The basic mechanism underlying the generation of Moire' patterns in line scanner data acquisition systems is examined. A general expression is developed in terms of typical system parameters for the reproduced image of such systems and the interaction of the image spectrum; the raster frequency and digital sampling frequency of the A/D conversion process are discussed and examples given. System design requirements for avoiding Moire' pattern generation and two-dimensional aliasing are discussed.
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McGillem et al. (1974) studied this question.
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