MMOS ’07 and Sirena ’08 Analysis Report

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Authors
  1. Hood, J.D.
  2. Bougher, B.
Corporate Authors
Defence R&D Canada - Atlantic, Dartmouth NS (CAN);Akoostix Inc, Dartmouth NS (CAN)
Abstract
Marine-mammal monitoring is a difficult task. Systems are required to perform well over a localized area when used for real-time environmental mitigation. Systems can also be tasked to conduct marine-mammal surveys over a much wider area to derive more general information, such as density estimates by region and species. The algorithms used to automate processing and analyses are relatively new and require more study to understand their performance, and to invent better methods. The systems themselves also need to be studied to generate better solutions, while understanding current performance. This report documents a significant marine-mammal data analysis effort, the largest conducted by DRDC to date, that spans two trials: MMOS ‘07/CFAV Quest Cruise Q302 and Sirena’08. The analysis results will be published in a separate report. During the contract, analysts examined over eight days of recorded data using both manual analysis and automated detection processing. The automated detections were then compared to the manual results to derive high-level valid detection and false-alarm statistics. The analysis also revealed a number of interesting data samples that were further analyzed, as they represent difficult or special cases for automation. Finally, the performance of the two systems that recorded the data (sonobuoys and Slocum gliders fitted with acoustic sensors) was analyzed in the context of marine-mammal recording and automated detection processing.

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Report Number
DRDC-ATLANTIC-CR-2010-060 — Contractor Report
Date of publication
01 Apr 2012
Number of Pages
70
DSTKIM No
CA036949
CANDIS No
536682
Format(s):
Electronic Document(PDF)

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