Fixed Vertical Array

Abstract

The object was to design and build a high gain, single vertical line array capable of being deployed up from the bottom of the ocean, as well as downward from FLIP. It was conceived as a low drag array that would exploit the vertical directionality characteristics of the noise field and the vertical separation of multipaths, especially between surface and submerged sources, to improve array performance in the 100-400 Hz region. At the time (circa 1983), there was much to be exploited in this frequency region. After a number of difficulties, the connectorless array became the vertical surveillance array and has been used in a number of deployments with funding augmentation from the Broad Band CUARP (CNO Urgent ASW Project) and is expected to be used in the new Special Research Program on Reverberation. There is some possibility that, the connectorless array will be used in sea trips related to this work. It should be mentioned that although technical and funding difficulties changed the vertical surveillance program from a rather large five-year program to a much reduced one, it eventually culminated in a useful array for gaining new and unique data on the vertical directionality of the ambient noise field. (CP)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1989
Accession Number
ADA223745

Entities

People

  • Fred H. Fisher

Organizations

  • Scripps Institution of Oceanography

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Ambient Noise
  • California
  • Classification
  • Contracts
  • Data Processing
  • Data Reduction
  • Deployment
  • Drag
  • Frequency
  • Longitude
  • Low Drag
  • Materials
  • Military Research
  • Oceanography
  • Oceans
  • Security

Readers

  • Educational Psychology
  • Electrical Engineering
  • Maritime and Naval Warfare Studies