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oa Decomposition of a Mixed-Phase Causal Signal
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 4th International Congress of the Brazilian Geophysical Society, Aug 1995, cp-313-00106
Abstract
A new algorithm for the decomposition of a mixed-phase signal into its minimum-phase and maximum-phase componentes is described. It is only valid for signals whose transform has no zeros on the unit circle. The method is based on solving a number of extended Yule-Walker equations to estimate the number of zeros inside the unit circle. A numerical example is shown to demonstrate the effectiveness of the method. It is also shown that a mixed-phase inverse filter based on the signal decomposition performs much better than minimum-phase deconvolution.