Polar phase screens: a comparative analysis with other methods of random phase screen generation

Rebecca J. Eckert; Matthew E. Goda

doi:10.1117/12.681029

1 September 2006 Polar phase screens: a comparative analysis with other methods of random phase screen generation

Rebecca J. Eckert, Matthew E. Goda

Proceedings Volume 6303, Atmospheric Optical Modeling, Measurement, and Simulation II; 630301 (2006) https://doi.org/10.1117/12.681029
Event: SPIE Optics + Photonics, 2006, San Diego, California, United States

Abstract

Random phase screens are essential elements of simulating light propagation through turbulent media. In order to be effective, they must accurately reflect theory and be implementable by the user. This document explains and evaluates three methods of generating random phase screens: using a Fourier series upon a polar frequency grid with logarithmic spacing; using the fast Fourier transform, with its cartesian frequency grid; and using Zernike polynomials. It provides a comparison of the polar Fourier series technique with the two more common techniques (fast Fourier transform and Zernike), with the end result of giving the users enough information to choose which method best fits their needs. The evaluation criteria used are generation time (usability) and phase structure function (accuracy).

Citation Download Citation

Rebecca J. Eckert and Matthew E. Goda "Polar phase screens: a comparative analysis with other methods of random phase screen generation", Proc. SPIE 6303, Atmospheric Optical Modeling, Measurement, and Simulation II, 630301 (1 September 2006); https://doi.org/10.1117/12.681029

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