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Proceedings Paper

Reciprocal path imaging: a technique for the mitigation of image degradation due to atmospheric turbulence
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Paper Abstract

A naturally occurring, conjugate wave phenomenon in monostatic laser imaging applications is caused by reciprocal scattering pas which experience identical phase delays during the double passage of an electromagnetic wave through a random phase screen or turbulent medium. This 'opposition effect' of 'enhanced backscatter' phenomenon is known to be caused by constructive interference between reciprocal multiple scattering paths. Reciprocal path imaging (RPI) is an attempt to exploit this phenomenon for obtaining diffraction-limited images of extended objects obscured by a random phase screen or turbulent atmosphere. We report upon our current effort to investigate RPI with sparse array receivers and its potential as a mechanism for achieving high-resolution imaging through a turbulent atmosphere without the use of adaptive optics for image compensation. Preliminary work is reviewed and several RPI concepts to be evaluated in the laboratory are discussed.

Paper Details

Date Published: 29 June 1994
PDF: 8 pages
Proc. SPIE 2222, Atmospheric Propagation and Remote Sensing III, (29 June 1994); doi: 10.1117/12.178015
Show Author Affiliations
Anita Kotha, CREOL/Univ. of Central Florida (United States)
James E. Harvey, CREOL/Univ. of Central Florida (United States)
Ronald L. Phillips, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 2222:
Atmospheric Propagation and Remote Sensing III
Walter A. Flood; Walter B. Miller, Editor(s)

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