稳定有效的反Q滤波方法
王珊1 ,于承业2 ,王云专1 ,刘颖超1
1.大庆石油学院,黑龙江 大庆 163318;2.大庆油田有限责任公司 勘探开发研究院,黑龙江 大庆 163712
RESEARCHES ON STABILIZED AND EFFECTIVE INVERSE Q FILTERING
WANG Shan 1 ,YU Chengye 2 ,WANG Yunzhuan 1 ,LIU Yingchao 1
1.Daqing Petroleum Institute, Daqing 163318,China;2.Exploration and Development Research Institute of Daqing Oilfield Company
Limited,Daqing 163712,China
摘要 反Q滤波是补偿大地吸收衰减有效方法之一,其稳定性和有效性是反Q滤波的前提条件。笔者研究了一种稳定的反Q滤波方法,并通过理论模
型和实际数据与传统的增益限制反Q滤波方法进行了对比。结果表明:稳定反Q滤波更好地恢复了衰减的地震信号,并自动限制了对噪声的过渡放大
。同时,还分析了噪声和增益限制因子Glim对稳定反Q滤波的影响。
Abstract :The inverse Q filtering is one of the most effective method for tackling the earth attenuation. Stability and
efficiency are two problems of general concern in inverse Q filtering. In this paper, a stabilized inverse Q filtering was
implemented and compared with the conventional gain-limited inverse Q filtering by theoretical model and actual seismic data. The
results show that the stabilized inverse Q filtering can recover effectively the attenuation of the seismic data and restrict
intelligently the attempt to amplify the ambient noise. At the same time, the effects of noise level and specified gain limit
Glim on the stabilized inverse Q filtering are also analyzed in this paper.
收稿日期: 2009-06-01
出版日期: 2009-12-10
通讯作者:
王珊(1984-),女,汉族,河北省衡水人,2007年7月毕业于大庆石油学院,获学士学位,大庆石油学院在读研究生,主要从事地震资料处理方法研究,公开发表学术论文数篇。
引用本文:
王珊, 于承业, 王云专, 刘颖超. 稳定有效的反Q滤波方法[J]. 物探与化探, 2009, 33(6): 696-699.
WANG Shan, YU Cheng-Ye, WANG Yun-Zhuan, LIU Ying-Chao. RESEARCHES ON STABILIZED AND EFFECTIVE INVERSE Q FILTERING. Geophysical and Geochemical Exploration, 2009, 33(6): 696-699.
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