Line Measurement of Multi-Beam Sounding System Based on Annealing Algorithm

For a group of parallel survey lines with sloping sea floor at a certain Angle to the horizontal plane, the total path of the route is different when the Angle projected by the normal direction of the slope changes. This paper studies the shortest path when the value of the Angle is taken. The possible interval of the shortest path is calculated by the set of all possible obtained Angle values through certain traversal calculation method, and then the trend of path change is analyzed by fitting calculation method, and the Angle value of the shortest path is analyzed by annealing algorithm. After several studies to eliminate errors, it is found that the path is shortest when the direction of the measured line is perpendicular to the normal projection.