【摘要】 地磁日变数据是地球的主要地球物理学特征。当地震发生时,经常伴随着剧烈的地磁变化。文中将FFT这一数字信号处理算法应用于地磁日变数据处理,并通过中国西部实测地磁日变数据处理实验验证,其精度高于一般的多项式拟合法。更多还原

【Abstract】 Geomagnetic diurnal variation is an important geophysical feature on the earth.When the earthquake happens,the evident magnetic change always turns up.A new method based on digital signal processing technology is presented.The method is used to process the magnetic data of a magnetic diurnal variation station in the western part of China,as aresult of which the precision shows higher than the polynomial method.更多还原