MAMBAT (Multiple-Animal Model-Based Acoustic Tracking): Improving underwater passive acoustic multi-
Abstract
Model-based localization and tracking methods provide an effective way to incorporate environmental uncertainties to estimated posit,ion uncertainty and bounds when working in propagation-dependent environments. Established localization approaches exist in cases of, single calling animals, or in cases where the call classification and association of the same call on different hydrophones can be,readily achieved. However, cases with multiple calling animals with calls that cannot be associated still pose a significant challen,ge for tracking algorithms. The problem is further complicated by false alarms and missed detections. Several localization approache,s have been proposed for such cases, but most still rely on source separation/ call association steps and are computationally demand,ing.The overall goal of the proposed research is to improve model-based passive acoustic methods for tracking multiple marine mammal,s, and to apply methods to new and challenging practical scenarios. Specifically we aim to develop and integrate a non-traditional m,ulti-target tracking framework based on random finite sets to advance multiple-animal model-based methods. We aim to automate simult,aneous tracking of multiple sources with diverse characteristics (broadband and narrowband), without requiring prior association, cl,assification or source separation steps. The framework will be computationally efficient and will incorporate missed detections, fal,se alarms, and source appearance and disappearance in the problem formulation. While the ultimate aim is to develop framework that i,s platform agnostic, method development will motivated by, tested on, and applied to large bottom mounted arrays (AUTEC and PMRF) an,d drifting 2-element vertical arrays (DASBRS).
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Oct 06, 2022
- Source ID
- N000142212772
Entities
People
- Eva-Marie Nosal
Organizations
- Office of Naval Research
- United States Navy
- University of Hawaiʻi System