A new least-squares deconvolution method for unknown finite length mixed-phase pulse

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Oil Geophysical Prospecting; (China)

OSTI ID:5338345

Xiaojing, H; Hongbin, C

Conventional least-squares deconvolution technique is valid only when the conditions of both minimum-phase wavelet and a white reflectivity series are satisfied; but it is invalid in the case of unknown mixed-pulse. A new least-squares deconvolution method suitable for unknown finite duration mixed-phase pulse is proposed here. The predicted duration of a mixed-phase wavelet must be offered before the method is used. The test of synthetic data show that this method brings good result and is insensitive to the predicted wavelet duration. It is also proved that the least-squares deconvolution method for unknown mixed-phase pulse is equivalent to gapped smoothing error filtering, which can be decomposed into a forward multi-step prediction error filtering and a backward multi-step prediction error filtering.

• OSTI ID: 5338345
• Journal Information: Oil Geophysical Prospecting; (China), Journal Name: Oil Geophysical Prospecting; (China) Vol. 24:5; ISSN SDWKE
• Country of Publication: United States
• Language: English

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