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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
O processamento convencional de antenas de arranjo adaptativo deve acessar sinais em todos os elementos de antena do arranjo. No entanto, como a antena de radiador de matriz passiva orientável eletronicamente (ESPAR) de baixo custo possui apenas uma saída de porta única, todos os sinais nos elementos da antena não podem ser observados. Neste artigo, é apresentada uma técnica para controlar adaptativamente as reatâncias carregadas nos radiadores passivos, formando assim feixes e nulos, para a antena ESPAR. O algoritmo adaptativo é baseado na teoria do gradiente mais íngreme, onde as reatâncias são perturbadas sequencialmente para determinar o vetor gradiente. Simulações mostram que a antena ESPAR pode ser adaptativa. O desempenho estatístico da saída SIR da antena ESPAR também é fornecido.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copiar
Jun CHENG, Yukihiro KAMIYA, Takashi OHIRA, "Adaptive Beamforming of ESPAR Antenna Based on Steepest Gradient Algorithm" in IEICE TRANSACTIONS on Communications,
vol. E84-B, no. 7, pp. 1790-1800, July 2001, doi: .
Abstract: Conventional adaptive array antenna processing must access signals on all of the array antenna elements. However, because the low-cost electronically steerable passive array radiator (ESPAR) antenna only has a single-port output, all of the signals on the antenna elements cannot be observed. In this paper, a technique for adaptively controlling the loaded reactances on the passive radiators, thus forming both beam and nulls, is presented for the ESPAR antenna. The adaptive algorithm is based on the steepest gradient theory, where the reactances are sequentially perturbed to determine the gradient vector. Simulations show that the ESPAR antenna can be adaptive. The statistical performance of the output SIR of the ESPAR antenna is also given.
URL: https://global.ieice.org/en_transactions/communications/10.1587/e84-b_7_1790/_p
Copiar
@ARTICLE{e84-b_7_1790,
author={Jun CHENG, Yukihiro KAMIYA, Takashi OHIRA, },
journal={IEICE TRANSACTIONS on Communications},
title={Adaptive Beamforming of ESPAR Antenna Based on Steepest Gradient Algorithm},
year={2001},
volume={E84-B},
number={7},
pages={1790-1800},
abstract={Conventional adaptive array antenna processing must access signals on all of the array antenna elements. However, because the low-cost electronically steerable passive array radiator (ESPAR) antenna only has a single-port output, all of the signals on the antenna elements cannot be observed. In this paper, a technique for adaptively controlling the loaded reactances on the passive radiators, thus forming both beam and nulls, is presented for the ESPAR antenna. The adaptive algorithm is based on the steepest gradient theory, where the reactances are sequentially perturbed to determine the gradient vector. Simulations show that the ESPAR antenna can be adaptive. The statistical performance of the output SIR of the ESPAR antenna is also given.},
keywords={},
doi={},
ISSN={},
month={July},}
Copiar
TY - JOUR
TI - Adaptive Beamforming of ESPAR Antenna Based on Steepest Gradient Algorithm
T2 - IEICE TRANSACTIONS on Communications
SP - 1790
EP - 1800
AU - Jun CHENG
AU - Yukihiro KAMIYA
AU - Takashi OHIRA
PY - 2001
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E84-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2001
AB - Conventional adaptive array antenna processing must access signals on all of the array antenna elements. However, because the low-cost electronically steerable passive array radiator (ESPAR) antenna only has a single-port output, all of the signals on the antenna elements cannot be observed. In this paper, a technique for adaptively controlling the loaded reactances on the passive radiators, thus forming both beam and nulls, is presented for the ESPAR antenna. The adaptive algorithm is based on the steepest gradient theory, where the reactances are sequentially perturbed to determine the gradient vector. Simulations show that the ESPAR antenna can be adaptive. The statistical performance of the output SIR of the ESPAR antenna is also given.
ER -