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Proceedings Paper

High-resolution direction finding and scan-free spectrum estimation with rotational-shear interferometric sensor arrays
Author(s): Shawn Kraut; Jason Richard Gallicchio; David J. Brady
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Paper Abstract

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.

Paper Details

Date Published: 27 November 2002
PDF: 8 pages
Proc. SPIE 4789, Algorithms and Systems for Optical Information Processing VI, (27 November 2002); doi: 10.1117/12.459013
Show Author Affiliations
Shawn Kraut, Duke Univ. (United States)
Jason Richard Gallicchio, Duke Univ. (United States)
David J. Brady, Duke Univ. (United States)

Published in SPIE Proceedings Vol. 4789:
Algorithms and Systems for Optical Information Processing VI
Bahram Javidi; Demetri Psaltis, Editor(s)

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