The Application of Quaternion on Attitude Correction of Ocean Bottom Node

In multi-component seismic exploration projects that use ocean bottom nodes as recording instrument, the attitude correction of nodes is a crucial step. The process can be roughly described as recording the deviation angles of nodes in three mutually perpendicular directions (Pitch, Roll, Azimuth), and then apply this angle to the node data to complete the correction. The traditional correction method uses Euler Angle for data rotation, but this method has its own limitations in the algorithm and there is room for optimization of the operation efficiency. Based on the theoretical analysis of the traditional Euler Angle method, this essay introduces the feasibility of applying the quaternion method to the rotation of multi-component seismic data, and further compares the effects of these two methods in effect, algorithm efficiency and rotation accuracy, and finally summarizes the application prospect of the quaternion method in the future.