利用小波分析模极大值和倾角结合法滤波

Filtering method combined modulus maximum of wavelet transform with obliquity

从小波变换的基本思想出发，提出一种提高地震资料信噪比及分辨率的新方法．首先按照 Mallat塔式算法在给定的某一倾角范围内对地震数据进行小波分解，然后应用模极大算法在小波域内将噪声抑制与滤除，最后通过小波反变换得到重构的地震记录．结果表明，该方法合理地解决了信噪比与分辨率之间的相互统一问题，较传统滤波方法更为有效．

Suppressing noise and enhancing useful seismic signal by filtering is one of the important tasks of seismic data processing. In this paper,filtering method combined modulus maximum method of wavelet transform with Obliquity is adopted to obtain high SNR and high－ distinguished seismic data,and the result is quite efective.