Source localisation can be achieved by employing the time-of-arrival (TOA) measurements between the source and several spatially separated sensors. A simple and accurate algorithm for TOA-based positioning in the presence of multipath propagation is presented. With the use of a pure reflector, the multipath TOA information can be effectively utilised. Simulation results show that the performance of the proposed method approaches the Cramér-Rao lower bound when the measurement errors are sufficiently small.
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Lui et al. (2010) studied this question.
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