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  4. Vol 6, Issue 5, 2023

Multibeam bathymetry optimization problem based on geometric modeling and simulated annealing

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DOI: 10.23977/jeeem.2023.060515 | Downloads: 5 | Views: 251

Author(s)

Wenjing Shi 1, Chong Xie 2, Zhi Huang 3

Affiliation(s)

1 College of Water Resource & Hydropower, Sichuan University, Chengdu, 610065, China
2 School of Cyber Science and Engineering, Sichuan University, Chengdu, 610065, China
3 School of Electrical Engineering, Sichuan University, Chengdu, 610065, China

Corresponding Author

Wenjing Shi

ABSTRACT

Echo sounding is a technique commonly used in marine bathymetry to measure the depth and topography of water bodies. This paper combs the development process of echo sounding technology, briefly describes the principle of multibeam bathymetry, and its application in ocean bathymetry and water conservancy engineering. In order to get the optimized scheme of the survey line in the rectangular sea area, this paper firstly draws a spatial 3D scatter plot using the attached data to observe the general shape of the seabed surface. Then, polynomial fitting is utilized to fit the surface to all points to obtain the surface equation. From the scatter plot, it can be seen that the seafloor slope is relatively gentle, and if the formula for the coverage width when the seafloor slope is horizontal can be used for calculation, the model will be greatly simplified. The programming in this paper verifies the reasonableness of the conjecture, so the simplified formula can be used for subsequent calculations. In order to determine the number of survey lines, a simulated annealing algorithm was used, and finally, we designed 31 parallel survey lines in the north-south direction, with a total length of 155 nautical miles, and the omitted sea area accounted for 1.71% of the total area to be surveyed, and in the overlapping area, the overlap rate of the part of the overlap rate of more than 20% had a total length of zero.

KEYWORDS

Geometric Derivation, Monte Carlo Simulation, Nonlinear Programming, Water Exploration Techniques

CITE THIS PAPER

Wenjing Shi, Chong Xie, Zhi Huang, Multibeam bathymetry optimization problem based on geometric modeling and simulated annealing. Journal of Electrotechnology, Electrical Engineering and Management (2023) Vol. 6: 115-124. DOI: http://dx.doi.org/10.23977/jeeem.2023.060515.

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