节点文献
基于振幅和瞬时频率的震相自动识别方法
Automatic recognition of seismic phase based on amplitude and instantaneous frequency
【摘要】 为了充分反映地震信号振幅增大和频率改变的特征,发展了一种以振幅和瞬时频率比乘积为特征参量的震相自动识别方法。谐波信号和有限实际地震记录的应用表明,本方法具有较高的识别精度。
【Abstract】 In order to reflect the characteristics of amplitude increase and frequency changing of seismic signal,a new automatic recognition method of seismic phase is developed based on the instantaneous amplitude and instantaneous frequency.By application of some harmonious signals and real seismic records,the precision and stability of the method are proved.
【关键词】 震相自动识别;
振幅;
瞬时频率;
【Key words】 Automatic recognition of seismic phase; amplitude; instantaneous frequency;
【Key words】 Automatic recognition of seismic phase; amplitude; instantaneous frequency;
【基金】 国家自然科学基金资助项目(50378086);地震科学联合基金资助课题(104139)
- 【文献出处】 世界地震工程 ,World Earthquake Engineering , 编辑部邮箱 ,2006年04期
- 【分类号】P315
- 【被引频次】18
- 【下载频次】278