{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1390282679358826752.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.20551/jscswabun.10.2_93"}},{"identifier":{"@type":"NDL_BIB_ID","@value":"111387"}},{"identifier":{"@type":"URI","@value":"http://id.ndl.go.jp/bib/111387"}},{"identifier":{"@type":"URI","@value":"https://ndlsearch.ndl.go.jp/books/R000000004-I111387"}},{"identifier":{"@type":"NAID","@value":"110001236467"}}],"dc:title":[{"@language":"ja","@value":"連続ウェーブレット変換による時間 : 周波数解析"},{"@language":"en","@value":"TIME-FREQUENCY ANALYSIS BY CONTINUOUS WAVELET TRANSFORM"},{"@language":"ja-Kana","@value":"レンゾク ウェーブレット ヘンカン ニ ヨル ジカンーシュウハスウ カイセキ"}],"dc:language":"ja","description":[{"type":"abstract","notation":[{"@language":"en","@value":"Wavelet transform is a well-known and remarkable way of time-frequency analysis and it is used in various fields. Although an important problem in wavelet transform is how to select mother wavelet, the unified selection of mother wavelet is not yet realized at present. In this paper, we classify a mother wavelet into the complex type and the real type. The real type component is further divided into a symmetric type, an skew-symmetric type and an asymmetric type by the symmetric property of the function. The properties of so classified mother wavelets are examined by a reference signal. The selection and applicability of each mother wavelet are also examined, and it is found that the complex type mother wavelet is most efficient for time-frequency analysis."},{"@language":"ja","@value":"連続ウェーブレット変換(Continuous Wavelet Transform; CWT)は時間-周波数解析の道具として優れた性質をもち,さまざまな分野での応用が試みられているが,変換の核となるマザーウェーブレット(Mother Wavelet; MW)の選択が重要であるにもかかわらす,統一された選択方法がないのが現状である.本研究ではモデル信号を用いてMWの特性を比較検討し,それらの選択について検討した.その結果,通常の時間-周波数解析の場合,複素数型MWを選択する方がよいという知見が得られた.また,実数型MWはその関数の対称性が重要な個性であり,信号の中の異なる性質を抽出するときなどに有効であった."}],"abstractLicenseFlag":"disallow"}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1420282801209201152","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"50254579"},{"@type":"NRID","@value":"1000050254579"},{"@type":"NRID","@value":"9000002844245"},{"@type":"NRID","@value":"9000404499539"},{"@type":"NRID","@value":"9000411648340"},{"@type":"NRID","@value":"9000255781503"},{"@type":"NRID","@value":"9000255779264"},{"@type":"NRID","@value":"9000411648347"},{"@type":"NRID","@value":"9000256237542"},{"@type":"NRID","@value":"9000003803191"},{"@type":"NRID","@value":"9000273019805"},{"@type":"NRID","@value":"9000256234942"},{"@type":"NRID","@value":"9000412561492"},{"@type":"NRID","@value":"9000347039791"},{"@type":"NRID","@value":"9000255764196"},{"@type":"NRID","@value":"9000256232901"},{"@type":"NRID","@value":"9000254859503"},{"@type":"NRID","@value":"9000255764502"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/read0158741"}],"foaf:name":[{"@language":"ja","@value":"章 忠"},{"@language":"en","@value":"Zhang Zhong"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Industrial Technology Center of Okayama Prefecture"},{"@language":"ja","@value":"岡山県工業技術センター"}]},{"@id":"https://cir.nii.ac.jp/crid/1410282679358826624","@type":"Researcher","foaf:name":[{"@language":"ja","@value":"川畑 洋昭"},{"@language":"en","@value":"Kawabata Hiroaki"}],"jpcoar:affiliationName":[{"@language":"en","@value":"Okayama Prerectural University"},{"@language":"ja","@value":"岡山県立大学情報工学部"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"09148930"},{"@type":"EISSN","@value":"21899789"},{"@type":"NDL_BIB_ID","@value":"000000062958"},{"@type":"ISSN","@value":"09148930"},{"@type":"LISSN","@value":"09148930"},{"@type":"NCID","@value":"AN10195854"}],"prism:publicationName":[{"@language":"ja","@value":"計算機統計学"},{"@language":"en","@value":"Bulletin of the Computational Statistics of Japan"}],"dc:publisher":[{"@language":"en","@value":"Japanese Society of Computational Statistics"},{"@language":"ja","@value":"日本計算機統計学会"}],"prism:publicationDate":"1998","prism:volume":"10","prism:number":"2","prism:startingPage":"93","prism:endingPage":"101"},"url":[{"@id":"http://id.ndl.go.jp/bib/111387"},{"@id":"https://ndlsearch.ndl.go.jp/books/R000000004-I111387"}],"availableAt":"1998","foaf:topic":[{"@id":"https://cir.nii.ac.jp/all?q=Mother%20wavelet","dc:title":"Mother wavelet"},{"@id":"https://cir.nii.ac.jp/all?q=Real%20type%20wavelet","dc:title":"Real type wavelet"},{"@id":"https://cir.nii.ac.jp/all?q=Complex%20type%20wavelet","dc:title":"Complex type wavelet"},{"@id":"https://cir.nii.ac.jp/all?q=Symmetricalness","dc:title":"Symmetricalness"}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1363388845822621312","@type":"Article","relationType":["cites"],"jpcoar:relatedTitle":[{"@value":"Orthonormal bases of compactly supported wavelets"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205166910592","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"A New Wavelet : RI-Spline Wavelet and its Application to Unsteady Turbulence Analysis"},{"@value":"新たなウェーブレット : RI-Splineウェーブレットおよびその非定常乱流解析への応用"},{"@language":"ja-Kana","@value":"アラタ ナ ウェーブレット RI Spline ウェーブレット オヨビ ソノ ヒテイジョウ ランリュウ カイセキ エ ノ オウヨウ"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001206183009664","@type":"Article","relationType":["isCitedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Wavelet Transform Analysis of Unsteady Turbulence and Turbulent Burning Velocity in a Constant-Volume Vessel."},{"@value":"ウェーブレット変換による密閉容器内の非定常乱流と乱流燃焼速度の解析"},{"@language":"ja-Kana","@value":"ウェーブレット ヘンカン ニ ヨル ミッペイ ヨウキ ナイ ノ ヒテイジョウ ランリュウ ト ランリュウ ネンショウ ソクド ノ 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