Exploiting orientation information to improve range-based localization accuracy
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Data
2020
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IEEE Access
Resumo
This work addresses target localization problem in precarious surroundings where possibly no
links are line of sight. It exploits the known architecture of available reference points to act as an irregular
antenna array in order to estimate the azimuth angle between a reference point and a target, based on distance
estimates withdrawn from integrated received signal strength (RSS) and time of arrival (TOA) observations.
These ctitious azimuth angle observations are then used to linearize the measurement models, which
triggers effortless derivation of a new estimator in a closed-form. It is shown here that, by using xed network
geometry in which target orientation with respect to a line formed by a pair of anchors can be correctly
estimated, the localization performance can be signi cantly enhanced. The new approach is validated
through computer simulations, which corroborate our intuition of pro ting from inherent information within
a network.
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IEEE Access
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ENGENHARIA ELETROTÉCNICA, ELECTROTECHNICAL ENGINEERING, RECEIVED SIGNAL STRENGTH, RECEIVED SIGNAL STRENGTH, NON-LINE-OF-SIGHT, NON-LINE-OF-SIGHT, TIME OF ARRIVAL, TIME OF ARRIVAL