Influence of stratospheric turbulence on infrared imaging

Gurvich, A. S.; Belen'kii, Mikhail S.

doi:10.1364/josaa.12.002517

Cited by 69 publications

(23 citation statements)

References 14 publications

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“…Several experimental data and measurements indicate that the turbulence in the upper troposphere and stratosphere, or along nonhomogeneous path, deviates from predictions of the Kolmogorov model [2][3][4][5][6]. Other experiments showed that atmospheric turbulence in maritime environments can assume a different statistical behavior with respect to Kolmogorov [7][8][9][10][11][12][13]. In addition, anisotropy in stratospheric turbulent inhomogeneities has been experimentally investigated [14][15][16][17], and laboratory results have shown that turbulence can be anisotropic.…”

Section: Introductionmentioning

confidence: 99%

Light propagation through anisotropic turbulence

Toselli

Agrawal

Restaino³

2011

J. Opt. Soc. Am. A

133

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A wealth of experimental data has shown that atmospheric turbulence can be anisotropic; in this case, a Kolmogorov spectrum does not describe well the atmospheric turbulence statistics. In this paper, we show a quantitative analysis of anisotropic turbulence by using a non-Kolmogorov power spectrum with an anisotropic coefficient. The spectrum we use does not include the inner and outer scales, it is valid only inside the inertial subrange, and it has a power-law slope that can be different from a Kolmogorov one. Using this power spectrum, in the weak turbulence condition, we analyze the impact of the power-law variations α on the long-term beam spread and scintillation index for several anisotropic coefficient values ς. We consider only horizontal propagation across the turbulence cells, assuming circular symmetry is maintained on the orthogonal plane to the propagation direction. We conclude that the anisotropic coefficient influences both the long-term beam spread and the scintillation index by the factor ς 2−α .

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Section: Introductionmentioning

confidence: 99%

Light propagation through anisotropic turbulence

Toselli

Agrawal

Restaino³

2011

J. Opt. Soc. Am. A

133

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“…Compared with Kolmogorov turbulence, non-Kolmogorov turbulence covers a more wide range of atmospheric layers and this has been demonstrated by experimental results [4][5][6][7] and theoretical investigations [8,9]. Series non-Kolmogorov turbulence refractive-index fluctuations spectral models, including the non-Kolmogorov spectrum [10], the generalized exponential spectrum [11], and the generalized modified atmospheric spectrum [12], have been proposed to investigate the atmospheric turbulence MTF under weak non-Kolmogorov turbulence [11,13].…”

Section: Introductionmentioning

confidence: 99%

Influence of moderate-to-strong non-Kolmogorov turbulence on the imaging system by atmospheric turbulence MTF

Cui

Xue

Cao

et al. 2015

Optik

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“…Free-space laser-optics communication (FSO) has some potential advantages than 90 and researched the effects of non-Kolmogorov stratospheric turbulence on the scintillation and coherence of starlight, as well as on the star-image degradation [23]. Later M. S. Belen'kii again investigated the influence of non-Kolmogorov stratospheric turbulence on the starimage motion [24].…”

Section: Introductionmentioning

confidence: 99%

“…Later M. S. Belen'kii again investigated the influence of non-Kolmogorov stratospheric turbulence on the starimage motion [24]. In 2009, S. Fu et al revised the non-Kolmogorov power spectrum introduced in [23], in view of the consistency of the power spectrum with the structure function and the newest experimental data of lidar measurements, and the contribution of nonKolmogorov turbulence to the fluctuations in the AOA of starlight was then estimated [25].…”

Section: Introductionmentioning

confidence: 99%

Influence of non-kolmogorov turbulence on intensity fluctuations in laser satellite communication

Zhang

Liu

et al. 2012

J Russ Laser Res

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Satellite laser communication holds the potential for high-bandwidth communication, but the atmosphere can significantly affect the capability of this type of communication systems for satellite-toground and ground-to-satellite data links to transfer information consistently and operate effectively. Usually the influence of atmosphere on satellite laser communication is investigated based on the Kolmogorov turbulence model. However, both increasing experimental evidence and theoretical investigations have shown that the Kolmogorov theory is sometimes incomplete to describe the atmospheric statistics properly, in particular, in some portions of the atmosphere. Considering a non-Kolmogorov turbulent power spectrum with power law −5 that describes the refractive-index fluctuations in the atmosphere above 6 km, we calculate the scintillation index of a lowest-order Gaussian-beam wave under the weak-fluctuation condition. Then, considering a combined power spectrum of refractiveindex fluctuations and using the expression obtained, we analyze the joint influence of the Kolmogorov turbulence from the ground to 6 km and non-Kolmogorov turbulence above 6 km on the scintillation indices of laser beams used in ground-to-satellite and satellite-to-ground laser communication links. We show that the scintillation index in satellite laser communication is equal to the sum of the scintillation indices induced by the Kolmogorov turbulence from ground to 6 km and that caused by the non-Kolmogorov turbulence above 6 km. Also we investigate variations of the scintillation index with the beam radius on the transmitter, wavelength, the radial distance, and zenith angle. Finally, comparing the scintillation index induced by these two turbulences with the conventional results, we show that the scintillation index induced by these two turbulences is a bit smaller than the conventional results.

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Influence of stratospheric turbulence on infrared imaging

Cited by 69 publications

References 14 publications

Light propagation through anisotropic turbulence

Light propagation through anisotropic turbulence

Influence of moderate-to-strong non-Kolmogorov turbulence on the imaging system by atmospheric turbulence MTF

Influence of non-kolmogorov turbulence on intensity fluctuations in laser satellite communication

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