METHOD AND APPARATUS FOR CONTROLLING OUTPUT OF AN ARRAY OF SEISMIC SOURCES

摘要

Apparatus, computer instructions and method for controlling an energy output of a source array (300) to be used in a seismic survey for illuminating a subsurface. The method includes generating (600) a model (β) based on up-going (U) and down- going (D) components of seismic waves generated by source elements (300-i) that form the source array (300); calculating (602) the amplitudes and phases of each source element (300-i) based on the model (β); and driving (604) the source array (300) based on the calculated amplitudes and phases for the source elements (300- i) so that a ghost generated by the source array (300) is reduced at emission.