GB1357618A - Frequency control circuits - Google Patents

Frequency control circuits

Info

Publication number
GB1357618A
GB1357618A GB2891571A GB2891571A GB1357618A GB 1357618 A GB1357618 A GB 1357618A GB 2891571 A GB2891571 A GB 2891571A GB 2891571 A GB2891571 A GB 2891571A GB 1357618 A GB1357618 A GB 1357618A
Authority
GB
United Kingdom
Prior art keywords
oscillator
capacitor
frequency
transceiver
filter
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
GB2891571A
Other languages
English (en)
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.)
Siemens Schweiz AG
Original Assignee
Siemens Albis AG
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 Siemens Albis AG filed Critical Siemens Albis AG
Publication of GB1357618A publication Critical patent/GB1357618A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/84—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted for distance determination by phase measurement

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)
  • Optical Radar Systems And Details Thereof (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB2891571A 1970-07-10 1971-06-21 Frequency control circuits Expired GB1357618A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1047470A CH511442A (de) 1970-07-10 1970-07-10 Schaltungsanordnung in einem elektrischen Distanzmessgerät zum Ziehen der Frequenz des Messoszillators auf eine um einen bestimmten vorgegebenen Betrag höhere bzw. tiefere Frequenz

Publications (1)

Publication Number Publication Date
GB1357618A true GB1357618A (en) 1974-06-26

Family

ID=4363615

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2891571A Expired GB1357618A (en) 1970-07-10 1971-06-21 Frequency control circuits

Country Status (10)

Country Link
US (1) US3698013A (enExample)
AT (1) AT309537B (enExample)
CA (1) CA939792A (enExample)
CH (1) CH511442A (enExample)
ES (1) ES393027A1 (enExample)
FR (1) FR2098299B1 (enExample)
GB (1) GB1357618A (enExample)
NL (1) NL7109535A (enExample)
SE (1) SE361947B (enExample)
ZA (1) ZA714216B (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599618A (en) * 1982-07-26 1986-07-08 Rockwell International Corporation Nearest return tracking in an FMCW system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2892945A (en) * 1957-09-09 1959-06-30 Gilfillan Bros Inc Follow-up system
NL295277A (enExample) * 1962-08-15
US3213449A (en) * 1962-12-15 1965-10-19 Anritsu Electronic Works Ltd Distance measuring system
FR1379675A (fr) * 1963-08-08 1964-11-27 Labo Cent Telecommunicat Perfectionnements aux oscillateurs verrouillés en phase
US3430237A (en) * 1967-11-24 1969-02-25 Nasa Time division multiplex system
DE1766323A1 (de) * 1968-05-04 1971-08-19 Standard Elek K Lorenz Ag Schaltungsanordnung zur Phasenregelung eines Oszillators
US3611175A (en) * 1970-03-26 1971-10-05 Sylvania Electric Prod Search circuit for frequency synthesizer

Also Published As

Publication number Publication date
FR2098299A1 (enExample) 1972-03-10
NL7109535A (enExample) 1972-01-12
SE361947B (enExample) 1973-11-19
DE2043772A1 (enExample) 1971-09-30
ES393027A1 (es) 1973-08-01
ZA714216B (en) 1972-03-29
CA939792A (en) 1974-01-08
FR2098299B1 (enExample) 1974-05-31
CH511442A (de) 1971-08-15
AT309537B (de) 1973-08-27
DE2043772B2 (de) 1971-09-30
US3698013A (en) 1972-10-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees