Combining range-general and range-specific techniques for late-time focused image reconstructiona)

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Abstract

Synthetic aperture sonar (SAS) is an acoustic method for detecting objects in an environment. Conventional SAS image reconstruction techniques invert a forward model based on geometric scattering and straight-line propagation. Acoustic features that do not fit this model, such as multiple scattering and late-time returns, appear out of focus. This paper describes an image reconstruction technique that selectively applies range-general and range-specific methods to improve the focus of late-time returns while maintaining image quality away from the focal plane. The technique is demonstrated on experimental data and compared with a range-specific algorithm.

Original languageEnglish (US)
Article number036001
JournalJASA Express Letters
Volume4
Issue number3
DOIs
StatePublished - Mar 1 2024

All Science Journal Classification (ASJC) codes

  • Acoustics and Ultrasonics
  • Music
  • Arts and Humanities (miscellaneous)

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