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
Une méthode d'étalonnage des erreurs de phase et de gain de capteur hors ligne pour un réseau linéaire utilisant une source située dans un emplacement inconnu est proposée. La méthode proposée est réalisée en trois étapes. Premièrement, sur la base de la matrice de covariance observée, nous construisons une fonction liée à la direction, et il est prouvé que lorsque la fonction prend la valeur minimale, la valeur correspondante doit être la direction de la source d'étalonnage. Deuxièmement, la direction de la source d'étalonnage est estimée en localisant la vallée à partir de la fonction construite. Troisièmement, les erreurs de phase de gain sont obtenues sur la base de la direction estimée. La méthode proposée offre de nombreux avantages. Premièrement, une mesure précise de la direction de la source d’étalonnage n’est pas requise. Deuxièmement, une seule source d’étalonnage doit être configurée. Troisièmement, cela ne nécessite pas de procédure itérative ni de recherche spectrale bidimensionnelle (2D). Quatrièmement, la méthode est applicable aux réseaux linéaires, et pas seulement aux réseaux linéaires uniformes (ULA). Des simulations numériques sont présentées pour vérifier l'efficacité de la méthode proposée.
Zheng DAI
Nanjing University of Science and Technology
Weimin SU
Nanjing University of Science and Technology
Hong GU
Nanjing University of Science and Technology
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Zheng DAI, Weimin SU, Hong GU, "A Calibration Method for Linear Arrays in the Presence of Gain-Phase Errors" in IEICE TRANSACTIONS on Fundamentals,
vol. E103-A, no. 6, pp. 841-844, June 2020, doi: 10.1587/transfun.2019EAL2160.
Abstract: An offline sensor gain-phase errors calibration method for a linear array using a source in unknown location is proposed. The proposed method is realized through three steps. First, based on the observed covariance matrix, we construct a function related to direction, and it is proved that when the function takes the minimum value, the corresponding value should be the direction of the calibration source. Second, the direction of calibration source is estimated by locating the valley from the constructed function. Third, the gain-phase errors are obtained based on the estimated direction. The proposed method offers a number of advantages. First, the accurate direction measurement of the calibration source is not required. Second, only one calibration source needs to be arranged. Third, it does not require an iterative procedure or a two-dimensional (2D) spectral search. Fourth, the method is applicable to linear arrays, not only to uniform linear arrays (ULAs). Numerical simulations are presented to verify the efficacy of the proposed method.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2019EAL2160/_p
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@ARTICLE{e103-a_6_841,
author={Zheng DAI, Weimin SU, Hong GU, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Calibration Method for Linear Arrays in the Presence of Gain-Phase Errors},
year={2020},
volume={E103-A},
number={6},
pages={841-844},
abstract={An offline sensor gain-phase errors calibration method for a linear array using a source in unknown location is proposed. The proposed method is realized through three steps. First, based on the observed covariance matrix, we construct a function related to direction, and it is proved that when the function takes the minimum value, the corresponding value should be the direction of the calibration source. Second, the direction of calibration source is estimated by locating the valley from the constructed function. Third, the gain-phase errors are obtained based on the estimated direction. The proposed method offers a number of advantages. First, the accurate direction measurement of the calibration source is not required. Second, only one calibration source needs to be arranged. Third, it does not require an iterative procedure or a two-dimensional (2D) spectral search. Fourth, the method is applicable to linear arrays, not only to uniform linear arrays (ULAs). Numerical simulations are presented to verify the efficacy of the proposed method.},
keywords={},
doi={10.1587/transfun.2019EAL2160},
ISSN={1745-1337},
month={June},}
Copier
TY - JOUR
TI - A Calibration Method for Linear Arrays in the Presence of Gain-Phase Errors
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 841
EP - 844
AU - Zheng DAI
AU - Weimin SU
AU - Hong GU
PY - 2020
DO - 10.1587/transfun.2019EAL2160
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E103-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2020
AB - An offline sensor gain-phase errors calibration method for a linear array using a source in unknown location is proposed. The proposed method is realized through three steps. First, based on the observed covariance matrix, we construct a function related to direction, and it is proved that when the function takes the minimum value, the corresponding value should be the direction of the calibration source. Second, the direction of calibration source is estimated by locating the valley from the constructed function. Third, the gain-phase errors are obtained based on the estimated direction. The proposed method offers a number of advantages. First, the accurate direction measurement of the calibration source is not required. Second, only one calibration source needs to be arranged. Third, it does not require an iterative procedure or a two-dimensional (2D) spectral search. Fourth, the method is applicable to linear arrays, not only to uniform linear arrays (ULAs). Numerical simulations are presented to verify the efficacy of the proposed method.
ER -