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

Shawn Kraut; Jason Gallicchio; David Brady

doi:10.1117/12.459013

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

Shawn Kraut, Jason Gallicchio, David Brady

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

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.

Original language	English (US)
Pages (from-to)	267-274
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	4789
DOIs	https://doi.org/10.1117/12.459013
State	Published - 2002
Externally published	Yes
Event	Algorithms and Systems for Optical Information Processing VI - Seattle, WA, United States Duration: Jul 9 2002 → Jul 10 2002

Keywords

Array processing
Beamforming
Direction-finding
Interferometry
Multiplex measurement
Rotational-shear
Spectroscopy
Super-resolution

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

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10.1117/12.459013

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

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.",

keywords = "Array processing, Beamforming, Direction-finding, Interferometry, Multiplex measurement, Rotational-shear, Spectroscopy, Super-resolution",

author = "Shawn Kraut and Jason Gallicchio and David Brady",

year = "2002",

doi = "10.1117/12.459013",

language = "English (US)",

volume = "4789",

pages = "267--274",

journal = "Proceedings of SPIE - The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

note = "Algorithms and Systems for Optical Information Processing VI ; Conference date: 09-07-2002 Through 10-07-2002",

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TY - JOUR

T1 - High-resolution direction finding and scan-free spectrum estimation with rotational-shear interferometric sensor arrays

AU - Kraut, Shawn

AU - Gallicchio, Jason

AU - Brady, David

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

KW - Array processing

KW - Beamforming

KW - Direction-finding

KW - Interferometry

KW - Multiplex measurement

KW - Rotational-shear

KW - Spectroscopy

KW - Super-resolution

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U2 - 10.1117/12.459013

DO - 10.1117/12.459013

M3 - Conference article

AN - SCOPUS:0036986655

SN - 0277-786X

VL - 4789

SP - 267

EP - 274

JO - Proceedings of SPIE - The International Society for Optical Engineering

JF - Proceedings of SPIE - The International Society for Optical Engineering

T2 - Algorithms and Systems for Optical Information Processing VI

Y2 - 9 July 2002 through 10 July 2002

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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