Application of the Hankel Transform Technique to the Analysis of TL3 leg 1 of the 1993 ACT II Data.

Abstract

An experiment was conducted near borehole 6010 off the New Jersey coast as part of the DARPA ACT II experiment in 1993. Several of the tow tracks of the sound source coincided with tracks from the 1988 Hudson Canyon experiment. For this experiment major differences from 1988 were the accuracy and sampling of the range data, the available sound source which dictated the use of pulses as opposed to CW, and the low signal transmit power at the lower frequencies. Horizontal wavenumber spectra were computed at 100 Hz signal for this experiment and compared with SAFARI calculations. However the 100 Hz signal levels were problematic an consequently the low received signal-to-noise ratio precluded meaningful analysis. At the higher frequencies, the coarseness of the range sampling, although adequate for signal transmission studies, would be aliased in synthetic aperture processing. Despite these problems, these results underline the robustness of this horizontal wavenumber estimation technique

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Document Details

Document Type
Technical Report
Publication Date
Nov 10, 1997
Accession Number
ADA331590

Entities

People

  • James Doutt

Organizations

  • Woods Hole Oceanographic Institution

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Fields
  • Acoustic Signals
  • Background Noise
  • Continental Shelves
  • Data Analysis
  • Frequency
  • High Pressure
  • Measurement
  • Navigation
  • New Jersey
  • Noise
  • Repetition Rate
  • Sampling
  • Sound Pressure
  • Spectra
  • Transmission Loss

Readers

  • Acoustical Oceanography.
  • Approximation Theory.
  • Computer Vision.