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
Neste artigo, apresentamos uma nova abordagem para o projeto de formadores de feixe de banda larga parcialmente adaptativos com o cancelador de lóbulo lateral generalizado (GSC) como estrutura subjacente. A abordagem projeta a matriz de bloqueio envolvida utilizando um conjunto de P-regular, Mfiltros wavelet de -banda, cuja propriedade de momento de fuga atende ao requisito de uma matriz de bloqueio na estrutura GSC. Além disso, com base na propriedade de decomposição de sub-bandas destes filtros wavelet, introduzimos um novo esquema dinâmico de seleção de sub-bandas sucedendo à matriz de bloqueio. O esquema retém apenas os principais componentes da subbanda das saídas da matriz de bloqueio com base em um teste de hipótese estatística prescrito e, assim, reduz ainda mais a dimensão dos pesos no processamento adaptativo. Como tal, a complexidade computacional global, que é ditada principalmente pela dimensão dos pesos adaptativos, é substancialmente reduzida. As simulações fornecidas mostram que esta nova abordagem oferece desempenho comparável aos formadores de feixe totalmente adaptativos existentes, mas com cálculos reduzidos.
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Yung-Yi WANG, Wen-Hsien FANG, "Wavelet-Based Broadband Beamformers with Dynamic Subband Selection" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 4, pp. 819-826, April 2000, doi: .
Abstract: In this paper, we present a new approach for the design of partially adaptive broadband beamformers with the generalized sidelobe canceller (GSC) as an underlying structure. The approach designs the blocking matrix involved by utilizing a set of P-regular, M-band wavelet filters, whose vanishing moment property is shown to meet the requirement of a blocking matrix in the GSC structure. Furthermore, basing on the subband decomposition property of these wavelet filters, we introduce a new dynamic subband selection scheme succeeding the blocking matrix. The scheme only retains the principal subband components of the blocking matrix outputs based on a prescribed statistical hypothesis test and thus further reduces the dimension of weights in adaptive processing. As such, the overall computational complexity, which is mainly dictated by the dimension of adaptive weights, is substantially reduced. The furnished simulations show that this new approach offers comparable performance as the existing fully adaptive beamformers but with reduced computations.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_4_819/_p
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@ARTICLE{e83-b_4_819,
author={Yung-Yi WANG, Wen-Hsien FANG, },
journal={IEICE TRANSACTIONS on Communications},
title={Wavelet-Based Broadband Beamformers with Dynamic Subband Selection},
year={2000},
volume={E83-B},
number={4},
pages={819-826},
abstract={In this paper, we present a new approach for the design of partially adaptive broadband beamformers with the generalized sidelobe canceller (GSC) as an underlying structure. The approach designs the blocking matrix involved by utilizing a set of P-regular, M-band wavelet filters, whose vanishing moment property is shown to meet the requirement of a blocking matrix in the GSC structure. Furthermore, basing on the subband decomposition property of these wavelet filters, we introduce a new dynamic subband selection scheme succeeding the blocking matrix. The scheme only retains the principal subband components of the blocking matrix outputs based on a prescribed statistical hypothesis test and thus further reduces the dimension of weights in adaptive processing. As such, the overall computational complexity, which is mainly dictated by the dimension of adaptive weights, is substantially reduced. The furnished simulations show that this new approach offers comparable performance as the existing fully adaptive beamformers but with reduced computations.},
keywords={},
doi={},
ISSN={},
month={April},}
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TY - JOUR
TI - Wavelet-Based Broadband Beamformers with Dynamic Subband Selection
T2 - IEICE TRANSACTIONS on Communications
SP - 819
EP - 826
AU - Yung-Yi WANG
AU - Wen-Hsien FANG
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2000
AB - In this paper, we present a new approach for the design of partially adaptive broadband beamformers with the generalized sidelobe canceller (GSC) as an underlying structure. The approach designs the blocking matrix involved by utilizing a set of P-regular, M-band wavelet filters, whose vanishing moment property is shown to meet the requirement of a blocking matrix in the GSC structure. Furthermore, basing on the subband decomposition property of these wavelet filters, we introduce a new dynamic subband selection scheme succeeding the blocking matrix. The scheme only retains the principal subband components of the blocking matrix outputs based on a prescribed statistical hypothesis test and thus further reduces the dimension of weights in adaptive processing. As such, the overall computational complexity, which is mainly dictated by the dimension of adaptive weights, is substantially reduced. The furnished simulations show that this new approach offers comparable performance as the existing fully adaptive beamformers but with reduced computations.
ER -