掲載雑誌（和）：	日本地震工学シンポジウム論文集
Vol：	11巻
年：	2002年
頁：	527-532頁
著者（和）：	増田　新，曽根　彰
タイトル（和）：	実地震波の応答スペクトルと非定常特性を反映した模擬地震波のウェーブレット変換に基づく合成
抄録（和）：	-
キーワード（和）：	模擬地震波，ウェーブレット変換，逆問題，非定常
掲載雑誌（英）：	THE EARTHQUAKE ENGINEERING SYMPOSIUM PROCEEDINGS
著者（英）：	Arata Masuda, Akira Sone
タイトル（英）：	WAVELET-BASED SYNTHESIS OF ARTIFICIAL EARTHQUAKE MOTIONS CONSISTENT WITH RESPONSE SPECTRA AND NONSTATIONARITY OF REAL EARTHQUAKE RECORDS
抄録（英）：	In this paper, a new method for generating artificial earthquake motions is proposed, in which one can explicitly design the time-frequency characteristics of the earthquake as well as its response spectra. First, it is shown that the velocity response spectrum at a specific period can be interpreted as the maximum amplitude of the wavelet transform in which the velocity impulse response function of a single-degree-of-freedom system is used as the analyzing wavelet. Using this relationship, a spectrum-compatible artificial earthquake motion with the desirable time-frequency characteristics is generated in the wavelet domain by an iterative correction-projection scheme. Some illustrative examples are investigated to demonstrate that the proposed scheme can generate “replicas” of real earthquake records which preserve their response spectra and the nonstationarity in time and frequency.
キーワード（英）：	Artificial earthquake motion, Wavelet transform, Inverse problem, Nonstationary
記事区分：	-
区分：	委員会論文集