Multi-source least-squares migration of marine data

Abstract
Kirchhoff based multi-source least-squares migration (MSLSM) is applied to marine streamer data. To suppress the crosstalk noise from the excitation of multiple sources, a dynamic encoding function (including both time-shifts and polarity changes) is applied to the receiver side traces. Results show that the MSLSM images are of better quality than the standard Kirchhoff migration and reverse time migration images; moreover, the migration artifacts are reduced and image resolution is significantly improved. The computational cost of MSLSM is about the same as conventional least-squares migration, but its IO cost is significantly decreased.

Citation
Wang, X., & Schuster, G. T. (2012). Multi-source least-squares migration of marine data. SEG Technical Program Expanded Abstracts 2012. doi:10.1190/segam2012-1092.1

Publisher
Society of Exploration Geophysicists

Journal
SEG Technical Program Expanded Abstracts 2012

Conference/Event Name
SEG Technical Program Expanded Abstracts 2012

DOI
10.1190/segam2012-1092.1

Additional Links
http://library.seg.org/doi/abs/10.1190/segam2012-1092.1

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