書誌事項
- タイトル別名
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- ESTIMATION OF FOURIER PHASE BASED ON FOURIER AMPLITUDE OF DIGITIZED EARTHQUAKE GROUND MOTION BY WIENER-LEE TRANSFORM
- Wiener-Lee ヘンカン オ モチイテ ジシンドウ ハケイ ノ Four
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抄録
An approximate representation of Wiener-Lee transform which describes the relation between Fourier amplitudes and phases of the minimum-phase-shift function is introduced in this paper. It is applied to the Fourier amplitudes of the earthquake ground motions to estimate the Fourier phases. The minimum-phase-shift functions are generated by the inverse Fourier transform of the amplitudes and the estimated phases. The results indicate that the complicated acceleration and velocity motions, such as those recorded in the epicentral regions of the 1979 Imperial Valley earthquake (M_L=6.6) or the 1983 Coalinga earthquake (M_L=6. 7), are quite different from the minimum-phase-shift functions. But their aftershock motions, with local magnitude of about 5. are similar to the minimum-chase-shift functions.
収録刊行物
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- 日本建築学会構造系論文報告集
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日本建築学会構造系論文報告集 379 (0), 15-25, 1987
一般社団法人 日本建築学会
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詳細情報 詳細情報について
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- CRID
- 1390282680582016768
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- NII論文ID
- 110004653581
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- NII書誌ID
- AN10040177
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- ISSN
- 24330000
- 09108025
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- NDL書誌ID
- 3139974
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可