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Proceedings Paper

Optimal Least Square Filtering With A Digital Optically Interconnected Processor
Author(s): Alastair D. McAulay
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Paper Abstract

An optical crossbar interconnected signal processor, proposed previously, is reviewed. The ability to implement difficult-to-parallelize algorithms on this processor with reasonable efficiency is illustrated using optimal least square filtering. An inverse filter for removing the effects of a ringing source from reflected data is used as an example. A large number of Toeplitz matrix equations must be solved to determine the optimum inverse filter length and phase. Efficient parallel computation is required. Equations for Levinson's algorithm are provided and an implementation on the optical system is suggested. Performance estimates suggest that interleaving may he used to improve efficiency from 5% to approximately 30%.

Paper Details

Date Published: 24 September 1986
PDF: 8 pages
Proc. SPIE 0639, Optical Information Processing II, (24 September 1986); doi: 10.1117/12.964332
Show Author Affiliations
Alastair D. McAulay, Texas Instruments (United States)

Published in SPIE Proceedings Vol. 0639:
Optical Information Processing II
Dennis R. Pape, Editor(s)

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