8 September 2010 Optical deconvolution for multilayer reflected data
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Proceedings Volume 7797, Optics and Photonics for Information Processing IV; 779709 (2010); doi: 10.1117/12.860176
Event: SPIE Optical Engineering + Applications, 2010, San Diego, California, United States
Abstract
Reflections from a multilayer medium overlap when a source pulse is longer than the travel time between layers, as arises in geophysics and ground penetrating radar for mine detection. We propose an optical system to deconvolve out the source pulse by spectral factorization. The received signal is entered into a liquid crystal joint transform correlator to compute an autocorrelation function. The autocorrelation function is used in an optical dataflow computer to compute the linear prediction or autoregressive coefficients which are then used to provide the reflection coefficients for each layer.
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Alastair D. McAulay, "Optical deconvolution for multilayer reflected data", Proc. SPIE 7797, Optics and Photonics for Information Processing IV, 779709 (8 September 2010); doi: 10.1117/12.860176; https://doi.org/10.1117/12.860176
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KEYWORDS
Deconvolution

Joint transforms

Digital signal processing

Optical correlators

Multilayers

Geophysics

Reflection

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