A deblending strategy using alternating constant delay simultaneous source data

Simultaneous source (blended) acquisition in a land context has become an industry standard in some regions due to its ability to increase illumination and reduce acquisition costs (e.g. Howe et al., 2008). In the marine environment, the take-up of blended acquisition has been slower partly due to the lack of flexibility to modify the impulsive airgun source but also due to constraints on marine acquisition. Nevertheless, benefits for blended acquisition have been successfully demonstrated for towed streamer (Moore et al., 2012, Poole et al., 2013) and ocean bottom surveys (Davies et al., 2013). While higher fold datasets may be acquired in the same time, we are left with contamination noise from one source on the recording of the other, commonly known as cross-talk noise. One common strategy is to remove this noise before processing.