| 尾波振幅比和能量比异常特征研究 |
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| 引用本文： | 尹志文,李萍.尾波振幅比和能量比异常特征研究[J].高原地震,2001,13(4):47-51. |
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| 作者姓名： | 尹志文 李萍 |
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| 作者单位： | 中国地震局兰州地震研究所观象台，甘肃兰州730046 |
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| 摘 要： | 利用中国数字地震台网（CDSN）兰州台记录的短周期数字地震资料，测定了尾波最大振幅与S波最大振幅之比r1、尾波能量与S波能量之比的平方根值r2随时间的变化。结果表明：在永登主震（19950和天祝-古浪主震（1996）前，r1和r2均出现上升或下降异常变化，且有较大的偏离平均值的异常高值或异常低值出现。
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| 关 键 词： | 尾波 振幅比 能量比 P波 S波 数字地震台网 |
STUDY ON THE ANOMALOUS CHARACTERISTICS OF AMPLITUDE RATIO AND ENERGY RATIO OF CODE WAVES |
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| YIN Zhi-wen,LI Ping.STUDY ON THE ANOMALOUS CHARACTERISTICS OF AMPLITUDE RATIO AND ENERGY RATIO OF CODE WAVES[J].Plateau Earthquake Research,2001,13(4):47-51. |
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| Authors: | YIN Zhi-wen LI Ping |
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| Abstract: | Short period digital seismic data of Lanzhou seismic station in Chinese Digital Seismic Network (CDSN) are used to measured the changed with time for ratio r 1 (maximum amplitade of code wave with S wave) and the square root of ratio r 2 (coda energy with S energy).The results show that before Yongdeng earthquake in 1995 and Tianzhu-Gulang earthquake in 1996,the r 1 and r 2 have been increased or decreased and have anomalous high and low values that deviated average value. |
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| Keywords: | Code wave Amplitude ratio Energy ratio Anomalous characteristic |
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