Abstract
A novel three-dimensional total-field scattered-field source finite-difference time-domain (TSS-FDTD) method is presented to analyze the propagation properties of low-frequency electromagnetic wave in underwater. The proposed method includes two-step FDTD calculations. The first calculation space is meshed with a fine cell size. The second is meshed with a coarse cell size. In addition, the ratio of a coarse cell size to a fine cell size is set to an arbitrary positive integer, such as $N=11$ in this letter. Numerical results prove the accuracy and validity of the proposed method. An analysis of the results shows that the run time spent in TSS-FDTD accounts for 0.35% of that in the conventional FDTD, and the consumed memory is 3.9% of that spent in the conventional FDTD.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.