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Seabed surveying apparatus for superimposed mapping of topographic and contour-line data
Seabed surveying apparatus for superimposed mapping of topographic and contour-line data
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机译:用于叠加地形图和轮廓线数据的海底测量设备
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摘要
Disclosed is a seabed surveying apparatus wherein a first acoustic fan beam is transmitted to seabed to provide a two-dimensional topographic representation of echoes from successively greater ranges. A second acoustic fan beam is transmitted to seabed to provide a two- dimensional bathymetric representation of echoes returning from equal profiles of the varying topography. The topographic and bathymetric representations are superimposed on a common X-Y coordinate display field.
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