SYSTEM AND METHOD FOR DETERMINING WATER BOTTOM SEDIMENT ACOUSTIC PROPERTIES USING A PILE DRIVER ACOUSTIC SOURCE
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United States of America Patent
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Issued Date -
Jul 25, 2024
app pub date -
Jan 20, 2023
filing date -
Jan 20, 2023
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Abstract
A method for mapping acoustic properties of water bottom sediments includes penetrating a piling into the water bottom sediments at a first of a plurality of locations. A first distributed acoustic sensor is inserted adjacent to the first piling. A second piling is driven into sediments at a second location. Acoustic signals are detected at the first acoustic sensor while penetrating the second piling. The detecting is indexed to a depth of the second piling as it is driven. A second acoustic sensor is inserted adjacent to the second piling. Penetrating a piling, detecting acoustic signals at each acoustic sensor and inserting a sensor are repeated until a piling is driven at all the locations. The signals are used to generate a map of properties of the sediments bounded by the plurality of locations. The properties comprise attenuation excluding effects of diffractors in the sediments.
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