Reduced wavenumber synthetic aperture

Details Reduced wavenumber synthetic aperture Reduced wavenumber synthetic aperture

1996-06-05

1997-10-07

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Acoustic image conversion

367 88, 342179, 342 25, G01S 1500

Patent

active

056755503

ABSTRACT:
A system for radiation imaging of objects within a target area utilizing echo signals from a target area such as a patch of seafloor or the anatomy of a body. Data is obtained by time domain measurements received at a plurality of transducers in either monostatic or bistatic mode. Using multidimensional interferometry and multidimensional Fourier transforms, the data is reconstructed in multiple temporal and spatial frequency domains with a unique reduced wavenumber characteristic that retains the resolution potential of a traditional synthetic aperture approach. The system is inherently robust in applications with significant transceiver motion and/or variations in the propagation characteristics of the surrounding medium.

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