Vibroseis Deconvolution*

Vibroseis deconvolution can be performed either before or after correlation. As regards the deconvolution before correlation, the Vibroseis deconvolution operator can be described as convolution of a spike deconvolution operator with a minimum‐phase filter operator with bandpass properties. As regards the deconvolution after correlation, the deconvolution operator can be shown to be the convolution of three operators: spike deconvolution operator and two‐fold convolution with a minimum phase operator. Time‐varying Vibroseis deconvolution can particularly well be described and performed after correlation.