Measurement of Orientation and Distance Change using Circularly Polarized UWB Signals

TitleMeasurement of Orientation and Distance Change using Circularly Polarized UWB Signals
Publication TypeJournal Article
Year of Publication2022
AuthorsPrzewocki, J, Ammann, MJ, Narbudowicz, A
Journal TitleIEEE Transactions on Antennas and Propagation
Volume70
Issue6
Pagination4803-4809
Journal Date06/2022
Abstract

The article proposes methodology to use circularly polarized (CP) ultra-wideband (UWB) signals for simultaneous measurement of orientation and distance changes between transmitter and receiver. The proposed technique uses the rotational Doppler effect on CP pulsed communication. The amplitude of a CP signal is immune to polarization misalignment in the presence of rotation; however, the phase is subjected to a frequency-invariant shift proportional to the rotation angle. This significantly distorts the pulse shape in the time domain and can be used for the measurement of the rotated angle. By combining the technique with the well-known localization capability of UWB systems, one can precisely measure not only the distance but also the orientation. This is demonstrated by both numerical and experimental studies presented in this article.

URLhttps://ieeexplore.ieee.org/document/9669937
DOI10.1109/TAP.2022.3140500