title: Experimental testing of the noise-canceling processor.
abstract: Signal-processing techniques for localizing an acoustic source buried in noise are tested in a tank experiment. Noise is generated using a discrete source, a bubble generator, and a sprinkler. The experiment has essential elements of a realistic scenario in matched-field processing, including complex source and noise time series in a waveguide with water, sediment, and multipath propagation. The noise-canceling processor is found to outperform the Bartlett processor and provide the correct source range for signal-to-noise ratios below -10 dB. The multivalued Bartlett processor is found to outperform the Bartlett processor but not the noise-canceling processor.
authors: Naval Research Laboratory, Stennis Space Center, Mississippi 39529, USA. mike.collins@nrlssc.navy.mil
authors: Michael D
authors: MD
authors: Collins
authors: Ralph N
authors: RN
authors: Baer
authors: Harry J
authors: HJ
authors: Simpson
mesh_terms: D000162:Acoustics; D004867:Equipment Design; D005583:Fourier Analysis; D019015:Geologic Sediments; D016018:Least-Squares Analysis; D008962:Models, Theoretical; D009038:Motion; D009622:Noise; D012815:Signal Processing, Computer-Assisted; D013016:Sound; D013018:Sound Spectrography; D013997:Time Factors; D014867:Water
chemical_list: D014867:Water