@inproceedings{ac04487996254caba7a9e6524b3a5cb5,
title = "Decentralized robust acoustic source localization with wireless sensor networks for heavy-tail distributed observations",
abstract = "In this work, an energy based acoustic source localization task in a wireless sensor network (WSN) is considered. Based on data gathered from field experiments, it is revealed that the acoustic energy gathered at sensor nodes exhibits a heavy-tail, non-Gaussian characteristic and should be fitted into a contaminated Gaussian model. This property renders conventional least square and maximum likelihood based location estimation methods ineffective. Leveraging the distributed, in-network processing nature of a WSN, a novel de-centralized robust acoustic source localization (DRASL) algorithm is proposed. With the DRASL, local sensor nodes receive sensor readings broadcast from neighboring sensors and independently compute local location estimates using a light-weight Iterative Nonlinear Reweighted Least Square (INRLS) algorithm. The local location estimate then will be relayed to a fusion center where the final location estimate is obtained as a weighted average of the local estimates. The potential advantage of this algorithm is validated using extensive simulation in a real-world operation scenario. It is show that its performance is superior than existing methods while promising to be more energy efficient.",
keywords = "Acoustic energy, Decentralized localization, Impulsive noise, M-estimate, Robustness, Wireless sensor networks",
author = "Yong Liu and Hu, {Yu Hen} and Quan Pan",
year = "2010",
doi = "10.1109/GLOCOM.2010.5683474",
language = "英语",
isbn = "9781424456383",
series = "GLOBECOM - IEEE Global Telecommunications Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2010 IEEE Global Telecommunications Conference, GLOBECOM 2010",
note = "53rd IEEE Global Communications Conference, GLOBECOM 2010 ; Conference date: 06-12-2010 Through 10-12-2010",
}