【摘要】 基于小波变换理论,提出应用小波分析方法识别、提取昌黎地震台大地电场数字化观测资料不同频率信息的方法。结合实例,讨论小波分析方法在识别与分离不同频率信息、提取趋势异常与短期异常等方面的应用。研究表明,小波变换是大地电场数字化观测资料分析处理的一种新的有效方法。更多还原

【Abstract】 Based on theory of wavelet transformation,the method to identify and extract different frequency information of digital observation data of Earth’s electric field at Changli Seismological Station by using wavelet analysis is proposed.Using real example,application of wavelet analysis on identifying and departing different frequency information,extracting trend anomaly and short-term anomaly etc.is discussed.The study result indicates that wavelet transformation is a new effective method to analyze digital observation data of Earth’s electric field.更多还原