Capacity of turbulent ocean Link with point error and carrier of Bessel-Gaussian localized vortex wave

摘要

Based on the power spectrum of the index fluctuation with the outer scale of seawater turbulence, we develop the channel capacity of oceanic turbulence links with carrier Bessel-Gaussian vortex localized wave. By this capacity model, we investigate the influences of seawater turbulence and carrier parameters on the channel capacity. The results show that higher rate of dissipation of kinetic energy per unit mass of fluid, larger inner scale, or lower dissipation rate of the mean-squared temperature causes the higher channel capacity; the Bessel-Gaussian localized vortex wave with broader initial half-pulse width has stronger resistance to oceanic turbulent perturbation. This work provides a theoretical basis for realizing high capacity oceanic optical communication with carrier Bessel-Gaussian vortex localized wave.