摘要
随掘地震超前探测噪声干扰严重,一般的去噪方法很难去除探测数据中直达波和信号混叠造成的干扰。针对该问题,本文提出了基于傅里叶变换的可逆τ-p变换的随掘地震超前探测去噪方法,通过建立随掘地震超前探测模型进行正演计算,采用该方法对正演地震记录进行τ-p域成像,并通过反变换得到去噪后的地震记录。研究表明,直达波与反射波在τ-p域上能够很好地区分,去噪后的地震记录波组特征明显,该方法对随掘地震超前探测资料具有很好的去噪效果。
引文
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