FR2402879A1 - Circuit de verrouillage d'un oscillateur d'un radar sur la bande voulue de frequences - Google Patents

Circuit de verrouillage d'un oscillateur d'un radar sur la bande voulue de frequences

Info

Publication number
FR2402879A1
FR2402879A1 FR7825740A FR7825740A FR2402879A1 FR 2402879 A1 FR2402879 A1 FR 2402879A1 FR 7825740 A FR7825740 A FR 7825740A FR 7825740 A FR7825740 A FR 7825740A FR 2402879 A1 FR2402879 A1 FR 2402879A1
Authority
FR
France
Prior art keywords
frequency band
desired frequency
locking circuit
oscillator
radar 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.)
Granted
Application number
FR7825740A
Other languages
English (en)
Other versions
FR2402879B1 (fr
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of FR2402879A1 publication Critical patent/FR2402879A1/fr
Application granted granted Critical
Publication of FR2402879B1 publication Critical patent/FR2402879B1/fr
Granted 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
    • H03L7/12—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range using a scanning signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

L'invention concerne les circuits de verrouillage d'un oscillateur local. Elle se rapporte à un circuit de verrouillage dans lequel un premier circuit sélectif à filtre passe-bas et un second circuit sélectif à filtre passe-bande transmettent des signaux de sortie à des détecteurs correspondants qui, lorsqu'ils transmettent tous deux des signaux, provoquent l'arrêt d'un générateur de balayage et le verrouillage de la fréquence d'un oscillateur local sur la valeur obtenue lors de l'excitation des détecteurs. Application au verrouillage de la phase de l'oscillateur d'un radar.
FR7825740A 1977-09-13 1978-09-07 Circuit de verrouillage d'un oscillateur d'un radar sur la bande voulue de frequences Granted FR2402879A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7710219A SE410660B (sv) 1977-09-13 1977-09-13 Anordning i ett radarsystem for lasning av en styrbar lokaloscillator till avsett frekvensband

Publications (2)

Publication Number Publication Date
FR2402879A1 true FR2402879A1 (fr) 1979-04-06
FR2402879B1 FR2402879B1 (fr) 1983-10-28

Family

ID=20332241

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7825740A Granted FR2402879A1 (fr) 1977-09-13 1978-09-07 Circuit de verrouillage d'un oscillateur d'un radar sur la bande voulue de frequences

Country Status (7)

Country Link
CH (1) CH632849A5 (fr)
DE (1) DE2838254A1 (fr)
FR (1) FR2402879A1 (fr)
GB (1) GB2004427B (fr)
IT (1) IT1098640B (fr)
NL (1) NL189434C (fr)
SE (1) SE410660B (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1288134A (fr) * 1961-02-01 1962-03-24 Cie Ind Des Telephones Synthétiseur de fréquence à commande électronique d'exploration de fréquence
GB973800A (en) * 1955-10-21 1964-10-28 Sperry Rand Corp Automatic frequency control systems
FR1494257A (fr) * 1966-07-26 1967-09-08 Cit Alcatel Synthétiseur de fréquences préréglées
FR90604E (fr) * 1965-12-08 1968-01-19 Cit Alcatel Synthétiseur de fréquence universel
FR2004510A1 (fr) * 1968-03-22 1969-11-28 Siemens Ag Albis
FR2007962A1 (fr) * 1968-05-07 1970-01-16 Siemens Ag Albis

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142022A (en) * 1961-06-07 1964-07-21 Gen Precision Inc Automatic frequency control and sweep circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB973800A (en) * 1955-10-21 1964-10-28 Sperry Rand Corp Automatic frequency control systems
FR1288134A (fr) * 1961-02-01 1962-03-24 Cie Ind Des Telephones Synthétiseur de fréquence à commande électronique d'exploration de fréquence
FR90604E (fr) * 1965-12-08 1968-01-19 Cit Alcatel Synthétiseur de fréquence universel
FR1494257A (fr) * 1966-07-26 1967-09-08 Cit Alcatel Synthétiseur de fréquences préréglées
FR2004510A1 (fr) * 1968-03-22 1969-11-28 Siemens Ag Albis
FR2007962A1 (fr) * 1968-05-07 1970-01-16 Siemens Ag Albis

Also Published As

Publication number Publication date
DE2838254A1 (de) 1979-04-12
NL189434B (nl) 1992-11-02
GB2004427B (en) 1982-01-13
DE2838254C2 (fr) 1988-11-24
FR2402879B1 (fr) 1983-10-28
IT7827615A0 (it) 1978-09-13
GB2004427A (en) 1979-03-28
IT1098640B (it) 1985-09-07
SE410660B (sv) 1979-10-22
SE7710219L (sv) 1979-03-14
CH632849A5 (de) 1982-10-29
NL7808929A (nl) 1979-03-15
NL189434C (nl) 1993-04-01

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