Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Akira Nakaoka"'
2
Smoothness of rank M scaling functions
Autor: Tatsuhiko Yagasaki, Akira Nakaoka, Hiroyuki Ôkura, Fumio Maitani
Publikováno v: Applied and Computational Harmonic Analysis. 13:116-137
This article investigates the smoothness of rank M scaling functions and gives some numerical results. Smoothness of a scaling function ϕ is studied by introducing an exponent s p ( ϕ ), which is represented by the spectral radius of the transfer o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c7e8017993956be74239771a092c43d
https://doi.org/10.1016/s1063-5203(02)00502-x
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3
Restoration of lost samples by oversampling near the Nyquist rate
Autor: Akira Nakaoka, Ryuichi Ashino, Masaharu Arai
Publikováno v: Japan Journal of Industrial and Applied Mathematics. 16:123-136
A formula in matrix form for restoration is given and the matrix with the sampling rate near the Nyquist rate is investigated. Elements of this matrix can be expanded in Laurent series of the sampling rate parameter, which is defined by the quotient
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c7573fe82e427723bbd01d40771dc01
https://doi.org/10.1007/bf03167527
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5
A Method for Construction of Wavelet Systems
Autor: Akira,NAKAOKA, Akira,UEDA
In this report we give a method for construction of wavelet system from MRA, which is different from Daubechies-Heller method. In addition we set several conditions in order to form the smooth wavelet under various parameters.
京都工芸繊維
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::3b3ca3c327464b6d86098b06af123a2a
http://hdl.handle.net/10212/1753
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6
Une Démonstration d'Analycité de Fonctions Trigonométriques sans Usage du Calcul Infinitésimal
Autor: Akira,NAKAOKA
In this note we shall give a proof that cos x and sin x can be developed into the Maclaurin series without using calculus. Our starting point is the following well-known inequalities; sin x ≤ x ≤ tan x (0 ≤ x < π/2). Of course, we shall make u
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::444285c70b7f4bf842b1eb0995a931fa
http://hdl.handle.net/10212/1754
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7
Une Démonstration Élémentaire du Théorème Fondamental d'Aigèbre
Autor: Akira,NAKAOKA
In this note, we give a completely elementary proof of the fundamental theorem of algebra in a version which is real function theoretic. The proof is based only on some elementary knowledge of calculus, linear algebra and complex numbers.
京都
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::b195a4c3cb680b5180393eda6f3f0b56
http://hdl.handle.net/10212/1752
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8
Regularity Between Orthonormal Wavelet Transform of Output Signal and Input Signal or Transmitting System
Autor: Akira Sone, Akira Nakaoka, Arata Masuda, Shizuo Yamamoto, Ryuichi Ashino
Publikováno v: Computational Mechanics ’95 ISBN: 9783642796562
The health monitoring system by using wavelet transform has been proposed for detecting the signal generated by the development of fatigue of machines and structures under the noisy condition[1]. There, the orthonormal wavelets by Daubechies[2] were
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::48e411c0cabb8945406f0a49bb5bc2f2
https://doi.org/10.1007/978-3-642-79654-8_110
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