| Vondrak滤波法在定点地形变资料分析中的应用 |
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| 引用本文： | 杨马陵,苏乃秦,郑大伟.Vondrak滤波法在定点地形变资料分析中的应用[J].西北地震学报,1994,16(1):52-57. |
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| 作者姓名： | 杨马陵 苏乃秦 郑大伟 |
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| 作者单位： | 新疆维吾尔自治区地震局，中国科学院上海天文台 |
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| 摘 要： | 本文使用天文学数据处理中常用的Ｖｏｎｄｒａｋ平滑滤波法，对库尔勒短水准和呼图壁断层形变资料进行了高通、低通和带通数字滤波处理。结果表明，处理后的资料突出了地震前不同周期的地壳形变异常信息，降低了背景噪声和观测误差的影响。该方法对于识别形变异常有较好的效果。
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| 关 键 词： | Vondrak平滑滤波法 数字滤波 定点地壳形变 地形变异常 |
| 收稿时间： | 1992/10/13 0:00:00 |
APPLICATION OF VONDRAK FILTERING FOR ANALYSIS ON DATA OF FIXED POENT CRUSTAL DEFORMATION |
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| Yang Maling,Su Naiqin and Zheng Dawei.APPLICATION OF VONDRAK FILTERING FOR ANALYSIS ON DATA OF FIXED POENT CRUSTAL DEFORMATION[J].Northwestern Seismological Journal,1994,16(1):52-57. |
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| Authors: | Yang Maling Su Naiqin and Zheng Dawei |
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| Institution: | Seismological Bureau of Xin jiang Uygur Autonomous Region, Urumqi,Seismological Bureau of Xin jiang Uygur Autonomous Region, Urumqi and Shanghai Astronomical Observatory, Chinese Academy of Sciences |
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| Abstract: | The common Vondrak smoothing filtering method,used in astronomy data handling,was adopt-ed here to deal with the two groups of fixed point horizontal and vertical crust deformation data bymeans of high-pass,low-pass and band-pass digital filterings,respectively.The results showed thatafter handling the data,the abnormal informations of crustal deformation for different periods prior tothe shocks were obviously and the effects of background noise and observing error were reduced aswell.It also indicated that the method is of a better capability for recognized the abnormal of pre-earthquake deformation. |
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| Keywords: | Vondrak smoothing method Fixed point crustal deformation Digital signal filtering Abnormal of crustal deformation |
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