Analytic expression for the MTF of an array of circular unaberrated phased apertures.
An exact analytic expression for the MTF of an aberration-free phased array consisting of identical round subtelescopes is derived. This formula is employed to study several cases of phased array configurations, to gain insights on MTF trends for various subtelescope number and location. Perspective plots of the MTF patterns and their cross section across orthogonal axes are generated and presented.
Kwong
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