摘要
概述了用数字化地磁脉动仪资料计算复转换函数的技术路线和资料处理方法。给出了资料处理结果。由图看出，在没有地震的正常年份，转换函数围绕相当稳定的取值涨落。对于4级左右的地震，只有周期较小的转换函数有异常反应。由于1～3天即可求一组转换函数，因此可应用此方法探察有无短临异常。
In this paper, the method for computing the complex transfer functions using the data ofdigital geomagnetic pulsation meter is described, and the result of data processing is given.From the figures we can see that during the normal period without earthquake occurrence, thetransfer functions fluctuate around the stable values. As for earthquake with magnitude around4, the transfer functions only with short periods have anomalous response. Because calculatinga set of transfer functions requires data for only 1～3 days, it is possible to apply this methodfor searching the short-term and imminent anomalies.
出处
《地震》
CSCD
北大核心
1998年第S1期39-44,共6页
Earthquake
基金
地震科学联合基金会
天津市地震局的资助
关键词
地磁短周期变化
复转换函数
电性结构
感应磁效应
Geomagnetic short-period variation, Complex transfer functions, Electricstructure, Induced magnetic effect
