Seismic Attenuation Estimation From Instantaneous Frequency

被引：15
|
作者：
Yang, Senlin [1 ]
Gao, Jinghuai [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect & Informat Engn, Inst Waves & Informat, Xian 710049, Peoples R China
来源：
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS | 2010年 / 7卷 / 01期
关键词：
Attenuation; instantaneous frequency (IF); quality (Q) factor; SIGNAL;
D O I：
10.1109/LGRS.2009.2028302
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
An approach is proposed for quality (Q) factor estimation from the variation of envelope peak instantaneous frequency (EPIF). For a frequency-independent Q model, assuming that the propagating wavelet can be modeled by a Gaussian function with constant phase, an approximate analytic relation between Q and EPIF variation is derived. Synthetic tests show that the EPIF method has higher resolution and is less sensitive to noise and interference reflection than common methods. The field test of reflection seismic data indicates that the zone of lower Q-factors corresponds well to the gas reservoir.
引用
收藏
页码：113 / 117
页数：5
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