FR2466142A1 - Procede de controle automatique de modulation et systeme de modulation par impulsions radiofrequence preformees l'utilisant - Google Patents

Procede de controle automatique de modulation et systeme de modulation par impulsions radiofrequence preformees l'utilisant Download PDF

Info

Publication number
FR2466142A1
FR2466142A1 FR8019620A FR8019620A FR2466142A1 FR 2466142 A1 FR2466142 A1 FR 2466142A1 FR 8019620 A FR8019620 A FR 8019620A FR 8019620 A FR8019620 A FR 8019620A FR 2466142 A1 FR2466142 A1 FR 2466142A1
Authority
FR
France
Prior art keywords
pulses
pulse
preformed
modulation
durations
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.)
Withdrawn
Application number
FR8019620A
Other languages
English (en)
French (fr)
Inventor
Danio Graziani
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of FR2466142A1 publication Critical patent/FR2466142A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/02—Details
    • H03C1/06—Modifications of modulator to reduce distortion, e.g. by feedback, and clearly applicable to more than one type of modulator
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/785—Distance Measuring Equipment [DME] systems
    • G01S13/788—Coders or decoders therefor; Special detection circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
FR8019620A 1979-09-21 1980-09-11 Procede de controle automatique de modulation et systeme de modulation par impulsions radiofrequence preformees l'utilisant Withdrawn FR2466142A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT25913/79A IT1218031B (it) 1979-09-21 1979-09-21 Modulazione ad impulsi preformati di stadi a radiofrequenza con controllo automatico di modulazione

Publications (1)

Publication Number Publication Date
FR2466142A1 true FR2466142A1 (fr) 1981-03-27

Family

ID=11218125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8019620A Withdrawn FR2466142A1 (fr) 1979-09-21 1980-09-11 Procede de controle automatique de modulation et systeme de modulation par impulsions radiofrequence preformees l'utilisant

Country Status (7)

Country Link
US (1) US4409594A (enExample)
JP (1) JPS56100554A (enExample)
DE (1) DE3034950A1 (enExample)
FR (1) FR2466142A1 (enExample)
GB (1) GB2061065B (enExample)
IL (1) IL61096A (enExample)
IT (1) IT1218031B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1141947B (it) * 1980-04-29 1986-10-08 Face Standard Ind Dispositivo per controllo automatico di modulazione ad impulsi
JPS61146022A (ja) * 1984-12-20 1986-07-03 Nec Corp トランスバ−サル等化器の自動調整方式
US4847517A (en) * 1988-02-16 1989-07-11 Ltv Aerospace & Defense Co. Microwave tube modulator
DE4329898A1 (de) * 1993-09-04 1995-04-06 Marcus Dr Besson Kabelloses medizinisches Diagnose- und Überwachungsgerät
JP4015363B2 (ja) * 1998-01-21 2007-11-28 ノキア コーポレイション 構成部品による歪を補償するためのパルス成形方法
FR2890262B1 (fr) * 2005-08-30 2007-10-12 Thales Sa Procede et dispositif de controle de puissance crete et de largeur d'impulsion d'un emetteur de forte puissance rf impulsionnel gaussien large bande

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502987A (en) * 1967-06-06 1970-03-24 Us Army Analog feedback implementation of gaussian modulated signals
BE784675A (fr) * 1972-06-09 1972-10-02 Acrodyne Ind Inc Emetteur d'impulsions a haute frequence.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3662290A (en) * 1970-08-05 1972-05-09 Collins Radio Co Automatic control for amplitude-modulated signal source
US3889263A (en) * 1973-11-15 1975-06-10 Megapulse Inc Radio-frequency pulse generation system and method
US4199723A (en) * 1978-02-24 1980-04-22 Rockwell International Corporation Automatic modulation control apparatus
DE2835751C2 (de) * 1978-08-16 1980-07-03 Standard Elektrik Lorenz Ag, 7000 Stuttgart HF-Leistungsverstärker mit einer Modulationseinrichtung
US4237555A (en) * 1979-09-14 1980-12-02 International Telephone And Telegraph Corporation Automatic modulation system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3502987A (en) * 1967-06-06 1970-03-24 Us Army Analog feedback implementation of gaussian modulated signals
BE784675A (fr) * 1972-06-09 1972-10-02 Acrodyne Ind Inc Emetteur d'impulsions a haute frequence.

Also Published As

Publication number Publication date
DE3034950A1 (de) 1981-04-09
GB2061065B (en) 1983-10-19
US4409594A (en) 1983-10-11
IT1218031B (it) 1990-03-30
JPS56100554A (en) 1981-08-12
IL61096A (en) 1983-06-15
IT7925913A0 (it) 1979-09-21
GB2061065A (en) 1981-05-07
IL61096A0 (en) 1980-11-30
JPS634157B2 (enExample) 1988-01-27

Similar Documents

Publication Publication Date Title
CA1263154A (fr) Amplificateur en classe ab et son correcteur de distorsion
FR3010239A1 (fr) Appareil de communication de vehicule
EP0929148A1 (fr) Procédé et système de linéarisation numérique d'un amplificateur
EP3234638B1 (fr) Procédé de détermination de paramètres d'un filtre de compression et radar multivoies associé
FR2797361A1 (fr) Circuit d'amplification de puissance avec ajustement d'alimentation pour controler la puissance de la voie alternee et adjacente
EP2721734B1 (fr) Procédé de normalisation de la puissance d'un signal sonore et dispositif de traitement associé
FR2466142A1 (fr) Procede de controle automatique de modulation et systeme de modulation par impulsions radiofrequence preformees l'utilisant
EP2706676B1 (fr) Méthode de caractérisation d'une antenne de transmission d'un satellite en orbite et système associé.
FR2767429A1 (fr) Dispositif permettant d'apparier des retards dans un amplificateur de puissance
CA2330346A1 (fr) Methode d'etalonnage d'un radioaltimetre de type fm/cw et radioaltimetre concu pour la mise en oeuvre de cette methode
JP2010226329A (ja) 携帯端末装置
US6671045B1 (en) Apparatus and method for measuring optical signal-to-noise ratio
FR2465368A1 (fr) Systeme de modulation automatique controle par reaction
EP1030183A1 (fr) Capteur de courant
US20040080753A1 (en) Heterodyne based optical spectrum analysis with controlled optical attenuation
JPH04249931A (ja) 隣接チャネルの選択度測定方法及び装置
FR2857101A1 (fr) Procede de rejection d'interferences perturbant la reception d'un signal de transmission et dispositif
US20050008249A1 (en) Method for image processing by unsharp masking
EP3514896A1 (fr) Procédé et système d'ajustement de profil d'un front d'onde laser
EP1540987B1 (fr) Procédé de réglage d'un système de sonorisation.
EP3675363B1 (fr) Procede de calibration en phase d'un circuit electronique realisant la sommation coherente de deux boucles a verrouillage de phase
EP0159257A1 (fr) Circuit électronique pour la mesure des signaux très faibles à potentiel élevé
BE441000A (enExample)
FR3055173B1 (fr) Dispositif d'amplification comprenant un circuit de compensation
FR2517496A1 (fr) Perfectionnements a des montages permettant de modifier une gamme dynamique

Legal Events

Date Code Title Description
ST Notification of lapse