Abstract

This paper describes a system designed and built at the Marine Physical Laboratory of the Scripps Institution of Oceanography to produce acoustic images of the seafloor on-line with a Sea Beammultibeam echo-sounder. This system uses a stand alone interface between the Sea Beam system and a grey-scale line-scan recorder. The interface is built around a Motorola 68000 microprocessor and has digitizing capabilities. It digitizes the detected echo signals from each of the 16 preformed beams inside the Sea Beam echo processor as well as the roll information given by the ship's vertical reference. Theacoustic data are then roll compensated and combined into a port and a starboard time series. These time series are eventually output in digital format to a line-scan recorder which produces the grey scaleacoustic image. Results are discussed for Sea Beam acoustic images of the seafloor and of the Deep Scattering layers.

Department

Center for Coastal and Ocean Mapping

Publication Date

10-1987

Journal Title

IEEE Oceans

Pages

1197-1201

Conference Date

Oct 1 - Oct 5, 1987

Publisher Place

Halifax, Nova Scotia, Canada

Publisher

IEEE

Digital Object Identifier (DOI)

10.1109/OCEANS.1987.1160729

Document Type

Conference Proceeding

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