Coherent Full-Duplex Double-Sided Two-Way Ranging and Velocity Measurement Between Separate Incoherent Radio Units

Journal article


Publication Details

Author(s): Gottinger M, Kirsch F, Gulden P, Vossiek M
Journal: IEEE Transactions on Microwave Theory and Techniques
Publication year: 2019
Volume: 67
Journal issue: 5
Pages range: 2045-2061
ISSN: 0018-9480
Language: English


Abstract

This paper presents a novel coherent full-duplex (FD) double-sided
two-way ranging (CFDDS-TWR) technique for wireless locating and velocity
measurement between separate radio units. The idea presented here is a
quantum leap in wireless locating since it enables coherent ranging,
continuous phase tracking, and velocity measurement between wireless
units that operate incoherently with separate low-cost crystal
oscillator clock sources. Frequency modulated continuous wave chirp
sequences are exchanged in a FD manner between two radio units. The
signals transmitted from two radio units are received, respectively, by
each of the two units and down-converted in a mixer with the receiver’s
own transmit signal to generate a beat signal in each unit. The two beat
signals are then processed together, after one beat signal is
transmitted to the partner unit. Phase coherent range and Doppler phase
measurements can be conducted between incoherent radio units. The
presented CFDDS-TWR technique also offers options for reducing
noise-like distortions caused by mixing the products of uncorrelated
phase noise. We show both analytically and experimentally that the
described compensation method reduces the noise level and enhances the
dynamic range of the ranging signals tremendously—as evidenced by an
improvement of around 24 dB in our results. These unique signal and
synchronization properties show that the CFDDS-TWR method is a highly
accurate measurement approach. Results acquired with a 24-GHz test
system in a 7- to 17-m range demonstrate a standard deviation in range
and velocity of 0.25 mm and 0.05 mm/s, respectively.


FAU Authors / FAU Editors

Gottinger, Michael
Lehrstuhl für Hochfrequenztechnik
Vossiek, Martin Prof. Dr.-Ing.
Lehrstuhl für Hochfrequenztechnik


External institutions with authors

Symeo GmbH
Technische Universität Clausthal


How to cite

APA:
Gottinger, M., Kirsch, F., Gulden, P., & Vossiek, M. (2019). Coherent Full-Duplex Double-Sided Two-Way Ranging and Velocity Measurement Between Separate Incoherent Radio Units. IEEE Transactions on Microwave Theory and Techniques, 67(5), 2045-2061. https://dx.doi.org/10.1109/TMTT.2019.2902553

MLA:
Gottinger, Michael, et al. "Coherent Full-Duplex Double-Sided Two-Way Ranging and Velocity Measurement Between Separate Incoherent Radio Units." IEEE Transactions on Microwave Theory and Techniques 67.5 (2019): 2045-2061.

BibTeX: 

Last updated on 2019-08-05 at 09:53