河南荥阳台水管观测的高频抖动信号分析
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摘要
通过对河南荥阳地震台形变观测曲线中的"高频抖动信号"与干扰因素的对比分析,认为这种高频抖动信号有别于干扰信号,具有一定的前兆意义,是地壳形变过程的一种反映,也是一种前兆性异常现象。这种高频信号要在排除风扰等因素后才能够找出其真正的映震前兆信息。
By comparing high-frequency dithering signals in deformation observation with interference factors of Xingyang seismological station,the high-frequency dithering signal,different from the interference signal,is thought to have certain precursor meaning,which is a kind of reflection of crustal deformation process and can be taken as a precursor anomaly phenomenon,.Only when interference signals,such as wind disturbing,are removed,the real earthquake precursor information of this kind of high-frequency dithering signal can be distinguished.
By comparing high-frequency dithering signals in deformation observation with interference factors of Xingyang seismological station,the high-frequency dithering signal,different from the interference signal,is thought to have certain precursor meaning,which is a kind of reflection of crustal deformation process and can be taken as a precursor anomaly phenomenon,.Only when interference signals,such as wind disturbing,are removed,the real earthquake precursor information of this kind of high-frequency dithering signal can be distinguished.
引文
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[6]陈建国.形变数字化资料对山西地区地震前兆反应研究[J].山西地震.2009(1):1-8.
[2]李希亮.山东形变固体潮数字化资料的干扰因素分析[J].高原地震,2008,20(3):38-43.
[3]王梅,李峰,孔向阳,等.数字化形变观测干扰识别[J].大地测量与地球动力学,2004(1):96-100.
[4]陈德福.气流扰动对自记水管倾斜仅影响的实验结果.∥地壳形变动力学观测与研究.北京:海洋出版社,1993:80-87.
[5]陈德福.倾斜异常图像分类及其特征浅析.∥地壳形变动力学观测与研究.北京:海洋出版社.1993:179-187.
[6]陈建国.形变数字化资料对山西地区地震前兆反应研究[J].山西地震.2009(1):1-8.
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