Recognizing and Suppressing Ground Roll Wave with Average Energy Method

Abstract

Abstract: Ground roll wave has characteristics of strong energy, low frequency and slow attenuation.In the low band of wavelet transform,energy of ground roll wave is normally greater than the average energy in overall band of seismic reflection event, which is regarded as the discrimination criterion for it.Through definition range of the window and the suppressing threshold, the damage of seismic reflection signals with low frequency can be avoided.By using narrow band and equal distance wavelet transform and average energy method, the ground roll wave can be recognized and suppressed better, hence obtaining good results.

Key words: average, energy, frequency, recognition, disturbing wave

CLC Number:

P631.44

WANG Zai-min, LI Li, ZHU Peng-fei, ZHANG Zhong-hu, GUO Hong-xian, JIANG Li. Recognizing and Suppressing Ground Roll Wave with Average Energy Method[J]. Xinjiang Petroleum Geology, 2005, 26(6): 653-655.

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Recognizing and Suppressing Ground Roll Wave with Average Energy Method

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