FR2280238A1 - Procede et systeme de controle automatique de frequence - Google Patents

Procede et systeme de controle automatique de frequence

Info

Publication number
FR2280238A1
FR2280238A1 FR7137302A FR7137302A FR2280238A1 FR 2280238 A1 FR2280238 A1 FR 2280238A1 FR 7137302 A FR7137302 A FR 7137302A FR 7137302 A FR7137302 A FR 7137302A FR 2280238 A1 FR2280238 A1 FR 2280238A1
Authority
FR
France
Prior art keywords
frequency
enslaving
carrier
memory storing
parameter
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
FR7137302A
Other languages
English (en)
Other versions
FR2280238B1 (fr
Inventor
Francois Oriol
Yves Besson
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.)
Thales SA
Original Assignee
Thomson CSF 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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7137302A priority Critical patent/FR2280238A1/fr
Priority to FR7222786A priority patent/FR2221850A2/fr
Priority to FR7422066A priority patent/FR2276731A2/fr
Publication of FR2280238A1 publication Critical patent/FR2280238A1/fr
Application granted granted Critical
Publication of FR2280238B1 publication Critical patent/FR2280238B1/fr
Granted 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
    • G01S13/24—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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/02—Demodulation using distributed inductance and capacitance, e.g. in feeder lines
    • 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
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
    • 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
    • H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
FR7137302A 1971-10-18 1971-10-18 Procede et systeme de controle automatique de frequence Granted FR2280238A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7137302A FR2280238A1 (fr) 1971-10-18 1971-10-18 Procede et systeme de controle automatique de frequence
FR7222786A FR2221850A2 (en) 1971-10-18 1972-06-23 Oscillator automatic freq. sync. control - has first loop synchronising first osc. with input signal and second loop with second osc.
FR7422066A FR2276731A2 (fr) 1971-10-18 1974-06-25 Procede et systeme de controle automatique de frequence

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7137302A FR2280238A1 (fr) 1971-10-18 1971-10-18 Procede et systeme de controle automatique de frequence

Publications (2)

Publication Number Publication Date
FR2280238A1 true FR2280238A1 (fr) 1976-02-20
FR2280238B1 FR2280238B1 (fr) 1977-10-21

Family

ID=9084502

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7137302A Granted FR2280238A1 (fr) 1971-10-18 1971-10-18 Procede et systeme de controle automatique de frequence

Country Status (1)

Country Link
FR (1) FR2280238A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130711A1 (de) * 1981-08-03 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Phasengeregelter oszillator
EP0180084A2 (fr) * 1984-10-27 1986-05-07 Kabushiki Kaisha Toshiba Oscillateur commandé par tension

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3130711A1 (de) * 1981-08-03 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Phasengeregelter oszillator
EP0180084A2 (fr) * 1984-10-27 1986-05-07 Kabushiki Kaisha Toshiba Oscillateur commandé par tension
EP0180084A3 (en) * 1984-10-27 1988-05-11 Kabushiki Kaisha Toshiba Voltage controlled oscillator

Also Published As

Publication number Publication date
FR2280238B1 (fr) 1977-10-21

Similar Documents

Publication Publication Date Title
ES386520A1 (es) Circuito controlado en fase para estabilizar la frecuencia de un oscilador.
FR2280238A1 (fr) Procede et systeme de controle automatique de frequence
ES397699A1 (es) Perfeccionamientos en circuitos de control automatico de frecuencia.
ES461128A1 (es) Perfeccionamientos en los automatismos para tocadiscos.
GB1477155A (en) System for automatic frequency control
GB1261128A (en) Oscillator frequency-control arrangement
FR2306935A1 (fr) Dispositif electronique pour commander et controler le remplissage d'un reservoir de gaz liquefie a basse temperature
US3075149A (en) Voltage and frequency memory system
FR2270592A1 (en) Signal frequency detector for push button dialing - measures period during clock source controlled periods
FR2375757A1 (fr) Circuit de commande de signaux
ES389551A1 (es) Una disposicion de circuito de comparacion de fase integra-ble monoliticamente.
FR2321219A1 (fr) Discriminateur de signaux vocaux et de signaux numeriques
JPS5232483A (en) Signal receiving device
SU537322A1 (ru) Селектор сигналов точного времени
FR2276731A2 (fr) Procede et systeme de controle automatique de frequence
JPS57178166A (en) Automatic measuring system of noise figure of tuner
DE1933358B2 (de) Einrichtung zur bestimmung einer bewegungsgroesse eines fuer ein uhrwerk vorgesehenen unruh-schwingsystem
IGNATOV et al. The effect of noise on the accuracy of a phase- locked AFC system(Fluctuation noise effects on phase-locked automatic frequency control system obtained using Markov processes, determining phase difference probability density and statistical characteristics)
FR2264291A1 (en) Coherent pulsed doppler radar with clutter echo elimination - has separate threshold control cct. for each distance range selector
GB942767A (en) Automatic gain control means for pulsed signal receivers
FR2334243A1 (fr) Dispositif de mesure des temps d'acces d'un circuit electronique logique
FR2232882A2 (en) Analogue to digital voltage converter
FR2397687A1 (fr) Commande automatique de sirene
JPS5219902A (en) Data terminal device with automatic cut-off signal function
BOYER Digital control of a second-order linear afc system with a large time delay(Construction and nonlinear aspects of phase- locked-loop and automatic frequency control systems- digital controller for second order system with time lag)

Legal Events

Date Code Title Description
CL Concession to grant licenses
ST Notification of lapse