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地震台阵是为了监测核爆而发展起来的一种地震观测系统。近年来,地震台阵被推广到地球内部速度间断面的研究中并极大地推动了地震学的发展。本文主要介绍处理台阵资料的技术方法,如聚束、倾斜叠加、N次根叠加、频率波数法以及相位加权叠加等,并讨论各种方法的优缺点。在提取微弱但相关信号方面,重点讨论相位加权叠加方法及现有的研究成果。结果表明,这些方法都在不同程度上提高了记录的信噪比,高质量的台阵数据使得地球内部速度结构的成像研究更加精细。
Seismic array is an earthquake observation system developed to monitor nuclear explosion. In recent years, the seismic array has been popularized into the study of the inter-Earth velocity discontinuities and has greatly promoted the development of seismology. This paper mainly introduces the technical methods of processing array data, such as bunching, tilt stacking, N-th root stacking, frequency wavenumber method and phase weighted stacking, and discusses the advantages and disadvantages of various methods. In terms of extracting weak but relevant signals, we focus on the phase weighted stacking method and the existing research results. The results show that these methods all improve the recorded signal-to-noise ratio to some extent. High-quality array data make the imaging study of the velocity structure inside the earth more sophisticated.