http://scholars.ntou.edu.tw/handle/123456789/2479
標題: | Application of Cesàro mean and the L-curve for the deconvolution problem | 作者: | Chen, L. Y. Jeng-Tzong Chen Hong, H. K. Chen, C. H. |
關鍵字: | Cesàro mean;L curve;deconvolution | 公開日期: | 1995 | 出版社: | ScienceDirect | 卷: | 14 | 期: | 5 | 起(迄)頁: | 361-373 | 來源出版物: | Soil Dynamics and Earthquake Engineering | 摘要: | In this paper, the Cesàro mean technique is applied to regularize the divergent problem which occurs in ground motion deconvolution analysis in geotechnical engineering. To deal with this ill-posed problem, we use the corner of the L-curve as the compromise point to determine the optimal order of Cesàro mean so that the high frequency content can be suppressed instead of engineering judgement using the concept of a cutoff frequency. The fractional order of Cesàro mean has been derived and used to fulfill this purpose. From the examples shown, it is found that the wave form including maximum acceleration can be accurately predicted and that both the high frequency content and divergent results can be avoided by using the proposed regularization technique. |
URI: | http://scholars.ntou.edu.tw/handle/123456789/2479 | ISSN: | 0267-7261 | DOI: | 10.1016/0267-7261(95)00003-d |
顯示於: | 河海工程學系 |
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