title: Ensquared power for obscured circular pupils with off-center imaging.
abstract: Power incident upon square detectors in the focal plane of diffraction-limited optical systems with obscured circular pupils is computed as a function of the line-of-sight position on the detector. The results are applied to an analysis of the dependence of the signal-to-noise ratio on detector size for obscuration ratios of 0, 0.25, and 0.5 and for line-of-sight position on the detector.
authors: L M
authors: LM
authors: Beyer
authors: S H
authors: SH
authors: Cobb
authors: L C
authors: LC
authors: Clune