An approach to extract the parameters of source-heave dynamics for marine seismic applications

An important preprocessing step in shallow marine seismic data analysis involves compensation for an inherent source heave component. The Kalman filtering approach requires a model for the heave process. Identifying optimum model parameters is the subject of this paper. The problem formulation based on the available frequency spectrum record of the heave process is discussed. The problem reduces to solving a set of nonlinear equations. The Newton-Raphson method is applied to actual field data to obtain the optimal model parameters.