Exact Robust Solution to TW-ToA-Based Target Localization Problem With Clock Imperfections
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Data
2018
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IEEE
Resumo
This letter addresses the problem of target localization
based on two-way time of arrival (TW-ToA) measurements
with clock imperfections. In addition to the target location, the
turn-around times and clock skews are considered unknown. Since
an optimal estimator for this problem cannot be tackled directly,
we approximate it by a suboptimal, robust one, formulated as a
generalized trust region subproblem. Even though nonconvex in
general, exact solution of the derived estimator can be obtained by
just a bisection procedure. Simulation results validate the effectiveness
of the proposed technique, matching the performance of the
state of the art with significantly lower computational complexity.
Descrição
IEEE Signal Processing Letters
Palavras-chave
TIME OF ARRIVAL, ENGENHARIA ELETROTÉCNICA, ELECTROTECHNICAL ENGINEERING, TIME OF ARRIVAL