Communications – electrical: acoustic wave systems and devices – Echo systems – Side scanning or contour mapping sonar systems
Patent
1991-06-18
1993-04-06
Pihulic, Daniel T.
Communications, electrical: acoustic wave systems and devices
Echo systems
Side scanning or contour mapping sonar systems
367 11, G01S 1589
Patent
active
052009319
ABSTRACT:
A method and apparatus for the generation of a three-dimensional image representing structures detected within a volume. Two dimensional differential phase measurements are made on backscatter signals. Azimuth, elevation and range are calculated over a statistically large number of spatially diverse backscatter returns and used to construct a histogram of backscatter data. The histogram of backscatter data can be processed with standard image processing techniques to produce terrain maps or volumetric models of the volume of water. A system constructed according to the methods of this invention is capable of producing a three-dimensional map of the volume insonified without mechanical array scanning or electronic beam scanning. A combination of two or more volumetric scanning systems can be used to increase the resolution achievable in modelling the volumetric area.
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Kosalos James G.
Roberts James L.
Schlatter John D.
Szender Stephen J.
Alliant Techsystems Inc.
Pihulic Daniel T.
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