Experimental Noise Measurement System for Ship Sonar Design

Hull mounted sensor arrays are an important tool used to determine localized threat assessment. The location of these arrays on the ship is critical. They must be placed at the quietest location on the hull to minimize own-ship noise which can interfere with array sensitivity. To determine these quiet locations, Adaptive Methods has proposed incorporating vector sensing modules which can be temporarily attached to the outside of the hull at any desired location. These modules will determine noise source location, direction and frequency data. Once post processing of multiple devices at multiple locations is complete, a spectral map of the hull will be created. The Navy will then use this spectral map to determine the best location for the hull mounted sensor arrays.