地震信号内插与噪音剔除（二）

本文是文献1]的续篇。前文已介绍一维情况下的信号内插的最佳内插算子,提出了一种可以在空间域较彻底地剔除干扰波的检噪算子。本文将其推广到二维情况,讨论二维F-K域中的信号内插及噪音剔除技术。二维噪音剔除可以在信噪比很低的记录上分离出信号来。通过试验说明,噪音剔除比常规的二维滤波好。

SEISMIC SIGNAL INTERPOLATION AND NOISE DELETION （Ⅱ）

In the Last issue, paper part I, some low-pass optimum filters have been designed in order to perform trace interpolation with minimum error. In part II, the author extends this method to two-dimensional case. 2-D noise deletion gives better result, better than conventional FK filtering. Conventional filtering distributes merely a noise energy to surrounding samples according to the operator's weights. But Noise Deletion (ND) cancels the noise energy more thoroughly.