The Accuracy of Linearized Elastic Parameters Estimation

Elastic parameters can be found from amplitude versus offilet (AVO) curves. A fourth-order polynomial can be fitted to the AVO-curve and estimated by a least squares technique. The polynomial coefficients are linearly related to a set of elastic constants. In this paper the statistical properties of the estimated polynomial coefficients and elastic model parameters are investigated. An eigenanalysis is also performed of the normalized covariance matrices.