山西地震
山西地震
산서지진
EARHTQUAKE RESEARCH IN SHANXI
2011年
2期
6-9
,共4页
荆红亮%张仰辉%李艳%冯建琴%李军
荊紅亮%張仰輝%李豔%馮建琴%李軍
형홍량%장앙휘%리염%풍건금%리군
前兆信息%形变资料%小波变换
前兆信息%形變資料%小波變換
전조신식%형변자료%소파변환
Precursory information%Deformation data%Wavelet transform
文章主要根据小波变换方法在不同尺度时细节的变化特征,通过一些震例对山西数字形变资料进行分析研究,发现,经过小波变换处理后的数据在细节部分达到第5层、第6层时,震前资料会显示出比较同步的长周期信号,这为识别和提取数字洞体形变资料中的趋势异常和短期异常提供了新的探索思路和方法。
文章主要根據小波變換方法在不同呎度時細節的變化特徵,通過一些震例對山西數字形變資料進行分析研究,髮現,經過小波變換處理後的數據在細節部分達到第5層、第6層時,震前資料會顯示齣比較同步的長週期信號,這為識彆和提取數字洞體形變資料中的趨勢異常和短期異常提供瞭新的探索思路和方法。
문장주요근거소파변환방법재불동척도시세절적변화특정,통과일사진례대산서수자형변자료진행분석연구,발현,경과소파변환처리후적수거재세절부분체도제5층、제6층시,진전자료회현시출비교동보적장주기신호,저위식별화제취수자동체형변자료중적추세이상화단기이상제공료신적탐색사로화방법。
Based on mainly the detailed variation characteristics obtained by using wavelet transform method in different scales , the Shanxi digital deformation observation data is analyzed and studied for some earthquakes in this paper. The results indicate that the observation data before earthquakes will present very long-frequency signal once the detailed part of the data treated by wavelet transform reaches the fifth and sixth layers, which may provide a new way for identification and extraction tendency anomalies and short-time anomalies from the digital cave body deformation observation data in the future.
