Adapting Towed-Array Tilt for Passive Detection Gain Based on Three-Dimensional Noise Field Directionality Estimates
Abstract
Abstract This project is aimed at improving passive towed-array performance by adaptive selection of towed-array tilt based on estimates of the 3-D noise field directionality. Currently, periods of maneuvers, where the array deviates from a nominally straight horizontal geometry are viewed as Òdown-timesÓ for passive sonar detection. The goal of this project is to utilize time in maneuvers to estimate the background 3-D noise field and then use this noise map to select the array tilt during nonmaneuvering periods that maximizes array gain and/or source localization accuracy. This work will thus enable the development of a tactical decision aid which produces advice regarding ship speed to maximize passive sonar performance for both scalar and vector-sensor towed arrays.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- May 22, 2016
- Source ID
- N000141512137
Entities
People
- David R. Smith
Organizations
- Duke University
- Office of Naval Research
- United States Navy