title: A particle filtering approach for spatial arrival time tracking in ocean acoustics.
abstract: The focus of this work is on arrival time and amplitude estimation from acoustic signals recorded at spatially separated hydrophones in the ocean. A particle filtering approach is developed that treats arrival times as "targets" and tracks their "location" across receivers, also modeling arrival time gradient. The method is evaluated via Monte Carlo simulations and is compared to a maximum likelihood estimator, which does not relate arrivals at neighboring receivers. The comparison demonstrates a significant advantage in using the particle filter. It is also shown that posterior probability density functions of times and amplitudes become readily available with particle filtering.
authors.affiliation: Department of Mathematical Sciences, New Jersey Institute of Technology, Newark, New Jersey 07102, USA. rj45@njit.edu
authors.forename: Rashi
authors.initials: R
authors.lastname: Jain
authors.forename: Zoi-Heleni
authors.initials: ZH
authors.lastname: Michalopoulou
mesh_terms: D000162:Acoustics / Q000295:instrumentation; D003198:Computer Simulation; D008962:Models, Theoretical; D009010:Monte Carlo Method; D009038:Motion; D009792:Oceans and Seas; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014160:Transducers, Pressure; D014867:Water
chemical_list: D014867:Water