Mid-Frequency Towed Acoustic Array
Abstract
Proposed is the acquisition of a mid-frequency towed acoustic array and fabrication of adata telemetry/recording system for bringin"g the digitized acoustic and engineeringsensor data back to the ship over the tow cable, recording the data for post-experimentana""lysis, and monitoring data quality during deployment. The towed array will consist of32-elements in a nested design corresponding t"o 21-elements with a half-wavelengthspacing at 6 kHz (0.125 m) and 22-elements with a half-wavelength spacing at 3 kHz(0.25 m). The overall acoustic aperture will be 5.25 m. The array will be capable ofreceiving in the 0.1-40 kHz frequency band (although its predominant use will be for 0.5-10 kHz data collection purposes). Included are 2 non-acoustic sensors at the head and tailof the arr"ay that measure heading, pitch, roll, temperature, and pressure/depth. The towedarray will add an important new capability for the"" collection of mid-frequency ambientnoise, propagation, and acoustic communication data.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Nov 03, 2017
- Source ID
- N000141713007
Entities
People
- William Hodgkiss
Organizations
- Office of Naval Research
- United States Navy
- University of California, San Diego