Abstract

Investigation and application of subcoded information carriers are discussed. Sequences of orthogonal states introduce basic systems that allow for parallel processing in the spatial domain. Moiré simulation experiments illustrate some peculiarities of the coding and decoding procedures. Characteristic features achievable by using subcoded carriers are sign determination of displayed variations, phase multiplication, and improved signal-to-noise ratio. A hybrid version of a moiré test method is described to show the flexibility and filtering possibilities when orthogonal subcodes are used under realistic conditions.

© 1983 Optical Society of America

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