| 2013年海西5.0级地震波形时频特性研究 |
| |
| 引用本文： | 李玮杰,万玉杰.2013年海西5.0级地震波形时频特性研究[J].高原地震,2014(2):12-15. |
| |
| 作者姓名： | 李玮杰 万玉杰 |
| |
| 作者单位： | 青海省地震局,青海西宁810000 |
| |
| 基金项目： | 青海省地震科学基金（2012A04）. |
| |
| 摘 要： | 传统的傅里叶变换因缺乏信号局域性的信息,无法对地震波等非平稳信号进行全面描述,时频分析通常是分析非平稳信号较好的工具.本文利用大柴旦地震台记录到的2013年6月5日青海海西5.0级地震波形,采用赵-阿特拉斯-马克时频分布（ZAM）分别研究了该地震P波、S波段的时间-频率特征.研究结果很好地解释了地震波的非平稳性,较全面地展示了地震波的衰减特征.
|
| 关 键 词： | 海西地震 时频分析 ZAM分布 |
STUDY ON THE TIME-FREQUENCY CHARACTERISTICS OF HAIXI 5.0 EARTHQUAKE WAVE FORM IN 2013 IN QINGHAI PROVINCE |
| |
| LI Weijie,WAN Yujie.STUDY ON THE TIME-FREQUENCY CHARACTERISTICS OF HAIXI 5.0 EARTHQUAKE WAVE FORM IN 2013 IN QINGHAI PROVINCE[J].Plateau Earthquake Research,2014(2):12-15. |
| |
| Authors: | LI Weijie WAN Yujie |
| |
| Institution: | ( Earthquake Administration of Qinghai Province, Xining 810001, China) |
| |
| Abstract: | The traditional Fourier transform of signal lacks the local information, and can not describe the non-stationary signal of earthquake wave. The time-frequency analysis is usually a good tool for analyzing non-stationary signal. Using the seismic wave form of Haixi 5.0 earthquake in Qinghai province on June 5, 2013 recorded by Dachaidan seismic station, the time-frequency characteristics of seismic P wave and S wave arestudied by Zhao-Atlas-Mark（ZAM） distribution. The results interprete the non-stationarity of the seismic waveand demonstrate the seismic wave attenuation characteristics. |
| |
| Keywords: | Haixi 5 0 earthquake Time-frequency analysis Zhao-Atlas-Mark （ZAM） distribution |
| 本文献已被 维普 等数据库收录！ |
|
