On the unimportance of phase-coherent measurements for beampattern-assisted positioning

Josef Kulmer; Stefan Grebien; Michael Rath; Klaus Witrisal

doi:10.1109/WCNC.2018.8377443

On the unimportance of phase-coherent measurements for beampattern-assisted positioning

Josef Kulmer, Stefan Grebien, Michael Rath, Klaus Witrisal

Institute of Signal Processing and Speech Communication (4420)

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Abstract

Accurate indoor radio positioning requires high-resolution measurements to either utilize or mitigate the impact of multipath propagation. This high resolution can be achieved using large signal-bandwidth, leading to superior time resolution and / or multiple antennas, leading to additional angle resolution. To facilitate multiple antennas, phase-coherent measurements are typically necessary. In this work we propose to employ non-phase-coherent measurements obtained from directional antennas for accurate single-anchor indoor positioning. The derived algorithm exploits beampatterns to jointly estimate multipath amplitudes to be used in maximum likelihood position estimation. Our evaluations based on measured and computer generated data demonstrate only a minor degradation in comparison to a phase-coherent processing scheme.

Original language	English
Title of host publication	2018 IEEE Wireless Communications and Networking Conference, WCNC 2018
Publisher	Institute of Electrical and Electronics Engineers
Pages	1-6
Number of pages	6
Volume	2018-April
ISBN (Electronic)	9781538617342
DOIs	https://doi.org/10.1109/WCNC.2018.8377443
Publication status	Published - 8 Jun 2018
Event	2018 IEEE Wireless Communications and Networking Conference: WCNC 2018 - Barcelona, Spain Duration: 15 Apr 2018 → 18 Apr 2018

Conference

Conference	2018 IEEE Wireless Communications and Networking Conference
Country/Territory	Spain
City	Barcelona
Period	15/04/18 → 18/04/18

ASJC Scopus subject areas

General Engineering

Access to Document

10.1109/WCNC.2018.8377443

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On the unimportance of phase-coherent measurements for beampattern-assisted positioning. / Kulmer, Josef; Grebien, Stefan; Rath, Michael et al.
2018 IEEE Wireless Communications and Networking Conference, WCNC 2018. Vol. 2018-April Institute of Electrical and Electronics Engineers, 2018. p. 1-6.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › peer-review

Kulmer, J, Grebien, S, Rath, M & Witrisal, K 2018, On the unimportance of phase-coherent measurements for beampattern-assisted positioning. in 2018 IEEE Wireless Communications and Networking Conference, WCNC 2018. vol. 2018-April, Institute of Electrical and Electronics Engineers, pp. 1-6, 2018 IEEE Wireless Communications and Networking Conference, Barcelona, Spain, 15/04/18. https://doi.org/10.1109/WCNC.2018.8377443

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AB - Accurate indoor radio positioning requires high-resolution measurements to either utilize or mitigate the impact of multipath propagation. This high resolution can be achieved using large signal-bandwidth, leading to superior time resolution and / or multiple antennas, leading to additional angle resolution. To facilitate multiple antennas, phase-coherent measurements are typically necessary. In this work we propose to employ non-phase-coherent measurements obtained from directional antennas for accurate single-anchor indoor positioning. The derived algorithm exploits beampatterns to jointly estimate multipath amplitudes to be used in maximum likelihood position estimation. Our evaluations based on measured and computer generated data demonstrate only a minor degradation in comparison to a phase-coherent processing scheme.

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On the unimportance of phase-coherent measurements for beampattern-assisted positioning

Abstract

Conference

ASJC Scopus subject areas

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