Aperture averaging and the temporal spectrum of optical scintillations

Larry C. Andrews; Ronald L. Phillips; Cynthia Y. Young

doi:10.1117/12.371315

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10 December 1999 Aperture averaging and the temporal spectrum of optical scintillations

Larry C. Andrews, Ronald L. Phillips, Cynthia Y. Young

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Proceedings Volume 3866, Optics in Atmospheric Propagation and Adaptive Systems III; (1999) https://doi.org/10.1117/12.371315
Event: Remote Sensing, 1999, Florence, Italy

Abstract

By using a recently developed theory of scintillation that is valid under fluctuation conditions that include the focusing and saturation regimes, we develop a general model for predicting power fluctuations (or aperture averaging) over a finite-size collecting aperture. In addition, we calculate the covariance function and implied temporal spectrum of such power fluctuations. Increasing the size of the collecting aperture decreases the high frequency content of the irradiance spectrum.

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Larry C. Andrews, Ronald L. Phillips, and Cynthia Y. Young "Aperture averaging and the temporal spectrum of optical scintillations", Proc. SPIE 3866, Optics in Atmospheric Propagation and Adaptive Systems III, (10 December 1999); https://doi.org/10.1117/12.371315

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