The theory and application of electronic moiré patterns

摘要

A theoretical and experimental approach to the theory of moiré patterns is presented from an electrical engineering point of view. It is shown that moiré patterns can be generated electronically and displayed on a screen of an oscilloscope with better patterns definition than that produced by optical filters. An example illustrates a simple way to optically detect repetitive signals buried in noise.Several other applications of electronically generated moiré patterns are also considered.