Separation of Sperm Whale Click-Trains for Multipath Rejection and Localization

• Main Author: Baggenstoss, Paul M.
• Other Authors: NAVAL UNDERSEA WARFARE CENTER DIV NEWPORT RI
• Format: Text
• Language: English
• Published: 2010
• Subjects: Biology; Miscellaneous Detection and Detectors; Acoustics; *ACOUSTIC DETECTION; *REJECTION; *UNDERWATER SOUND; *MULTISENSORS; *SIGNAL PROCESSING; *WHALES; MULTIPATH TRANSMISSION; HYDROPHONES; SEPARATION; ESTIMATES; ALGORITHMS; STATISTICAL ANALYSIS; *SPERM WHALE CLICKS; *SPERM WHALE VOCALIZATION; *MARINE MAMMALS; *LOCALIZATION; MULTISENSOR DATA; Cramer; Sperm whale
• Online Access: http://www.dtic.mil/docs/citations/ADA522496; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA522496

In this report, an algorithm is described for separation and grouping of sperm whale clicks received at a single hydrophone. The clicks are separated into click-trains from separate animals and separate propagation paths. The improvement possible in animal localization using multisensor data is then demonstrated. A localization algorithm is described that can handle multiple whales and that provides estimates of the Cramer-Rao lower bound for the position estimates. The original document contains color images. All DTIC reproductions will be in black and white.