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

Institute of Signal Processing and Speech Communication (4420)

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

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.

Original language	English
Title of host publication	2018 Asilomar Conference on Signals, Systems and Computers
Pages	525-531
DOIs	https://doi.org/10.1109/ACSSC.2018.8645163
Publication status	Published - 2018
Event	Asilomar Conference on Signals, Systems and Computers: ACSSC 2018 - Pacific Grove, United States Duration: 28 Oct 2018 → 31 Oct 2018

Conference

Conference	Asilomar Conference on Signals, Systems and Computers
Country/Territory	United States
City	Pacific Grove
Period	28/10/18 → 31/10/18

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10.1109/ACSSC.2018.8645163

Cite this

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. pp. 525-531, Asilomar Conference on Signals, Systems and Computers, Pacific Grove, California, United States, 28/10/18. https://doi.org/10.1109/ACSSC.2018.8645163

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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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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

Conference

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