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Proceedings Paper

Correlator based on joint Fourier transform of mutually incoherent fields using a second order hologram
Author(s): Peter V. Polyanskii
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Paper Abstract

Generalization of the linear matched filter concept to nonlinear matched filter is presented. It is shown that the nonlinearity introduced in the filter domain results in the component of the diffraction hologram structure which is associated with a whole set of a joint power spectrum for mutually incoherent (noninterfering) input signals. It is shown that a correlator with a holographic match filter whose amplitude transmittance expanded in powers of exposure contains up to and including second order terms (the so-called 'second order hologram') is a new class of 2D or 3D optical associative memories.

Paper Details

Date Published: 31 October 1994
PDF: 6 pages
Proc. SPIE 1991, Diffractometry and Scatterometry, (31 October 1994); doi: 10.1117/12.192006
Show Author Affiliations
Peter V. Polyanskii, Yuriy Fedkovych Chernivtsi National Univ. (Ukraine)

Published in SPIE Proceedings Vol. 1991:
Diffractometry and Scatterometry
Maksymilian Pluta; Mariusz Szyjer, Editor(s)

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