The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
Cet article propose une nouvelle antenne réseau adaptative à formation de faisceaux numérique (DBFAAA) efficace dans les environnements à trajets multiples sévères dans lesquels les circuits de synchronisation et de synchronisation des porteuses ne peuvent pas fonctionner de manière idéale, ce qui entraîne une perte de contrôle de la DBFAAA. Le DBFAAA proposé comporte deux étapes. Dans le premier, le DBFAAA capture le signal souhaité et établit la synchronisation. Dans le second cas, le DBFAAA optimise la configuration du faisceau du signal. La configuration proposée utilise un faisceau de vecteur propre de valeur propre maximale lors de la formation de faisceau de la première étape. De plus, une ligne à retard à prises fractionnées (FS-TDL) avec des poids de prise réels, placée après le formateur de faisceau, est appliquée pour obtenir une synchronisation temporelle. Le comportement du DBFAAA proposé pour les données d'échantillonnage asynchrone est étudié et les résultats indiquent que la configuration proposée permet un échantillonnage asynchrone au niveau du convertisseur A/D. Un prototype du DBFAAA proposé permettant une communication de données en temps réel à 38 Mbps est présenté et les performances de transmission sont présentées.
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Yasushi TAKATORI, Keizo CHO, Kentaro NISHIMORI, Toshikazu HORI, "Adaptive Array Employing Eigenvector Beam of Maximum Eigenvalue and Fractionally-Spaced TDL with Real Tap" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 8, pp. 1678-1687, August 2000, doi: .
Abstract: This paper proposes a new digital beamforming adaptive array antenna (DBFAAA) that is effective in severe multipath environments in which timing and carrier synchronization circuits cannot function ideally resulting in the DBFAAA losing control. The proposed DBFAAA has two stages. In the first, the DBFAAA captures the desired signal and establishes synchronization. In the second, the DBFAAA optimizes the beam pattern of the signal. The proposed configuration employs an eigenvector beam of the maximum eigenvalue in the first stage beam-forming. In addition, a fractionally-spaced-tapped-delay-line (FS-TDL) with real tap weights, which is placed after the beam-former, is applied to achieve timing synchronization. The behavior of the proposed DBFAAA for asynchronous sampling data is investigated and the results indicate that the proposed configuration enables asynchronous sampling at the A/D converter. A prototype of the proposed DBFAAA achieving 38-Mbps real-time data communication is introduced and the transmission performance is shown.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_8_1678/_p
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@ARTICLE{e83-b_8_1678,
author={Yasushi TAKATORI, Keizo CHO, Kentaro NISHIMORI, Toshikazu HORI, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Array Employing Eigenvector Beam of Maximum Eigenvalue and Fractionally-Spaced TDL with Real Tap},
year={2000},
volume={E83-B},
number={8},
pages={1678-1687},
abstract={This paper proposes a new digital beamforming adaptive array antenna (DBFAAA) that is effective in severe multipath environments in which timing and carrier synchronization circuits cannot function ideally resulting in the DBFAAA losing control. The proposed DBFAAA has two stages. In the first, the DBFAAA captures the desired signal and establishes synchronization. In the second, the DBFAAA optimizes the beam pattern of the signal. The proposed configuration employs an eigenvector beam of the maximum eigenvalue in the first stage beam-forming. In addition, a fractionally-spaced-tapped-delay-line (FS-TDL) with real tap weights, which is placed after the beam-former, is applied to achieve timing synchronization. The behavior of the proposed DBFAAA for asynchronous sampling data is investigated and the results indicate that the proposed configuration enables asynchronous sampling at the A/D converter. A prototype of the proposed DBFAAA achieving 38-Mbps real-time data communication is introduced and the transmission performance is shown.},
keywords={},
doi={},
ISSN={},
month={August},}
Copier
TY - JOUR
TI - Adaptive Array Employing Eigenvector Beam of Maximum Eigenvalue and Fractionally-Spaced TDL with Real Tap
T2 - IEICE TRANSACTIONS on Communications
SP - 1678
EP - 1687
AU - Yasushi TAKATORI
AU - Keizo CHO
AU - Kentaro NISHIMORI
AU - Toshikazu HORI
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 8
JA - IEICE TRANSACTIONS on Communications
Y1 - August 2000
AB - This paper proposes a new digital beamforming adaptive array antenna (DBFAAA) that is effective in severe multipath environments in which timing and carrier synchronization circuits cannot function ideally resulting in the DBFAAA losing control. The proposed DBFAAA has two stages. In the first, the DBFAAA captures the desired signal and establishes synchronization. In the second, the DBFAAA optimizes the beam pattern of the signal. The proposed configuration employs an eigenvector beam of the maximum eigenvalue in the first stage beam-forming. In addition, a fractionally-spaced-tapped-delay-line (FS-TDL) with real tap weights, which is placed after the beam-former, is applied to achieve timing synchronization. The behavior of the proposed DBFAAA for asynchronous sampling data is investigated and the results indicate that the proposed configuration enables asynchronous sampling at the A/D converter. A prototype of the proposed DBFAAA achieving 38-Mbps real-time data communication is introduced and the transmission performance is shown.
ER -