强震记录仪器响应失真校正的权函数方法──时域离散序列数值分析方法与应用研究之二
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摘要
简要评述了现有强震记录仪器响应失真校正方法的优点和存在的不足。在文献［１］的基础上，提出了对强震记录进行仪器响应失真校正的权函数方法，并推导建立了相应的计算公式。通过设计真实地震动为已知的算例，对加速度摆和速度摆强震仪的未校正记录，和用不同方法获得的校正记录的精度（或误差）进行了对比分析。理论和算例分析表明，本文方法简单、实用，具有很高的计算精度且无稳定性问题。
After a short review of the state of the art of instrument response correction of strong motion accelerograms, a new method, called as "weighting function method"is presented for the same purpose for strong motion data. In several numerical analysis, an assumed accelerogram was used as the input to the instrument base and calculated response of instrument was taken as the record of the instrument. The correction of the instrument record was carried out by several traditional approaches and the recommended one. A comparison among the actual input data, recorded response of instrument and the corrected records by traditional approaches and the recommended one showed that the weighting function method presented in this paper is much more precise and more efficient than the traditional ones.
After a short review of the state of the art of instrument response correction of strong motion accelerograms, a new method, called as "weighting function method"is presented for the same purpose for strong motion data. In several numerical analysis, an assumed accelerogram was used as the input to the instrument base and calculated response of instrument was taken as the record of the instrument. The correction of the instrument record was carried out by several traditional approaches and the recommended one. A comparison among the actual input data, recorded response of instrument and the corrected records by traditional approaches and the recommended one showed that the weighting function method presented in this paper is much more precise and more efficient than the traditional ones.
引文
[1]张晓志,谢礼立.数字强震记录“精确”插值、积分和微分的权函数算法[J].世界地震工程, 2000, 16(4)
[2]谢礼立,于双久,等.强震观测与分析原理[M].北京:地震出版社,1982.
[3]谢礼立,等.我国强震记录处理和分析方法的若干特点[J].地震工程与工程振动,1983,3(l)
[4]谢礼立,等.强震加速度记录的常规处理和分析方法[M].地震工程与工程振动, 1984, 6(3).
[5]王家行.RLJ—1型美容式力平衡加速度计[J].地震工程与工程振动,1988,8(2)
[6] Trifunac M D, Udwadia F E, Brady A G. Analysis of errors in digitized strong-motion accelerograms[J], Bull.Seism. Soc. Am., 1973, 63(l): 157- 183.
[7]徐宏林.强震记录处理方法的研究和改进[D].哈尔滨:中国地震局工程力学研究所,1988.
[8] Shoja-Taheri J, A new assessment of errors from digitization and baseline corrections of strong motionaccelerograms[J], Bull. Seism. Soc. Am., 1980, 70(l):293- 303.
[2]谢礼立,于双久,等.强震观测与分析原理[M].北京:地震出版社,1982.
[3]谢礼立,等.我国强震记录处理和分析方法的若干特点[J].地震工程与工程振动,1983,3(l)
[4]谢礼立,等.强震加速度记录的常规处理和分析方法[M].地震工程与工程振动, 1984, 6(3).
[5]王家行.RLJ—1型美容式力平衡加速度计[J].地震工程与工程振动,1988,8(2)
[6] Trifunac M D, Udwadia F E, Brady A G. Analysis of errors in digitized strong-motion accelerograms[J], Bull.Seism. Soc. Am., 1973, 63(l): 157- 183.
[7]徐宏林.强震记录处理方法的研究和改进[D].哈尔滨:中国地震局工程力学研究所,1988.
[8] Shoja-Taheri J, A new assessment of errors from digitization and baseline corrections of strong motionaccelerograms[J], Bull. Seism. Soc. Am., 1980, 70(l):293- 303.
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