Likelihood Consensus-Based Distributed Particle Filtering with Distributed Proposal Density Adaptation

Details Likelihood Consensus-Based Distributed Particle Filtering with Distributed Proposal Density Adaptation Likelihood Consensus-Based Distributed Particle Filtering with Distributed Proposal Density Adaptation

2011-09-28

arxiv.org/abs/1109.6191v1

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We present a consensus-based distributed particle filter (PF) for wireless sensor networks. Each sensor runs a local PF to compute a global state estimate that takes into account the measurements of all sensors. The local PFs use the joint (all-sensors) likelihood function, which is calculated in a distributed way by a novel generalization of the likelihood consensus scheme. A performance improvement (or a reduction of the required number of particles) is achieved by a novel distributed, consensus-based method for adapting the proposal densities of the local PFs. The performance of the proposed distributed PF is demonstrated for a target tracking problem.

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