We comment on the jitter model proposed by Stark [J. Opt. Soc. Am. <b>5</b>, 700 (1977)] to explain the spectral properties of a nonoverlapping grain structure (NOGS), and we discuss the points of concordance and disparity between Stark’s work and our own. A more general formulation for the twodimensional jitter model is established on a theoretical basis. This different approach permits deeper insight into the interpretation of jitter model spectral properties, as confirmed by our experimental results. A one-dimensional model generated by a Poisson process is used to establish the <b>NOGS</b>.
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