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提出了一种简单有效的频率波数(f-k)域随机噪音衰减方法并将其用于某陆上地震数据集。该方法在f-k域一个小的时空窗口逐一自动提取能量最强、最相干的地震同相轴。当满足了避免在f-k域拾取随机噪声能量的某个给定条件时,拾取过程终止。在某陆上有噪声地震数据集的应用结果表明,该方法在去噪方面十分有效。
A simple and effective method of random noise attenuation in frequency wavenumber (f-k) domain is proposed and applied to some onshore seismic data sets. This method automatically extracts the most energetic and coherent earthquake events one by one in a small space-time window in the f-k domain. The pick-up process is terminated when a given condition that avoids picking up random noise energy at the f-k domain is satisfied. The application results of a noise seismic data set on a certain land show that this method is very effective in denoising.