ABSTRACT The scintillation index and bit error rate (BER) of a Gaussian beam propagating in a weakly turbulent soft tissue are formulated and analysed numerically. The scintillation indices are plotted against half of the measured slope in the range of power-law scaling at different tissue parameters, such as the random variations in the refractive index of the tissue, outer scale of the tissue turbulence and the tissue length between the optical source and the detector. Moreover, BERs of Gaussian beams against the signal to noise ratio (SNR) are examined for different tissue parameters. Our graphical results show that the scintillation index and BER increase with larger outer scales, longer tissue lengths and larger random variations in the refractive index of the tissue. In comparison with the spherical wave propagation, it was found that Gaussian beam yields larger scintillation index and BER values.

中文翻译：

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高斯光束在生物组织中传播的误码率

摘要 对在弱湍流软组织中传播的高斯光束的闪烁指数和误码率 (BER) 进行了公式化和数值分析。闪烁指数在不同组织参数的幂律标度范围内相对于测量斜率的一半绘制，例如组织折射率的随机变化、组织湍流的外部标度和光学之间的组织长度。源和探测器。此外，针对不同的组织参数检查高斯光束的 BER 与信噪比 (SNR) 的关系。我们的图形结果表明，闪烁指数和 BER 会随着更大的外部尺度、更长的组织长度和更大的组织折射率随机变化而增加。与球面波传播相比，