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• W2736334235 abstract "A method of array manifold calibration using one steering vector measured in a single direction is proposed. The phase information of the measured steering vector is used to derive a novel calibration matrix that is proposed to compensate for the relative phase distortion (RPD) at each antenna port. We also present a metric function defined as a standard deviation of the RPD to determine the optimum calibration angle, which provides intuition for the cause of the accuracy degradation in the direction-of-arrival estimation. To verify the feasibility, a seven-element circular array with identical microstrip patch antennas is fabricated for calibrating its array manifold using a single steering vector measured in a full anechoic chamber. The calibrated array manifold is then used to estimate the direction of arrival, and its accuracy is compared to the calibrated result obtained from the traditional least-squares method. The results demonstrate that the estimation error can be improved by 54.9° compared to the traditional least-squares method, when the number of measured steering vectors is extremely limited." @default.
• W2736334235 created "2017-07-31" @default.
• W2736334235 creator A5044783058 @default.
• W2736334235 creator A5052354904 @default.
• W2736334235 date "2017-09-01" @default.
• W2736334235 modified "2023-09-24" @default.
• W2736334235 title "A Novel Approach to Array Manifold Calibration Using Single-Direction Information for Accurate Direction-of-Arrival Estimation" @default.
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• W2736334235 doi "https://doi.org/10.1109/tap.2017.2731374" @default.
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