Prestack reversetimemigration requires computing the first breaks time of imaging points.
叠前逆时偏移需要计算成像点的初至时间。
2
As a crucial part of high-resolution waveform inversion and reversetimemigration, seismic modeling demands a high efficiency of computation.
作为高精度波形反演或逆时偏移的重要组成部分，地震波数值模拟对计算速度和效率提出了更高要求。
3
Reversetimemigration (RTM) is more applicable for the imaging of complex structures than one-way wave-equation migration and Kirchhoff integral migration.