Groundroll prediction by interferometry and separation by curvelet‐domain matched filtering

Abstract

SUMMARYThe removal of groundroll in land based seismic data is a critical step for seismic imaging. In this paper, we introduce a work flow to predict the groundroll by interferometry and then separate the groundroll in the curvelet domain. Thus workflow is similar to the workflow of surface-related multiple elimination (SRME). By exploiting the adaptability and sparsity of curvelets, we are able to significantly improve the separation of groundroll in comparison to results yielded by frequencydomain adaptive subtraction methods. We provide synthetic data example to illustrate our claim.