Understanding the Performance of Frequency-Difference Source Localization Using Ocean Data and a Reliable Model of Internal Waves: A Collaboration
Abstract
"We propose to understand the role of internal waves in limiting the accuracy of Dowling s auto-product technique for locating remote unknown sound sources in the deep ocean. To date, limitations of this technique were simulated by adding random time delays to acoustic ray path contributions. We propose to employ Spiesberger s realistic models of internal wave fluctuations for simulating forward (source to array) acoustic fields with Tappert s c0-insensitive PE approximation and sound speed fields computed from the complete Garret-Munk spectrum. This model was previously used to show it replicated measured coherence times of sound over five ocean-basin sections without tuning with data. UPENNs involvement will fund a student to process software needed to evaluate the role of internal waves in limiting the accuracy of the auto-product technique."
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 29, 2020
- Source ID
- N000142012277
Entities
People
- John L. Spiesberger
Organizations
- Office of Naval Research
- United States Navy
- University of Pennsylvania