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Joint transform correlator based logical processor

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2 Author(s)
Alam, M.S. ; Dept. of Electr. Eng., Dayton Univ., OH, USA ; Karim, M.A.

Real-time optical implementation of a logical processor using a joint transform correlator (JTC) is proposed. For illustration, the authors implemented a 4-to-2 encoder using a JTC by spatially encoding the corresponding minterms. Since the use of a single JTC may slow down a logic system with a large number of minterms, a multichannel JTC (MJTC) may be used to speed up the processing. For the MJTC, it was found that four-minterm-based reference images can be used in each channel without significantly deteriorating the system efficiency. Simulation results for both sequential and parallel implementation techniques are presented

Published in:

Aerospace and Electronics Conference, 1992. NAECON 1992., Proceedings of the IEEE 1992 National

Date of Conference:

18-22 May 1992

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