Abstract:In order to counter the limitation of f-x domain prediction and the complicacy of subsurface geological structure, we suggest a joint use of f-x domain prediction and two-dimensional filtering to minimize the distortion of reflection signals. In view of the fact that prediction technique in f-x domain doesn't well remove random noise, and in light of signal predictability and noise unpredictability, we use the modulo of S/N ratio to make the self-adaptive weight of the predicted data so as to make f-x domain prediction technique remove randon noise better. It has been seen theoretically and practically that the above measures obviously improve the f-x domain prediction technique.