FR2535545B1 - Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur - Google Patents

Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur

Info

Publication number
FR2535545B1
FR2535545B1 FR8218243A FR8218243A FR2535545B1 FR 2535545 B1 FR2535545 B1 FR 2535545B1 FR 8218243 A FR8218243 A FR 8218243A FR 8218243 A FR8218243 A FR 8218243A FR 2535545 B1 FR2535545 B1 FR 2535545B1
Authority
FR
France
Prior art keywords
synthesizer
transmission system
acquisition time
radio transmission
frequency hop
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
FR8218243A
Other languages
English (en)
Other versions
FR2535545A1 (fr
Inventor
Jacques Moulin
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 FR8218243A priority Critical patent/FR2535545B1/fr
Publication of FR2535545A1 publication Critical patent/FR2535545A1/fr
Application granted granted Critical
Publication of FR2535545B1 publication Critical patent/FR2535545B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
    • H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
    • 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
    • H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal
    • 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
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/197—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division
    • H03L7/199—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between numbers which are variable in time or the frequency divider dividing by a factor variable in time, e.g. for obtaining fractional frequency division with reset of the frequency divider or the counter, e.g. for assuring initial synchronisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0004—Circuit elements of modulators
    • H03C2200/0029—Memory circuits, e.g. ROMs, RAMs, EPROMs, latches, shift registers
FR8218243A 1982-10-29 1982-10-29 Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur Expired FR2535545B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8218243A FR2535545B1 (fr) 1982-10-29 1982-10-29 Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8218243A FR2535545B1 (fr) 1982-10-29 1982-10-29 Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur

Publications (2)

Publication Number Publication Date
FR2535545A1 FR2535545A1 (fr) 1984-05-04
FR2535545B1 true FR2535545B1 (fr) 1989-08-04

Family

ID=9278773

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8218243A Expired FR2535545B1 (fr) 1982-10-29 1982-10-29 Synthetiseur a temps d'acquisition rapide de frequence et systeme de transmission radioelectrique a saut de frequence comportant un tel synthetiseur

Country Status (1)

Country Link
FR (1) FR2535545B1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526363A1 (de) * 1985-07-19 1987-01-22 Siemens Ag Verfahren zum herstellen eines einstellbaren frequenzgenerators
FR2612028B1 (fr) * 1987-03-05 1991-07-05 Aerospatiale Systeme pour la generation de sauts d'hyperfrequence
FR2624323B1 (fr) * 1987-12-03 1994-03-25 Institut Francais Petrole Dispositif pour asservir un signal, en frequence et en phase, a celle d'un signal impose
DE3920008A1 (de) * 1989-06-20 1991-01-10 Philips Patentverwaltung Phasenregelkreis
JPH0496515A (ja) * 1990-08-13 1992-03-27 Fujitsu Ltd 位相固定ループ回路及び半導体集積回路
JPH0614065A (ja) * 1992-06-26 1994-01-21 Nec Corp 多値ｆｓｋ変調器
EP0688446A1 (fr) * 1993-03-10 1995-12-27 National Semiconductor Corporation Emetteur-recepteur de telecommunication radioelectrique
US5453714A (en) * 1993-03-10 1995-09-26 National Semiconductor Corporation Binary FM demodulator with self-adjusting resonant operating frequency according to demodulated binary output signal duty cycle
GB2295930B (en) * 1994-12-06 1999-11-24 Motorola Ltd Method and apparatus for implementing frequency hopping in a TDMA system
AT513104B1 (de) * 2012-07-10 2015-11-15 Felix Dipl Ing Dr Himmelstoss Vorrichtung zur Konstanthaltung der Frequenz eines spannungsgesteuerten Oszillators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885238A (en) * 1969-11-24 1975-05-20 Itt Phase locked loop receiving system with improved signal acquisition
IT986172B (it) * 1973-06-18 1975-01-20 Fatme Spa Dispositivo di sincronizzazione automatica per un oscillatore in particolare per impianti di tele comunicazione
US3927384A (en) * 1974-08-20 1975-12-16 Itt Frequency synthesizer
DE2914143C2 (de) * 1979-04-07 1981-10-01 Rohde & Schwarz GmbH & Co KG, 8000 München Gerät zum Untersuchen eines nach der Frequenz ausgewählten einzelnen Hochfrequenzsignales eines breiten Frequenzbandes
US4272729A (en) * 1979-05-10 1981-06-09 Harris Corporation Automatic pretuning of a voltage controlled oscillator in a frequency synthesizer using successive approximation
US4521918A (en) * 1980-11-10 1985-06-04 General Electric Company Battery saving frequency synthesizer arrangement

Also Published As

Publication number Publication date
FR2535545A1 (fr) 1984-05-04

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Legal Events

Date Code Title Description
ST Notification of lapse