| http://www.w3.org/ns/prov#value | - ality of initiations of a seismic source with inverse power weighting exponents selected from the group including 0, 1, 2, and 4; and (ii) instructions for stacking weighted seismic-trace signals; (b) means in the recorder responsive to transmitted coded signals for selecting processing instructions from the plurality of processing instructions stored in the memory means; and (c) means in the reco
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