IEICE Trans

Takafumi HAYASHI

Design of Compact Matched Filter Banks of Polyphase ZCZ Codes Sho KURODA Shinya MATSUFUJI Takahiro MATSUMOTO Yuta IDA Takafumi HAYASHI
Publication: Publication Date: 2020/09/01 Vol. E103-A No. 9 pp. 1103-1110 Type of Manuscript: PAPER Category: Spread Spectrum Technologies and Applications Keyword: polyphase sequence, matched filter, logic function, unitary matrix, Hadamard matrix, Fourier transform matrix, unitary transform,
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A Novel Class of Structured Zero-Correlation Zone Sequence Sets Takafumi HAYASHI Takao MAEDA Anh T. PHAM Shinya MATSUFUJI
Publication: Publication Date: 2018/12/01 Vol. E101-A No. 12 pp. 2171-2183 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: zero-correlation zone, ternary sequence, asymmetric zcz, inter-subset zcz,
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A Novel Construction of Tree-Structured Zero-Correlation Zone Sequence Sets Takafumi HAYASHI Yodai WATANABE Takao MAEDA Shinya MATSUFUJI
Publication: Publication Date: 2017/10/01 Vol. E100-A No. 10 pp. 2187-2194 Type of Manuscript: LETTER Category: Coding Theory Keyword: zero-correlation zone, ternary sequence, binary tree, inter-subset zero-correlation zone,
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A Novel Class of Quadriphase Zero-Correlation Zone Sequence Sets Takafumi HAYASHI Yodai WATANABE Toshiaki MIYAZAKI Anh PHAM Takao MAEDA Shinya MATSUFUJI
Publication: Publication Date: 2017/04/01 Vol. E100-A No. 4 pp. 953-960 Type of Manuscript: Special Section LETTER (Special Section on Signal Design and Its Applications in Communications) Category: Sequences Keyword: optimal zero-correlation zone, quadriphase, QS-CDMA, AS-CDMA,
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A Novel Class of Zero-Correlation Zone Sequence Set Having a Low Peak-Factor and a Flat Power Spectrum Takafumi HAYASHI Yodai WATANABE Anh T. PHAM Toshiaki MIYAZAKI Shinya MATSUFUJI Takao MAEDA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2015/12/01 Vol. E98-A No. 12 pp. 2429-2438 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: optimal zero-correlation zone, low peak-factor, pseudo-white noise, perfect sequence,
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Parameterization of High-Dimensional Perfect Sequences over a Composition Algebra over R Takao MAEDA Yodai WATANABE Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2015/12/01 Vol. E98-A No. 12 pp. 2439-2445 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: correlation function, perfect sequence, high-dimensional sequence, parameterization, Fourier transform, convolution,
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Low-Peak-Factor Pseudo-White-Noise Sequence Set with Optimal Zero-Correlation Zone Takafumi HAYASHI Takao MAEDA Shigeru KANEMOTO Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2014/12/01 Vol. E97-A No. 12 pp. 2343-2351 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Communication Theory and Signals Keyword: optimal zero-correlation zone, low peak factor, pseudo white noise, perfect sequence,
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Fourier Analysis of Sequences over a Composition Algebra of the Real Number Field Takao MAEDA Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2013/12/01 Vol. E96-A No. 12 pp. 2452-2456 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: Fourier analysis, convolution, composition algebra, correlation function, perfect sequence,
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Parameterization of Perfect Sequences over a Composition Algebra Takao MAEDA Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/12/01 Vol. E95-A No. 12 pp. 2139-2147 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: parameterization, perfect sequence, autocorrelation, composition algebra, quaternion, octonion,
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A Generalized Construction Scheme of a Zero-Correlation Zone Sequence Set with a Wide Inter-Subset Zero-Correlation Zone Takafumi HAYASHI Takao MAEDA Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2012/11/01 Vol. E95-A No. 11 pp. 1931-1936 Type of Manuscript: Special Section LETTER (Special Section on Signal Design and Its Applications in Communications) Category: Sequences Keyword: sequence design, spreading sequence, CDMA communication, ZCZ, synthetic aperture focusing, inter-subset ZCZ,
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Parameterization of Perfect Arrays of Real Numbers Takao MAEDA Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/11/01 Vol. E94-A No. 11 pp. 2178-2187 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Digital Signal Processing Keyword: parameterization, perfect array, perfect sequence, autocorrelation,
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A Ternary Zero-Correlation Zone Sequence Set Having Wide Inter-Subset Zero-Correlation Zone Takafumi HAYASHI Takao MAEDA Shinya MATSUFUJI Satoshi OKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/11/01 Vol. E94-A No. 11 pp. 2230-2235 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Sequence Keyword: ternary sequence, zero-correlation zone, Hadamard matrix, inter-subset correlation, inter-cell, mutually orthogonal complementary sets,
