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Proceedings Paper

Adaptive Optical Signal Processing Architecture Using Signed-Digit Number System
Author(s): P A Ramamoorthy; G Govind
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Paper Abstract

Adaptive signal processing presents extremely demanding requirements to current signal processing hardware. In this paper Signed-Digit arithmetic techniques are evaluated for applicability in adaptive signal processing architectures. It is shown that signed-digit arithmetic offers the advantage of parallelism in computation without the accompanying conversion problems of the residue arithmetic representation. A brief overview of the basic features of signed-digit arithmetic are presented with structures for addition and multiplication. It has been shown that these primitives can be used for matrix operations, including least-square minimization. In optical implementations of residue arithmetic architectures, look-up tables are generally used, which can also be used for a signed-digit implementation.

Paper Details

Date Published: 12 April 1988
PDF: 7 pages
Proc. SPIE 0886, Optoelectronic Signal Processing for Phased-Array Antennas, (12 April 1988); doi: 10.1117/12.944195
Show Author Affiliations
P A Ramamoorthy, University of Cincinnati (United States)
G Govind, University of Cincinnati (United States)


Published in SPIE Proceedings Vol. 0886:
Optoelectronic Signal Processing for Phased-Array Antennas
Kul B. Bhasin; Brian M. Hendrickson, Editor(s)

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