atmospheric turbulence
Dramatic Atmospheric Turbulence Effects on Submarine Laser Communication Systems (SLCS) and Free Space Optics (FSO)
... bad atmospheric conditions have harmful effects on the transmission performance of ...the atmospheric attenuation effects on FSO communication that occurs to laser beam at this ...of atmospheric ...
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Imaging through Kolmogorov model of atmospheric turbulence for shearing interferometer wavefront sensor
... It is important to understand the Polarization Shearing Interferometer theoretically and to sense the wavefront errors. A theoretical study has been undertaken. First, explanations about the simulations that were carried ...
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Stabilizing Atmospheric Turbulence in a Long Range Surveillance using Dark Channel Prior
... and turbulence due to temperature variation on ...of atmospheric turbulence which results in blurring, shearing, wavering of images of objects in the ...to turbulence present in the air, ...
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Using an atmospheric turbulence model for the stochastic model of geodetic VLBI data analysis
... Electromagnetic waves originating from natural or arti- ficial sources, such as extragalactic radio sources or sat- ellites, pass through the atmosphere to an antenna on the Earth’s surface. These waves are affected by ...
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Spreading of Four-Petal Lorentz-Gauss Beams Propagating through Atmospheric Turbulence
... of atmospheric turbulence C n 2 on the evolution properties of FPLG beam, the cross lines of an FPLG beam propagating through atmospheric turbulence and free space for the different C n 2 are ...
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Analysis of phase coherence in fully developed atmospheric turbulence: Amazon forest canopy
... the atmospheric in- termittent turbulence, above and within the Amazon forest canopy, is generated by the phase coherence due to nonlinear wave-wave ...interactions. Turbulence consists of an admix- ...
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Performance of FSO Links for BPSK Modulated Signal with Atmospheric Turbulence and Pointing Error
... Namely, an optical wave propagating through the air experiences fluctuations in amplitude and phase due to atmospheric turbulence. The transmitter modulates data onto the instantaneous intensity of an ...
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Enhancement Of Atmospheric Turbulence Distorted Images Using Wavelet Packet Transform
... not aligned. It shows how WPT is used for the image enhancement and by comparing the values of standard deviation and spatial frequency it is understood that this method gives better results. Images of a moving car in a ...
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Evaluation of Free Space Optical Communication Link for Moderate Atmospheric Turbulence
... of atmospheric turbulence is stated to be of the order of milliseconds and this value is very large compared to the duration of a typical data symbol, thus the turbulent atmospheric channel could be ...
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Wander and Spreading of Gaussian-Schell Model Beams Propagating through Anisotropic Marine-Atmospheric Turbulence
... marine atmospheric turbulence is a subject of considerable importance in connection with free-space optical (FSO) communication between ship and ship/shore ...
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Comparison the Performance of Free-Space Optical Communication with OOK and BPSK Modulation under Atmospheric Turbulence
... Block diagram of Fig. 1 depicts the physical system under study. Fig. 1(a). shows the block diagram of OOK system and Fig. 1(b) represent the block diagram of subcarrier BPSK system. For both cases, the laser beam- ...
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Measurements of high-frequency Atmospheric Turbulence and its Impact on the Boundary Layer of Wind Turbine Blades
... offshore atmospheric turbulence, pressure fluctuations were measured for offshore wind under different environmental ...the atmospheric boundary has a large impact on turbulent ...aerodynamic ...
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On the Capacity of FSO Links over Gamma Gamma Atmospheric Turbulence Channels Using OOK Signaling
... gamma-gamma atmospheric turbulence channels with intensity modulation and direct detection is derived when on-off keying (OOK) formats are ...the turbulence strength and the signal-to-noise ratio ...
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Error Analysis in Free Space Optical Communication System over different Atmospheric Turbulence Channel
... strong atmospheric turbulence and Log Normal distribution for weak atmospheric turbulence ...the turbulence strength and signal-to-noise ratio, in comparison with the weak ...
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A Novel Method for Atmospheric Turbulence Reduction Using DD-DWT Based Image Fusion
... Atmospheric turbulence is obviously happening phenomenon that can brutally humiliate the visual quality of video signals during ...and turbulence due to temperature variations or ...such ...
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Free Space Optical Communication System at Different Atmospheric Turbulence for Diverse Temperature Conditions
... of atmospheric turbulence include, beam spreading, beam wander and beam ...turbulent atmospheric channel can be described as a „slow fading channel‟ since it is static over the duration of a data ...
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Influence of atmospheric turbulence on the propagation of quantum states of light using plane-wave encoding
... In summary, we have presented a calculation that quantifies the rate at which quantum in- formation encoded on the plane-wave states of individual photons is lost as a result of prop- agation through atmospheric ...
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Non-Kolmogorov atmospheric turbulence and optical signal propagation
... mospheric turbulence on electromagnetic waves propagation in the Earth’s atmosphere, we have mentioned some well- known experiments whose results remained unexplained within the framework of “standard” ...
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A Study on atmospheric turbulence with Shearing Interferometer wavefront sensor
... The best option to minimize the atmosphere effects is launch a telescope into space, but it has its own limitations of launching technology for big telescopes and cost of operation. In, speckle interferometry using blind ...
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Scintillation Index of a Gaussian Schell-Model Beam on Slant Atmospheric Turbulence
... slant atmospheric turbulence structure constant model, we present scintillation index calculations for a Gaussian Schell-model (GSM) beam under all irradiance fluctuation ...with atmospheric ...
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