李星缘;王维红;王海娇;张文武;

• 1:东北石油大学地球科学学院

摘要(Abstract)：

为消除多次波预测中多余的子波效应,拓宽地震数据的频带,使预测多次波的走时、振幅和相位与实际的多次波相吻合,根据原始数据,衍生频率拓展道等多道地震数据;根据最小二乘原则,得到自适应滤波器和压制多次波后的有效波数据。结果表明:基于频率拓展的多次波压制方法,能够有效压制多次波,提高地震资料的信噪比;对水平层状模型测试结果频谱分析,自适应相减后得到的有效波同预测的多次波相比,频带拓宽,高频能量增强;通过对SMAART模型测试,基于频率拓展的多次波压制方法在噪声较强的情况下,也能得到很好的多次波压制效果。对于地质结构较复杂的情况,与抛物Radon变换滤波法相比,该方法多次波压制效果更好,并且不损害有效波能量。

关键词(KeyWords)：表面多次波;SRME;预测;自适应相减;频率拓展;压制

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(41574117,41474118);; 黑龙江省杰出青年科学基金项目(JC2016006);; 黑龙江省自然科学基金项目(D2015011);; 东北石油大学优秀科研人才培育基金(GLJHB201601)

作者(Author):李星缘;王维红;王海娇;张文武;

Email:

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