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ELASTIC WAVE VISUALIZATION SYSTEM USING REVERSE TIME STRUCTURAL MIGRATION ALGORITHM GENERATING A REAL UNDERGROUND IMAGE FROM MODELING PARAMETERS CALCULATED THROUGH REVERSE CALCULATION OF WAVE AND ET CETERA
ELASTIC WAVE VISUALIZATION SYSTEM USING REVERSE TIME STRUCTURAL MIGRATION ALGORITHM GENERATING A REAL UNDERGROUND IMAGE FROM MODELING PARAMETERS CALCULATED THROUGH REVERSE CALCULATION OF WAVE AND ET CETERA
PURPOSE: An elastic wave visualization system is provided to improve the sensitivity for inaccurate noise or noise such as null data.;CONSTITUTION: An elastic wave visualization system includes a log backward propagation unit (200), a virtual transmission source calculation unit (100) and a first convolution unit (300). The log backward propagation unit backwardly propagates a ratio between measured wave field logarithm-transformed in the frequency domain and modeling wave field. The virtual transmission source calculation unit calculates a virtual transmission source from the transmission source. The first convolution unit performs convolution of the measured data backwardly propagated in the log backward propagation unit with the virtual transmission source calculated in the virtual transmission source calculation unit.;COPYRIGHT KIPO 2013;[Reference numerals] (100) Virtual transmission source calculation unit; (200) Log backward propagation unit; (300) First convolution unit; (400) Filtering unit; (500) Normalization backward propagation unit; (600) Second convolution unit
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