Results 11 to 20 of about 1,092 (161)
Field correlation of flat-topped beams in anisotropic non-Kolmogorov turbulent atmosphere
Field correlation of flat-topped beams in anisotropic non-Kolmogorov turbulent atmosphere is formulated and evaluated. Larger anisotropic factor causes higher field correlations.
Yalçın Ata, Yahya Baykal
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Average channel capacity in anisotropic atmospheric non-Kolmogorov turbulent medium
Abstract The average channel capacity of a free space optical (FSO) communication system running an intensity modulated Gaussian beam is examined in anisotropic non-Kolmogorov atmospheric weak turbulence based on Rytov variance. Results are obtained by employing the log-normal distribution of irradiance fluctuations corresponding to weak turbulence ...
Ata, Yalcin +2 more
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Gaussian distribution is used to describe the power law along the propagation path and phase screen of the non-Kolmogorov turbulence is proposed based on the equivalent refractive-index structure constants.
Ming Chen +5 more
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The expressions of wave structure function (WSF) and long-exposure modulation transfer function (MTF) for laser beam propagation through non-Kolmogorov turbulence were derived in our previous work. In this paper, based on anisotropic maritime atmospheric
Bing Guan +3 more
doaj +2 more sources
Average channel capacity of free space optical (FSO) communication systems using a Gaussian beam with the intensity modulation and direct detection technique is investigated in anisotropic non-Kolmogorov strong turbulent atmosphere. The channel model is selected as gamma-gamma distribution, which is valid for strong turbulence.
Yalçın Ata, Ata, Yalcin
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Understanding Atrial Fibrillation Complexity Through the Lens of Turbulence Dynamics: Implications for Treatment Strategies. [PDF]
ABSTRACT Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia encountered in clinical practice. Its incidence increases significantly with age and has become a major global public health issue. Although research into the mechanisms of AF has spanned over a century‐ranging from the reentry theory to the rotor hypothesis‐none of these
Chu X, Jiang X, Qiao Q, Wang X, Ye H.
europepmc +2 more sources
Non-Classic Atmospheric Optical Turbulence: Review
Theoretical models and results of experimental campaigns relating to non-classic regimes occurring in atmospheric optical turbulence are overviewed.
Olga Korotkova, Italo Toselli
doaj +1 more source
Satellite laser communication can achieve high-speed, high-precision, and high-security broadband communication without being constrained by the electromagnetic spectrum, which has attracted attention.
Xuewen Jiang, Yi Wang, Wangyue Lu
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Turbulence in space plasmas usually exhibits an energy cascade in which large-scale magnetic fluctuations are dominated by non-linear MHD wave–wave interactions following a Kolmogorov-like power-law spectrum.
Roberto E. Navarro, Pablo S. Moya
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Free space optical system performance for a Gaussian beam propagating through non Kolmogorov weak turbulence [PDF]
Atmospheric turbulence has been described for many years by Kolmogorov's power spectral density model because of its simplicity. Unfortunately several experiments have been reported recently that show Kolmogorov theory is sometimes incomplete to describe
LARRY C. ANDREWS +6 more
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