Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Coherence and speckle reduction in compounded correlated phased arrays: synthetic aperture radar

Not Accessible

Your library or personal account may give you access

Abstract

The theory of speckle reduction by compounding signal intensities from multiple correlated phased arrays is developed and then applied specifically to synthetic aperture radar (SAR). Correlated subarrays are obtained from a large coherent phased array by division into subarrays after coherent signal detection. Overlapping subarrays share common elements. A model of SAR suitable for coherence analysis is used to calculate the matrix elements of the covariance matrix for the correlated arrays. The results are coupled with statistical analyses of compounded systems to calculate the first-order speckle statistics for spatially compounded multiple correlated phased arrays. Extensions of this work to fixed phased array systems in radar and ultrasound are dicussed but are not calculated in detail.

© 1986 Optical Society of America

Full Article  |  PDF Article
More Like This
Speckle reduction in synthetic-aperture radars

Leonard J. Porcello, Norman G. Massey, Richard B. Innes, and James M. Marks
J. Opt. Soc. Am. 66(11) 1305-1311 (1976)

Iterative homomorphic technique for speckle reduction in synthetic-aperture radar imaging

Giorgio Franceschetti, Vito Pascazio, and Gilda Schirinzi
J. Opt. Soc. Am. A 12(4) 686-694 (1995)

Noise and speckle reduction in synthetic aperture radar imagery by nonparametric Wiener filtering

Robert S. Caprari, Alvin S. Goh, and Emily K. Moffatt
Appl. Opt. 39(35) 6633-6640 (2000)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (74)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved