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
Dans cet article, nous présentons une méthode pour analyser les performances en régime permanent d'un filtre coupe-bande IIR adaptatif à coefficient complexe qui est utile pour le rejet de multiples interférences à bande étroite provenant de signaux à large bande dans l'étalement de la modulation par déplacement de phase en quadrature (QPSK). systèmes de communication à spectre. Le filtre coupe-bande adaptatif basé sur l'algorithme de gradient simplifié est considéré. Des expressions analytiques ont été développées pour la moyenne conditionnelle et la variance de la sortie du filtre coupe-bande. Le facteur d'amélioration du rapport signal sur bruit est également obtenu, à partir duquel on peut conclure à la validité de l'utilisation du filtre coupe-bande. Enfin, les résultats de simulations informatiques sont présentés qui confirment les prédictions théoriques.
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Haiyun JIANG, Shotaro NISHIMURA, Takao HINAMOTO, "Steady-State Analysis of Complex Adaptive IIR Notch Filter and Its Application to QPSK Communication Systems" in IEICE TRANSACTIONS on Fundamentals,
vol. E85-A, no. 5, pp. 1088-1095, May 2002, doi: .
Abstract: In this paper, we present a method to analyze the steady-state performance of a complex coefficient adaptive IIR notch filter which is useful for the rejection of multiple narrow-band interferences from broad-band signals in quadrature phase shift keying (QPSK) spread-spectrum communication systems. The adaptive notch filter based on the simplified gradient algorithm is considered. Analytical expressions have been developed for the conditional mean and variance of notch filter output. The signal-to-noise ratio improvement factor is also obtained from which the validity of the use of the notch filter can be concluded. Finally, the results of computer simulations are shown which confirm the theoretical predictions.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/e85-a_5_1088/_p
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@ARTICLE{e85-a_5_1088,
author={Haiyun JIANG, Shotaro NISHIMURA, Takao HINAMOTO, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Steady-State Analysis of Complex Adaptive IIR Notch Filter and Its Application to QPSK Communication Systems},
year={2002},
volume={E85-A},
number={5},
pages={1088-1095},
abstract={In this paper, we present a method to analyze the steady-state performance of a complex coefficient adaptive IIR notch filter which is useful for the rejection of multiple narrow-band interferences from broad-band signals in quadrature phase shift keying (QPSK) spread-spectrum communication systems. The adaptive notch filter based on the simplified gradient algorithm is considered. Analytical expressions have been developed for the conditional mean and variance of notch filter output. The signal-to-noise ratio improvement factor is also obtained from which the validity of the use of the notch filter can be concluded. Finally, the results of computer simulations are shown which confirm the theoretical predictions.},
keywords={},
doi={},
ISSN={},
month={May},}
Copier
TY - JOUR
TI - Steady-State Analysis of Complex Adaptive IIR Notch Filter and Its Application to QPSK Communication Systems
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1088
EP - 1095
AU - Haiyun JIANG
AU - Shotaro NISHIMURA
AU - Takao HINAMOTO
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Fundamentals
SN -
VL - E85-A
IS - 5
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - May 2002
AB - In this paper, we present a method to analyze the steady-state performance of a complex coefficient adaptive IIR notch filter which is useful for the rejection of multiple narrow-band interferences from broad-band signals in quadrature phase shift keying (QPSK) spread-spectrum communication systems. The adaptive notch filter based on the simplified gradient algorithm is considered. Analytical expressions have been developed for the conditional mean and variance of notch filter output. The signal-to-noise ratio improvement factor is also obtained from which the validity of the use of the notch filter can be concluded. Finally, the results of computer simulations are shown which confirm the theoretical predictions.
ER -