The Strategy of Joint Inversion Using Function Series

The paper presents the results of investigations on the choosing of the optimal number of coefficients (unknown) in the function inversion. Using synthetic noisy geoelectric data we show, that it can be find an optimum number of these coefficient using in the joint inversion. The method can be used also in case of field data the optimum of the coefficient’s number is at the minimum of the main model parameter estimation error and the relative data distance as a function of the number of expansion coefficients.