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

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

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

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.
Originalspracheenglisch
Titel2018 Asilomar Conference on Signals, Systems and Computers
Seiten525-531
DOIs
PublikationsstatusVeröffentlicht - 2018
VeranstaltungAsilomar Conference on Signals, Systems and Computers: ACSSC 2018 - Pacific Grove, USA / Vereinigte Staaten
Dauer: 28 Okt 201831 Okt 2018

Konferenz

KonferenzAsilomar Conference on Signals, Systems and Computers
LandUSA / Vereinigte Staaten
OrtPacific Grove
Zeitraum28/10/1831/10/18

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