Layout Strategy Analysis Based on MBES Survey Line Optimization Algorithm

In this paper, a multibeam bathymetric survey line optimization algorithm based on the calculus idea is constructed, aiming at optimizing the survey line deployment and ensuring the shortest total length of the survey line in the case of full coverage. In the study, a mathematical model, similar triangle principle and multi-objective optimization model are comprehensively applied, and in-depth analyses are carried out for factors such as seabed slope and line direction angle. First, mathematical models of coverage width and overlap rate in the presence of seabed slope were established. Secondly, a new model is constructed to further optimize the survey line placement scheme for the coverage width under different survey line directions. Finally, using the calculus method and the principle of similar triangles, a set of survey lines are designed to meet the specific overlap rate and measurement length requirements. Through the research, this paper not only improves the measurement efficiency of the multibeam bathymetric system, but also provides scientific and reasonable theoretical support for oceanographic surveying.