Abstract：Homomorphic deconvolution method is used to abstract wavelet by cepstrum then to do wavelet deconvolution.It needs expansionary computation of wavelet phase in frequency domain,which is very difficult in practice.Zero-phase homomorphic deconvolution is then advanced to cope with the problem.In batch processing of seismic data from borehole-free area,high resolution of seismic data is more important than accurate phase.In abstracting zero-phase avelets,besides homomorphic technique,fractal theory and self-organized neurone method can be used in clustering to abstract wavelets,with satisfactory result obtained thereby.
