Influence of Suspended Particles Based on Mie Theory on Underwater Laser Transmission

Yingluo, 张莹珞 Zhang; Yingmin, 王英民 Wang; Aiping, 黄爱萍 Huang

doi:10.3788/cjl201845.0505002

Cited by 8 publications

(3 citation statements)

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“… is the scattering angle cosine values, that is cos s    . Then the total energy of the beam at the transmitter after scattering by the scatterer is [19] ( ) / 4…”

Section:  mentioning

confidence: 99%

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“… is the scattering angle cosine values, that is cos s    . Then the total energy of the beam at the transmitter after scattering by the scatterer is [19] ( ) / 4…”

Section:  mentioning

confidence: 99%

“…( 5) into Eq. ( 6), we can calculate the energy received at the receiving end after effective scattering [19].…”

Section:  mentioning

confidence: 99%

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Laser forward and backward scattering characteristics and experimental study of bubbles in ship wake

Zong,

Chen,

Zhang

et al. 2024

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The detection and tracking of ships can be realized by using the laser forward and backward scattering characteristics of ship wake bubbles. In this paper, the detection ability of two kinds of scattering to wake bubbles is studied. Based on the distribution characteristics of ship wake and bubble targets, typical bubble targets are selected to study from both micro and macro aspects. The light scattering model of water is established from the microscopic aspect, and the forward and backward scattering light intensity equations of water are derived. The circumferential scattering characteristics of a single bubble are analyzed based on the Mie scattering theory. According to the transmission characteristics of light in wake bubbles, the secondary scattering model of wake bubbles is established, and the forward and backward scattering light intensity equations are derived. In the macroscopic aspect, the laser scattering simulation model of wake bubbles is established by Monte Carlo, and the forward and backward scattering characteristics of wake bubble clusters with different radii, densities, and thicknesses are analyzed emphatically. A laser forward scattering and backscattering detection system under typical bubble characteristics was built, and the composite scattering characteristics of wake bubbles with different parameter characteristics were experimentally analyzed. The theoretical and experimental results show that with the increase of bubble radius, density, and thickness, the amplitude of laser forward scattering signal of bubble groups decreases gradually, the amplitude of backward scattering signal increases gradually, the change rate of forward and backward scattering amplitude increases, and the change rate of backscattering is obviously larger than that of forward scattering. The detection of wake bubbles by backscattering has more characteristic changes than that by forward scattering, and the detection success rate is higher. The research results can provide theoretical and experimental support for the design of a ship wake laser detection system.

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Influence of Suspended Particles Based on Mie Theory on Underwater Laser Transmission

Cited by 8 publications

References 0 publications

FLANN-based inter-code crosstalk suppression study for underwater laser communication

FLANN-based inter-code crosstalk suppression study for underwater laser communication

Diffuse-LOS Optical Wireless Communication Across Wavy Water-Air-Interface Using UVA Light

Laser forward and backward scattering characteristics and experimental study of bubbles in ship wake

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