Title

高精度廣義KL變換波場分離與去噪

Translated Titles

Wave Field Separation and de-noising Using Generalized High Precision KL Transform

Authors

劉保童(Bao-Tong Liu);朱光明(Guang-Ming Zhu)

Key Words

波場分離 ; 去噪 ; 相干噪聲 ; 奇異值分解 ; 靜態時移 ; KL變換 ; wave field separation ; de-noising ; coherent noise ; SVD ; static time shift ; KL transform

PublicationName

地球科學與環境學報

Volume or Term/Year and Month of Publication

27卷3期(2005 / 09 / 01)

Page #

59 - 62

Content Language

簡體中文

Chinese Abstract

KL濾波是地震數據處理中的重要方法技術之一。針對在實際中如何有效地應用好KL變換的問題,結合有效波同相軸高精度拾取和排齊技術,採用奇異值分解(SVD)算法實現KL變換,使KL濾波適用於任意彎曲同相軸的分離與消除。理論模型計算和實際資料處理試驗表明,使用該方法能有效地分離相干噪聲和隨機噪聲,提高地震記錄的信噪比,簡單實用,便於操作。

English Abstract

KL filtering is one of the important techniques in seismic data processing. Aimed at the issue how to make use of KL transform effectively in practice, this paper introduced the approach of high precision event picking and alignment, implemented KLT via SVD algorithm, which makes KL filtering fit for separation and removing of arbitrarily curving event. The results of synthetic seismograms and real data indicate that the method can separate coherent and random noise effectively, enhance signal-to-noise ratio of seismic section. It is simple and practical.

Topic Category 基礎與應用科學 > 地球科學與地質學