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Proceedings Paper

Design of optoelectronic scalar-relation vector processors with time-pulse coding
Author(s): Vladimir G. Krasilenko; Vitaliy F. Bardachenko; Alexander I. Nikolsky; Alexander A. Lazarev; Oleg K. Kolesnytsky
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Paper Abstract

The results of design of optoelectronic scalar-relation vector processors (SRVP) with time-pulse coding as base cells for homogeneous 1D and 2D computing mediums are considered in the paper. The conception is founded on the use of advantages of time-pulse coding in hardware embodyings of multichannel devices of analog neurobiologic and time-pulse photoconverters. The two-stage structure of the SRVP mapping generalized mathematical model of quasiuniversal map of the relation between two vectors is designed on the basis of the mathematical base which includes the generalized operations of equivalence (nonequivalence), generalized operations of t-norm and s-norm of neuro-fuzzy logic. It is shown that the application of time-pulse coding allows to use quasiuniversal elements of two-valued logic as base blocks on both cascades of the processor. Four-input universal logical elements of two-valued logic (ULE TVL) with direct and complement outputs are used for vectors analog components processing by the first cascade of the SRVP. In a modified variant the ULE TVL have direct and inverse digital outputs for direct and complement time-pulse outputs and are supplied with additional optical signals conversion drivers. The ULE TVL of the second cascade has 2n or 4n inputs, where n - dimension of treated vectors. The circuits of the ULE TVL are considered on the basis of parallel analog-to-digital converters and digital circuits implemented on CMOS transistors, have optical inputs and outputs, and have following characteristics: realized on 1.5mm technology CMOS transistors; the input currents range - 100nA...100uA; the supply voltage - 3...15V; the relative error is less than 0.5%; the output voltage delay lays in range of 10...100ns. We consider structural design and circuitry of the SRVP base blocks and show that all principal components can be implemented on the basis of optoelectronic photocurrent transformers on current mirrors comparators with two-threshold and multi-threshold discriminations.

Paper Details

Date Published: 28 March 2005
PDF: 9 pages
Proc. SPIE 5813, Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2005, (28 March 2005); doi: 10.1117/12.603481
Show Author Affiliations
Vladimir G. Krasilenko, Open International Univ. of Human Development (Ukraine)
Vitaliy F. Bardachenko, Institute of Cybernetics (Ukraine)
Alexander I. Nikolsky, Open International Univ. of Human Development (Ukraine)
Alexander A. Lazarev, Open International Univ. of Human Development (Ukraine)
Oleg K. Kolesnytsky, Open International Univ. of Human Development (Ukraine)


Published in SPIE Proceedings Vol. 5813:
Multisensor, Multisource Information Fusion: Architectures, Algorithms, and Applications 2005
Belur V. Dasarathy, Editor(s)

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