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GB1056753A - Improvements in or relating to doppler radar systems - Google Patents

Improvements in or relating to doppler radar systems

Info

Publication number
GB1056753A
GB1056753A GB4062663A GB4062663A GB1056753A GB 1056753 A GB1056753 A GB 1056753A GB 4062663 A GB4062663 A GB 4062663A GB 4062663 A GB4062663 A GB 4062663A GB 1056753 A GB1056753 A GB 1056753A
Authority
GB
United Kingdom
Prior art keywords
pulse
long
phase
pulses
shift networks
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
GB4062663A
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
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 Alcatel SA filed Critical Alcatel SA
Publication of GB1056753A publication Critical patent/GB1056753A/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
    • G01S13/06—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
    • G01S13/282—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 a frequency modulated 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
    • G01S13/58—Velocity or trajectory determination systems; Sense-of-movement determination systems
    • G01S13/581—Velocity or trajectory determination systems; Sense-of-movement determination systems using transmission of interrupted pulse 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)

Abstract

1,056,753. Pulse radar. SOC. ALSACIENNE DE CONSTRUCTIONS ATOMIQUES, DE TELECOMMUNICATIONS ET ELECTRONIQUE, EN ABREGE "ALCATEL." Oct. 5, 1963 [Oct. 16, 1962], No. 40626/63. Heading H4D. In a pulse radar a short pulse (e.g. 0À2 Ás.) of carrier wave is applied to two phase-shift networks, both having a group propagation time linear with frequency but that of one being of opposite slope to that of the other, the ensuing long (e.g. 200 Ás.) frequency-modulated pulses are gated such that an initial portion of one long pulse and a final portion of the other long pulse are amplified and radiated (the portions being e.g. each 10 Ás. long), the echo pulses are fed to respective phase-shift networks such that they are time-compressed, and the time interval between the compressed pulses is measured to give target radial velocity. The phase-shift networks are of the resistance-capacitance type.
GB4062663A 1962-10-16 1963-10-15 Improvements in or relating to doppler radar systems Expired GB1056753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR912442A FR1346316A (en) 1962-10-16 1962-10-16 Method and device for measuring radial velocities by doppler radar

Publications (1)

Publication Number Publication Date
GB1056753A true GB1056753A (en) 1967-01-25

Family

ID=8788825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4062663A Expired GB1056753A (en) 1962-10-16 1963-10-15 Improvements in or relating to doppler radar systems

Country Status (3)

Country Link
DE (1) DE1261567B (en)
FR (1) FR1346316A (en)
GB (1) GB1056753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626855A (en) * 1980-09-27 1986-12-02 The Marconi Company Limited Radar, sonar and similar systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626855A (en) * 1980-09-27 1986-12-02 The Marconi Company Limited Radar, sonar and similar systems

Also Published As

Publication number Publication date
DE1261567B (en) 1968-02-22
FR1346316A (en) 1963-12-20

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