Incorporating the Source Array into Primary Estimation

In the surface-related multiple elimination (SRME) method the source array is assumed to act as a single stable source. When the behavior of the source array differs too much from this assumption it effects the primary estimation. We will demonstrate this with two cases; unstable sources and large source arrays. We will discuss which measures to take to incorporate the source array in SRME. On the same synthetic data examples we will demonstrate that it is very easy to bring in the source array into the recently introduced estimation of primaries by sparse inversion (EPSI) method. For the unstable source case EPSI can estimate the source wavelet that was used during each shot. For the case of large source arrays EPSI can estimate primary impulse responses from the data as if they came from a single point source acquisition, thus removing the blending effect from the source array.