Dix inversion constrained by L1-norm optimization |

To accurately invert for velocity in a model with a blocky
interval velocity inversion using Dix
inversion, we set up our optimization objective function using
criterion. In this study, we analyze and test an improved version of
the Iterative Reweighted Least Squares (IRLS) solver, a hybrid
solver and a conjugate direction solver. We use a 1-D
synthetic velocity data set and a 1-D field RMS velocity data
set as test cases. The results of the inversion are promising for
applications on realistic geophysical problems.

- Introduction
- Dix inversion as an -optimization problem
- Dix inversion by IRLS method
- Dix inversion by an hybrid method
- Dix inversion by conjugate direction method
- Synthetic and field data example
- Conclusions and Discussions
- Acknowledgments
- Bibliography
- About this document ...

2009-10-19