FR2433756A1 - DIGITAL FREQUENCY DISCRIMINATOR - Google Patents

DIGITAL FREQUENCY DISCRIMINATOR

Info

Publication number
FR2433756A1
FR2433756A1 FR7919450A FR7919450A FR2433756A1 FR 2433756 A1 FR2433756 A1 FR 2433756A1 FR 7919450 A FR7919450 A FR 7919450A FR 7919450 A FR7919450 A FR 7919450A FR 2433756 A1 FR2433756 A1 FR 2433756A1
Authority
FR
France
Prior art keywords
frequency discriminator
digital frequency
digital
frequency
sign
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
FR7919450A
Other languages
French (fr)
Other versions
FR2433756B1 (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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2433756A1 publication Critical patent/FR2433756A1/en
Application granted granted Critical
Publication of FR2433756B1 publication Critical patent/FR2433756B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

Discriminateur de fréquence numérique. Dans l'hypothèse où la composante en quadrature y(t) d'un signal temporel x(t) est disponible en meme temps que ce dernier, la fréquence de deux valeurs instantanées successives de la phase, échantillonnées à une fréquence f s . Le discriminateur de fréquence numérique délivre un mot-phase numérique par de simples opérations logiques sur les lignes SIGN X et SIGN Y et les valeurs absolues |x| et |y| des signaux x(t) et y(t).Digital frequency discriminator. On the assumption that the quadrature component y (t) of a time signal x (t) is available at the same time as the latter, the frequency of two successive instantaneous values of the phase, sampled at a frequency f s. The digital frequency discriminator delivers a digital phase word by simple logic operations on the SIGN X and SIGN Y lines and the absolute values | x | and | y | signals x (t) and y (t).

FR7919450A 1978-07-29 1979-07-27 DIGITAL FREQUENCY DISCRIMINATOR Granted FR2433756A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782833335 DE2833335A1 (en) 1978-07-29 1978-07-29 DIGITAL FREQUENCY DISCRIMINATOR

Publications (2)

Publication Number Publication Date
FR2433756A1 true FR2433756A1 (en) 1980-03-14
FR2433756B1 FR2433756B1 (en) 1984-03-02

Family

ID=6045703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7919450A Granted FR2433756A1 (en) 1978-07-29 1979-07-27 DIGITAL FREQUENCY DISCRIMINATOR

Country Status (3)

Country Link
DE (1) DE2833335A1 (en)
FR (1) FR2433756A1 (en)
GB (1) GB2027297B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029376A2 (en) * 1979-11-14 1981-05-27 Thomson-Csf Frequency modulated signal demodulation process and demodulator putting this process into operation
EP0046103A1 (en) * 1980-08-13 1982-02-17 Thomson-Csf Frequency-modulated signal-demodulation method, and demodulator putting this method into operation
FR2502423A1 (en) * 1981-03-17 1982-09-24 Thomson Brandt DIGITAL DEMODULATOR OF SIGNALS AND TELEVISION SYSTEM COMPRISING SUCH A DEMODULATOR

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3030853A1 (en) * 1980-08-14 1982-03-11 Siemens AG, 1000 Berlin und 8000 München METHOD AND CIRCUIT ARRANGEMENT FOR DEMODULATING TIME-DISCRETE FREQUENCY-MODULATED SIGNALS
DE3212054A1 (en) * 1982-04-01 1983-10-06 Blaupunkt Werke Gmbh DIGITAL DEMODULATOR
EP0161325A1 (en) * 1984-05-15 1985-11-21 Deutsche ITT Industries GmbH Digital frequency discriminator demodulating a digital signal
CH676068A5 (en) * 1987-10-16 1990-11-30 Bbc Brown Boveri & Cie
DE3736124A1 (en) * 1987-10-26 1989-05-03 Licentia Gmbh METHOD AND ARRANGEMENT FOR DETERMINING THE TORQUE FREQUENCY OF A SIGNAL
GB8828912D0 (en) * 1988-12-10 1989-01-18 Emi Plc Thorn Frequency measurement
US6067363A (en) * 1996-06-03 2000-05-23 Ericsson Inc. Audio A/D convertor using frequency modulation
EP3025160B1 (en) * 2013-09-11 2019-08-21 Siemens Aktiengesellschaft Frequency measurement in energy supply network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800221A (en) * 1972-05-26 1974-03-26 Anaren Microwave Inc Digital frequency meter
FR2378285A1 (en) * 1977-01-22 1978-08-18 Tekade Felten & Guilleaume Digital frequency converter for AC signals - has two binary phase-shifted trains at input frequency

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH530643A (en) * 1971-04-22 1972-11-15 Hasler Ag Method and device for recognizing a predetermined frequency in a frequency mixture
CA984068A (en) * 1972-08-10 1976-02-17 Alexander D. Proudfoot Method and apparatus for detecting the presence of signal components of predetermined frequency in a multi-frequency signal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800221A (en) * 1972-05-26 1974-03-26 Anaren Microwave Inc Digital frequency meter
FR2378285A1 (en) * 1977-01-22 1978-08-18 Tekade Felten & Guilleaume Digital frequency converter for AC signals - has two binary phase-shifted trains at input frequency

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029376A2 (en) * 1979-11-14 1981-05-27 Thomson-Csf Frequency modulated signal demodulation process and demodulator putting this process into operation
EP0029376A3 (en) * 1979-11-14 1981-06-10 Thomson-Csf Frequency modulated signal demodulation process and demodulator putting this process into operation
EP0046103A1 (en) * 1980-08-13 1982-02-17 Thomson-Csf Frequency-modulated signal-demodulation method, and demodulator putting this method into operation
FR2488755A2 (en) * 1980-08-13 1982-02-19 Thomson Csf METHOD FOR DEMODULATING A FREQUENCY MODULATED SIGNAL AND DEMODULATORS USING THE SAME
FR2502423A1 (en) * 1981-03-17 1982-09-24 Thomson Brandt DIGITAL DEMODULATOR OF SIGNALS AND TELEVISION SYSTEM COMPRISING SUCH A DEMODULATOR
EP0061377A1 (en) * 1981-03-17 1982-09-29 Societe Electronique De La Region Pays De Loire Digital signal demodulator and a colour television receiver or system comprising such a demodulator

Also Published As

Publication number Publication date
DE2833335C2 (en) 1990-06-21
GB2027297B (en) 1982-08-25
FR2433756B1 (en) 1984-03-02
GB2027297A (en) 1980-02-13
DE2833335A1 (en) 1980-03-06

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