DEVELOPMENT OF A PRACTICAL COHERENT ACOUSTIC DOPPLER CURRENT PROFILER

The feasibility of developing a Coherent Acoustic Doppler Current Profiler (ADCP) with spatial resolution and range comparable to those of commercially available incoherent systems, but with much smaller velocity measurement variance, is being studied. This improvement in measurement accuracy will reduce required averaging times, thus permitting the observation of short time-scale currents (i.e., internal wave breaking) that are beyond the capabilities of available incoherent ADCP's. Several strategies have been analyzed and tested. Among them, transmission of coded acoustic pulses combined with coherent signal processing techniques has been given special attention. This approach may allow the measurement of watermass velocities with high accuracy without the range limitations of conventional pulse-to-pulse coherent systems.

  • Supplemental Notes:
    • Conference paper
  • Authors:
    • Cabrera, R
    • Deines, K
    • Brumley, B
  • Conference:
    • Oceans '87
    • Location: Halifax, NS, Canada
    • Date: 1987-9-28 to 1987-10-1
  • Publication Date: 0

Media Info

  • Features: References;
  • Pagination: 5p.

Subject/Index Terms

Filing Info

  • Accession Number: 00656402
  • Record Type: Publication
  • Source Agency: Maritime Technical Information Facility
  • Files: TRIS
  • Created Date: Jul 21 1994 12:00AM