Optimum suppression of coherent signals with linear moveout in seismic data

This paper presents a new technique for suppression of coherent signals with linear moveout in seismic data. This technique is implemented in two schemes which take an array of traces as input and produce either one single trace or another array of traces as output. Two seismic applications are discussed in detail. The first is in the area of separation of upward and downward travelling signals in vertical array seismology, and the second is concerned with the attenuation of ground roll in conventional land data and cable noise in marine data, respectively. In each case, an example of real seismic data is presented to illustrate the effectiveness of this technique.