Abstract
A modeling study was undertaken to examine the potential benefit of adaptive matched field processing (AMFP) to the forward sector capability of single-line, twin-line, and volumetric arrays. Comparisons are made with conventional MFP (CMFP) and plane-wave beamforming (PWB) in order to assess the degree of ownship noise reduction obtainable and any corresponding improvement to the signal-to-noise ratio (SNR). A minimum variance distortionless response beamformer using dominant mode rejection was implemented, applied to both uniform and distorted array shapes. Significant improvement over CMFP and PWB in tracking and SNR was seen for modeled data in both cases, with the distorted array showing, not surprisingly, better left-right rejection capability. A brief investigation of the effects of environmental mismatch was undertaken in order to assess its potential impact on the value-added of AMFP. [Work was supported by the Defense Advanced Research Projects Agency, Advanced Technology Office.]
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