Bilgisayar Mühendisliği(İngilizce): Recent submissions

Now showing items 41-48 of 48

Adaptive optics compensation of M-ary pulse position modulated communication systems in anisotropic non-Kolmogorov turbulent atmosphere

Ata, Yalcin (2021-12-15)

Adaptive optics compensation effect on the performance of an optical wireless communication system (OWC) employing M-ary pulse position modulation (PPM) scheme in anisotropic non-Kolmogorov turbulent atmosphere is investigated. ...
Signal-to-noise ratio with adaptive optics compensation in non-Kolmogorov weak turbulent atmosphere

Ata, Yalcin (2021-07)

This study investigates the average signal-to-noise ratio < SNR > at the shot-noise limited receiver of an optical wireless communication system (OWC) that uses collimated Gaussian beam with adaptive optics correction in ...
BER performance ofM-ary pulse position modulated communication systems in anisotropic non-Kolmogorov turbulent atmosphere

Ata, Yalçın (WAVES IN RANDOM AND COMPLEX MEDIA, 2020-08)

We investigated the effect of anisotropic non-Kolmogorov atmospheric turbulence on the performance of the optical wireless systems whenM-ary Pulse Position Modulation (PPM) is applied to a Gaussian beam. The performance ...
Adaptive optics effect on performance of BPSK-SIM oceanic optical wireless communication systems with aperture averaging in weak turbulence

Ata, Yalçın (2020-11)

Turbulence-induced wavefront deformations cause the irradiance of an optical signal to fluctuate resulting a in serious degradation in the bit-error-rate (BER) performance of optical wireless communication (OWC) system. ...
BER variation of an optical wireless communication system in underwater turbulent medium with any temperature and salinity concentration

Ata, Yalçın (2021-04-15)

The effect of natural turbulence on an underwater wireless optical communication (UWOC) link using the on-off-key (OOK) modulation scheme and a coherent plane wave is analyzed in terms of the signal-to-noise ratio (SNR) ...
Adaptive optics correction in natural turbulent waters

Ata, Yalçın (2021-04)

The recently introduced power spectrum of the refractive index fluctuations of the natural oceanic water turbulence is applied to an underwater communication system in the presence of adaptive optics corrections. The effects ...
Electromagnetic Hanbury Brown and Twiss Effect in Atmospheric Turbulence

Ata, Yalçın (2021-06)

The evolution of the 4 x 4 matrix with elements being the scintillation indices of the single-point Stokes parameters of a stationary electromagnetic beam-like optical field in classic, weak atmospheric turbulence is ...
Wave and phase structure functions of plane and spherical waves in particle-free natural turbulent waters

Ata, Yalçın (ELSEVIER, 2021-10-15)

The expressions for the wave and the phase structure functions of a plane wave and a spherical wave propagating in the natural water turbulence characterized by the recently developed spatial power spectrum (Yao et al., ...

Now showing items 41-48 of 48

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