en) * 1994-04-21 2003-03-31 日本無線株式会社 Automotive radar apparatus using spread spectrum method and method for canceling frequency drift in this apparatus
EP0679906B1 (en) * 1994-04-22 1999-08-25 Mitsubishi Precision Co., Ltd. Apparatus for measuring physical quantities related to relative movement between two objects
CA2127160A1 (en) * 1994-06-30 1995-12-31 Shahrokh Ehsani-Nategh System and method for radar-vision for vehicles in traffic
US5495500A (en) * 1994-08-09 1996-02-27 Intermec Corporation Homodyne radio architecture for direct sequence spread spectrum data reception
JPH0923005A (en) * 1995-07-06 1997-01-21 Mitsubishi Electric Corp Semiconductor device and its manufacture
US5731781A (en) * 1996-05-20 1998-03-24 Delco Electronics Corp. Continuous wave wideband precision ranging radar
JP3166692B2 (en) * 1997-12-09 2001-05-14 日本電気株式会社 Encoding circuit

Also Published As

Publication number Publication date
GB9905934D0 (en) 1999-05-05
GB2337387A (en) 1999-11-17

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)