Abstract
In seismic interferometry the response of a virtual source is created from responses of sequential transient or simultaneous noise sources. In the simultaneous-source method (also known as blended acquisition), overlapping responses of sources with small time delays are recorded. Clearly seismic interferometry and the simultaneous-source method are related. We make this relation explicit by deriving deblending as a form of seismic interferometry by MDD. The discussed representation for the simultaneous-source method has two interesting limiting cases. When each source group consists of a single source, then we obtain the original expressions for interferometry with sequential transient sources. On the other hand, when there is only one source group containing all sources and when the source wavelets are replaced by mutually uncorrelated noise signals, then we obtain the expressions for interferometry with simultaneous noise sources.
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