Abstract
We present a theory for wave scintillation in the situation of a
time-dependent partially coherent source and a time-dependent randomly
heterogeneous medium. Our objective is to understand how the
scintillation index of the measured intensity depends on the source
and medium parameters. We deduce from an asymptotic analysis of the
random wave equation a general form of the scintillation index, and we
evaluate this in various scaling regimes. The scintillation index is a
fundamental quantity that is used to analyze and optimize imaging and
communication schemes. Our results are useful to quantify the
scintillation index under realistic propagation scenarios and to
address such optimization challenges.
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Data availability
Data underlying the results presented in Fig. 7 were published in [12]. No other data were analyzed in the presented research, and no
data were generated.
12. C. Nelson, S. Avramov-Zamurovic, O. Korotkova, S. Guth, and R. Malek-Madani, “Scintillation reduction in
pseudo multi-Gaussian Schell model beams in the maritime
environment,” Opt. Commun. 364, 145–149
(2016). [CrossRef]
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