TY - RPRT
TI - Underwater Active Acoustic Monitoring Network For Marine And Hydrokinetic Energy Projects
AU - Stein, P
AU - Edson, P
AB - This project saw the completion of the design and development of a second generation, high frequency (90-120 kHz) Subsurface-Threat Detection Sonar Network (SDSN). The system was deployed, operated, and tested in Cobscook Bay, Maine near the site the Ocean Renewable Power Company TidGen™ power unit. This effort resulted in a very successful demonstration of the SDSN detection, tracking, localization, and classification capabilities in a high current, MHK environment as measured by results from the detection and tracking trials in Cobscook Bay. The new high frequency node, designed to operate outside the hearing range of a subset of marine mammals, was shown to detect and track objects of marine mammal-like target strength to ranges of approximately 500 meters. This performance range results in the SDSN system tracking objects for a significant duration - on the order of minutes - even in a tidal flow of 5-7 knots, potentially allowing time for MHK system or operator decision-making if marine mammals are present. Having demonstrated detection and tracking of synthetic targets with target strengths similar to some marine mammals, the primary hurdle to eventual automated monitoring is a dataset of actual marine mammal kinematic behavior and modifying the tracking algorithms and parameters which are currently tuned to human diver kinematics and classification.
DA - 2013/12//
PY - 2013
SP - 34
PB - Ocean Renewable Power Company (ORPC)
SN - DOE-SSI-0003639
UR - http://www.osti.gov/scitech/biblio/1113677
LA - English
KW - Marine Energy
KW - Noise
KW - Marine Mammals
ER -