AKUSTISK UNDERVANNSANTENNE MED SYNTETISK AAPNING

A synthetic aperture acoustic underwater antenna comprises an assembly (10) of electro-acoustic transducers which is supported on the sea bed and rotates at constant angular velocity in a fixed circular path. The assembly is connected by a cable (23) to an above-water signal processing unit (22). In...

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Bibliographische Detailangaben
Hauptverfasser:	GUEDESEN, KARL-ALWIN, URBAN, HEINZ
Format:	Patent
Sprache:	nor
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES TESTING
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Beschreibung
Zusammenfassung:	A synthetic aperture acoustic underwater antenna comprises an assembly (10) of electro-acoustic transducers which is supported on the sea bed and rotates at constant angular velocity in a fixed circular path. The assembly is connected by a cable (23) to an above-water signal processing unit (22). In a further embodiment rotation is achieved by selective switching of a circular array of transducers. The device may be used in offshore technology e.g. drilling site supervision and sea-bed prospecting. It may also be used for harbour and sea-lane traffic control.