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地震动瞬时谱估计的UnscentedKalman滤波方法

李英民 董银峰 赖明

李英民, 董银峰, 赖明. 地震动瞬时谱估计的UnscentedKalman滤波方法[J]. 应用数学和力学, 2007, 28(11): 1370-1378.
引用本文: 李英民, 董银峰, 赖明. 地震动瞬时谱估计的UnscentedKalman滤波方法[J]. 应用数学和力学, 2007, 28(11): 1370-1378.
LI Ying-min, DONG Yin-feng, LAI Ming. Instantaneous Spectrum Estimation of Earthquake Ground Motions Based on Unscented Kalman Filter Method[J]. Applied Mathematics and Mechanics, 2007, 28(11): 1370-1378.
Citation: LI Ying-min, DONG Yin-feng, LAI Ming. Instantaneous Spectrum Estimation of Earthquake Ground Motions Based on Unscented Kalman Filter Method[J]. Applied Mathematics and Mechanics, 2007, 28(11): 1370-1378.

地震动瞬时谱估计的UnscentedKalman滤波方法

基金项目: 国家自然科学基金资助项目(50008017);教育部新世纪优秀人才支持计划资助项目(NCET-06-0765)
详细信息
    作者简介:

    李英民(1968- ),男,山东人,教授,博士生导师(联系人.Tel:+86-23-65121991;E-mail:liyingmin@cqu.edu.cn).

  • 中图分类号: O211.64;P315.3

Instantaneous Spectrum Estimation of Earthquake Ground Motions Based on Unscented Kalman Filter Method

  • 摘要: 用时变ARMA模型描述地震动时程,提出了采用Unscented Kalman滤波技术实现地震动瞬时谱估计的思路.算例分析表明,Unscented Kalman滤波方法较Kalman滤波方法适用范围广,具有较高的时间和频率分辨率,能够更好地跟踪地震动的局部特性,适合处理非线性模型或有突变特性的模型的辨识问题.不同阶数ARMA模型的估计结果还表明,以往被忽略的ARMA模型的理论频率分辨力对地震动瞬时谱估计精度有重要影响,应作为一个参考指标在ARMA模型的判阶中加以考虑.
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出版历程
  • 收稿日期:  2006-09-20
  • 修回日期:  2007-09-04
  • 刊出日期:  2007-11-15

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