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Design of Near-orthogonal Air-gun Sequences for Marine Seismic Source Encoding
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 78th EAGE Conference and Exhibition 2016, May 2016, Volume 2016, p.1 - 5
Abstract
Summary
We present a method to design near-orthogonal air-gun firing sequences for applications that exploit sequence orthogonality. We demonstrate that using a simulated annealing approach, we can optimize the autocorrelation and crosscorrelation properties of two sequences. Using a standard air-gun array we show the design of a pair of optimized air-gun firing sequences. The designed sequences are close to orthogonal to each other and provide a significant benefit for simultaneous source separation based on sequence encoding. This new method enables designing tailor-made air-gun firing sequences for multipurpose applications and can easily be extended to include additional design criteria.
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