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A Generalized Construction of Zero-Correlation Zone Sequence Set with Sequence Subsets Takafumi HAYASHI Takao MAEDA Satoshi OKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/07/01 Vol. E94-A No. 7 pp. 1597-1602 Type of Manuscript: LETTER Category: Spread Spectrum Technologies and Applications Keyword: finite-length sequence, sequence subsets, inter-subset zero-correlation, zero-correlation zone, aperiodic correlation function, periodic correlation function,
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Parameterization of Perfect Sequences of Real Numbers Takao MAEDA Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2011/06/01 Vol. E94-A No. 6 pp. 1401-1407 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: perfect sequence, parameterization, zero-correlation zone,
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A Generalized Construction of Optimal Zero-Correlation Zone Sequence Set from a Perfect Sequence Pair Takafumi HAYASHI Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/11/01 Vol. E93-A No. 11 pp. 2337-2344 Type of Manuscript: Special Section LETTER (Special Section on Signal Design and its Application in Communications) Category: Sequences Keyword: sequence design, spreading sequence, CDMA communication, ZCZ, synthetic aperture focusing,
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On a ZCZ Code Including a Sequence Used for a Synchronization Symbol Shinya MATSUFUJI Takahiro MATSUMOTO Tomohiro HAYASHIDA Takafumi HAYASHI Noriyoshi KUROYANAGI Pingzhi FAN
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2010/11/01 Vol. E93-A No. 11 pp. 2286-2290 Type of Manuscript: Special Section PAPER (Special Section on Signal Design and its Application in Communications) Category: Sequences Keyword: ZCZ code, matched filter, correlation, CDMA, short-range communications,
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Zero-Correlation Zone Sequence Set Constructed from a Perfect Sequence and a Complementary Sequence Pair Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/07/01 Vol. E91-A No. 7 pp. 1676-1681 Type of Manuscript: Special Section LETTER (Special Section on Multi-dimensional Mobile Information Networks) Category: Keyword: sequence design, spreading sequence, CDMA communication, zero-correlation zone, perfect sequence, Golay complementary sequence pair,
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A Novel Class of Zero-Correlation Zone Sequence Sets Constructed from a Perfect Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2008/04/01 Vol. E91-A No. 4 pp. 1233-1237 Type of Manuscript: LETTER Category: Coding Theory Keyword: sequence design, spreading sequence, CDMA communication, zero-correlation zone, perfect sequence, synthetic aperture imaging,
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An Integrated Sequence Construction of Binary Zero-Correlation Zone Sequences Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/10/01 Vol. E90-A No. 10 pp. 2329-2335 Type of Manuscript: LETTER Category: Coding Theory Keyword: binary sequence, zero-correlation zone, Hadamard matrix, sequence design, mutually orthogonal complementary sets,
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Zero-Correlation Zone Sequence Set Construction Using an Even-Perfect Sequence and an Odd-Perfect Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/09/01 Vol. E90-A No. 9 pp. 1871-1875 Type of Manuscript: Special Section LETTER (Special Section on Information Theory and Its Applications) Category: Keyword: ternary sequence, zero-correlation zone, perfect sequence, odd-perfect sequence,
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Zero-Correlation Zone Sequence Set Constructed from a Perfect Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2007/05/01 Vol. E90-A No. 5 pp. 1107-1111 Type of Manuscript: LETTER Category: Coding Theory Keyword: sequence design, spreading sequence, CDMA communication, zero-correlation zone, perfect sequence,
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Binary Zero-Correlation Zone Sequence Set Construction Using a Cyclic Hadamard Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/10/01 Vol. E89-A No. 10 pp. 2649-2655 Type of Manuscript: Special Section PAPER (Special Section on Information Theory and Its Applications) Category: Sequences Keyword: binary sequence, zero-correlation zone, cyclic difference set, cyclic Hadamard sequence, mutually orthogonal complementary sets,
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On Optimal Construction of Two Classes of ZCZ Codes Takafumi HAYASHI Shinya MATSUFUJI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/09/01 Vol. E89-A No. 9 pp. 2345-2350 Type of Manuscript: Special Section LETTER (Special Section on Sequence Design and its Application in Communications) Category: Keyword: sequence design, spreading sequence, CDMA communication, zero correlation zone,
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Ternary Sequence Set Having Periodic and Aperiodic Zero-Correlation Zone Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/06/01 Vol. E89-A No. 6 pp. 1825-1831 Type of Manuscript: PAPER Category: Coding Theory Keyword: ternary sequence, finite-length sequence, zero-correlation zone, aperiodic correlation function, periodic correlation function,
