Faculty Profiles - YAMAZATO Takaya

Papers - YAMAZATO Takaya

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An Initial Acquisition Method for M-ary Spread-Spectrum Signals Using Hadamard Code Sequences Reviewed

WADA Tadahiro, YAMAZATO Takaya, KATAYAMA Masaaki, OGAWA Akira

IEICE Trans. Fundamentals Vol. 80 ( 11 ) page： 2172 - 2179 1997.11

Language：English Publishing type：Research paper (scientific journal) Publisher：The Institute of Electronics, Information and Communication Engineers

In this paper, we examine a new initial symbol acquisition method for M-ary spread-spectrum (M-ary/SS) signals that are affected by large carrier frequency offset. By the effect of the carrier frequency offset, preamble signal energy is dispersed to the undesired outputs. The proposed method is based on the collection of such dispersed signal energies by using reference patterns. The reference patterns are constructed by using the characteristic of Hadamard code sequences. The effectiveness of the proposed method is evaluated in terms of mean acquisition time.

CiNii Research

An initial acquisition method for M-ary spread-spectrum signals using Hadamard code sequences Reviewed

Wada T, Yamazato T, Katayama M, Ogawa A

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES Vol. E80A ( 11 ) page： 2172 - 2179 1997.11

An initial acquisition method for M-ary spread-spectrum signals using Hadamard code sequences Reviewed

T Wada, T Yamazato, M Katayama, A Ogawa

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES Vol. E80A ( 11 ) page： 2172 - 2179 1997.11

Language：English Publishing type：Research paper (scientific journal) Publisher：IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG

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Performance Analysis of the CDMA Unslotted ALOHA Systems with Finite Population and Fixed Packet Length

H. Okada, T. Yamazato, M. Katayama and A. Ogawa

1997 IEICE General Conference Vol. A-5-11 page： 112 1997.9

A Study on the Capacity of a Multi Processing-Gain SSMA System

L. Zhang, M. Katayama, T. Yamazato and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 59 ) page： 19-24 1997.9

A study on the performance of CDMA ALOHA system under a cellular environment

Y. Asai, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 57 ) page： 39275 1997.9

pi/2-shift BPSK - A modulation scheme robust to nonlinear amplification for CDMA mobile communications Reviewed

Kashyap K, Wada T, Katayama M, Yamazato T, Ogawa A

IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES Vol. E80A ( 9 ) page： 1634 - 1639 1997.9

A Study on Wireless Transmission of MPEG Encoded Image Signals Using DS/SS Modulation

S. Makido, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. DSP97 ( 66 ) page： 37-42 1997.7

A Study on CDMA-Unslotted ALOHA with Data Packets Over CDMA Voice Signals

A. Sandouk, T. Sato, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 27 ) page： 43-48 1997.7

A Modeling of the Noise for Power Line Communication Systems

O. Ohno, M. Katayama, T. Yamazato, and A. Ogawa

Technical Report of IEICE Vol. DSP97 ( 61 ) page： 39275 1997.7

Prospective Performance of LEO Satellite Systems Employing Spread-Spectrum Techniques

A. Jamalipour, M. Katayama, T. Yamazato, and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 18 ) page： 31-38 1997.6

Multi-Antenna Transmission Scheme for a Convolutionally Coded DS/CDMA System

K. Ban, M. Katayama, T. Yamazato, and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 1 ) page： 39088 1997.6

A Study on Orthogonal Multi-Code CDMA Systems Using Constant Amplitude Coding

T. Wada, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. RCS97 ( 35 ) page： 19-24 1997.6

Influence of Multiple-Access Interference in a Multi Processing-Gain SSMA System

H. Hiraiwa, M. Katayama, T. Yamazato, and A. Ogawa

Technical Report of IEICE Vol. SST97 ( 2 ) page： 39275 1997.6

Simultaneous Acquisition of DS/SS Signals with Doppler Shift in Multi-LEO-Satellite Communication Systems

M. Ishizu, M. Katayama, T. Yamazato, and A. Ogawa

Technical Report of IEICE Vol. SANE97 ( 6 ) page： 35-40 1997.4

An Initial Acquisition Method for Observing Ecology of Sea Animals Using LEO Satellite

T. Tokuyasu, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SANE97 ( 8 ) page： 45-50 1997.4

The Effect of Throughput Performance in the CDMA Unslotted ALOHA with Optimal Access Control Protocol by Access Timing Delay

H. Okada, T. Sato, T. Yamazato, M. Katayama and A. Ogawa

1997 IEICE General Conference Vol. B-5 ( 39 ) page： 426 1997.3

Throughput Analysis of CDMA-Unslotted ALOHA System With Voice and Data Packets

Abbas SANDOUK, Takeshi SATO, Takaya YAMAZATO, Masaaki KATAYAMA, and Akira OGAWA

1997 IEICE General Conference Vol. A-5-14 page： - 1997.3

An Integration of Voice and Data in CDMA Unslotted ALOHA with Channel Load Sensing

T. Sato, A. Sandouk, T. Yamazato, M. Katayama and A. Ogawa

Technical Report of IEICE Vol. SST96 ( 105 ) page： 43-48 1997.3

An Analytically Estimation of DS/SS/CDMA Using GMSK Reviewed

T. Ishiguro, T. Yamazato, M. Katayama, and A. Ogawa

IEICE Transaction on Communications Vol. J80-B-II ( 1 ) page： 131-136 1997.1

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