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
La technique de mesure d'antenne sans phase est avantageuse pour les mesures haute fréquence en champ proche dans lesquelles l'incertitude de la phase mesurée pose problème. Dans la mesure sans phase, qui devrait être utilisée dans la bande de fréquences à courte longueur d'onde, une légère erreur de déviation de position de la sonde détériore considérablement le résultat de la mesure. Cet article propose une méthode de récupération de phase capable de compenser les erreurs de mesure causées par le désalignement d'une sonde et de son gabarit. Et cet article propose une méthode d'estimation en champ lointain par résurrection de phase qui intègre les techniques de compensation. Nous constatons que les erreurs de positionnement sont dues aux erreurs aléatoires se produisant à chaque point de mesure en raison des infimes vibrations de la sonde ; de plus, nous déterminons que les erreurs de profondeur stationnaires se produisant au niveau de chaque surface de mesure sont des erreurs provoquées par un mauvais réglage du gabarit de sonde. L'erreur de positionnement aléatoire est éliminée par l'ajout d'un filtre passe-bas dans l'espace des nombres d'onde, et l'erreur de positionnement en profondeur est compensée de manière itérative sur la base du résidu relatif obtenu dans chaque plan. La validité de la méthode proposée est démontrée par l'estimation des modèles de champ lointain à l'aide des résultats de simulations numériques, ainsi que par l'utilisation de données de mesure avec erreur de positionnement de la sonde. La méthode proposée peut réduire l'erreur de positionnement de la sonde et améliorer la précision de l'estimation en champ lointain de plus de 10 dB.
Yoshiki SUGIMOTO
Yokohama National University
Hiroyuki ARAI
Yokohama National University
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Yoshiki SUGIMOTO, Hiroyuki ARAI, "A Phase Retrieval Method with Probe-Positioning Error Compensation for Phaseless Near-Field Measurements" in IEICE TRANSACTIONS on Communications,
vol. E104-B, no. 1, pp. 55-63, January 2021, doi: 10.1587/transcom.2019EBP3264.
Abstract: The phaseless antenna measurement technique is advantageous for high-frequency near-field measurements in which the uncertainty of the measured phase is a problem. In the phaseless measurement, which is expected to be used in the frequency band with a short wavelength, a slight positional deviation error of the probe greatly deteriorates the measurement result. This paper proposes a phase retrieval method that can compensate the measurement errors caused by misalignment of a probe and its jig. And this paper proposes a far-field estimation method by phase resurrection that incorporated the compensation techniques. We find that the positioning errors are due to the random errors occurring at each measurement point because of minute vibrations of the probe; in addition, we determine that the stationary depth errors occurring at each measurement surface as errors caused by improper setting of the probe jig. The random positioning error is eliminated by adding a low-pass filter in wavenumber space, and the depth positioning error is iteratively compensated on the basis of the relative residual obtained in each plane. The validity of the proposed method is demonstrated by estimating the far-field patterns using the results from numerical simulations, and is also demonstrated using measurement data with probe-positioning error. The proposed method can reduce the probe-positioning error and improve the far-field estimation accuracy by more over than 10 dB.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019EBP3264/_p
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@ARTICLE{e104-b_1_55,
author={Yoshiki SUGIMOTO, Hiroyuki ARAI, },
journal={IEICE TRANSACTIONS on Communications},
title={A Phase Retrieval Method with Probe-Positioning Error Compensation for Phaseless Near-Field Measurements},
year={2021},
volume={E104-B},
number={1},
pages={55-63},
abstract={The phaseless antenna measurement technique is advantageous for high-frequency near-field measurements in which the uncertainty of the measured phase is a problem. In the phaseless measurement, which is expected to be used in the frequency band with a short wavelength, a slight positional deviation error of the probe greatly deteriorates the measurement result. This paper proposes a phase retrieval method that can compensate the measurement errors caused by misalignment of a probe and its jig. And this paper proposes a far-field estimation method by phase resurrection that incorporated the compensation techniques. We find that the positioning errors are due to the random errors occurring at each measurement point because of minute vibrations of the probe; in addition, we determine that the stationary depth errors occurring at each measurement surface as errors caused by improper setting of the probe jig. The random positioning error is eliminated by adding a low-pass filter in wavenumber space, and the depth positioning error is iteratively compensated on the basis of the relative residual obtained in each plane. The validity of the proposed method is demonstrated by estimating the far-field patterns using the results from numerical simulations, and is also demonstrated using measurement data with probe-positioning error. The proposed method can reduce the probe-positioning error and improve the far-field estimation accuracy by more over than 10 dB.},
keywords={},
doi={10.1587/transcom.2019EBP3264},
ISSN={1745-1345},
month={January},}
Copier
TY - JOUR
TI - A Phase Retrieval Method with Probe-Positioning Error Compensation for Phaseless Near-Field Measurements
T2 - IEICE TRANSACTIONS on Communications
SP - 55
EP - 63
AU - Yoshiki SUGIMOTO
AU - Hiroyuki ARAI
PY - 2021
DO - 10.1587/transcom.2019EBP3264
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E104-B
IS - 1
JA - IEICE TRANSACTIONS on Communications
Y1 - January 2021
AB - The phaseless antenna measurement technique is advantageous for high-frequency near-field measurements in which the uncertainty of the measured phase is a problem. In the phaseless measurement, which is expected to be used in the frequency band with a short wavelength, a slight positional deviation error of the probe greatly deteriorates the measurement result. This paper proposes a phase retrieval method that can compensate the measurement errors caused by misalignment of a probe and its jig. And this paper proposes a far-field estimation method by phase resurrection that incorporated the compensation techniques. We find that the positioning errors are due to the random errors occurring at each measurement point because of minute vibrations of the probe; in addition, we determine that the stationary depth errors occurring at each measurement surface as errors caused by improper setting of the probe jig. The random positioning error is eliminated by adding a low-pass filter in wavenumber space, and the depth positioning error is iteratively compensated on the basis of the relative residual obtained in each plane. The validity of the proposed method is demonstrated by estimating the far-field patterns using the results from numerical simulations, and is also demonstrated using measurement data with probe-positioning error. The proposed method can reduce the probe-positioning error and improve the far-field estimation accuracy by more over than 10 dB.
ER -