A Bathymetric Model of Sea Area Based on Multi-Objective Planning and Multiple Search Algorithms

This study is dedicated to exploring the importance of marine topographic surveys, with special attention to the application of multibeam bathymetry in marine surveys. Through the establishment of mathematical models and optimization algorithms, we study the changing rules of parameters such as seawater depth, coverage width and overlap rate, which provide new ideas for marine topographic surveys. Firstly, we established a mathematical model of multibeam bathymetry coverage width and overlap rate based on geometric knowledge and trigonometric theorem, which provides a specific scheme for sea area survey. Secondly, we proposed the optimal survey line layout scheme and determined the optimal number and length of survey lines by a single-objective planning model. Finally, we applied a multi-objective optimization model and Multi-Search algorithm to achieve effective marine topographic surveying and coverage optimization. These research results will provide important support for marine resource development and national security strategies.