GB1357457A - Doppler radar system - Google Patents

Doppler radar system

Info

Publication number
GB1357457A
GB1357457A GB1324173A GB1324173A GB1357457A GB 1357457 A GB1357457 A GB 1357457A GB 1324173 A GB1324173 A GB 1324173A GB 1324173 A GB1324173 A GB 1324173A GB 1357457 A GB1357457 A GB 1357457A
Authority
GB
United Kingdom
Prior art keywords
radar system
doppler radar
march
mullard
heading
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
Application number
GB1324173A
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.)
Philips Components Ltd
Original Assignee
Mullard 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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB1324173A priority Critical patent/GB1357457A/en
Priority to GB1281172A priority patent/GB1357456A/en
Publication of GB1357457A publication Critical patent/GB1357457A/en
Expired 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/62—Sense-of-movement determination
    • 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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/583—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of continuous unmodulated waves, amplitude-, frequency-, or phase-modulated waves and based upon the Doppler effect resulting from movement of targets

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)
  • Burglar Alarm Systems (AREA)

Abstract

1357457 Radar MULLARD Ltd 20 March 1973 [20 March 1972] 13241/73 Divided out of 1357456 Heading H4D The description is included in Specification 1,357,456 but the claims relate to the phase detection and the determination of the sense of target movement.
GB1324173A 1972-03-20 1972-03-20 Doppler radar system Expired GB1357457A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1324173A GB1357457A (en) 1972-03-20 1972-03-20 Doppler radar system
GB1281172A GB1357456A (en) 1972-03-20 1972-03-20 Doppler radar system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1324173A GB1357457A (en) 1972-03-20 1972-03-20 Doppler radar system
GB1281172A GB1357456A (en) 1972-03-20 1972-03-20 Doppler radar system

Publications (1)

Publication Number Publication Date
GB1357457A true GB1357457A (en) 1974-06-19

Family

ID=26249281

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1324173A Expired GB1357457A (en) 1972-03-20 1972-03-20 Doppler radar system
GB1281172A Expired GB1357456A (en) 1972-03-20 1972-03-20 Doppler radar system

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1281172A Expired GB1357456A (en) 1972-03-20 1972-03-20 Doppler radar system

Country Status (1)

Country Link
GB (2) GB1357457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601352A1 (en) * 1975-11-28 1977-06-02 Patelhold Patentverwertung Detection method for direction of motion using doppler speedometer - involves part of transmitter frequency mixed with reflected signal and use of flip flop for tripping
FR2384268A1 (en) * 1977-03-14 1978-10-13 Philips Nv RADAR DEVICE OPERATING BY DOPPLER EFFECT

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3760918B2 (en) 2003-01-21 2006-03-29 株式会社日立製作所 Security system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2601352A1 (en) * 1975-11-28 1977-06-02 Patelhold Patentverwertung Detection method for direction of motion using doppler speedometer - involves part of transmitter frequency mixed with reflected signal and use of flip flop for tripping
FR2384268A1 (en) * 1977-03-14 1978-10-13 Philips Nv RADAR DEVICE OPERATING BY DOPPLER EFFECT

Also Published As

Publication number Publication date
GB1357456A (en) 1974-06-19

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Legal Events

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