Multiple constraint matched field processing tolerant to array tilt mismatch
Gihoon Byun, Franklin H. Akins, Kay L. Gemba, H. C. Song, W. A. Kuperman
Abstract
A multiple constraint method (MCM) specifically designed to accommodate the uncertainty of array tilt is developed for matched field processing (MFP). Combining the MCM with the white noise gain constraint method results in a processor that is tolerant to both array tilt and environmental mismatch. Experimental results verify the robustness of the proposed MFP to localize and track a surface ship radiating broadband noise (200-500 Hz), using a 56-m long vertical array with tilt in approximately 100-m deep shallow water.
Topics & Concepts
Tilt (camera)Robustness (evolution)Constraint (computer-aided design)BroadbandComputer scienceAcousticsWhite noiseNoise (video)Array processingSignal processingMathematicsTelecommunicationsPhysicsArtificial intelligenceGeometryBiochemistryRadarImage (mathematics)GeneChemistryUnderwater Acoustics ResearchUnderwater Vehicles and Communication SystemsGeophysical Methods and Applications