Influence of particle filter parameters on error correction accuracy in traffic surveillance using sensor networks

Location estimation is an important part of a traffic surveillance system. Markov chain Monte Carlo methods based on particle filters have proved to be an effective solution in sensing error correction. We investigate in this paper the influence of particle filter parameters variation on sensing errors correction accuracy. Considered traffic surveillance system is based on a wireless sensor network. Several forms of probability density matrix and various methods for particle weight computation where considered, allowing us to find the dependencies between parameters. Finally, we use simulation to find optimal solutions in different traffic conditions.