Near-Field Monopulse DoA Estimation for Angle-Sensitive Proximity WiFi Readers

Near-Field Monopulse DoA Estimation for Angle-Sensitive Proximity WiFi Readers

We study the effect of close-proximity in the estimation of the Direction-of-Arrival (DoA) using a monopulse antenna array system, with application to angle-sensitive proximity WiFi readers. It is shown that in this scenario, it is necessary to consider near-field radiative effects to make an accura...

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Bibliographic Details
Main Authors: Jose Antonio Lopez-Pastor, Antonio Gomez-Alcaraz, David Canete-Rebenaque, Alejandro Santos Martinez-Sala, Jose Luis Gomez-Tornero
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Direction-of-arrival
monopulse system
near-field region
proximity detection
WiFi
Online Access:https://ieeexplore.ieee.org/document/8750867/
Description
Summary:We study the effect of close-proximity in the estimation of the Direction-of-Arrival (DoA) using a monopulse antenna array system, with application to angle-sensitive proximity WiFi readers. It is shown that in this scenario, it is necessary to consider near-field radiative effects to make an accurate angular estimation at short distances between the mobile terminal and the DoA proximity sensor. As a result, we define a range-dependent angular monopulse function, which provides a better DoA estimation in a Field of View of 60° and for distances ranging from 3 m to 50 cm.
ISSN:2169-3536

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