On the relation between seismic interferometry and the migration resolution function

In seismic interferometry the response to a virtual source is created from responses to sequential transient or simultaneous noise sources. Most methods use crosscorrela-tion, but recently seismic interferometry by multidimensional deconvolution (MDD) has been proposed as well. In the simultaneous-source method (also known as blended acquisition), overlapping responses to sources with small time delays are recorded. The crosstalk that occurs in imaging of simultaneous-source data can be reduced by using phase-encoded sources or simultaneous noise sources, by randomizing the time interval between the shots, or by inverting the blending operator. Seismic inter-ferometry and the simultaneous-source method are related. In this paper we make this relation explicit by deriving deblending as a form of seismic interferometry by MDD. Moreover, we discuss a deblending algorithm for blended data acquired at the surface.