Cole-Cole model parameters are widely used to inter- pret electrical geophysical methods and are obtained by inverting the induced polarization (IP) spectrum. This paper presents a direct inversion method for parameter estimation based on multifold least-squares estimation. Two Algorithms are described that provide optimal pa- Rameter estimation in the least-squares sense. Simula- Tions demonstrate that both algorithms can provide di- Rect apparent spectral parameter inversion for complex Resistivity data. Moreover, the second algorithm is robust Under reasonably high noise.
展开▼
