FR2425764A1 - Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif - Google Patents

Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif

Info

Publication number
FR2425764A1
FR2425764A1 FR7814003A FR7814003A FR2425764A1 FR 2425764 A1 FR2425764 A1 FR 2425764A1 FR 7814003 A FR7814003 A FR 7814003A FR 7814003 A FR7814003 A FR 7814003A FR 2425764 A1 FR2425764 A1 FR 2425764A1
Authority
FR
France
Prior art keywords
generator
comparator
signal generator
oscillator
driven
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
FR7814003A
Other languages
English (en)
Other versions
FR2425764B1 (fr
Inventor
Raymond Strauch
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.)
Telecommunications Radioelectriques et Telephoniques SA TRT
Original Assignee
Telecommunications Radioelectriques et Telephoniques SA TRT
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 Telecommunications Radioelectriques et Telephoniques SA TRT filed Critical Telecommunications Radioelectriques et Telephoniques SA TRT
Priority to FR7814003A priority Critical patent/FR2425764A1/fr
Publication of FR2425764A1 publication Critical patent/FR2425764A1/fr
Application granted granted Critical
Publication of FR2425764B1 publication Critical patent/FR2425764B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B23/00—Generation of oscillations periodically swept over a predetermined frequency 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
    • G01S13/02—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
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G01S13/341—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal wherein the rate of change of the transmitted frequency is adjusted to give a beat of predetermined constant frequency, e.g. by adjusting the amplitude or frequency of the frequency-modulating signal

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)

Abstract

L'INVENTION CONCERNE UN DISPOSITIF POUR ENGENDRER UN SIGNAL MODULE EN FREQUENCE VARIANT D'UN ECART DE FREQUENCE D F A PARTIR D'UNE FREQUENCE F. CE DISPOSITIF COMPORTE DEUX BOUCLES D'ASSERVISSEMENT COMMANDEES PAR UN MEME DISCRIMINATEUR; UNE DES BOUCLES STABILISE LE PARAMETRE F, L'AUTRE LE PARAMETRE DF. L'INVENTION CONCERNE AUSSI UN RADIOALTIMETRE COMPORTANT UN TEL DISPOSITIF. APPLICATION: RADIO-NAVIGATION.
FR7814003A 1978-05-11 1978-05-11 Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif Granted FR2425764A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7814003A FR2425764A1 (fr) 1978-05-11 1978-05-11 Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7814003A FR2425764A1 (fr) 1978-05-11 1978-05-11 Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2425764A1 true FR2425764A1 (fr) 1979-12-07
FR2425764B1 FR2425764B1 (fr) 1981-08-07

Family

ID=9208140

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7814003A Granted FR2425764A1 (fr) 1978-05-11 1978-05-11 Dispositif pour engendrer un signal module en frequence et appareil radioaltimetrique comportant un tel dispositif

Country Status (1)

Country Link
FR (1) FR2425764A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496275A1 (fr) * 1980-12-12 1982-06-18 Trt Telecom Radio Electr Dispositif pour engendrer un signal radio module en frequence variant d'un ecart de frequence constant et appareil de mesure de distance comportant un tel dispositif
FR2496274A1 (fr) * 1980-12-12 1982-06-18 Trt Telecom Radio Electr Procede de mesure de distance par radar a onde entretenue modulee en frequence, appareil pour la mise en oeuvre du procede et application a la determination precise du niveau de liquide dans un reservoir

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576498A (en) * 1969-10-15 1971-04-27 Singer Co Sweep frequency oscillator drift correction systems
FR2080524A7 (fr) * 1970-02-16 1971-11-19 Siemens Ag
DE2538925B1 (de) * 1975-09-02 1977-03-03 Wandel & Goltermann Breitband-Wobbelsender
US4048580A (en) * 1976-10-18 1977-09-13 The United States Of America As Represented By The Secretary Of The Army Apparatus for detecting a stable microwave discrete frequency
FR2344031A1 (fr) * 1976-03-12 1977-10-07 Trt Telecom Radio Electr Appareil a modulation de frequence destine a des mesures de distance de haute precision

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576498A (en) * 1969-10-15 1971-04-27 Singer Co Sweep frequency oscillator drift correction systems
FR2080524A7 (fr) * 1970-02-16 1971-11-19 Siemens Ag
DE2538925B1 (de) * 1975-09-02 1977-03-03 Wandel & Goltermann Breitband-Wobbelsender
FR2344031A1 (fr) * 1976-03-12 1977-10-07 Trt Telecom Radio Electr Appareil a modulation de frequence destine a des mesures de distance de haute precision
US4048580A (en) * 1976-10-18 1977-09-13 The United States Of America As Represented By The Secretary Of The Army Apparatus for detecting a stable microwave discrete frequency

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496275A1 (fr) * 1980-12-12 1982-06-18 Trt Telecom Radio Electr Dispositif pour engendrer un signal radio module en frequence variant d'un ecart de frequence constant et appareil de mesure de distance comportant un tel dispositif
FR2496274A1 (fr) * 1980-12-12 1982-06-18 Trt Telecom Radio Electr Procede de mesure de distance par radar a onde entretenue modulee en frequence, appareil pour la mise en oeuvre du procede et application a la determination precise du niveau de liquide dans un reservoir
EP0054335A1 (fr) * 1980-12-12 1982-06-23 Telecommunications Radioelectriques Et Telephoniques T.R.T. Procédé de mesure de distance par radar à onde entretenue modulée en fréquence, appareil pour la mise en oeuvre du procédé et application à la détermination précise du niveau de liquide dans un réservoir

Also Published As

Publication number Publication date
FR2425764B1 (fr) 1981-08-07

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Legal Events

Date Code Title Description
ST Notification of lapse