| 数字地震波时频分析 |
| |
| 引用本文： | 戴勇,高立新,张帆,尹战军,郝美仙,倪铭. 数字地震波时频分析[J]. 地震地磁观测与研究, 2017, 38(6): 10-16. DOI: 10.3969/j.issn.1003-3246.2017.06.002 |
| |
| 作者姓名： | 戴勇 高立新 张帆 尹战军 郝美仙 倪铭 |
| |
| 作者单位： | 1.中国呼和浩特 010010 内蒙古自治区地震局;2.中国杭州 310013 浙江省地震局 |
| |
| 基金项目： | 中国地震局监测、预测、科研三结合课题（项目编号：160504）；震情跟踪定向工作任务（项目编号：2017010410）；中国地震局地震科技星火计划（项目编号：XH17010Y） |
| |
| 摘 要： | 选取具有较高分辨率和较低交叉项的赵—阿特拉斯—马克斯(ZAM)方法,进行数字化地震波时频处理。结果显示:(1)S波高能量密度区域处于低频段,其频带比P波高能量密度区域窄,且S波能量密度比P波大1个数量级;(2)天然地震的高能量密度分布较为离散,爆破的高能量密度分布较为集中。
|
| 关 键 词： | 数字地震波 时频分析 赵—阿特拉斯—马克斯方法 能量密度 |
Digital seismic wave analysis based on time frequency method |
| |
| Dai Yong,Gao Lixin,Zhang Fan,Yin Zhanjun,Hao Meixian,Ni Ming. Digital seismic wave analysis based on time frequency method[J]. Seismological and Geomagnetic Observation and Research, 2017, 38(6): 10-16. DOI: 10.3969/j.issn.1003-3246.2017.06.002 |
| |
| Authors: | Dai Yong Gao Lixin Zhang Fan Yin Zhanjun Hao Meixian Ni Ming |
| |
| Affiliation: | 1. Earthquake Agency of Inner Mongolia Autonomous Region, Hohhot 010010, China;2. Zhejiang Earthquake Agency, Hangzhou 310013, China |
| |
| Abstract: | Time-frequency analysis is a technique that characterizes and analysis signal by using the joint function of time and frequency. In this paper, time-frequency analysis of digital seismic wave is studied with ZAM method. The main results are as follows: ①High energy density region of S wave locates in the low frequency band, whose frequency band is narrower than the one of P wave, and the energy density of S wave is one order of magnitude bigger than the one of S wave. ②High energy density distribution of natural earthquake is discrete, while high energy density distribution of blasting is concentrative. |
| |
| Keywords: | digital seismic wave time-frequency analysis ZAM method energy density |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地震地磁观测与研究》浏览原始摘要信息 |
|
点击此处可从《地震地磁观测与研究》下载全文 |
