GB2203304B - Local oscillator systems - Google Patents

Local oscillator systems

Info

Publication number
GB2203304B
GB2203304B GB8708232A GB8708232A GB2203304B GB 2203304 B GB2203304 B GB 2203304B GB 8708232 A GB8708232 A GB 8708232A GB 8708232 A GB8708232 A GB 8708232A GB 2203304 B GB2203304 B GB 2203304B
Authority
GB
United Kingdom
Prior art keywords
local oscillator
oscillator systems
systems
local
oscillator
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 - Lifetime
Application number
GB8708232A
Other versions
GB2203304A (en
GB8708232D0 (en
Inventor
Melvin Gerrard England
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 Varian Ltd
Thorn EMI Varian Ltd
Original Assignee
EMI Varian Ltd
Thorn EMI Varian 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 EMI Varian Ltd, Thorn EMI Varian Ltd filed Critical EMI Varian Ltd
Priority to GB8708232A priority Critical patent/GB2203304B/en
Publication of GB8708232D0 publication Critical patent/GB8708232D0/en
Publication of GB2203304A publication Critical patent/GB2203304A/en
Application granted granted Critical
Publication of GB2203304B publication Critical patent/GB2203304B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
GB8708232A 1987-04-07 1987-04-07 Local oscillator systems Expired - Lifetime GB2203304B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8708232A GB2203304B (en) 1987-04-07 1987-04-07 Local oscillator systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8708232A GB2203304B (en) 1987-04-07 1987-04-07 Local oscillator systems

Publications (3)

Publication Number Publication Date
GB8708232D0 GB8708232D0 (en) 1987-05-13
GB2203304A GB2203304A (en) 1988-10-12
GB2203304B true GB2203304B (en) 1991-08-07

Family

ID=10615350

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8708232A Expired - Lifetime GB2203304B (en) 1987-04-07 1987-04-07 Local oscillator systems

Country Status (1)

Country Link
GB (1) GB2203304B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1447504A (en) * 1973-07-14 1976-08-25 Ferranti Ltd Radar receivers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1447504A (en) * 1973-07-14 1976-08-25 Ferranti Ltd Radar receivers

Also Published As

Publication number Publication date
GB2203304A (en) 1988-10-12
GB8708232D0 (en) 1987-05-13

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Legal Events

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