Apparatus for generating seismic signals having distinguishing signatures
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United States of America Patent
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Jun 11, 2013
Grant Date -
Jun 17, 2010
app pub date -
Dec 23, 2009
filing date -
Sep 17, 2007
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Abstract
A seismic system has a plurality of seismic sources. Each of the seismic sources includes a reaction mass movable with respect to a geological structure and includes an actuator moving the reaction mass. The movement of the reaction mass emits a source signal as seismic energy into the geological structure. In the system, each of the source signals is generated from a base vibratory signal segmented into a plurality of segments, where the base vibratory signal sweeps from an initial frequency to a final frequency. Each of the segments has a partition of sweep frequencies different from the other segments. Each of the source signals has a distinguishing arrangement of the segments different from the other source signals.
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