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Joint transform correlator based logical processor
Conference proceeding

Joint transform correlator based logical processor

M.S. Alam and M.A. Karim
IEEE National Aerospace and Electronics Conference, 1992, pp.1110-1116 vol.3
1992
DOI: https://doi.org/10.1109/NAECON.1992.220627

Abstract

CADCAM Computer aided manufacturing Correlators Fourier transforms Holographic optical components Optical device fabrication Optical filters Optical recording Holography Pattern Recognition
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.< >

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