循环中值滤波在消除可控震源地震资料噪声中的应用

中值滤波是地震资料去噪处理中的常用工具,由于其对去噪资料有较严格的要求,使去噪效果不甚理想。可控震源地震资料正好满足中值滤波的应用前提,但又存在道数少,边界效应所占比例大的缺陷。根据可控震源资料的特点,提出了将去噪记录横向首尾相连,然后进行中值滤波,以克服边界效应的循环中值滤波方法。理论模型测试和实际可控震源资料处理证明了这种方法的可行性。

Application of Circulating Median Filtering in Eliminating Vibroseis Information Noise

Although mid-value filtering is often used to eliminate seismic information noise,it does not have good effect on noise elimination because of its high requirements for noise-eliminated information.Vibroseis information just meets the premise of applying median filtering.However,it has fewer traces and larger proportion of boundary effect.According to the characteristics of vibroseis information,the authors propose circulating median filtering approach that noise-eliminated records are both connected horizo...