Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays

Thomas Wilding; Stefan Josef Grebien; Erik Leitinger; Ulrich Mühlmann; Klaus Witrisal

doi:10.1109/ACSSC.2018.8645163

Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays

Thomas Wilding, Stefan Josef Grebien, Erik Leitinger, Ulrich Mühlmann, Klaus Witrisal

Institut für Signalverarbeitung und Sprachkommunikation (4420)

Publikation: Beitrag in Buch/Bericht/Konferenzband › Beitrag in einem Konferenzband › Begutachtung

Abstract

Highly accurate indoor positioning is still a hard problem due to interference caused by multipath propagation and the resulting high complexity of the infrastructure.
We focus on the possibility of exploiting information contained in specular multipath components (SMCs) to increase the positioning accuracy of the system and to reduce the required infrastructure, using a-priori information in form of a floor plan.
The system utilizes a single anchor equipped with array antennas and wideband signals to separate the SMCs.
We derive a closed form of the Cramer-Rao lower bound for array-based multipath-assisted positioning and examine the beneficial effect of spatial aliasing of antenna arrays on the achievable angular resolution and as a direct consequence onto the positioning accuracy.
It is shown that ambiguities, arising due to the aliasing, can be resolved by exploiting the information contained in SMCs. The theoretic results are validated by simulations.

Originalsprache	englisch
Titel	2018 Asilomar Conference on Signals, Systems and Computers
Seiten	525-531
DOIs	https://doi.org/10.1109/ACSSC.2018.8645163
Publikationsstatus	Veröffentlicht - 2018
Veranstaltung	Asilomar Conference on Signals, Systems and Computers: ACSSC 2018 - Pacific Grove, USA / Vereinigte Staaten Dauer: 28 Okt. 2018 → 31 Okt. 2018

Konferenz

Konferenz	Asilomar Conference on Signals, Systems and Computers
Land/Gebiet	USA / Vereinigte Staaten
Ort	Pacific Grove
Zeitraum	28/10/18 → 31/10/18

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10.1109/ACSSC.2018.8645163

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Wilding, T, Grebien, SJ, Leitinger, E, Mühlmann, U & Witrisal, K 2018, Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays. in 2018 Asilomar Conference on Signals, Systems and Computers. S. 525-531, Asilomar Conference on Signals, Systems and Computers, Pacific Grove, California, USA / Vereinigte Staaten, 28/10/18. https://doi.org/10.1109/ACSSC.2018.8645163

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title = "Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays",

abstract = "Highly accurate indoor positioning is still a hard problem due to interference caused by multipath propagation and the resulting high complexity of the infrastructure. We focus on the possibility of exploiting information contained in specular multipath components (SMCs) to increase the positioning accuracy of the system and to reduce the required infrastructure, using a-priori information in form of a floor plan. The system utilizes a single anchor equipped with array antennas and wideband signals to separate the SMCs. We derive a closed form of the Cramer-Rao lower bound for array-based multipath-assisted positioning and examine the beneficial effect of spatial aliasing of antenna arrays on the achievable angular resolution and as a direct consequence onto the positioning accuracy.It is shown that ambiguities, arising due to the aliasing, can be resolved by exploiting the information contained in SMCs. The theoretic results are validated by simulations.",

author = "Thomas Wilding and Grebien, {Stefan Josef} and Erik Leitinger and Ulrich M{\"u}hlmann and Klaus Witrisal",

year = "2018",

doi = "10.1109/ACSSC.2018.8645163",

language = "English",

pages = "525--531",

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T1 - Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays

AU - Wilding, Thomas

AU - Grebien, Stefan Josef

AU - Leitinger, Erik

AU - Mühlmann, Ulrich

AU - Witrisal, Klaus

PY - 2018

Y1 - 2018

N2 - Highly accurate indoor positioning is still a hard problem due to interference caused by multipath propagation and the resulting high complexity of the infrastructure. We focus on the possibility of exploiting information contained in specular multipath components (SMCs) to increase the positioning accuracy of the system and to reduce the required infrastructure, using a-priori information in form of a floor plan. The system utilizes a single anchor equipped with array antennas and wideband signals to separate the SMCs. We derive a closed form of the Cramer-Rao lower bound for array-based multipath-assisted positioning and examine the beneficial effect of spatial aliasing of antenna arrays on the achievable angular resolution and as a direct consequence onto the positioning accuracy.It is shown that ambiguities, arising due to the aliasing, can be resolved by exploiting the information contained in SMCs. The theoretic results are validated by simulations.

AB - Highly accurate indoor positioning is still a hard problem due to interference caused by multipath propagation and the resulting high complexity of the infrastructure. We focus on the possibility of exploiting information contained in specular multipath components (SMCs) to increase the positioning accuracy of the system and to reduce the required infrastructure, using a-priori information in form of a floor plan. The system utilizes a single anchor equipped with array antennas and wideband signals to separate the SMCs. We derive a closed form of the Cramer-Rao lower bound for array-based multipath-assisted positioning and examine the beneficial effect of spatial aliasing of antenna arrays on the achievable angular resolution and as a direct consequence onto the positioning accuracy.It is shown that ambiguities, arising due to the aliasing, can be resolved by exploiting the information contained in SMCs. The theoretic results are validated by simulations.

U2 - 10.1109/ACSSC.2018.8645163

DO - 10.1109/ACSSC.2018.8645163

M3 - Conference paper

SP - 525

EP - 531

BT - 2018 Asilomar Conference on Signals, Systems and Computers

T2 - Asilomar Conference on Signals, Systems and Computers

Y2 - 28 October 2018 through 31 October 2018

ER -

Single-Anchor, Multipath-Assisted Indoor Positioning with Aliased Antenna Arrays

Abstract

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