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  1. 060 工学部
  2. 10 学術雑誌論文
  3. 10 査読済論文
  1. 0 資料タイプ別
  2. 01 学術雑誌論文

Fast Wavelet Transform and Its Application to Detecting Detonation

http://hdl.handle.net/10191/6490
http://hdl.handle.net/10191/6490
af6824f0-781d-4c13-9046-1cadb0d786d1
名前 / ファイル ライセンス アクション
e75-a_8_980.pdf e75-a_8_980.pdf (1.2 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2008-07-16
タイトル
タイトル Fast Wavelet Transform and Its Application to Detecting Detonation
タイトル
言語 en
タイトル Fast Wavelet Transform and Its Application to Detecting Detonation
言語
言語 eng
キーワード
主題Scheme Other
主題 digital signal processing
キーワード
主題Scheme Other
主題 wavelets
キーワード
主題Scheme Other
主題 signals and waves
キーワード
主題Scheme Other
主題 acoustics
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Kikuchi, Hisakazu

× Kikuchi, Hisakazu

WEKO 6281

Kikuchi, Hisakazu

Search repository
Nakashizuka, Makoto

× Nakashizuka, Makoto

WEKO 6282

Nakashizuka, Makoto

Search repository
Watanabe, Hiromichi

× Watanabe, Hiromichi

WEKO 6283

Watanabe, Hiromichi

Search repository
Watanabe, Satoru

× Watanabe, Satoru

WEKO 6284

Watanabe, Satoru

Search repository
Tomisawa, Naoki

× Tomisawa, Naoki

WEKO 6285

Tomisawa, Naoki

Search repository
著者別名
識別子 6286
識別子Scheme WEKO
姓名 菊池, 久和
著者別名
識別子 6287
識別子Scheme WEKO
姓名 渡辺, 弘道
抄録
内容記述タイプ Abstract
内容記述 Fast wavelet transform is presented for realtime processing of wavelet transforms. A processor for the fast wavelet transform is of the frequency sampling structure in architectural level. The fast wavelet transform owes its parallelism both to the frequency sampling structure and parallel tapping of a series of delay elements. Computational burden of the fast transform is hence independent of specific scale values in wavelets and the parallel processing of the fast transform is readily implemented for real-time applications. This point is quite different from the computation of wavelet transforms by convolution. We applied the fast wavelet transform to detecting detonation in a vehicle engine for precise real-time control of ignition advancement. The prototype wavelet for this experiment was the Gaussian wavelet (i.e. Gabor function) which is known to have the least spread both in time and in frequency. The number of complex multiplications needed to compute the fast wavelet transform over 51 scales is 714 in this experiment, which is less than one tenth of that required for the convolution method. Experimental results have shown that detonation is successfully detected from the acoustic vibration signal picked up by a single knock sensor embedded in the outer wall of a V/8 engine and is discriminated from other environmental mechanical vibrations.
書誌情報 IEICE transactions on fundamentals of electronics, communications and computer sciences
en : IEICE transactions on fundamentals of electronics, communications and computer sciences

巻 E75-A, 号 8, p. 980-987, 発行日 1992-08
出版者
出版者 The Institute of Electronics, Information and Communication Engineers
ISSN
収録物識別子タイプ ISSN
収録物識別子 09168508
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10826239
権利
権利情報 copyright©1992 IEICE
著者版フラグ
値 publisher
異版である
関連タイプ isVersionOf
識別子タイプ URI
関連識別子 http://www.ieice.org/jpn/trans_online/
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