Research on multibeam bathymetric strategy based on sine theorem and equivalent slope angle

Abstract

Multibeam bathymetry is widely used in the fields of water body bathymetry and terrain survey, and the survey line laying scheme is of key significance to improve the measurement accuracy and enhance the measurement efficiency. Therefore, it is of practical significance to increase the research on the survey line laying scheme for different water bodies and different terrains. In this paper, we firstly establish a single-slope multibeam bathymetry coverage width and overlap rate model based on the sine theorem in the case of constant line direction, and solve a set of analytical solutions for seawater depth, coverage width and overlap rate; then we extend the study on the coverage width when the direction of the survey line is changed, and establish a multibeam coverage width model based on the equivalent slope; finally, the optimal line laying scheme is solved for a given rectangle area.