Abstract

We propose the design of a low-cost passive scintillometer that measures the strength of optical turbulence by analyzing scintillation in the image of a straight edge between the two areas of uniform, but distinct, brightness. Theory for scintillations variance is developed based on the rigorous path integral propagation model. We propose approximations that cover the most promising conditions for the passive scintillometer applications, and we describe the image processing technique that separates the target characteristics from the turbulence scintillations. Results of the proof-of-concept field experiment where images of the target were taken by a consumer grade camera equipped with an inexpensive telephoto lens are presented.

© 2021 Optical Society of America

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Supplementary Material (1)

NameDescription
Supplement 1       Description of analytical transformations and details of measurements

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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