Abstract

The effect of a random phase screen on the performance of an imaging system is described. Analytical expressions of the average image spectrum are developed for both coherent and incoherent radiation. It is shown that the random-phase-induced ansioplanatism can give rise to the characteristics of superresolution. The conditions of superresolution are derived, and the relationship among various parameters for the occurrence of superresolution is discussed.

© 1994 Optical Society of America

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