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VERSION:2.0
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PRODID:iCalendar-Ruby
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CATEGORIES:Academic Calendar,Lectures & Conferences
DESCRIPTION:Title:  Listening to the ocean: solving inverse problems in und
 erwater acoustics  \n\nSpeaker: Prof. Zoi-Heleni Michalopoulou (Professor a
 nd Chair of Department of Mathematical Sciences\, New Jersey Institute of T
 echnology)\n\nAbstract:  Source localization and geoacoustic inversion are 
 of utmost importance in antisubmarine warfare and environmental monitoring.
   Matched-field processing is a method often employed to address these task
 s.  Matched-field inversion (MFI) is the process of maximizing a correlatio
 n measure between received data at an array of hydrophones and replica fiel
 ds calculated with a sound propagation model for a set of values for enviro
 nmental parameters as well as source range and depth. The values that produ
 ce the maximum correlation form the geoacoustic parameter and source locati
 on estimates.  In this presentation we discuss the mechanics of MFI and we 
 demonstrate improvements in performance by using Gaussian Process regressio
 n\; this enables dense sampling of the water column by introducing the conc
 ept of virtual receivers.  Although MFI can be shown to be\, in general\, h
 ighly successful\, it is\, under certain circumstances\, computationally in
 tensive and other approaches become more desirable for addressing inverse p
 roblems in ocean acoustics.  We will show cases when it is preferable to vi
 ew the problem from a different perspective and we will discuss an alternat
 ive methodology\, relying on linearization and sequential filtering.
DTEND:20240215T190000Z
DTSTAMP:20260312T072322Z
DTSTART:20240215T180000Z
GEO:25.759384;-80.371304
LOCATION:CP - Chemistry & Physics\, 107
SEQUENCE:0
SUMMARY:Listening to the ocean: solving inverse problems in underwater acou
 stics  with Zoi-Heleni Michalopoulou
UID:tag:localist.com\,2008:EventInstance_45615250519573
URL:https://calendar.fiu.edu/event/listening_to_the_ocean_solving_inverse_p
 roblems_in_underwater_acoustics_with_zoi-heleni_michalopoulou
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