Experimental testing of the noise-canceling processor

J Acoust Soc Am. 2011 Sep;130(3):1217-21. doi: 10.1121/1.3621059.

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.

Publication types

  • Comparative Study
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Acoustics*
  • Equipment Design
  • Fourier Analysis
  • Geologic Sediments
  • Least-Squares Analysis
  • Models, Theoretical*
  • Motion
  • Noise*
  • Signal Processing, Computer-Assisted*
  • Sound Spectrography
  • Sound*
  • Time Factors
  • Water

Substances

  • Water