Publication at Faculty of Mathematics and Physics |
2011
Abstract
Seismic slip inversion is studied by means of singular valuedecomposition (SVD), with emphasis on the role of singular vectors and regularization of the solution. Because the stable part of the slip inversion result is given in terms of a linear combination of the leading singular vectors ( representing directions in the model space most sensitive to data), the performance of the inversion depends simply on how well the real slip model can be expanded into these vectors.
The analysis is demonstrated using a synthetic model of a symmetric bilateral rupture with two asperities.