Optimal Least Square Filtering With A Digital Optically Interconnected Processor

Alastair D. McAulay

doi:10.1117/12.964332

24 September 1986 Optimal Least Square Filtering With A Digital Optically Interconnected Processor

Alastair D. McAulay

Proceedings Volume 0639, Optical Information Processing II; (1986) https://doi.org/10.1117/12.964332
Event: 1986 Technical Symposium Southeast, 1986, Orlando, United States

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%.

Citation Download Citation

Alastair D. McAulay "Optimal Least Square Filtering With A Digital Optically Interconnected Processor", Proc. SPIE 0639, Optical Information Processing II, (24 September 1986); https://doi.org/10.1117/12.964332

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