Abstract:

In view of the compltcated propagation path of the ship seismic wave field and the undistionguishable superimposed path signals, a ship seismic wave field separation method is introduced based on oblique projection separation operators by constructing the polarization subspaces of the compressed wave and surface wave respectively, thus separating the signal directly. Compared with the conventional polarization methods, no transform and compensation is needed to realize the signal seperation. The simulation and experiment data results indicate that the proposed method effectively separates the ship seismic wave field.