Well logging inversion was carried out using Levenberg-Marquardt (LM) and Singular Value Decomposition (SVD) techniques for the determination of petrophysical parameters, respectively. In this research, synthetic data contaminated with 5% Gaussian noise, field were used to compare results from two methods. MATLAB software has been developed solve overdetermined inverse problem. The estimated pa...

In this paper, we study convergence properties of the inexact Levenberg-Marquardt method under Hölderian local error bound condition and continuity Jacobian. The formula rates are given, which functions with respect to parameter, perturbation vector, as well orders

This work approaches the problem of estimating Kautz optimal poles in kernel expansion Wiener-Volterra models. The analytical solution for suboptimal case is already established literature. However, two parameters that compose still open. In this paper, an optimization strategy using Levenberg-Marquardt presented. algorithm used to find parameters, with same base all dimensions. construction ba...