Modeling of precise indoor positioning system

Zaplatilek, Ludek; Pola, Marek; Bezoušek, Pavel

doi:10.1109/comite.2015.7120322

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“…The system we have developed, uses wideband OFDM signal for accurate measurement of the signals arrival times sent by a transmitter and detected by several receiver stations placed outside the monitored area [1]. The transmitter location is then determined by the TDOA method [1].…”

Section: Introductionmentioning

confidence: 99%

Pseudorange error analysis for precise indoor positioning system

Pola

Bezoušek

2017

Journal of Electrical Engineering

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There is a currently developed system of a transmitter indoor localization intended for fire fighters or members of rescue corps. In this system the transmitter of an ultra-wideband orthogonal frequency-division multiplexing signal position is determined by the time difference of arrival method. The position measurement accuracy highly depends on the directpath signal time of arrival estimation accuracy which is degraded by severe multipath in complicated environments such as buildings. The aim of this article is to assess errors in the direct-path signal time of arrival determination caused by multipath signal propagation and noise. Two methods of the direct-path signal time of arrival estimation are compared here: the cross correlation method and the spectral estimation method.

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Section: Introductionmentioning

confidence: 99%