零相位同态反褶积

Zero-phase homomorphic deconvolution

同态反褶积是一种利用复赛谱技术提取子波和进行子波反褶积的方法，它要求在频率域将子波相位正确地展开计算。在实际中做到这一点是十分困难的，为此本文提出零相位同态反褶积方法。在无井条件下，对于一般批量处理来说，提高数据的分辨率要比获得精确相位更为重要．在求取零相位子波时，除采用原有同态技术外，还采用了分形理论和自组织神经元方法进行聚类、提取子波，并获得了满意的结果。

Homomorphic deconvolution method is used to abstract wavelet by cepstrum then to do wavelet deconvolution. It needs expansionary cornputation of wavelet phase in frequency domain,which is very difficult in practice. Zero-phase homomor-phic deconvolution is then advanced to cope with the problem. ln batch processing of seismic data from borehole-free area,high resolution of seismic data is more im-portant than accurate phase. In abstracting zero phase wavelets,besides homomor-phic technique, fractal theory and self-organ1zed neurone method can be used inclustering to abstract wavelets,with satisfactory result obtained thereby.