Dithered Slip-Sweep Acquisition

This paper describes a high-productivity vibroseis acquisition and separation method termed dithered slip-sweep acquisition. It combines two techniques, slip-sweep and dithered acquisition, that have been previously, but individually, used in land vibroseis and marine acquisition, respectively. The constraints on the start time of the sweeps keep the interference noise under control such that the separation algorithms can attenuate the interference more effectively than when the vibrators sweep without synchronizing their activities. An example of dithered slip-sweep acquisition generated from a conventional dataset demonstrates the method.