Non-linear optimization for seismic traveltime tomography

摘要: This paper presents a non-linear algorithmic approach for seismic traveltime. It is based on large-scale optimization using least-squares and trust-region methods. These methods provide natural way to stabilize algorithms Newton's iteration minimization. They also correspond an alternative (and often more efficient) view of the Levenberg-Marquardt method. Numerical experience synthetic data real borehole-to-borehole problems are presented. In particular, results produced by new algorithm compared with those Ivansson (1985) Kra˙kema˙la experiment