Phase-residual based quality-control methods and techniques for mitigating cycle skips

TitlePhase-residual based quality-control methods and techniques for mitigating cycle skips
Publication TypeSINBAD Presentation
AuthorsBrendan R. Smithyman, Felix J. Herrmann
PublisherSINBAD
Year of Publication2013
Abstract

Most full-waveform inversion algorithms use local optimization methods to iteratively improve the numerical earth model. All of these make the implicit assumption that the the model close to the true earth to avoid cycle. In practice this may not be true. We explore two questions: 1. How do we understand and visualize the cycle skip phenomenon in order to recognize it if it exists? 2. How do we automate this quality control step and use the rich information from multiple data to mitigate cycle skips and avoid local minima?

KeywordsPresentation, private, SINBAD, SINBADFALL2013, SLIM
URLhttps://www.slim.eos.ubc.ca/Publications/Private/Conferences/SINBAD/2013/Fall/smithyman2013SINBADprb/smithyman2013SINBADprb.pdf
Citation Keysmithyman2013SINBADprb