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To identify weak primaries in the presence of strong multiples is a challenge in conventional velocity spectra. Selective-correlation,an approach that can enhance the resolving of velocity analysis,is introduced, and extended to anisotropic media. Noting that the peaks of primaries submerged along the flank of the coherence peak of a strong multiples can be clearly identified in conventional spectrum comparing the velocity spectra obtained by this two approaches on synthetic data ,we conclued that selective-correlation keeps a higher resolution than conventional velocity analysis does. This process not only maintained the advantage of conventional velocity analysis, but also improveed manipulation. It matches the conventional velocity analysis on computational expense. 相似文献
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