title: Processing advances for localization of beaked whales using time difference of arrival.
abstract: This paper is concerned with the localization of clicking Blainville's beaked whales (Mesoplodon densirostris) using an array of widely spaced bottom-mounted hydrophones. A set of signal and data processing advances are presented that together make reliable tracking a possibility. These advances include a species-specific detector, elimination of spurious time-difference-of-arrival (TDOA) estimates, improved tracking of TDOA estimates, positive association of TDOA estimates using different hydrophone pairs, and joint localization of multiple whales. A key innovation in three of these advances is the principle of click-matching. The methods are demonstrated using real data.
authors.affiliation: Naval Undersea Warfare Center, 1176 Howell Street, Newport, Rhode Island 02841, USA. p.m.baggenstoss@ieee.org
authors.forename: Paul M
authors.initials: PM
authors.lastname: Baggenstoss
mesh_terms: D000162:Acoustics / Q000295:instrumentation*; D000465:Algorithms; D000818:Animals; D004455:Echolocation; D040362:Geographic Information Systems / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013018:Sound Spectrography / Q000295:instrumentation*; D013045:Species Specificity; D013223:Statistics as Topic; D013997:Time Factors; D014828:Vocalization, Animal; D014907:Whales