A METHOD OF PROCESSING DATA

摘要

The invention provides a method of processing data sequences obtained at substantially the same time at locations spatially separated from one another. A sequence indicative of a measure of spread of the data sequences or of selected data sequences is determined (step 12). A common signal data sequence may also be determined from the (selected) data sequences (step 12).The measure of spread of the data sequences is preferably normalised, for example relative to the absolute value of the common signal data sequence.The measure of spread is a measure of the noise to signal ratio in the initially-obtained data sequences. It may be used to control the parameters of other processing steps performed on the data sequences (steps 11, 13, 18). Alternatively or additionally, the measure of spread may be output (step 16), for example for monitoring by an observer.The method can be applied to the processing of seismic data obtained using a single sensor seismic data acquisition system.