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Symposium on Tactical Oceanography Naval Postgraduate School, Monterey, California, 12-15 March 1990 (1991) / Chapter Skim
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ASW Research and Development
Pages 2-3

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
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From page 2...
... The principal objective has been to maximize the signal to noise ratio of steacly narrow band signals. Receiver arrays placed on ship hulls, towed arrays, and sonobuoys released from ships or aircraft all shared these characteristics, with optimal band widths ranging from ten to a few hundred Hz.
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From page 3...
... Sub-bottom propagation of very low frequency energy, · Bohom, surface, and volume reverberation at 50-1 00 Hz, · Matched-field processing, and accompanying descriptions of transmission characteristics, · Mesoscale environmental predictive models and accompanying acoustic models, · Tomography, a potential validation too! for the models and a technique for determining propagation characteristics over large areas, and · Fast acoustic performance prediction models.
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Key Terms

  • frequency active
  • environmental predictive
  • environmental measurement
  • arrays placed
  • volume reverberation

  • frequency bands
  • widths ranging
  • traditional approach
  • readily accessible
  • frequency passive

  • rapidly altered
  • improved environmental
  • propagation characteristics
  • steacly narrow
  • spectrum detection

  • help operators
  • acoustic models
  • summary form
  • principal objective
  • narrow band

  • symposium emphasized
  • navy laboratory
  • prediction models
  • speakers identified
  • approach described

  • submarine design
  • representatives spoke
  • receiver arrays
  • national capability
  • changed threat


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