A Linear Estimator for Network Localization Using Integrated RSS and AOA Measurements
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Data
2019
Autores
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Editora
IEEE
The Society of Systematic Innovation
The Society of Systematic Innovation
Resumo
This letter addresses the problem of simultaneous
localization of multiple targets in three-dimensional cooperative
wireless sensor networks. To this end, integrated received signal
strength and angle of arrival measurements are employed. By exploiting
the convenient nature of spherical representation of the
considered problem, the measurement models are linearized and a
sub-optimal estimator is formulated. Unlike the maximum likelihood
estimator, which is highly non-convex and difficult to tackle
directly, the derived estimator is quadratic and has a closed-form
solution. Its computational complexity is linear in the number of
connections and its accuracy surpasses the accuracy of existing
ones in all considered scenarios.
Descrição
IEEE Signal Processing Letters
Palavras-chave
RECEIVED SIGNAL STRENGTH, ANGLE OF ARRIVAL, ENGENHARIA ELETROTÉCNICA, ELECTROTECHNICAL ENGINEERING, REGRESSÕES LINEARES, LINEAR REGRESSIONS, RECEIVED SIGNAL STRENGTH, ANGLE OF ARRIVAL