Sonar
Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used in air for robot navigation, and SODAR (an upward looking in-air sonar) is used for atmospheric investigations. The term sonar is also
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Barnegat-class seaplane tender
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Sonar
Sonar (originally an acronym for SOund Navigation And Ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, communicate with or detect objects on or under the surface of the water, such as other vessels. Two types of technology share the name "sonar": passive sonar is essentially listening for the sound made by vessels; active sonar is emitting pulses of sounds and listening for echoes. Sonar may be used as a means of acoustic location and of measurement of the echo characteristics of "targets" in the water. Acoustic location in air was used before the introduction of radar. Sonar may also be used in air for robot navigation, and SODAR (an upward looking in-air sonar) is used for atmospheric investigations. The term sonar is also
has abstract
25بك المحتوى هنا ينقصه الاستشه ...... في كومنز صور وملفات عن: سونار
@ar
El sonar (del inglés SONAR, ac ...... rmino ASDIC en favor de SONAR.
@es
Il sonar, termine che nasce co ...... tica subacquea o idroacustica.
@it
Sonar (do inglês Sound Navigat ...... uns poucos metros sob a água).
@pt
Sonar (originally an acronym f ...... r acoustics or hydroacoustics.
@en
Sonar (sound navigation and ra ...... sen actieve en passieve sonar.
@nl
Sonar ist ein „Verfahren zur O ...... Literatur oft nicht eindeutig.
@de
Sonar – urządzenie używające d ...... odgłosów z odległych statków.
@pl
Un sonar (acronyme de sound na ...... ne particulière : la prestine.
@fr
Гидролока́тор, или сона́р (анг ...... tion Investigation Committee).
@ru
sound recording
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25بك المحتوى هنا ينقصه الاستشه ...... في كومنز صور وملفات عن: سونار
@ar
El sonar (del inglés SONAR, ac ...... jeto, pero pierden en alcance.
@es
Il sonar, termine che nasce co ...... zo di localizzazione acustica.
@it
Sonar (do inglês Sound Navigat ...... ca Submarina ou Hidroacústica.
@pt
Sonar (originally an acronym f ...... tions. The term sonar is also
@en
Sonar (sound navigation and ra ...... sen actieve en passieve sonar.
@nl
Sonar ist ein „Verfahren zur O ...... die selbst Schall emittieren.
@de
Sonar – urządzenie używające d ...... cyjne mogą używać bardzo szero
@pl
Un sonar (acronyme de sound na ...... u passifs (écoute des bruits).
@fr
Гидролока́тор, или сона́р (анг ...... tion Investigation Committee).
@ru
label
Sonar
@de
Sonar
@en
Sonar
@es
Sonar
@fr
Sonar
@it
Sonar
@nl
Sonar
@pl
Sonar
@pt
Гидролокатор
@ru
سونار
@ar