We explore the influence of absorption, anisotropy and unstable layered turbulence on the channel capacity of horizontal seawater link. By developing the spectrum average coherence length of collimated beam wave in the absorptive seawater turbulence, we propose a model of the channel capacity of links with carrier Bessel-Gaussian vortex localized wave. Our model shows that the capacity of links increases with the increasing of the half-modulated pulse width of the input pulse, the rate of dissipation of kinetic energy per unit mass of fluid and the anisotropic factor of turbulence, but it decreases with the increasing of the Bessel cone angle and the dissipation rate of the mean-squared temperature. We also find that there is a maximum effective beam waist for a given receiving aperture, the channel capacity is more sensitive to salinity fluctuations than to temperature fluctuations in turbulence, and the influences of the inner scale and outer scale of turbulence on channel capacity of links in anisotropic turbulence and isotropic turbulence are different.

我们探讨了吸收、各向异性和不稳定层状湍流对水平海水通道通道容量的影响。通过开发吸收性海水湍流中准直波束波的谱平均相干长度，我们提出了一个带有载波贝塞尔-高斯涡旋局域波链路通道容量的模型。我们的模型表明，链路容量随着输入脉冲的半调制脉冲宽度、单位质量流体的动能耗散率和湍流各向异性因子的增加而增加，但随着输入脉冲的增加而减小。贝塞尔锥角和均方温度的耗散率。我们还发现，对于给定的接收孔径，存在最大有效束腰，