Imaging methods and apparatus using model-based array signal pro

Details Imaging methods and apparatus using model-based array signal pro Imaging methods and apparatus using model-based array signal pro

1998-09-04

2000-10-10

Gregory, Bernarr E.

Communications: directive radio wave systems and devices (e.g.,

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342 22, 342 25, 342176, 342190, 342191, 342195, 367 7, 367 87, 367 88, 367117, 367131, G01S 1389

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06130641&

ABSTRACT:
An apparatus and method for imaging uses a transducer array which receives a scattered signal from a region of interest. The method analyses the scattered signal on the basis of a model which assumes several independent point scatterers at each range. The method determines the amplitudes and angles of arrival for the several scatterers. The method provides much higher resolution than is possible with conventional beam formed sonar arrays of practical size. The method is capable of resolving features which cannot be resolved by conventional sidescan sonar or interferometric side scan sonar. The method may be used with electromagnetic or acoustic scattering signals.

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English Abstract for Japan Patent Application JP09171069A. Jun. 1997.

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