公开(公告)号：US10451756B2

公开(公告)日：2019-10-22

申请号：US15715973

申请日：2017-09-26

Applicant: Korea Institute Of Geoscience And Mineral Resources

Inventor： Woohyun Son ,  Sukjoon Pyun ,  Ho-Young Lee ,  Nam-Hyung Koo ,  Changsoo Shin

IPC: G01V1/30 ,  G06F17/50

Abstract: The present invention relates generally to an apparatus and method for calculating efficient 3-dimensional (3D) traveltime by using coarse-grid mesh for a shallow depth source. More particularly, the present invention relates to an efficient 3D traveltime calculation method for a shallow depth source by combining a suppressed wave equation estimation of traveltime (SWEET) algorithm and an equivalent source distribution (ESD) algorithm, wherein the SWEET algorithm is a traveltime calculation algorithm using an damped wave equation and the ESD algorithm is for equivalently distributed sources; and to an apparatus and method for calculating efficient 3D traveltime by using coarse-grid mesh for a shallow depth source which may need less calculation time compared with that of a conventional SWEET algorithm.

公开(公告)号：US20180246240A1

公开(公告)日：2018-08-30

申请号：US15715973

申请日：2017-09-26

Applicant: Korea Institute Of Geoscience And Mineral Resources

Inventor： Woohyun Son ,  Sukjoon Pyun ,  Ho-Young Lee ,  Nam-Hyung Koo ,  Changsoo Shin

IPC: G01V1/30 ,  G01V1/50 ,  G06F17/16

Abstract: The present invention relates generally to an apparatus and method for calculating efficient 3-dimensional (3D) traveltime by using coarse-grid mesh for a shallow depth source. More particularly, the present invention relates to an efficient 3D traveltime calculation method for a shallow depth source by combining a suppressed wave equation estimation of traveltime (SWEET) algorithm and an equivalent source distribution (ESD) algorithm, wherein the SWEET algorithm is a traveltime calculation algorithm using an damped wave equation and the ESD algorithm is for equivalently distributed sources; and to an apparatus and method for calculating efficient 3D traveltime by using coarse-grid mesh for a shallow depth source which may need less calculation time compared with that of a conventional SWEET algorithm.