期刊
IEEE WIRELESS COMMUNICATIONS LETTERS
卷 4, 期 5, 页码 561-564出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LWC.2015.2459697
关键词
Radiative transfer equation; underwater optical path loss; finite-difference method; Gauss-Seidel iteration
资金
- Red Sea Research Center CCF grant from the Office of Sponsored Research at KAUST
In this letter, we propose a fast numerical solution for the steady state radiative transfer equation in order to calculate the optical path loss of light propagation suffering from attenuation due to the absorption and scattering in various water types. We apply an optimal non-uniform method to discretize the angular space and an upwind type finite-difference method to discretize the spatial space. A Gauss-Seidel iterative method is then applied to solve the fully discretized system of linear equations. Finally, we extend the resulting radiance in two-dimensional to three dimensional by the azimuthal symmetric assumption to compute the received optical power under the given receiver aperture and field of view. The accuracy and efficiency of the proposed scheme are validated by uniform RTE solver and Monte Carlo simulations.
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