1887

Abstract

Surface waves on a multi-channel record are converted directly into images of multimode<br>dispersion curves through a simple wavefield transformation method. Pre-existing multichannel<br>processing methods require preparation of a shot gather with exceptionally large number<br>of traces that cover wide range of source-to-receiver offsets for a reliable separation of different<br>modes. The method described here constructs high-resolution images of dispersion curves with<br>relatively small number of traces. This method is best suited for near-surface engineering<br>project where surface coverage of a shot gather is often limited to near-source locations and<br>higher-mode surface waves can be often generated with significant amount of energy.<br>Performance of the method is illustrated through tests using both real and synthetic data.

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/content/papers/10.3997/2214-4609-pdb.202.1999_013
1999-03-14
2021-10-16
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609-pdb.202.1999_013
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