A strategy for selecting the Laplace damping constants in the Laplace-domain inversion: Based on relationship between the Laplace damping constant and the detectable depth of a high- velocity structure

초록

We suggest a method for selecting damping constants in the Laplace-domain waveform inversion by analyzing the relationship between the damping constant and the detectable depth of a high-velocity structure. The result indicates that the Laplace damping constant and the detectable depth of a high-velocity structure are almost in inverse proportion to each otherand the relationship between the two variables is dependent on the maximum offset and subsurface velocity. Given the maximum offset and approximate underground velocitythe maximum value of the Laplace damping constant can be determined. The minimum value can also be selectedgiven the maximum recording time of a field data set. © 2010 Society of Exploration Geophysicists.