Effect of the motion of a cosmic source on the frequency spectra for amplitude and phase fluctuations in a turbulent atmosphere

1969 ◽  
Vol 9 (6) ◽  
pp. 628-632 ◽  
Author(s):  
G. I. Skrypnik
Keyword(s):  
Turbulent Atmosphere ◽  
Frequency Spectra ◽  
Phase Fluctuations ◽  
Cosmic Source

Cooled Stacked-Actuator Deformable Mirror for Compensation for Phase Fluctuations in a Turbulent Atmosphere

2020 ◽  
Vol 33 (6) ◽  
pp. 584-590
Author(s):  
V. V. Toporovsky ◽  
A. V. Kudryashov ◽  
V. V. Samarkin ◽  
A. L. Rukosuev ◽  
A. N. Nikitin ◽  
...  
Keyword(s):  
Turbulent Atmosphere ◽  
Deformable Mirror ◽  
Phase Fluctuations

Phase fluctuations when focusing light in a turbulent atmosphere

1983 ◽  
Vol 26 (12) ◽  
pp. 1096-1101 ◽  
Author(s):  
M. S. Belen'kii ◽  
A. P. Shelekhov
Keyword(s):  
Turbulent Atmosphere ◽  
Phase Fluctuations

Interferometric Study of Phase Fluctuations of a Laser Beam Through the Turbulent Atmosphere

1968 ◽  
Vol 7 (11) ◽  
pp. 2246 ◽  
Author(s):  
M. Bertolotti ◽  
M. Carnevale ◽  
L. Muzii ◽  
D. Sette
Keyword(s):  
Laser Beam ◽  
Turbulent Atmosphere ◽  
Phase Fluctuations ◽  
Interferometric Study

scholarly journals Nonlinear dynamics of wind waves: multifractal phase/time effects

1994 ◽  
Vol 1 (1) ◽  
pp. 51-56 ◽  
Author(s):  
R. H. Mellen ◽  
I. A. Leykin
Keyword(s):  
Nonlinear Dynamics ◽  
Wind Waves ◽  
Time Analysis ◽  
Frequency Spectra ◽  
Phase Fluctuations ◽  
Phase Time ◽  
Laboratory Flume ◽  
Analytic Signals ◽  
Limiting Value ◽  
Promising Avenue

Abstract. In addition to the bispectral coherence method, phase/time analysis of analytic signals is another promising avenue for the investigation of phase effects in wind waves. Frequency spectra of phase fluctuations obtained from both sea and laboratory experiments follow an F-β power law over several decades, suggesting that a fractal description is appropriate. However, many similar natural phenomena have been shown to be multifractal. Universal multifractals are quantified by two additional parameters: the Lévy index 0 < α < 2 for the type of multifractal and the co-dimension 0 < C1 < 1 for intermittence. The three parameters are a full statistical measure the nonlinear dynamics. Analysis of laboratory flume data is reported here and the results indicate that the phase fluctuations are 'hard multifractal' (α > 1). The actual estimate is close to the limiting value α = 2,  which is consistent with Kolmogorov's lognormal model for turbulent fluctuations. Implications for radar and sonar backscattering from the sea surface are briefly considered.

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