GB2317519B - Radar - Google Patents

Radar

Info

Publication number
GB2317519B
GB2317519B GB8618647A GB8618647A GB2317519B GB 2317519 B GB2317519 B GB 2317519B GB 8618647 A GB8618647 A GB 8618647A GB 8618647 A GB8618647 A GB 8618647A GB 2317519 B GB2317519 B GB 2317519B
Authority
GB
United Kingdom
Prior art keywords
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.)
Expired - Fee Related
Application number
GB8618647A
Other versions
GB2317519A (en
GB8618647D0 (en
Inventor
Roger Voles
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.)
EMI Group Electronics Ltd
Original Assignee
Thorn EMI Electronics 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 Thorn EMI Electronics Ltd filed Critical Thorn EMI Electronics Ltd
Priority to GB8618647A priority Critical patent/GB2317519B/en
Priority to IT8748247A priority patent/IT8748247A0/en
Publication of GB8618647D0 publication Critical patent/GB8618647D0/en
Publication of GB2317519A publication Critical patent/GB2317519A/en
Application granted granted Critical
Publication of GB2317519B publication Critical patent/GB2317519B/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
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/24—Systems for measuring distance only using transmission of interrupted, pulse modulated waves using frequency agility of carrier wave
    • 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
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/534—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi based upon amplitude or phase shift resulting from movement of objects, with reference to the surrounding clutter echo signal, e.g. non coherent MTi, clutter referenced MTi, externally coherent MTi
    • 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
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/288—Coherent receivers
    • G01S7/2883—Coherent receivers using FFT processing

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)
GB8618647A 1986-07-30 1986-07-30 Radar Expired - Fee Related GB2317519B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8618647A GB2317519B (en) 1986-07-30 1986-07-30 Radar
IT8748247A IT8748247A0 (en) 1986-07-30 1987-07-29 RADAR

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8618647A GB2317519B (en) 1986-07-30 1986-07-30 Radar

Publications (3)

Publication Number Publication Date
GB8618647D0 GB8618647D0 (en) 1997-11-26
GB2317519A GB2317519A (en) 1998-03-25
GB2317519B true GB2317519B (en) 1998-07-01

Family

ID=10601973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8618647A Expired - Fee Related GB2317519B (en) 1986-07-30 1986-07-30 Radar

Country Status (2)

Country Link
GB (1) GB2317519B (en)
IT (1) IT8748247A0 (en)

Also Published As

Publication number Publication date
GB2317519A (en) 1998-03-25
GB8618647D0 (en) 1997-11-26
IT8748247A0 (en) 1987-07-29

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Legal Events

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

Effective date: 19981001