FR2414723A1 - Appareil pour l'evaluation de la correlation de signaux acoustiques - Google Patents

Appareil pour l'evaluation de la correlation de signaux acoustiques

Info

Publication number
FR2414723A1
FR2414723A1 FR7800798A FR7800798A FR2414723A1 FR 2414723 A1 FR2414723 A1 FR 2414723A1 FR 7800798 A FR7800798 A FR 7800798A FR 7800798 A FR7800798 A FR 7800798A FR 2414723 A1 FR2414723 A1 FR 2414723A1
Authority
FR
France
Prior art keywords
channel
noise measurements
acoustic signals
input
involves use
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
FR7800798A
Other languages
English (en)
Other versions
FR2414723B1 (fr
Inventor
Michel Bodiansky
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.)
Office National dEtudes et de Recherches Aerospatiales ONERA
Original Assignee
Office National dEtudes et de Recherches Aerospatiales ONERA
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 Office National dEtudes et de Recherches Aerospatiales ONERA filed Critical Office National dEtudes et de Recherches Aerospatiales ONERA
Priority to FR7800798A priority Critical patent/FR2414723A1/fr
Publication of FR2414723A1 publication Critical patent/FR2414723A1/fr
Application granted granted Critical
Publication of FR2414723B1 publication Critical patent/FR2414723B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/19—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions
    • G06G7/1928—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming correlation integrals; for forming convolution integrals
    • G06G7/1935—Arrangements for performing computing operations, e.g. operational amplifiers for forming integrals of products, e.g. Fourier integrals, Laplace integrals, correlation integrals; for analysis or synthesis of functions using orthogonal functions for forming correlation integrals; for forming convolution integrals by converting at least one the input signals into a two level signal, e.g. polarity correlators

Landscapes

  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

a. Appareil pour évaluer l'intercorrélation de signaux analogiques délivrés par une première et une deuxième voies microphoniques. b. Ledit appareil comprend un quantificateur à trois niveaux inséré dans la première voie et des moyens d'élaborer un signal d'intercorrélation du signal quantifié de la première voie et du signal non quantifié de la deuxième voie c. Mesures acoustiques en atelier et sur chantier.
FR7800798A 1978-01-12 1978-01-12 Appareil pour l'evaluation de la correlation de signaux acoustiques Granted FR2414723A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7800798A FR2414723A1 (fr) 1978-01-12 1978-01-12 Appareil pour l'evaluation de la correlation de signaux acoustiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800798A FR2414723A1 (fr) 1978-01-12 1978-01-12 Appareil pour l'evaluation de la correlation de signaux acoustiques

Publications (2)

Publication Number Publication Date
FR2414723A1 true FR2414723A1 (fr) 1979-08-10
FR2414723B1 FR2414723B1 (fr) 1981-06-19

Family

ID=9203371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800798A Granted FR2414723A1 (fr) 1978-01-12 1978-01-12 Appareil pour l'evaluation de la correlation de signaux acoustiques

Country Status (1)

Country Link
FR (1) FR2414723A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2516396C2 (ru) * 2012-09-06 2014-05-20 Федеральное государственное унитарное предприятие "Крыловский государственный научный центр" Способ выявления источников комбинационных спектральных составляющих общего акустического поля

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012434A (en) * 1959-04-28 1961-12-12 Singer Mfg Co System for examining and locating noise in cyclically operating machines
US3326036A (en) * 1964-05-25 1967-06-20 Dana Corp Apparatus for noise evaluation
FR1493450A (fr) * 1966-04-25 1967-09-01 Commissariat Energie Atomique Perfectionnements aux corrélateurs
US3618098A (en) * 1963-12-24 1971-11-02 Hilary H Nall Wide band delay line

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3012434A (en) * 1959-04-28 1961-12-12 Singer Mfg Co System for examining and locating noise in cyclically operating machines
US3618098A (en) * 1963-12-24 1971-11-02 Hilary H Nall Wide band delay line
US3326036A (en) * 1964-05-25 1967-06-20 Dana Corp Apparatus for noise evaluation
FR1493450A (fr) * 1966-04-25 1967-09-01 Commissariat Energie Atomique Perfectionnements aux corrélateurs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV8030/76 *

Also Published As

Publication number Publication date
FR2414723B1 (fr) 1981-06-19

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Legal Events

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