한국지구물리탐사학회:학술대회논문집
- 한국지구물리탐사학회 2003년도 Proceedings of the international symposium on the fusion technology
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- Pages.459-463
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- 2003
Phase inversion of seismic data
- Kim, Won-Sik (Korea Institute of Geoscience and Mineral Resources) ;
- Shin, Chang-Soo (Seoul National University) ;
- Park, Kun-Pil (Korea Institute of Geoscience and Mineral Resources)
- 발행 : 2003.11.01
초록
Waveform inversion requires extracting a reliable low frequency content of seismic data for estimating of the low wave number velocity model. The low frequency content of the seismic data is usually discarded or neglected because of the band-limited response of the source and the receivers. In this study, however small the spectral of the low frequency seismic data is, we assume that it is possible to extract a reliable phase information of the low frequency from the seismic data and use it in waveform inversion. To this end, we exploit the frequency domain finite element modeling and source-receiver reciprocity to calculate the
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