Multiple suppression using prediction-error filter

A simple synthetic CMP gather

The synthetic CMP gather consists of a horizontal event which represents the primary and a curved event representing the multiple. After offset randomization, the CMP gather is shown in Figure 1. Figure 3 illustrates the result of PEF-based multiple suppression in 2-D case. In this simple example, although there are strong aliasing effects in the CMP gather, the 2-D prediction-error filter separates the horizontal and curved events very well.

syn-tx
Figure 3. A simple synthetic CMP gather composed of one primary event and one multiple event. This simple example demonstrates the applicability of the PEF based multiple suppression scheme.

Multiple suppression using prediction-error filter