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A Class of Two-Dimensional Signal Having a Flat Power Spectrum and a Low Peak Factor Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/02/01 Vol. E89-A No. 2 pp. 494-502 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: pseudo-white noise, peak factor, crest factor, perfect array,
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Binary Zero-Correlation Zone Sequence Set Constructed from an M-Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2006/02/01 Vol. E89-A No. 2 pp. 633-638 Type of Manuscript: LETTER Category: Coding Theory Keyword: binary sequence, zero-correlation zone, M-sequence, shift-register sequence,
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Binary Zero-Correlation Zone Sequence Set Construction Using a Primitive Linear Recursion Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/07/01 Vol. E88-A No. 7 pp. 2034-2038 Type of Manuscript: LETTER Category: Coding Theory Keyword: binary sequence, zero-correlation zone, M-sequence, shift-register sequence,
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Upper Bounds of the Correlation Functions of a Class of Binary Zero-Correlation-Zone Sequences Takafumi HAYASHI Takao MAEDA Satoshi OKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2005/03/01 Vol. E88-A No. 3 pp. 791-794 Type of Manuscript: LETTER Category: Coding Theory Keyword: zero-correlation, binary sequence, upper bounds,
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A Construction of Low-Peak-Factor Pseudo White Noise Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/12/01 Vol. E87-A No. 12 pp. 3429-3432 Type of Manuscript: LETTER Category: Digital Signal Processing Keyword: pseudo white noise, peak factor, crest factor,
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A Class of Low-Peak-Factor Pseudo White Noise Sequence Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/08/01 Vol. E87-A No. 8 pp. 1850-1854 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Theory of Signals Keyword: pseudo white noise, peak factor, crest factor,
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A Class of Ternary Sequence Sets with a Zero-Correlation Zone Takafumi HAYASHI Satoshi OKAWA
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/06/01 Vol. E87-A No. 6 pp. 1591-1598 Type of Manuscript: PAPER Category: Coding Theory Keyword: ternary sequence, finite-length sequence, zero-correlation zone, even correlation function, odd correlation function,
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A Generalization of Binary Zero-Correlation Zone Sequence Sets Constructed from Hadamard Matrices Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2004/01/01 Vol. E87-A No. 1 pp. 286-291 Type of Manuscript: LETTER Category: Coding Theory Keyword: binary sequence, zero-correlation zone, Hadamard matrices, sequence design,
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Ternary Array Set Having a Zero-Correlation Zone Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/08/01 Vol. E86-A No. 8 pp. 2163-2167 Type of Manuscript: LETTER Category: Coding Theory Keyword: ternary array, zero-correlation zone, aperiodic correlation function, periodic correlation function,
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A Class of Ternary Sequence Sets with a Zero-Correlation Zone for Periodic, Aperiodic, and Odd Correlation Functions Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2003/07/01 Vol. E86-A No. 7 pp. 1850-1857 Type of Manuscript: PAPER Category: Spread Spectrum Technologies and Applications Keyword: ternary sequence, finite-length sequence, zero-correlation zone, aperiodic correlation function, odd correlation function,
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Binary Sequences with Orthogonal Subsequences and a Zero-Correlation Zone: Pair-Preserving Shuffled Sequences Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2002/06/01 Vol. E85-A No. 6 pp. 1420-1425 Type of Manuscript: LETTER Category: Coding Theory Keyword: zero-correlation, binary sequence, spread spectrum communication, pseudo-noise, sequence design,
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The Synthesis of Low-Peak Orthogonal-Base-Set Sequences Using Trigonometric Function Aliasing Takafumi HAYASHI William L. MARTENS
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 2000/08/25 Vol. E83-A No. 8 pp. 1513-1522 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Theory of Signals Keyword: low peak factor, pseudo-white-noise, orthogonal base, spread spectrum communication, audio signal processing,
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The Synthesis of Low-Peak Cross-Correlation Sequences Using Trigonometric Function Aliasing Takafumi HAYASHI William L. MARTENS
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1999/08/25 Vol. E82-A No. 8 pp. 1402-1411 Type of Manuscript: Special Section PAPER (Special Section on Digital Signal Processing) Category: Keyword: low peak factor, pseudo white noise, cross-correlation, convolution Reed-Solomon code, spread spectrum communication,
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Synthesis of Low Peak-to-Peak Waveforms with Flat Spectra Takafumi HAYASHI
Publication: IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Publication Date: 1998/09/25 Vol. E81-A No. 9 pp. 1902-1908 Type of Manuscript: PAPER Category: Circuit Theory Keyword: low peak-to-peak factor waveform, DFT, white noise, multi-frequency, acoustical measurement,
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