A phase shift plus interpolation algorithm for prestack time migration

Autor:	Jianhua Pan, Dan Negut
Rok vydání:	2008
Předmět:	Extrapolation Point (geometry) Prestack Algorithm Geology Image (mathematics) Interpolation
Zdroj:	SEG Technical Program Expanded Abstracts 2008.
DOI:	10.1190/1.3059362
Popis:	In this abstract we introduce a wavefield extrapolation based summation for prestack time migration (PSTM). Similar to Kirchhoff PSTM, this migration algorithm produces an image at any subsurface point by using single rms velocity value. The phase-shift plus interpolation (PSPI) calculates each single-trace-contribution and the summation of all single-trace-contributions generates the final image. This PSTM algorithm has not only most of the Kirchhoff PSTM advantages but also better handling of the true-amplitude and thus generates a high-quality image.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::922a51254208da45b60f3ef5323ab0b5 https://doi.org/10.1190/1.3059362 Zobrazit plný text záznamu