High Resolution Time Delay Estimation Based on Third-Order Statistics Domain

A-20 HIGH RESOLUTION TIME DELAY ESTIMATION BASED ON THIRD-ORDER STATISTICS DOMAIN V.D. VRABIE and J.I. MARS Abstract 1 The seismic prospecting aim is to obtain structural and geological information. The time delay evaluation is an essential operation often necessary in the multidimensional signals treatments. Into seismic processing this operation is carried out in a systematic way before using the waves separation procedure and velocities evaluation. All these operations and especially the waves separation tools are very sensitive to a good waves alignment. Classical time delay estimation relying the cross-correlation (second order statistics) is often used. But in case of correlated