29 September 1994 Concept of precision in analog-based discrete numeric optical processors
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Abstract
Within this paper we discuss the precision of a fixed-point discrete numeric vector-matrix processor. The concept of precision relates to the quantity of numerically exact information in the processor's calculated result. This analysis is based on a signal space formulation which allows for the determination of precision from the uncertainty in the output signal space. Characteristics of the ideal signal space are explored and then the implications of simple nonideal temporal and spatial effects are considered. The resulting precision limitations are discussed in terms of numerical roundoff and significance errors.
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Michael V. Morelli, Michael V. Morelli, Thomas F. Krile, Thomas F. Krile, John F. Walkup, John F. Walkup, } "Concept of precision in analog-based discrete numeric optical processors", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); doi: 10.1117/12.187288; https://doi.org/10.1117/12.187288
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