上海地震台阵响应图及其计算方法  

Wave-number response of Shanghai Seismic Array and its calculating method

作　　者：佟玉霞[1] 朱元清[1] 

机构地区：[1]上海市地震局,中国上海200062

出　　处：《地震地磁观测与研究》2002年第2期47-54,共8页Seismological and Geomagnetic Observation and Research

摘　　要：地震台阵的响应特性是衡量台阵对地震监测能力的重要标志。根据台阵响应特性 ,可分析台阵子台布局的合理性和波数分辨率。本文采用简单延时相加方法 ,并用不同频率下的波数k为上海地震台阵计算并绘制二维与三维的波数响应图。结果表明 ,该台阵响应图具有显著的主瓣峰 ,而且边瓣少且峰值低 。The response characteristic of seismic array is the important index for estimating the ability of detecting earthquake in the array.According to the response characteristic of array,we can analyze the rationality of array deployment and its wave-number resolution.The wave-number response figures with two-dimension and three-dimension are computed and drawn for Shanghai Seismic Array from wave-numbers(k) with different frequencies by using the method of simple delay-beam.The result shows that the array response figures have the prominent main peak and less sub-peaks with low values,and Shanghai Seismic Array has a higher resolution of wave-number.

关 键 词：上海地震台阵 波数响应 子台布局建模 地震监测 频率 

分 类 号：P315.6[天文地球—地震学]