Building location awareness into acoustic communication links and networks through channel delay estimation

Authors:
João Gomes;Ehsan Zamanizadeh;José M. Bioucas-Dias;João Alves;Thomas C. Furfaro
Affiliations:
Technical University of Lisbon (UTL), Portugal;Technical University of Lisbon (UTL), Portugal;Technical University of Lisbon (UTL), Portugal;NATO Centre for Maritime Research and Experimentation, La Spezia, Italy;NATO Centre for Maritime Research and Experimentation, La Spezia, Italy
Venue:
Proceedings of the Seventh ACM International Conference on Underwater Networks and Systems
Year:
2012

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Abstract

This paper examines range-based localization techniques for single and multiple high-frequency underwater acoustic sources, such as those used in underwater communication systems. The emphasis is on developing flexible methods that accept range data from different origins and assimilate them into desired position estimates using compact optimization-based formulations that can scale to large problem sizes and require little or no prior information on the geometries of the acoustic links. The paper discusses how multipath information can be used for single-source localization, and how pairwise range measurements between network nodes can be used to jointly recover their relative positions through factorization of Euclidean distance matrices.