Patent · US Expired

Imaging methods and apparatus using model-based array signal processing

US6130641A · kind A · utility

91Cited by
9References
41Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 4, 1998
Grant dateOct 10, 2000
Priority date—
Expiry dateSep 4, 2018

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01S3/8006
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.