High-resolution direction finding and scan-free spectrum estimation with rotational-shear interferometric sensor arrays


Journal Article

In this paper we investigate the application of a rotational-shear interferometer, toward the problem of simultaneously estimating the directions of well-localized sources, and their spectral profiles. Rotational shear makes possible the acquisition of a spectrum estimate, without the mechanical scan required in using a Michelson interferometer in Fourier-transform spectroscopy. The spectrum and angle estimates are obtained computationally. The interferometric data enables the application of super-resolution direction-finding techniques commonly used in radar and sonar array processing.

Full Text

Duke Authors

Cited Authors

  • Kraut, S; Gallicchio, J; Brady, D

Published Date

  • December 1, 2002

Published In

Volume / Issue

  • 4789 /

Start / End Page

  • 267 - 274

International Standard Serial Number (ISSN)

  • 0277-786X

Digital Object Identifier (DOI)

  • 10.1117/12.459013

Citation Source

  • Scopus