Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems
Reexamination Certificate
2003-11-14
2008-08-26
Pihulic, Dan (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Echo systems
Side scanning or contour mapping sonar systems
Reexamination Certificate
active
07417921
ABSTRACT:
A method for classifying a type of bottom on a bottom under a liquid includes the steps of performing an acoustic reflection measurement, in which a first attribute is determined which represents a strength with which acoustic waves are reflected from a location on the bottom through the liquid in a reflection direction. Further, the method includes the steps of performing an acoustic scattering measurement, in which a second attribute is determined of acoustic waves that are scattered form the location on the bottom; providing a search unit, which contains information with regard to different combinations of the values of the first and second attributes, and associates the combinations with respective bottom classifications; and identifying a bottom classification of the location on the basis of the bottom classification which the search unit associates with a combination of the first and second attributes.
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Pihulic Dan
Young & Thompson
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