Low-Complexity Adaptive Sonar Imaging

We have studied the low-complexity adaptive (LCA) beamformer in active sonar imaging. LCA can be viewed as either a simplification of the minimum variance distortionless response (MVDR) beamformer, or as an adaptive extension to the delay-and-sum (DAS) beamformer. While both LCA and MVDR attempt to...

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Veröffentlicht in:	IEEE journal of oceanic engineering 2017-01, Vol.42 (1), p.87-96
Hauptverfasser:	Buskenes, Jo Inge, Hansen, Roy Edgar, Austeng, Andreas
Format:	Artikel
Sprache:	eng
Schlagworte:	Active active filters Active sonar adaptive beamforming adaptive filters Amplitude Array signal processing Arrays beamforming Complexity computational complexity Confidence intervals Covariance matrices Image resolution Imaging LCA MVDR phased arrays Robustness Sonar Sound waves spatial filters Steering Surveying underwater Underwater cameras
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