接收台阵、震源阵的传递函数与双聚束法的初步研究

根据汶川地震序列,选出距离合适、波形相关性较好的事件作为震源阵,联合永久台阵(那曲、和田台阵),进行震源阵与固定台阵组合研究,计算其台阵响应.结果表明,地震序列可以形成震源阵,按照地震台阵的特殊方法进行研究,可以提高信噪比,为揭示地下精细结构提供条件.

The preliminary research about the transfer functions for receiver arrays, source arrays and the double-beam configurations

According to the earthquake sequence after Wenchuan earthquake occurred on May 12, in 2008, we chose several groups of earthquakes as source arrays by the correlation character of the events. Naqu seismic array in Xizang Autonomous Region and Hetian seismic array in Xinjiang Uygur Autonomous Region were the receiver seismic arrays to be chosen. The array response functions were calculated for both receiver arrays and source arrays, and the transfer function equivalents for the double-beam configurations were also calculated. The results show that wenchuan earthquake sequence could form source arrays and these cheap arrays could be researched by the using of special array seismology methods. The transfer function equivalents for the double-beam configurations have higher resolutions in slowness field than the receiver arrays, which indicate the capability to disclose the smaller structure of the interior of the earth.