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...

Full description

Saved in:
Bibliographic Details
Published in:IEEE access 2019, Vol.7, p.88450-88460
Main Authors: Lopez-Pastor, Jose Antonio, Gomez-Alcaraz, Antonio, Canete-Rebenaque, David, Martinez-Sala, Alejandro Santos, Gomez-Tornero, Jose Luis
Format: Article
Language:English
Subjects:
Antenna arrays
Antenna radiation patterns
Direction of arrival
Direction-of-arrival estimation
Directive antennas
Distance measurement
Estimation
Field of view
Monopulse antennas
monopulse system
Near fields
near-field region
Proximity
proximity detection
WiFi
Wireless fidelity
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
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
2169-3536
DOI:10.1109/ACCESS.2019.2925739